jsapi

backend/.env.example

@@ -21,3 +21,14 @@ JWT_SECRET=your-secret-key-change-in-production
 # 飞书配置
 FEISHU_APP_ID=
 FEISHU_APP_SECRET=
+
+# 阿里云 OSS 配置
+OSS_ACCESSID=LTAI5tAGiH7bkVkmrniXnfkA
+OSS_ACCESSSECRET=nqklJBft6t3S0A4ZvxF4ci9ni91kmm
+OSS_BUCKET=vehicle-album
+OSS_ENDPOINT=https://oss-cn-beijing.aliyuncs.com
+OSS_STATIC_URL=https://vehicle-album.oss-cn-beijing.aliyuncs.com
+OSS_MAIN_DIR=x_server_mobile
+
+# 域名配置（用于生成文件访问URL）
+MAIN_DOMAIN=http://localhost:8787

backend/app/controller/AuthController.php

@@ -609,4 +609,139 @@ HTML;
             return $this->error($e->getMessage());
         }
     }
+
+    /**
+     * 获取飞书 JS API 鉴权签名
+     * 用于前端初始化飞书 JS SDK
+     *
+     * company 参数可选，如果未提供则从登录 token 中获取用户所属公司
+     */
+    public function feishuJsapiSignature(Request $request): Response
+    {
+        $url = $request->get('url');
+        $companyParam = $request->get('company');
+
+        if (!$url) {
+            return $this->error('缺少 url 参数');
+        }
+
+        try {
+            $companyId = null;
+
+            // 优先使用传入的 company 参数
+            if ($companyParam) {
+                $company = \app\model\Company::find($companyParam);
+                if (!$company) {
+                    return $this->error('公司不存在');
+                }
+                $companyId = $company->id;
+                error_log("✅ 使用参数中的 company: {$companyId}");
+            }
+            // 从 token 中获取用户所属公司
+            else {
+                $companyId = $this->getCompanyId($request);
+                if (!$companyId) {
+                    return $this->error('未登录且未指定公司', 401);
+                }
+                error_log("✅ 从 token 获取 company: {$companyId}");
+            }
+
+            // 获取该公司的默认飞书应用
+            $feishuApp = \app\model\CompanyFeishuApp::where('company_id', $companyId)
+                ->where('system_id', 1)
+                ->where('status', 1)
+                ->first();
+
+            if (!$feishuApp) {
+                return $this->error('该公司未配置飞书应用');
+            }
+
+            // 生成 JS API 签名
+            $signatureData = $this->generateJsapiSignature($feishuApp->id, $url);
+
+            return $this->success([
+                'app_id' => $feishuApp->app_id,
+                'company_id' => $companyId,
+                'jsapi_ticket' => $signatureData['jsapi_ticket'],
+                'noncestr' => $signatureData['noncestr'],
+                'timestamp' => $signatureData['timestamp'],
+                'url' => $signatureData['url'],
+                'signature' => $signatureData['signature'],
+            ]);
+        } catch (\Exception $e) {
+            error_log("❌ feishuJsapiSignature 失败: " . $e->getMessage());
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 生成 JS API 鉴权签名
+     *
+     * @param int $feishuAppId 飞书应用配置ID
+     * @param string $url 当前页面URL
+     * @return array 签名数据
+     */
+    private function generateJsapiSignature(int $feishuAppId, string $url): array
+    {
+        // 获取 jsapi_ticket
+        $jsapiTicket = \app\util\FeishuUtil::getJsapiTicket($feishuAppId);
+
+        // 清理 URL：移除 # 和 ? 后面的参数
+        $url = $this->cleanUrl($url);
+
+        // 生成随机字符串
+        $noncestr = $this->generateNonceStr();
+
+        // 获取毫秒级时间戳
+        $timestamp = (int)round(microtime(true) * 1000);
+
+        // 拼接签名字符串
+        $verifyStr = "jsapi_ticket={$jsapiTicket}&noncestr={$noncestr}&timestamp={$timestamp}&url={$url}";
+
+        // 生成 SHA1 签名
+        $signature = sha1($verifyStr);
+
+        error_log("✅ JS API 签名生成成功: url={$url}");
+
+        return [
+            'jsapi_ticket' => $jsapiTicket,
+            'noncestr' => $noncestr,
+            'timestamp' => $timestamp,
+            'url' => $url,
+            'signature' => $signature,
+        ];
+    }
+
+    /**
+     * 清理 URL，移除 # 和 ? 后面的参数
+     */
+    private function cleanUrl(string $url): string
+    {
+        // 移除 # 后面的内容
+        $pos = strpos($url, '#');
+        if ($pos !== false) {
+            $url = substr($url, 0, $pos);
+        }
+
+        // 移除 ? 后面的内容
+        $pos = strpos($url, '?');
+        if ($pos !== false) {
+            $url = substr($url, 0, $pos);
+        }
+
+        return $url;
+    }
+
+    /**
+     * 生成随机字符串（由数字、字母组成）
+     */
+    private function generateNonceStr(int $length = 16): string
+    {
+        $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+        $noncestr = '';
+        for ($i = 0; $i < $length; $i++) {
+            $noncestr .= $chars[mt_rand(0, strlen($chars) - 1)];
+        }
+        return $noncestr;
+    }
 }

backend/app/controller/BaseController.php

@@ -52,7 +52,7 @@ abstract class BaseController
         }
 
         // 解析 token
-        $payload = app\util\JwtUtil::decode($token);
+        $payload = \app\Util\JwtUtil::decode($token);
         if (!$payload) {
             return null;
         }
@@ -71,4 +71,26 @@ abstract class BaseController
         }
         return $userId;
     }
+
+    /**
+     * 获取当前用户的公司ID
+     */
+    protected function getCompanyId(Request $request): ?int
+    {
+        $token = $request->header('Authorization');
+        if ($token) {
+            $token = str_replace('Bearer ', '', $token);
+        }
+
+        if (!$token) {
+            return null;
+        }
+
+        $payload = \app\Util\JwtUtil::decode($token);
+        if (!$payload) {
+            return null;
+        }
+
+        return (int) ($payload['company_id'] ?? null);
+    }
 }

backend/app/controller/UploadController.php

@@ -0,0 +1,173 @@
+<?php
+
+namespace app\controller;
+
+use app\Service\UploadService;
+use Webman\Http\Request;
+use Webman\Http\Response;
+
+/**
+ * 文件上传控制器
+ */
+class UploadController extends BaseController
+{
+    private UploadService $uploadService;
+
+    public function __construct()
+    {
+        $this->uploadService = new UploadService();
+    }
+
+    /**
+     * 通用文件上传接口
+     */
+    public function upload(Request $request): Response
+    {
+        try {
+            $userId = $this->getUserId($request); // 可选，没有token则为null
+            $partition = $request->post('partition', 'other');
+            $category = $request->post('category', 'general');
+
+            $result = $this->uploadService->upload($request, $partition, $category, $userId);
+
+            return $this->success($result, '上传成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 图片上传接口
+     */
+    public function uploadImage(Request $request): Response
+    {
+        try {
+            $userId = $this->getUserId($request); // 可选，没有token则为null
+            $category = $request->post('category', 'general');
+
+            $result = $this->uploadService->uploadImage($request, $category, $userId);
+
+            return $this->success($result, '上传成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 二手车图片上传接口
+     */
+    public function uploadUsedCarImage(Request $request): Response
+    {
+        try {
+            $userId = $this->getUserId($request); // 可选，没有token则为null
+
+            $result = $this->uploadService->uploadUsedCarImage($request, $userId);
+
+            return $this->success($result, '上传成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 批量上传图片（二手车专用）
+     */
+    public function batchUploadImages(Request $request): Response
+    {
+        try {
+            $userId = $this->getUserId($request); // 可选，没有token则为null
+            $files = $request->files();
+
+            if (empty($files)) {
+                return $this->error('请选择要上传的文件');
+            }
+
+            $results = [];
+            $errors = [];
+
+            foreach ($files['files'] ?? [] as $index => $file) {
+                try {
+                    // 创建临时请求对象处理单个文件
+                    $tempRequest = new Request(
+                        $request->method(),
+                        $request->path(),
+                        $request->headers(),
+                        ['file' => $file]
+                    );
+
+                    $result = $this->uploadService->uploadUsedCarImage($tempRequest, $userId);
+                    $results[] = $result;
+                } catch (\Exception $e) {
+                    $errors[] = [
+                        'index' => $index,
+                        'error' => $e->getMessage(),
+                    ];
+                }
+            }
+
+            return $this->success([
+                'success' => $results,
+                'errors' => $errors,
+                'total' => count($results),
+                'failed' => count($errors),
+            ], '批量上传完成');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 删除文件
+     */
+    public function deleteFile(Request $request): Response
+    {
+        try {
+            $userId = $this->getUserId($request); // 可选，用于权限验证
+            $fileId = (int)$request->post('id');
+
+            if ($fileId <= 0) {
+                return $this->error('无效的文件ID');
+            }
+
+            $this->uploadService->deleteFile($fileId, $userId);
+
+            return $this->success(null, '删除成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 获取文件信息
+     */
+    public function getFileInfo(Request $request): Response
+    {
+        try {
+            $fileId = (int)$request->get('id');
+
+            if ($fileId <= 0) {
+                return $this->error('无效的文件ID');
+            }
+
+            $info = $this->uploadService->getFileInfo($fileId);
+
+            return $this->success($info);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 获取分区配置
+     */
+    public function getPartitionConfig(Request $request): Response
+    {
+        try {
+            $configs = UploadService::getPartitionConfigs();
+
+            return $this->success($configs);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+}

backend/app/controller/UsedCarController.php

@@ -0,0 +1,378 @@
+<?php
+
+namespace app\controller;
+
+use app\Service\PdfService;
+use app\Service\UsedCarService;
+use Webman\Http\Request;
+use Webman\Http\Response;
+
+/**
+ * 二手车控制器
+ */
+class UsedCarController extends BaseController
+{
+    private UsedCarService $service;
+    private PdfService $pdfService;
+
+    public function __construct()
+    {
+        $this->service = new UsedCarService();
+        $this->pdfService = new PdfService();
+    }
+
+    /**
+     * 获取二手车列表
+     */
+    public function list(Request $request): Response
+    {
+        $userId = $this->getUserId($request);
+        $type = $request->get('type', 'self');
+        $page = (int)$request->get('page', 1);
+        $pageSize = (int)$request->get('page_size', 20);
+        $keyword = $request->get('keyword');
+        $status = $request->get('status');
+
+        try {
+            $result = $this->service->getList(
+                $userId,
+                $type,
+                $page,
+                $pageSize,
+                $keyword,
+                $status !== null ? (int)$status : null
+            );
+
+            return $this->success($result);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 获取二手车详情
+     */
+    public function detail(Request $request): Response
+    {
+        $userId = $this->getUserId($request);
+        $id = (int)$request->get('id');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $detail = $this->service->getDetail($id, $userId);
+            return $this->success($detail);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 创建二手车记录
+     */
+    public function create(Request $request): Response
+    {
+        $userId = $this->requireAuth($request);
+        $data = $request->post();
+
+        try {
+            $car = $this->service->create($data, $userId);
+            return $this->success($car->toArray(), '创建成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 更新二手车记录
+     */
+    public function update(Request $request): Response
+    {
+        $userId = $this->requireAuth($request);
+        $id = (int)$request->get('id');
+        $data = $request->post();
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $car = $this->service->update($id, $data, $userId);
+            return $this->success($car->toArray(), '更新成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 删除二手车记录
+     */
+    public function delete(Request $request): Response
+    {
+        $userId = $this->requireAuth($request);
+        $id = (int)$request->get('id');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $this->service->delete($id, $userId);
+            return $this->success(null, '删除成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 更新状态
+     */
+    public function updateStatus(Request $request): Response
+    {
+        $userId = $this->requireAuth($request);
+        $id = (int)$request->post('id');
+        $status = (int)$request->post('status');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $this->service->updateStatus($id, $status, $userId);
+            return $this->success(null, '状态更新成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * URL抓取车辆信息
+     */
+    public function crawlByUrl(Request $request): Response
+    {
+        $this->requireAuth($request);
+        $url = $request->post('url') ?: $request->get('url');
+
+        if (empty($url)) {
+            return $this->error('URL不能为空');
+        }
+
+        try {
+            $data = $this->service->crawlByUrl($url);
+            return $this->success($data);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 移动端链接抓取（处理短链）
+     */
+    public function crawlMobileUrl(Request $request): Response
+    {
+        $this->requireAuth($request);
+        $url = $request->post('url') ?: $request->get('url');
+
+        if (empty($url)) {
+            return $this->error('URL不能为空');
+        }
+
+        try {
+            $data = $this->service->crawlByUrl($url);
+            return $this->success($data);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 关键词搜索懂车帝车型数据
+     */
+    public function crawlKeyword(Request $request): Response
+    {
+        $this->requireAuth($request);
+        $keyword = $request->post('keyword') ?: $request->get('keyword');
+
+        if (empty($keyword)) {
+            return $this->error('关键词不能为空');
+        }
+
+        try {
+            $crawlService = new \app\Service\UsedCarCrawlService();
+            $data = $crawlService->searchByKeyword($keyword);
+            return $this->success($data);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 生成PDF
+     */
+    public function generatePdf(Request $request): Response
+    {
+        $userId = $this->requireAuth($request);
+        $id = (int)$request->post('id');
+        $price = (float)$request->post('price');
+        $lang = $request->post('lang', 'zh');
+        $currency = $request->post('currency', 'CNY');
+        $tradeTerm = $request->post('trade_term', '');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        if ($price <= 0) {
+            return $this->error('请输入有效的价格');
+        }
+
+        try {
+            $pdfFileName = $this->pdfService->generateUsedCarPdf(
+                $id,
+                $userId,
+                $price,
+                $lang,
+                $currency,
+                $tradeTerm
+            );
+
+            return $this->success([
+                'pdf_file_name' => $pdfFileName,
+            ], 'PDF生成成功');
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 下载PDF
+     */
+    public function downloadPdf(Request $request): Response
+    {
+        $userId = $this->getUserId($request);
+        $id = (int)$request->get('id');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $car = \app\Model\UsedCar::findOrFail($id);
+
+            if (empty($car->pdf_src)) {
+                return $this->error('PDF文件不存在，请先生成PDF');
+            }
+
+            $pdfPath = $this->pdfService->getPdfPath($car->pdf_src);
+
+            if (!$this->pdfService->pdfExists($car->pdf_src)) {
+                return $this->error('PDF文件不存在');
+            }
+
+            // 设置下载的文件名
+            $filename = $car->product_name . '-' . $car->code . '-' . $car->id . '.pdf';
+
+            // 返回文件下载响应
+            return response()->file($pdfPath, $filename);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 获取PDF预览URL
+     */
+    public function getPdfUrl(Request $request): Response
+    {
+        $userId = $this->getUserId($request);
+        $id = (int)$request->get('id');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $car = \app\Model\UsedCar::findOrFail($id);
+
+            if (empty($car->pdf_src)) {
+                return $this->error('PDF文件不存在，请先生成PDF');
+            }
+
+            if (!$this->pdfService->pdfExists($car->pdf_src)) {
+                return $this->error('PDF文件不存在');
+            }
+
+            // 将PDF复制到public目录以便访问
+            $publicPdfDir = public_path('pdf');
+            if (!is_dir($publicPdfDir)) {
+                mkdir($publicPdfDir, 0755, true);
+            }
+
+            $publicPdfPath = $publicPdfDir . '/' . $car->pdf_src;
+            if (!file_exists($publicPdfPath)) {
+                copy($this->pdfService->getPdfPath($car->pdf_src), $publicPdfPath);
+            }
+
+            // 构建访问URL
+            $baseUrl = $this->getBaseUrl($request);
+            $pdfUrl = $baseUrl . '/pdf/' . $car->pdf_src;
+
+            return $this->success([
+                'pdf_url' => $pdfUrl,
+                'file_name' => $car->product_name . '-' . $car->code . '-' . $car->id . '.pdf',
+            ]);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 预览PDF（直接返回PDF内容）
+     */
+    public function previewPdf(Request $request): Response
+    {
+        $id = (int)$request->get('id');
+
+        if ($id <= 0) {
+            return $this->error('无效的ID');
+        }
+
+        try {
+            $car = \app\Model\UsedCar::findOrFail($id);
+
+            if (empty($car->pdf_src)) {
+                return $this->error('PDF文件不存在，请先生成PDF');
+            }
+
+            $pdfPath = $this->pdfService->getPdfPath($car->pdf_src);
+
+            if (!$this->pdfService->pdfExists($car->pdf_src)) {
+                return $this->error('PDF文件不存在');
+            }
+
+            // 返回PDF内容
+            $content = file_get_contents($pdfPath);
+
+            return response($content, 200, [
+                'Content-Type' => 'application/pdf',
+                'Access-Control-Allow-Origin' => '*',
+                'Access-Control-Allow-Methods' => 'GET, OPTIONS',
+                'Access-Control-Allow-Headers' => '*',
+            ]);
+        } catch (\Exception $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
+    /**
+     * 获取基础URL
+     */
+    private function getBaseUrl(Request $request): string
+    {
+        $scheme = $request->header('x-forwarded-proto') ?? $request->header('x-scheme') ?? 'https';
+        $host = $request->host();
+        return $scheme . '://' . $host;
+    }
+}

backend/app/model/UploadedFiles.php

@@ -0,0 +1,115 @@
+<?php
+
+namespace app\Model;
+
+use support\Model;
+
+/**
+ * 上传文件记录模型
+ */
+class UploadedFiles extends Model
+{
+    /**
+     * The table associated with the model.
+     *
+     * @var string
+     */
+    protected $table = 'uploaded_files';
+
+    /**
+     * The primary key associated with the table.
+     *
+     * @var string
+     */
+    protected $primaryKey = 'id';
+
+    /**
+     * Indicates if the model should be timestamped.
+     *
+     * @var bool
+     */
+    public $timestamps = true;
+
+    /**
+     * 可批量赋值的字段
+     */
+    protected $fillable = [
+        'file_name',
+        'file_path',
+        'file_size',
+        'file_type',
+        'category',
+        'original_name',
+        'extension',
+        'partition',
+        'upload_ip',
+        'user_agent',
+        'user_id',
+    ];
+
+    /**
+     * 上传分区配置
+     */
+    public static array $uploadPartitions = [
+        'image' => [
+            'path' => 'uploads/images',
+            'max_size' => 10 * 1024 * 1024, // 10MB
+            'allowed_types' => ['image/jpeg', 'image/png', 'image/gif', 'image/webp'],
+            'extensions' => ['jpg', 'jpeg', 'png', 'gif', 'webp']
+        ],
+        'avatar' => [
+            'path' => 'uploads/avatars',
+            'max_size' => 5 * 1024 * 1024, // 5MB
+            'allowed_types' => ['image/jpeg', 'image/png', 'image/webp'],
+            'extensions' => ['jpg', 'jpeg', 'png', 'webp']
+        ],
+        'document' => [
+            'path' => 'uploads/documents',
+            'max_size' => 20 * 1024 * 1024, // 20MB
+            'allowed_types' => [
+                'application/pdf',
+                'application/msword',
+                'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+                'application/vnd.ms-excel',
+                'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+            ],
+            'extensions' => ['pdf', 'doc', 'docx', 'xls', 'xlsx']
+        ],
+        'usedcar' => [
+            'path' => 'uploads/usedcar',
+            'max_size' => 10 * 1024 * 1024, // 10MB
+            'allowed_types' => ['image/jpeg', 'image/png', 'image/webp', 'image/gif'],
+            'extensions' => ['jpg', 'jpeg', 'png', 'webp', 'gif']
+        ],
+        'other' => [
+            'path' => 'uploads/others',
+            'max_size' => 5 * 1024 * 1024, // 5MB
+            'allowed_types' => [],
+            'extensions' => []
+        ]
+    ];
+
+    /**
+     * 关联用户
+     */
+    public function user()
+    {
+        return $this->belongsTo(User::class, 'user_id', 'id');
+    }
+
+    /**
+     * 获取分区配置
+     */
+    public static function getPartitionConfig(string $partition): ?array
+    {
+        return self::$uploadPartitions[$partition] ?? self::$uploadPartitions['other'];
+    }
+
+    /**
+     * 获取所有分区配置
+     */
+    public static function getAllPartitions(): array
+    {
+        return self::$uploadPartitions;
+    }
+}

backend/app/model/UsedCar.php

@@ -0,0 +1,143 @@
+<?php
+
+namespace app\Model;
+
+use support\Model;
+
+/**
+ * 二手车信息模型
+ */
+class UsedCar extends Model
+{
+    protected $table = 'used_car';
+
+    protected $fillable = [
+        'code',
+        'user_id',
+        'role',
+        'product_name',
+        'vin',
+        'price',
+        'source_place',
+        'plate_place',
+        'plate_time',
+        'displacement',
+        'mileage',
+        'power',
+        'body_color',
+        'images',
+        'condition_desc',
+        'attachment',
+        'pdf_src',
+        'source_url',
+        'crawl_title',
+        'crawl_brand',
+        'crawl_brand_id',
+        'crawl_series',
+        'crawl_series_id',
+        'crawl_year',
+        'crawl_msrp',
+        'crawl_car_id',
+        'status',
+        'sort',
+    ];
+
+    protected $casts = [
+        'price' => 'integer',
+        'mileage' => 'integer',
+        'crawl_brand_id' => 'integer',
+        'crawl_series_id' => 'integer',
+        'crawl_msrp' => 'integer',
+        'crawl_car_id' => 'integer',
+        'status' => 'integer',
+        'sort' => 'integer',
+        'attachment' => 'array',
+        'created_at' => 'datetime',
+        'updated_at' => 'datetime',
+    ];
+
+    /**
+     * 状态常量
+     */
+    const STATUS_NORMAL = 1;      // 正常
+    const STATUS_ARCHIVED = 2;    // 归档
+    const STATUS_DELETED = 3;     // 删除
+
+    /**
+     * 关联用户
+     */
+    public function user()
+    {
+        return $this->belongsTo(User::class, 'user_id');
+    }
+
+    /**
+     * 关联PDF生成日志
+     */
+    public function pdfLogs()
+    {
+        return $this->hasMany(UsedCarPdfLog::class, 'used_car_id')->orderBy('created_at', 'desc');
+    }
+
+    /**
+     * 判断是否可以编辑
+     */
+    public function canEdit(): bool
+    {
+        return $this->status === self::STATUS_NORMAL;
+    }
+
+    /**
+     * 判断是否已删除
+     */
+    public function isDeleted(): bool
+    {
+        return $this->status === self::STATUS_DELETED;
+    }
+
+    /**
+     * 判断是否已归档
+     */
+    public function isArchived(): bool
+    {
+        return $this->status === self::STATUS_ARCHIVED;
+    }
+
+    /**
+     * 获取图片URL数组
+     */
+    public function getImageUrlsAttribute(): array
+    {
+        if (empty($this->images)) {
+            return [];
+        }
+        return explode(',', $this->images);
+    }
+
+    /**
+     * 作用域：正常状态
+     */
+    public function scopeNormal($query)
+    {
+        return $query->where('status', self::STATUS_NORMAL);
+    }
+
+    /**
+     * 作用域：按用户筛选
+     */
+    public function scopeByUser($query, int $userId)
+    {
+        return $query->where('user_id', $userId);
+    }
+
+    /**
+     * 作用域：搜索关键词
+     */
+    public function scopeSearch($query, string $keyword)
+    {
+        return $query->where(function ($q) use ($keyword) {
+            $q->where('product_name', 'like', "%{$keyword}%")
+                ->orWhere('code', 'like', "%{$keyword}%");
+        });
+    }
+}

backend/app/model/UsedCarPdfLog.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace app\Model;
+
+use support\Model;
+
+/**
+ * 二手车PDF生成日志模型
+ */
+class UsedCarPdfLog extends Model
+{
+    protected $table = 'used_car_pdf_log';
+
+    protected $fillable = [
+        'user_id',
+        'used_car_id',
+        'price_snapshot',
+        'pdf_path',
+    ];
+
+    protected $casts = [
+        'price_snapshot' => 'integer',
+        'created_at' => 'datetime',
+        'updated_at' => 'datetime',
+    ];
+
+    /**
+     * 关联用户
+     */
+    public function user()
+    {
+        return $this->belongsTo(User::class, 'user_id');
+    }
+
+    /**
+     * 关联二手车
+     */
+    public function usedCar()
+    {
+        return $this->belongsTo(UsedCar::class, 'used_car_id');
+    }
+
+    /**
+     * 作用域：按二手车筛选
+     */
+    public function scopeByUsedCar($query, int $usedCarId)
+    {
+        return $query->where('used_car_id', $usedCarId);
+    }
+
+    /**
+     * 作用域：按用户筛选
+     */
+    public function scopeByUser($query, int $userId)
+    {
+        return $query->where('user_id', $userId);
+    }
+}

backend/app/process/Task.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace app\process;
+
+use app\Model\UsedCar;
+use support\Db;
+use support\Log;
+use Workerman\Crontab\Crontab;
+
+/**
+ * 定时任务进程
+ * 用于定期清理PDF文件和归档二手车记录
+ */
+class Task
+{
+    public function onWorkerStart()
+    {
+        // 每天凌晨3点清理PDF文件
+        new Crontab('0 0 3 * * *', function () {
+            Log::info('开始清理PDF文件', ['time' => date('Y-m-d H:i:s')]);
+
+            // 清空数据库中的PDF路径
+            Db::table('used_car')->update(['pdf_src' => '']);
+
+            // 删除runtime目录下的PDF文件
+            $pdfFiles = glob(runtime_path('pdf/*.pdf'));
+            if (is_array($pdfFiles)) {
+                array_map('unlink', $pdfFiles);
+            }
+
+            // 删除public目录下的PDF文件
+            $publicPdfFiles = glob(public_path('pdf/*.pdf'));
+            if (is_array($publicPdfFiles)) {
+                array_map('unlink', $publicPdfFiles);
+            }
+
+            Log::info('PDF文件清理完成', ['time' => date('Y-m-d H:i:s')]);
+        });
+
+        // 每3小时自动归档15天前的二手车记录（将状态改为删除）
+        new Crontab('0 25 */3 * * *', function () {
+            Log::info('开始归档二手车记录', ['time' => date('Y-m-d H:i:s')]);
+
+            // 将15天前创建的记录状态改为删除（状态=3）
+            $count = Db::table('used_car')
+                ->where('status', UsedCar::STATUS_NORMAL)
+                ->where('created_at', '<', date('Y-m-d H:i:s', time() - (86400 * 15)))
+                ->update(['status' => UsedCar::STATUS_DELETED]);
+
+            Log::info('归档完成', ['affected_rows' => $count, 'time' => date('Y-m-d H:i:s')]);
+        });
+    }
+}

backend/app/service/OssService.php

@@ -0,0 +1,228 @@
+<?php
+/**
+ * 阿里云 OSS 服务（在最开始设置错误报告）
+ */
+
+namespace app\Service;
+
+class OssService
+{
+    private string $accessKeyId;
+    private string $accessKeySecret;
+    private string $bucket;
+    private string $endpoint;
+    private string $staticUrl;
+    private string $mainDir;
+    private $ossClient = null;
+
+    public function __construct()
+    {
+        // 在构造函数开始时就禁用 deprecated 警告
+        $oldLevel = error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+
+        try {
+            $this->accessKeyId = getenv('OSS_ACCESSID') ?: '';
+            $this->accessKeySecret = getenv('OSS_ACCESSSECRET') ?: '';
+            $this->bucket = getenv('OSS_BUCKET') ?: '';
+            $this->endpoint = getenv('OSS_ENDPOINT') ?: '';
+            $this->staticUrl = getenv('OSS_STATIC_URL') ?: '';
+            $this->mainDir = rtrim(getenv('OSS_MAIN_DIR') ?: 'uploads', '/');
+
+            if (empty($this->accessKeyId) || empty($this->accessKeySecret) || empty($this->bucket) || empty($this->endpoint)) {
+                throw new \Exception('OSS 配置不完整，请检查 .env 文件');
+            }
+        } finally {
+            error_reporting($oldLevel);
+        }
+    }
+
+    /**
+     * 获取 OSS Client 实例（延迟加载 + 错误抑制）
+     */
+    private function getClient()
+    {
+        if ($this->ossClient === null) {
+            $oldLevel = error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+
+            try {
+                $this->ossClient = new \OSS\OssClient($this->accessKeyId, $this->accessKeySecret, $this->endpoint);
+            } catch (\Throwable $e) {
+                throw new \Exception('OSS 初始化失败: ' . $e->getMessage());
+            } finally {
+                error_reporting($oldLevel);
+            }
+        }
+        return $this->ossClient;
+    }
+
+    /**
+     * 上传文件到 OSS
+     *
+     * @param string $filePath 本地文件路径
+     * @param string $objectKey OSS上存储的对象名称
+     * @return string 文件的公共访问 URL
+     * @throws \Exception
+     */
+    public function uploadFile(string $filePath, string $objectKey): string
+    {
+        $oldLevel = error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+        try {
+            $options = [
+                \OSS\OssClient::OSS_HEADERS => [
+                    'Content-Type' => $this->getMimeType($filePath),
+                ],
+            ];
+
+            $this->getClient()->uploadFile($this->bucket, $objectKey, $filePath, $options);
+            return $this->getPublicUrl($objectKey);
+        } catch (\OSS\Core\OssException $e) {
+            throw new \Exception('OSS 上传失败: ' . $e->getMessage());
+        } catch (\Throwable $e) {
+            throw new \Exception('OSS 上传失败: ' . $e->getMessage());
+        } finally {
+            error_reporting($oldLevel);
+        }
+    }
+
+    /**
+     * 删除 OSS 上的文件
+     *
+     * @param string $objectKey OSS上存储的对象名称
+     * @return bool
+     * @throws \Exception
+     */
+    public function deleteFile(string $objectKey): bool
+    {
+        $oldLevel = error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+        try {
+            $this->getClient()->deleteObject($this->bucket, $objectKey);
+            return true;
+        } catch (\OSS\Core\OssException $e) {
+            throw new \Exception('OSS 删除失败: ' . $e->getMessage());
+        } catch (\Throwable $e) {
+            throw new \Exception('OSS 删除失败: ' . $e->getMessage());
+        } finally {
+            error_reporting($oldLevel);
+        }
+    }
+
+    /**
+     * 批量删除文件
+     *
+     * @param array $objectKeys 对象名称数组
+     * @return bool
+     * @throws \Exception
+     */
+    public function deleteFiles(array $objectKeys): bool
+    {
+        $oldLevel = error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+        try {
+            $this->getClient()->deleteObjects($this->bucket, $objectKeys);
+            return true;
+        } catch (\OSS\Core\OssException $e) {
+            throw new \Exception('OSS 批量删除失败: ' . $e->getMessage());
+        } catch (\Throwable $e) {
+            throw new \Exception('OSS 批量删除失败: ' . $e->getMessage());
+        } finally {
+            error_reporting($oldLevel);
+        }
+    }
+
+    /**
+     * 获取文件的公共访问 URL
+     *
+     * @param string $objectKey
+     * @return string
+     */
+    public function getPublicUrl(string $objectKey): string
+    {
+        if (!empty($this->staticUrl)) {
+            return rtrim($this->staticUrl, '/') . '/' . $objectKey;
+        }
+
+        return 'https://' . $this->bucket . '.' . str_replace('https://', '', $this->endpoint) . '/' . $objectKey;
+    }
+
+    /**
+     * 生成带签名的访问 URL（用于私有bucket）
+     *
+     * @param string $objectKey
+     * @param int $timeout 有效期（秒）
+     * @return string
+     */
+    public function getSignedUrl(string $objectKey, int $timeout = 3600): string
+    {
+        $oldLevel = error_reporting(E_ALL & ~E_DEPRECATED & ~E_USER_DEPRECATED);
+        try {
+            return $this->getClient()->signUrl($this->bucket, $objectKey, $timeout);
+        } catch (\Throwable $e) {
+            return $this->getPublicUrl($objectKey);
+        } finally {
+            error_reporting($oldLevel);
+        }
+    }
+
+    /**
+     * 获取完整的对象键（包含主目录）
+     *
+     * @param string $path 相对路径
+     * @return string
+     */
+    public function getObjectKey(string $path): string
+    {
+        $path = ltrim($path, '/');
+        return $this->mainDir ? ($this->mainDir . '/' . $path) : $path;
+    }
+
+    /**
+     * 检查 OSS 是否已配置
+     *
+     * @return bool
+     */
+    public static function isConfigured(): bool
+    {
+        return !empty(getenv('OSS_ACCESSID'))
+            && !empty(getenv('OSS_ACCESSSECRET'))
+            && !empty(getenv('OSS_BUCKET'))
+            && !empty(getenv('OSS_ENDPOINT'));
+    }
+
+    /**
+     * 获取文件的 MIME 类型
+     *
+     * @param string $filePath
+     * @return string
+     */
+    private function getMimeType(string $filePath): string
+    {
+        $extension = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));
+
+        $mimeMap = [
+            'jpg' => 'image/jpeg',
+            'jpeg' => 'image/jpeg',
+            'png' => 'image/png',
+            'gif' => 'image/gif',
+            'webp' => 'image/webp',
+            'bmp' => 'image/bmp',
+            'pdf' => 'application/pdf',
+            'doc' => 'application/msword',
+            'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+            'xls' => 'application/vnd.ms-excel',
+            'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+            'txt' => 'text/plain',
+            'zip' => 'application/zip',
+        ];
+
+        return $mimeMap[$extension] ?? 'application/octet-stream';
+    }
+
+    /**
+     * 获取 OSS 主目录
+     *
+     * @return string
+     */
+    public function getMainDir(): string
+    {
+        return $this->mainDir;
+    }
+}

backend/app/service/PdfService.php

@@ -0,0 +1,521 @@
+<?php
+
+namespace app\Service;
+
+use app\Model\UsedCar;
+use app\Model\UsedCarPdfLog;
+use app\Model\User;
+use Mpdf\Mpdf;
+
+/**
+ * PDF生成服务
+ * 用于生成二手车相关的PDF文档
+ */
+class PdfService
+{
+    /**
+     * 语言映射
+     */
+    private const LANGUAGES = [
+        'zh' => '中文',
+        'en' => '英语',
+        'ru' => '俄语',
+        'es' => '西班牙语',
+        'fr' => '法语',
+    ];
+
+    /**
+     * 货币符号映射
+     */
+    private const CURRENCIES = [
+        'CNY' => '¥',
+        'USD' => '$',
+        'RUB' => '₽',
+        'AED' => 'د.إ',
+        'EUR' => '€',
+    ];
+
+    /**
+     * 生成二手车PDF
+     *
+     * @param int $usedCarId 二手车ID
+     * @param int $userId 用户ID
+     * @param float $price 价格（用于PDF显示）
+     * @param string $lang 语言代码
+     * @param string $currency 货币代码
+     * @param string $tradeTerm 贸易条款
+     * @return string PDF文件名
+     * @throws \Exception
+     */
+    public function generateUsedCarPdf(int $usedCarId, int $userId, float $price, string $lang = 'zh', string $currency = 'CNY', string $tradeTerm = ''): string
+    {
+        // 验证参数
+        if (!isset(self::LANGUAGES[$lang])) {
+            throw new \Exception('不支持的语言: ' . $lang);
+        }
+        if (!isset(self::CURRENCIES[$currency])) {
+            throw new \Exception('不支持的货币: ' . $currency);
+        }
+
+        // 获取车辆信息
+        $car = UsedCar::with('user')->findOrFail($usedCarId);
+
+        // 检查权限
+        if ($car->user_id !== $userId) {
+            //throw new \Exception('无权生成此车辆的PDF');
+        }
+
+        // 获取用户信息
+        $user = $car->user ?? User::findOrFail($userId);
+
+        // 准备PDF数据
+        $pdfData = $this->preparePdfData($car, $price, $lang, $currency, $tradeTerm, $user);
+
+        // 生成PDF
+        $pdfFileName = $this->renderPdf($pdfData, $car, $user, $lang);
+
+        // 更新车辆记录
+        $car->pdf_src = $pdfFileName;
+        $car->save();
+
+        // 记录PDF生成日志
+        UsedCarPdfLog::create([
+            'user_id' => $userId,
+            'used_car_id' => $usedCarId,
+            'price_snapshot' => (int)($price * 100), // 转换为分
+            'pdf_path' => $pdfFileName,
+        ]);
+
+        // 清理临时文件
+        $this->cleanupTempFiles();
+
+        return $pdfFileName;
+    }
+
+    /**
+     * 准备PDF数据
+     */
+    private function preparePdfData(UsedCar $car, float $price, string $lang, string $currency, string $tradeTerm, User $user): array
+    {
+        // 获取字段翻译
+        $field = $this->getFieldTranslations($lang);
+        $field['currency'] = self::CURRENCIES[$currency];
+
+        // 获取名片翻译
+        $contactField = $this->getContactTranslations($lang);
+
+        // 构建车辆名称
+        $productName = trim(($car->crawl_brand ?? '') . ' ' . ($car->crawl_series ?? '') . ' ' . ($car->crawl_year ?? '') . '款 ' . ($car->crawl_title ?? $car->product_name));
+
+        // 处理图片 - 下载到本地
+        $images = [];
+        $imageDir = runtime_path('pdf/images/');
+        if (!is_dir($imageDir)) {
+            mkdir($imageDir, 0755, true);
+        }
+
+        if (!empty($car->images)) {
+            $imageUrls = explode(',', $car->images);
+            $crawlService = new UsedCarCrawlService();
+            $downloadedImages = $crawlService->downloadImages($imageUrls, $imageDir);
+
+            foreach ($downloadedImages as $localPath) {
+                if ($localPath && file_exists($localPath)) {
+                    $images[] = $localPath;
+                }
+            }
+        }
+
+        // 处理附件PDF
+        $attachments = [];
+        if (!empty($car->attachment)) {
+            $attachmentData = json_decode($car->attachment, true);
+            if (is_array($attachmentData)) {
+                $attachmentDir = runtime_path('pdf/attachment/');
+                if (!is_dir($attachmentDir)) {
+                    mkdir($attachmentDir, 0755, true);
+                }
+
+                foreach ($attachmentData as $attachment) {
+                    $src = $attachment['src'] ?? '';
+                    if (str_ends_with(strtolower($src), '.pdf')) {
+                        // 下载PDF附件
+                        $localPath = $this->downloadAttachment($src, $attachmentDir);
+                        if ($localPath && file_exists($localPath)) {
+                            $attachments[] = $localPath;
+                        }
+                    }
+                }
+            }
+        }
+
+        // 处理社交二维码
+        $socialCode = '';
+        if (!empty($user->social_code)) {
+            $socialCodePath = $this->downloadSocialCode($user->social_code);
+            if ($socialCodePath && file_exists($socialCodePath)) {
+                $socialCode = $socialCodePath;
+            }
+        }
+
+        return [
+            'car' => [
+                'product_name' => $productName,
+                'price' => $price,
+                'trade' => $tradeTerm,
+                'plate_time' => $car->plate_time ?? '',
+                'displacement' => $car->displacement ?? '',
+                'mileage' => $car->mileage ?? 0,
+                'power' => $car->power ?? '',
+                'body_color' => $car->body_color ?? '',
+                'condition_desc' => $car->condition_desc ?? '',
+                'images' => $images,
+                'attachment' => $attachments,
+                'created_at' => $car->created_at ? $car->created_at->format('Y-m-d H:i:s') : '',
+            ],
+            'user' => [
+                'name' => $user->name ?? '',
+                'name_en' => $user->name_en ?? $user->name ?? '',
+                'email' => $user->email ?? '',
+                'phone' => $user->phone ?? '',
+                'whatsapp' => $user->whatsapp ?? '',
+                'social' => !empty($user->social_code),
+                'social_code' => $socialCode,
+            ],
+            'field' => $field,
+            'contact_field' => $contactField,
+            'lang' => $lang,
+        ];
+    }
+
+    /**
+     * 渲染PDF
+     */
+    private function renderPdf(array $pdfData, UsedCar $car, User $user, string $lang): string
+    {
+        // 创建临时目录
+        $tempDir = runtime_path('pdf/temp/');
+        if (!is_dir($tempDir)) {
+            mkdir($tempDir, 0755, true);
+        }
+
+        // 初始化mPDF
+        $mpdf = new Mpdf([
+            'mode' => 'utf-8',
+            'format' => 'A4-L', // 横向
+            'margin_top' => 10,
+            'margin_bottom' => 10,
+            'margin_left' => 10,
+            'margin_right' => 10,
+            'tempDir' => $tempDir,
+            'default_font' => 'sun-exta',
+        ]);
+
+        // 设置水印
+        $watermarkText = $pdfData['user']['name_en'] ?? $pdfData['user']['name'];
+        if (!empty($watermarkText)) {
+            $mpdf->SetWatermarkText($watermarkText, 0.08);
+            $mpdf->showWatermarkText = true;
+        }
+
+        // 渲染车辆详情页面
+        ob_start();
+        // 保存车辆信息用于文件名（extract会覆盖$car变量）
+        $carCode = $car->code;
+        $carId = $car->id;
+        $carTpl = runtime_path('pdf/templates/usedCar.stub');
+        extract([
+            'car' => $pdfData['car'],
+            'field' => $pdfData['field'],
+        ]);
+        include $carTpl;
+        $carHtml = ob_get_clean();
+        $mpdf->WriteHTML($carHtml);
+
+        // 追加附件PDF
+        foreach ($pdfData['car']['attachment'] as $attachmentPdf) {
+            $this->appendPdf($mpdf, $attachmentPdf);
+        }
+
+        // 添加名片页面
+        $mpdf->AddPage();
+        ob_start();
+        $cardTpl = runtime_path('pdf/templates/contactCard.stub');
+        extract([
+            'user' => $pdfData['user'],
+            'contactField' => $pdfData['contact_field'],
+        ]);
+        include $cardTpl;
+        $cardHtml = ob_get_clean();
+        $mpdf->WriteHTML($cardHtml);
+
+        // 生成PDF文件
+        $pdfDir = runtime_path('pdf/');
+        if (!is_dir($pdfDir)) {
+            mkdir($pdfDir, 0755, true);
+        }
+
+        $pdfFileName = 'usedcar-' . $carCode . '-' . $carId . '-' . $lang . '-' . substr(time(), -6) . '.pdf';
+        $pdfPath = $pdfDir . '/' . $pdfFileName;
+
+        $mpdf->Output($pdfPath, \Mpdf\Output\Destination::FILE);
+
+        return $pdfFileName;
+    }
+
+    /**
+     * 追加PDF到现有文档
+     */
+    private function appendPdf(Mpdf $mpdf, string $pdfPath): void
+    {
+        if (!file_exists($pdfPath)) {
+            return;
+        }
+
+        try {
+            $pageCount = $mpdf->SetSourceFile($pdfPath);
+            for ($i = 1; $i <= $pageCount; $i++) {
+                $tplId = $mpdf->ImportPage($i);
+                $size = $mpdf->getTemplateSize($tplId);
+
+                $mpdf->AddPageByArray([
+                    'orientation' => $size['orientation'],
+                    'sheet-size' => [$size['width'], $size['height']]
+                ]);
+
+                $mpdf->UseTemplate($tplId);
+            }
+        } catch (\Exception $e) {
+            error_log('追加PDF失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 下载附件
+     */
+    private function downloadAttachment(string $url, string $saveDir): ?string
+    {
+        $filename = md5($url) . '.pdf';
+        $savePath = $saveDir . $filename;
+
+        if (file_exists($savePath)) {
+            return $savePath;
+        }
+
+        try {
+            $content = file_get_contents($url);
+            if ($content !== false) {
+                file_put_contents($savePath, $content);
+                return $savePath;
+            }
+        } catch (\Exception $e) {
+            error_log('下载附件失败: ' . $e->getMessage());
+        }
+
+        return null;
+    }
+
+    /**
+     * 下载社交二维码
+     */
+    private function downloadSocialCode(string $url): ?string
+    {
+        $saveDir = runtime_path('pdf/qrcode/');
+        if (!is_dir($saveDir)) {
+            mkdir($saveDir, 0755, true);
+        }
+
+        $filename = md5($url) . '.jpg';
+        $savePath = $saveDir . $filename;
+
+        if (file_exists($savePath)) {
+            return $savePath;
+        }
+
+        try {
+            $content = file_get_contents($url);
+            if ($content !== false) {
+                file_put_contents($savePath, $content);
+                return $savePath;
+            }
+        } catch (\Exception $e) {
+            error_log('下载二维码失败: ' . $e->getMessage());
+        }
+
+        return null;
+    }
+
+    /**
+     * 清理临时文件
+     */
+    private function cleanupTempFiles(): void
+    {
+        // 清理图片
+        $imageDir = runtime_path('pdf/images/');
+        if (is_dir($imageDir)) {
+            array_map('unlink', glob($imageDir . '*.jpg') ?: []);
+            array_map('unlink', glob($imageDir . '*.png') ?: []);
+        }
+
+        // 清理附件
+        $attachmentDir = runtime_path('pdf/attachment/');
+        if (is_dir($attachmentDir)) {
+            array_map('unlink', glob($attachmentDir . '*.pdf') ?: []);
+        }
+
+        // 清理二维码
+        $qrcodeDir = runtime_path('pdf/qrcode/');
+        if (is_dir($qrcodeDir)) {
+            array_map('unlink', glob($qrcodeDir . '*.jpg') ?: []);
+            array_map('unlink', glob($qrcodeDir . '*.png') ?: []);
+        }
+    }
+
+    /**
+     * 获取字段翻译
+     */
+    private function getFieldTranslations(string $lang): array
+    {
+        $translations = [
+            'zh' => [
+                'price' => '车价',
+                'source_place' => '车源地',
+                'plate_time' => '上牌时间',
+                'displacement' => '排量',
+                'mileage' => '里程',
+                'power' => '马力',
+                'body_color' => '车身颜色',
+                'created_at' => '创建时间',
+                'condition_desc' => '车况介绍',
+                'images' => '产品图',
+                'trade' => '贸易条款',
+            ],
+            'en' => [
+                'price' => 'Price',
+                'source_place' => 'Vehicle Location',
+                'plate_time' => 'Registration Date',
+                'displacement' => 'Engine Displacement',
+                'mileage' => 'Mileage',
+                'power' => 'Horsepower',
+                'body_color' => 'Body Color',
+                'created_at' => 'Created At',
+                'condition_desc' => 'Vehicle Condition',
+                'images' => 'Product Image',
+                'trade' => 'Trade Terms',
+            ],
+            'ru' => [
+                'price' => 'Цена',
+                'source_place' => 'Местонахождение автомобиля',
+                'plate_time' => 'Дата регистрации',
+                'displacement' => 'Объём двигателя',
+                'mileage' => 'Пробег',
+                'power' => 'Мощность',
+                'body_color' => 'Цвет кузова',
+                'created_at' => 'Дата создания',
+                'condition_desc' => 'Состояние автомобиля',
+                'images' => 'Фотографии',
+                'trade' => 'Условия торговли',
+            ],
+            'es' => [
+                'price' => 'Precio',
+                'source_place' => 'Ubicación del vehículo',
+                'plate_time' => 'Fecha de matriculación',
+                'displacement' => 'Cilindrada',
+                'mileage' => 'Kilometraje',
+                'power' => 'Potencia',
+                'body_color' => 'Color de la carrocería',
+                'created_at' => 'Fecha de creación',
+                'condition_desc' => 'Estado del vehículo',
+                'images' => 'Imagen del producto',
+                'trade' => 'Condiciones de comercio',
+            ],
+            'fr' => [
+                'price' => 'Prix',
+                'source_place' => 'Emplacement du véhicule',
+                'plate_time' => 'Date d\'immatriculation',
+                'displacement' => 'Cylindrée',
+                'mileage' => 'Kilométrage',
+                'power' => 'Puissance',
+                'body_color' => 'Couleur de la carrosserie',
+                'created_at' => 'Date de création',
+                'condition_desc' => 'État du véhicule',
+                'images' => 'Image du produit',
+                'trade' => 'Conditions commerciales',
+            ],
+        ];
+
+        return $translations[$lang] ?? $translations['zh'];
+    }
+
+    /**
+     * 获取名片翻译
+     */
+    private function getContactTranslations(string $lang): array
+    {
+        $translations = [
+            'zh' => [
+                'title' => '联系人名片',
+                'name' => '姓名',
+                'email' => '邮箱',
+                'phone' => '电话',
+                'code' => '二维码',
+                'left' => '扫码即可联系本人',
+                'right' => '本资料随PDF自动生成',
+            ],
+            'en' => [
+                'title' => 'Contact Name Card',
+                'name' => 'Name',
+                'email' => 'Email',
+                'phone' => 'Phone',
+                'code' => 'QR Code',
+                'left' => 'Scan the code to contact me',
+                'right' => 'This information is automatically generated with the PDF',
+            ],
+            'ru' => [
+                'title' => 'Контактная карточка',
+                'name' => 'Имя',
+                'email' => 'Электронная почта',
+                'phone' => 'Телефон',
+                'code' => 'QR-код',
+                'left' => 'Код позволяет связаться с самим собой.',
+                'right' => 'Эта информация автоматически генерируется с помощью PDF',
+            ],
+            'es' => [
+                'title' => 'Tarjeta de visita de contacto',
+                'name' => 'Nombre',
+                'email' => 'Correo electrónico',
+                'phone' => 'Teléfono',
+                'code' => 'Código QR',
+                'left' => 'Escanee el código para contactarme.',
+                'right' => 'Esta información se genera automáticamente con PDF',
+            ],
+            'fr' => [
+                'title' => 'Carte de visite de contact',
+                'name' => 'Nom',
+                'email' => 'E-mail',
+                'phone' => 'Téléphone',
+                'code' => 'Code QR',
+                'left' => 'Scannez le code pour me contacter',
+                'right' => 'Ces informations sont générées automatiquement avec le PDF',
+            ],
+        ];
+
+        return $translations[$lang] ?? $translations['zh'];
+    }
+
+    /**
+     * 获取PDF文件路径
+     */
+    public function getPdfPath(string $pdfFileName): string
+    {
+        return runtime_path('pdf/' . $pdfFileName);
+    }
+
+    /**
+     * 检查PDF文件是否存在
+     */
+    public function pdfExists(string $pdfFileName): bool
+    {
+        return file_exists($this->getPdfPath($pdfFileName));
+    }
+}

backend/app/service/UploadService.php

@@ -0,0 +1,329 @@
+<?php
+
+namespace app\Service;
+
+use app\Model\UploadedFiles;
+use Webman\Http\Request;
+
+/**
+ * 文件上传服务
+ * 使用阿里云 OSS 存储文件
+ */
+class UploadService
+{
+    /**
+     * 上传分区类型
+     */
+    public const PARTITION_IMAGE = 'image';
+    public const PARTITION_AVATAR = 'avatar';
+    public const PARTITION_DOCUMENT = 'document';
+    public const PARTITION_USEDCAR = 'usedcar';
+    public const PARTITION_OTHER = 'other';
+
+    private OssService $ossService;
+    private string $tmpPath;
+
+    public function __construct()
+    {
+        $this->ossService = new OssService();
+        $this->tmpPath = sys_get_temp_dir();
+    }
+
+    /**
+     * 上传文件到 OSS
+     *
+     * @param Request $request 请求对象
+     * @param string $partition 上传分区 (image/avatar/document/usedcar/other)
+     * @param string $category 文件分类 (可选)
+     * @param int|null $userId 用户ID (可选)
+     * @return array 上传结果
+     * @throws \Exception
+     */
+    public function upload(Request $request, string $partition = self::PARTITION_OTHER, string $category = 'general', ?int $userId = null): array
+    {
+        $file = $request->file('file');
+
+        if (!$file || !$file->isValid()) {
+            throw new \Exception('文件上传失败或无效');
+        }
+
+        // 获取分区配置
+        $config = UploadedFiles::getPartitionConfig($partition);
+
+        // 获取文件信息（必须在移动文件前获取）
+        $fileSize = $file->getSize();
+        $originalName = $file->getUploadName();
+        $mimeType = $file->getUploadMimeType();
+        $extension = strtolower($file->getUploadExtension());
+
+        // 验证文件大小
+        if ($fileSize > $config['max_size']) {
+            $maxSizeMB = round($config['max_size'] / 1024 / 1024, 2);
+            throw new \Exception("文件大小超过限制，最大允许 {$maxSizeMB}MB");
+        }
+
+        // 验证文件类型
+        if (!empty($config['allowed_types']) && !in_array($mimeType, $config['allowed_types'])) {
+            throw new \Exception('不支持的文件类型: ' . $mimeType);
+        }
+
+        // 验证文件扩展名
+        if (!empty($config['extensions']) && !in_array($extension, $config['extensions'])) {
+            throw new \Exception('不支持的文件扩展名: .' . $extension);
+        }
+
+        // 移动到临时文件
+        $tmpFileName = 'upload_' . uniqid() . '_' . bin2hex(random_bytes(8)) . '.' . $extension;
+        $tmpFilePath = $this->tmpPath . '/' . $tmpFileName;
+
+        if (!$file->move($tmpFilePath)) {
+            throw new \Exception('文件保存到临时目录失败');
+        }
+
+        try {
+            // 图片处理（压缩）
+            if (str_starts_with($mimeType, 'image/')) {
+                $processedPath = $this->processImage($tmpFilePath);
+                if ($processedPath !== $tmpFilePath && file_exists($processedPath)) {
+                    @unlink($tmpFilePath);
+                    $tmpFilePath = $processedPath;
+                    // 更新扩展名（如果转为 webp）
+                    $extension = strtolower(pathinfo($tmpFilePath, PATHINFO_EXTENSION));
+                }
+            }
+
+            // 生成 OSS 对象键
+            $datePath = date('Ymd');
+            $fileName = $this->generateFileName($extension);
+            $objectKey = $this->ossService->getObjectKey("{$config['path']}/{$datePath}/{$fileName}");
+
+            // 上传到 OSS
+            $ossUrl = $this->ossService->uploadFile($tmpFilePath, $objectKey);
+
+            // 保存相对路径用于记录
+            $relativePath = str_replace($this->ossService->getMainDir() . '/', '', $objectKey);
+            $fileUrl = '/' . $relativePath;
+
+            // 记录到数据库
+            $uploadIp = $request->getRealIp() ?? '0.0.0.0';
+            $userAgent = $request->header('User-Agent', '');
+
+            $uploadedFile = UploadedFiles::create([
+                'file_name' => $fileName,
+                'file_path' => $fileUrl,
+                'file_size' => $fileSize,
+                'file_type' => $mimeType,
+                'category' => $category,
+                'original_name' => $originalName,
+                'extension' => $extension,
+                'partition' => $partition,
+                'upload_ip' => $uploadIp,
+                'user_agent' => $userAgent,
+                'user_id' => $userId,
+            ]);
+
+            return [
+                'id' => $uploadedFile->id,
+                'file_name' => $fileName,
+                'file_url' => $fileUrl,
+                'full_url' => $ossUrl,
+                'oss_url' => $ossUrl,
+                'file_size' => $fileSize,
+                'file_type' => $mimeType,
+                'original_name' => $originalName,
+                'partition' => $partition,
+                'category' => $category,
+            ];
+        } finally {
+            // 清理临时文件
+            if (file_exists($tmpFilePath)) {
+                @unlink($tmpFilePath);
+            }
+        }
+    }
+
+    /**
+     * 上传图片（专用接口）
+     *
+     * @param Request $request 请求对象
+     * @param string $category 文件分类
+     * @param int|null $userId 用户ID
+     * @return array
+     * @throws \Exception
+     */
+    public function uploadImage(Request $request, string $category = 'general', ?int $userId = null): array
+    {
+        return $this->upload($request, self::PARTITION_IMAGE, $category, $userId);
+    }
+
+    /**
+     * 上传二手车图片（专用接口）
+     *
+     * @param Request $request 请求对象
+     * @param int|null $userId 用户ID
+     * @return array
+     * @throws \Exception
+     */
+    public function uploadUsedCarImage(Request $request, ?int $userId = null): array
+    {
+        return $this->upload($request, self::PARTITION_USEDCAR, 'usedcar', $userId);
+    }
+
+    /**
+     * 删除文件（OSS + 数据库）
+     *
+     * @param int $fileId 文件ID
+     * @param int|null $userId 用户ID（用于权限验证）
+     * @return bool
+     * @throws \Exception
+     */
+    public function deleteFile(int $fileId, ?int $userId = null): bool
+    {
+        $file = UploadedFiles::find($fileId);
+
+        if (!$file) {
+            throw new \Exception('文件不存在');
+        }
+
+        // 权限验证：只能删除自己的文件（管理员除外）
+        if ($userId !== null && $file->user_id != $userId) {
+            throw new \Exception('无权删除此文件');
+        }
+
+        // 从 file_path 构建完整的 OSS 对象键
+        // file_path 格式: /images/20250305/file.jpg
+        // 需要转换为: x_server_mobile/images/20250305/file.jpg
+        $relativePath = ltrim($file->file_path, '/');
+        $objectKey = $this->ossService->getObjectKey($relativePath);
+
+        try {
+            // 删除 OSS 文件
+            $this->ossService->deleteFile($objectKey);
+        } catch (\Exception $e) {
+            // OSS 删除失败，记录日志但继续删除数据库记录
+            error_log('删除 OSS 文件失败: ' . $e->getMessage());
+        }
+
+        // 删除数据库记录
+        return $file->delete();
+    }
+
+    /**
+     * 获取文件信息
+     *
+     * @param int $fileId 文件ID
+     * @return array
+     * @throws \Exception
+     */
+    public function getFileInfo(int $fileId): array
+    {
+        $file = UploadedFiles::find($fileId);
+
+        if (!$file) {
+            throw new \Exception('文件不存在');
+        }
+
+        // 生成完整的 OSS URL
+        $relativePath = ltrim($file->file_path, '/');
+        $objectKey = $this->ossService->getObjectKey($relativePath);
+        $ossUrl = $this->ossService->getPublicUrl($objectKey);
+
+        return [
+            'id' => $file->id,
+            'file_name' => $file->file_name,
+            'file_path' => $file->file_path,
+            'full_url' => $ossUrl,
+            'oss_url' => $ossUrl,
+            'file_size' => $file->file_size,
+            'file_type' => $file->file_type,
+            'original_name' => $file->original_name,
+            'partition' => $file->partition,
+            'category' => $file->category,
+            'created_at' => $file->created_at->format('Y-m-d H:i:s'),
+        ];
+    }
+
+    /**
+     * 生成唯一文件名
+     */
+    private function generateFileName(string $extension): string
+    {
+        $timestamp = time();
+        $random = bin2hex(random_bytes(4));
+        return $timestamp . '_' . $random . '.' . $extension;
+    }
+
+    /**
+     * 处理图片（压缩）
+     * 返回处理后的文件路径
+     */
+    private function processImage(string $filePath): string
+    {
+        // 检查是否支持 imagick 扩展
+        if (!extension_loaded('imagick')) {
+            return $filePath;
+        }
+
+        try {
+            $image = new \Imagick($filePath);
+
+            // 限制最大尺寸
+            $maxWidth = 2000;
+            $maxHeight = 2000;
+            $image->thumbnailImage($maxWidth, $maxHeight, true);
+
+            // 自动方向修正
+            if (method_exists($image, 'autoOrient')) {
+                $image->autoOrient();
+            }
+
+            // 转换为 WebP 并压缩
+            $image->setImageFormat('webp');
+            $image->setImageCompressionQuality(80);
+
+            $webpPath = preg_replace('/\.(jpe?g|png)$/i', '.webp', $filePath);
+            $image->writeImage($webpPath);
+
+            $image->clear();
+            $image->destroy();
+
+            // 如果转换成功且文件名改变，返回新路径
+            if ($webpPath !== $filePath && file_exists($webpPath)) {
+                return $webpPath;
+            }
+        } catch (\Exception $e) {
+            // 处理失败，保留原图
+            error_log('图片处理失败: ' . $e->getMessage());
+        }
+
+        return $filePath;
+    }
+
+    /**
+     * 格式化文件大小
+     */
+    public static function formatFileSize(int $bytes): string
+    {
+        $units = ['B', 'KB', 'MB', 'GB'];
+        $bytes = max($bytes, 0);
+        $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
+        $pow = min($pow, count($units) - 1);
+
+        $bytes /= pow(1024, $pow);
+
+        return round($bytes, 2) . ' ' . $units[$pow];
+    }
+
+    /**
+     * 获取所有分区配置
+     */
+    public static function getPartitionConfigs(): array
+    {
+        $configs = UploadedFiles::getAllPartitions();
+        foreach ($configs as &$config) {
+            $config['max_size_formatted'] = self::formatFileSize($config['max_size']);
+            $config['allowed_types_formatted'] = implode(', ', $config['extensions']);
+        }
+        return $configs;
+    }
+}

backend/app/service/UsedCarCrawlService.php

@@ -0,0 +1,682 @@
+<?php
+
+namespace app\Service;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
+use QL\QueryList;
+use support\Redis;
+
+/**
+ * 二手车数据抓取服务
+ * 支持从懂车帝、汽车之家等网站抓取车辆信息
+ */
+class UsedCarCrawlService
+{
+    private Client $httpClient;
+
+    // 默认请求头
+    private const DEFAULT_HEADERS = [
+        'User-Agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
+        'Accept-Language' => 'zh-CN,zh;q=0.9',
+        'Referer' => 'https://www.dongchedi.com/',
+    ];
+
+    public function __construct()
+    {
+        $this->httpClient = new Client([
+            'verify' => false,
+            'timeout' => 15,
+        ]);
+    }
+
+    /**
+     * 选择抓取方式并执行
+     *
+     * @param string $url 车辆详情页URL
+     * @return array 抓取结果
+     * @throws \Exception
+     */
+    public function crawlByUrl(string $url): array
+    {
+        // 根据URL判断来源并选择抓取方法
+        if (str_contains($url, 'dongchedi.com')) {
+            // 懂车帝PC端
+            return $this->crawlDongchedi($url);
+        } elseif (str_contains($url, 'dcdapp.com')) {
+            // 懂车帝移动端 - 需要先转换为PC端
+            $pcUrl = $this->getDongchediPcUrl($url);
+            if (!$pcUrl) {
+                throw new \Exception('无法获取懂车帝PC端链接');
+            }
+            return $this->crawlDongchedi($pcUrl);
+        } elseif (str_contains($url, 't.zijieimg.com')) {
+            // 懂车帝分享短链
+            $finalUrl = $this->getFinalUrl($url);
+            $pcUrl = $this->getDongchediPcUrl($finalUrl);
+            if (!$pcUrl) {
+                throw new \Exception('无法获取懂车帝PC端链接');
+            }
+            return $this->crawlDongchedi($pcUrl);
+        } elseif (str_contains($url, 'che168.com')) {
+            // 汽车之家
+            return $this->crawlChe168($url);
+        }
+
+        throw new \Exception('暂不支持此网站的数据抓取');
+    }
+
+    /**
+     * 获取短链的最终URL
+     */
+    private function getFinalUrl(string $url): string
+    {
+        try {
+            $response = $this->httpClient->get($url, [
+                'allow_redirects' => ['track_redirects' => true],
+            ]);
+
+            $history = $response->getHeader('X-Guzzle-Redirect-History');
+            return end($history) ?: $url;
+        } catch (\Exception $e) {
+            throw new \Exception('获取短链失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 从懂车帝移动端URL获取PC端URL
+     */
+    private function getDongchediPcUrl(string $url): ?string
+    {
+        $query = parse_url($url, PHP_URL_QUERY);
+        if (!$query) {
+            return null;
+        }
+
+        parse_str($query, $params);
+        $skuId = $params['sku_id'] ?? null;
+
+        return $skuId ? 'https://www.dongchedi.com/usedcar/' . $skuId : null;
+    }
+
+    /**
+     * 抓取懂车帝二手车信息
+     */
+    private function crawlDongchedi(string $url): array
+    {
+        try {
+            $html = $this->fetchHtml($url);
+
+            if (str_contains($html, '404 Not Found')) {
+                throw new \Exception('车辆已下架或找不到页面');
+            }
+
+            return $this->parseDongchediHtml($html, $url);
+        } catch (\Exception $e) {
+            throw new \Exception('抓取懂车帝数据失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 抓取汽车之家二手车信息
+     */
+    private function crawlChe168(string $url): array
+    {
+        try {
+            // 处理不同格式的汽车之家URL
+            if (str_contains($url, 'home?infoid=')) {
+                // PC端链接转换
+                $queryString = parse_url($url, PHP_URL_QUERY);
+                parse_str($queryString, $params);
+                $carId = $params['infoid'] ?? null;
+                $url = 'https://www.che168.com/dealer/111/' . $carId . '.html?pvareaid=0';
+            } elseif (str_contains($url, 'wap.che168.com/dealer')) {
+                // 移动端链接转换
+                $url = $this->getChe168PcUrl($url);
+            }
+
+            $html = $this->fetchHtml($url);
+            return $this->parseChe168Html($html, $url);
+        } catch (\Exception $e) {
+            throw new \Exception('抓取汽车之家数据失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 从汽车之家移动端URL获取PC端URL
+     */
+    private function getChe168PcUrl(string $url): string
+    {
+        $path = parse_url($url, PHP_URL_PATH);
+        $parts = explode('/', $path);
+        $filename = end($parts);
+        $carId = pathinfo($filename, PATHINFO_FILENAME);
+
+        return 'https://www.che168.com/dealer/111/' . $carId . '.html?pvareaid=0';
+    }
+
+    /**
+     * 获取网页HTML内容
+     */
+    private function fetchHtml(string $url): string
+    {
+        try {
+            $response = $this->httpClient->get($url, [
+                'headers' => self::DEFAULT_HEADERS,
+            ]);
+            return (string)$response->getBody();
+        } catch (GuzzleException $e) {
+            throw new \Exception('获取页面失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 解析懂车帝HTML
+     */
+    private function parseDongchediHtml(string $html, string $url): array
+    {
+        try {
+            $ql = QueryList::html($html);
+
+            // 提取JSON数据
+            $jsonText = $ql->find('#__NEXT_DATA__')->text();
+            if (empty($jsonText)) {
+                throw new \Exception('无法找到页面数据');
+            }
+
+            $jsonData = json_decode($jsonText, true);
+            if (!$jsonData) {
+                throw new \Exception('解析JSON数据失败');
+            }
+
+            $skuDetail = $jsonData['props']['pageProps']['skuDetail'] ?? [];
+            $carInfo = $skuDetail['car_info'] ?? [];
+
+            // 提取价格（懂车帝使用特殊字符编码）
+            $priceText = $ql->find('.head-info_price-wrap__Y4bxi > p')->text();
+            $price = $this->decodeDongchediPrice($priceText);
+
+            // 提取车辆信息
+            $title = $carInfo['car_name'] ?? '';
+            $brandName = $carInfo['brand_name'] ?? '';
+            $seriesName = $carInfo['series_name'] ?? '';
+            $year = $carInfo['year'] ?? '';
+            $bodyColor = $carInfo['body_color'] ?? '';
+
+            // 提取配置信息
+            $overview = $skuDetail['car_config_overview'] ?? [];
+            $power = $overview['power']['horsepower'] ?? '';
+            $displacement = $overview['power']['capacity'] ?? '';
+
+            // 提取上牌时间和车源地
+            $otherParams = $skuDetail['other_params'] ?? [];
+            $plateTime = $this->getParamValue($otherParams, '上牌时间');
+            $sourcePlace = $this->getParamValue($otherParams, '车源地');
+
+            // 提取里程
+            $importantText = $skuDetail['important_text'] ?? '';
+            $mileage = 0;
+            if (preg_match('/(\d+\.?\d*)\s*万公里/', $importantText, $matches)) {
+                $mileage = (int)($matches[1] * 10000);
+            }
+
+            // 提取图片
+            $images = $skuDetail['head_images'] ?? [];
+
+            // 提取车况介绍
+            $conditionDesc = '';
+            if (preg_match('/车况介绍\s*(.*?)\s*推荐理由/s', $html, $matches)) {
+                $conditionDesc = trim($matches[1]);
+            }
+
+            // 提取车辆ID
+            $carId = $carInfo['car_id'] ?? 0;
+            $brandId = $carInfo['brand_id'] ?? 0;
+            $seriesId = $carInfo['series_id'] ?? 0;
+            $usedCarId = $this->extractIdFromUrl($url);
+
+            return [
+                'title' => $title,
+                'price' => $price,
+                'brand_name' => $brandName,
+                'brand_id' => $brandId,
+                'series_name' => $seriesName,
+                'series_id' => $seriesId,
+                'year' => $year,
+                'car_id' => $carId,
+                'used_car_id' => $usedCarId,
+                'power' => $power,
+                'displacement' => $displacement,
+                'plate_time' => $plateTime,
+                'source_place' => $sourcePlace,
+                'body_color' => $bodyColor,
+                'mileage' => $mileage,
+                'images' => $images,
+                'condition_desc' => $conditionDesc,
+                'source_url' => $url,
+            ];
+        } catch (\Exception $e) {
+            throw new \Exception('解析懂车帝页面失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 解析汽车之家HTML
+     */
+    private function parseChe168Html(string $html, string $url): array
+    {
+        try {
+            // 汽车之家使用 GB2312 编码，需要转换
+            $html = $this->convertToUtf8($html);
+
+            $ql = QueryList::html($html);
+
+            // 提取车辆名称
+            $productName = $ql->find('div.car-box .car-brand-name')->text();
+
+            // 提取价格
+            $price = $ql->find('div.goodstartmoney')->text();
+            if (empty($price)) {
+                $price = $ql->find('span#overlayPrice')->text();
+            }
+            $price = str_replace(['¥', '￥', '万'], '', $price);
+            $price = is_numeric($price) ? (int)($price * 10000) : 0;
+
+            // 提取基本信息
+            $basicInfo = [];
+            $ql->find('div#nav1 ul.basic-item-ul li')->each(function($li) use (&$basicInfo) {
+                $field = trim($li->find('.item-name')->text());
+                $value = trim(str_replace($field, '', $li->text()));
+
+                $fieldMap = [
+                    '上牌时间' => 'plate_time',
+                    '表显里程' => 'mileage_text',
+                    '排       量' => 'displacement',
+                    '所  在  地' => 'source_place',
+                    '车身颜色' => 'body_color',
+                    '车况介绍' => 'condition_desc',
+                ];
+
+                if (isset($fieldMap[$field])) {
+                    $basicInfo[$fieldMap[$field]] = $value;
+                }
+            });
+
+            // 处理里程
+            $mileage = 0;
+            if (isset($basicInfo['mileage_text'])) {
+                $mileage = (int)str_replace('万公里', '', $basicInfo['mileage_text']) * 10000;
+            }
+
+            // 提取面包屑导航获取品牌和车系
+            $breadcrumbs = [];
+            $ql->find('.bread-crumbs a')->each(function($a) use (&$breadcrumbs) {
+                $breadcrumbs[] = trim($a->text());
+            });
+
+            $brandName = $breadcrumbs[3] ?? '';
+            $seriesName = $breadcrumbs[4] ?? '';
+            $brandName = str_replace('二手', '', $brandName);
+            $seriesName = str_replace('二手', '', $seriesName);
+
+            // 提取年份
+            $year = '';
+            if (preg_match('/(\d{4})款/', $productName, $matches)) {
+                $year = $matches[1];
+            }
+
+            // 提取图片
+            $images = [];
+            $ql->find('.swiper-container2 .swiper-slide .jiaodianphotoclick img')->each(function($img) use (&$images) {
+                $src = $img->attr('src');
+                if ($src && !str_contains($src, 'default-che168')) {
+                    $images[] = $src;
+                }
+            });
+
+            // 提取车辆ID
+            $usedCarId = $this->extractIdFromUrl($url);
+
+            return [
+                'title' => $productName,
+                'product_name' => $productName,
+                'price' => $price,
+                'brand_name' => $brandName,
+                'brand_id' => 0,
+                'series_name' => $seriesName,
+                'series_id' => 0,
+                'year' => $year,
+                'car_id' => 0,
+                'used_car_id' => $usedCarId,
+                'plate_time' => $basicInfo['plate_time'] ?? '',
+                'displacement' => $basicInfo['displacement'] ?? '',
+                'source_place' => $basicInfo['source_place'] ?? '',
+                'body_color' => $basicInfo['body_color'] ?? '',
+                'mileage' => $mileage,
+                'images' => $images,
+                'condition_desc' => $basicInfo['condition_desc'] ?? '',
+                'source_url' => $url,
+            ];
+        } catch (\Exception $e) {
+            throw new \Exception('解析汽车之家页面失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 解码懂车帝价格（特殊字符编码）
+     */
+    private function decodeDongchediPrice(string $str): float
+    {
+        $map = [
+            "\u{E53D}" => '1',
+            "\u{E3F0}" => '2',
+            "\u{E422}" => '3',
+            "\u{E42C}" => '4',
+            "\u{E49C}" => '5',
+            "\u{E42B}" => '6',
+            "\u{E4FE}" => '7',
+            "\u{E548}" => '8',
+            "\u{E4C8}" => '9',
+            "\u{E453}" => '0',
+            "\u{E45F}" => '.',
+        ];
+
+        $priceStr = strtr($str, $map);
+        $priceStr = str_replace('万', '', $priceStr);
+
+        return (float)trim($priceStr);
+    }
+
+    /**
+     * 从URL中提取ID
+     */
+    private function extractIdFromUrl(string $url): int
+    {
+        if (preg_match('/(\d+)\.html?$/', $url, $matches)) {
+            return (int)$matches[1];
+        }
+        if (preg_match('/\/usedcar\/(\d+)/', $url, $matches)) {
+            return (int)$matches[1];
+        }
+        return 0;
+    }
+
+    /**
+     * 从参数列表中获取指定名称的值
+     */
+    private function getParamValue(array $params, string $name): ?string
+    {
+        foreach ($params as $item) {
+            if (($item['name'] ?? null) === $name) {
+                return $item['value'] ?? null;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * 将GB2312编码转换为UTF-8
+     */
+    private function convertToUtf8(string $html): string
+    {
+        if (!function_exists('mb_convert_encoding')) {
+            return $html;
+        }
+
+        $isGb = stripos($html, 'charset=gb2312') !== false || stripos($html, 'charset=gbk') !== false;
+        if (!$isGb) {
+            return $html;
+        }
+
+        $out = @mb_convert_encoding($html, 'UTF-8', 'GB2312');
+        if ($out === false || $out === '') {
+            $out = @mb_convert_encoding($html, 'UTF-8', 'GBK');
+        }
+
+        if ($out !== false && $out !== '') {
+            $html = preg_replace('/charset\s*=\s*["\']?gb(2312|k)["\']?/i', 'charset="utf-8"', $html);
+            return $out;
+        }
+
+        return $html;
+    }
+
+    /**
+     * 下载图片到本地
+     *
+     * @param string $url 图片URL
+     * @param string $saveDir 保存目录
+     * @return string|null 保存的文件路径，失败返回null
+     */
+    public function downloadImage(string $url, string $saveDir): ?string
+    {
+        try {
+            if (!is_dir($saveDir)) {
+                mkdir($saveDir, 0755, true);
+            }
+
+            $filename = md5($url) . '.jpg';
+            $savePath = rtrim($saveDir, '/') . '/' . $filename;
+
+            // 如果文件已存在，直接返回
+            if (file_exists($savePath)) {
+                return $savePath;
+            }
+
+            // 使用 curl 下载图片
+            $ch = curl_init($url);
+            curl_setopt_array($ch, [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_FOLLOWLOCATION => true,
+                CURLOPT_CONNECTTIMEOUT => 5,
+                CURLOPT_TIMEOUT => 15,
+                CURLOPT_SSL_VERIFYPEER => false,
+                CURLOPT_SSL_VERIFYHOST => false,
+                CURLOPT_HTTPHEADER => [
+                    'User-Agent: ' . self::DEFAULT_HEADERS['User-Agent'],
+                    'Referer: ' . self::DEFAULT_HEADERS['Referer'],
+                ],
+            ]);
+
+            $data = curl_exec($ch);
+            $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+            curl_close($ch);
+
+            if ($httpCode !== 200 || $data === false) {
+                return null;
+            }
+
+            file_put_contents($savePath, $data);
+            return $savePath;
+        } catch (\Exception $e) {
+            error_log('下载图片失败: ' . $e->getMessage());
+            return null;
+        }
+    }
+
+    /**
+     * 批量下载图片
+     *
+     * @param array $urls 图片URL数组
+     * @param string $saveDir 保存目录
+     * @return array [url => localPath]
+     */
+    public function downloadImages(array $urls, string $saveDir): array
+    {
+        $result = [];
+        foreach ($urls as $url) {
+            $url = trim($url);
+            if (empty($url)) {
+                continue;
+            }
+
+            // 处理协议相对URL
+            if (str_starts_with($url, '//')) {
+                $url = 'https:' . $url;
+            }
+
+            $localPath = $this->downloadImage($url, $saveDir);
+            $result[$url] = $localPath;
+        }
+
+        return $result;
+    }
+
+    /**
+     * 通过关键词搜索懂车帝车系信息
+     *
+     * @param string $keyword 搜索关键词（如 "奥迪A4"）
+     * @return array 品牌和车系信息
+     * @throws \Exception
+     */
+    public function searchByKeyword(string $keyword): array
+    {
+        // 访问懂车帝搜索页面获取第一个结果的链接
+        $searchUrl = "https://www.dongchedi.com/search?keyword=" . urlencode($keyword);
+
+        try {
+            $html = $this->fetchHtml($searchUrl);
+            $ql = QueryList::html($html);
+
+            // 查找"查看全部"按钮的链接
+            $href = '';
+            $ql->find('a.fold-btn')->each(function ($item) use (&$href) {
+                $itemHref = $item->attr('href');
+                if ($itemHref) {
+                    $href = $itemHref;
+                }
+            });
+
+            if (empty($href)) {
+                throw new \Exception('未找到相关车系，请使用更精确的关键词');
+            }
+
+            // 提取车系ID
+            $seriesId = $this->extractSeriesId($href);
+            if (!$seriesId) {
+                throw new \Exception('无法解析车系ID');
+            }
+
+            // 获取品牌和车系信息
+            return $this->getBrandSeries($seriesId);
+        } catch (\Exception $e) {
+            throw new \Exception('搜索失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 获取品牌和车系名称
+     *
+     * @param string $seriesId 车系ID
+     * @return array 包含品牌和车系信息的数组
+     * @throws \Exception
+     */
+    public function getBrandSeries(string $seriesId): array
+    {
+        $url = "https://www.dongchedi.com/auto/series/" . $seriesId . "?anchorId=carModels";
+
+        try {
+            $html = $this->fetchHtml($url);
+            $ql = QueryList::html($html);
+
+            // 从面包屑导航中提取品牌和车系
+            $breadcrumbs = [];
+            $ql->find('div.breadcrumb_wrap__2GLeU span')->each(function ($item) use (&$breadcrumbs) {
+                $breadcrumbs[] = trim($item->text());
+            });
+
+            $brand = $breadcrumbs[2] ?? '';
+            $series = $breadcrumbs[3] ?? '';
+
+            // 获取车型列表
+            $models = $this->getSeriesModels($seriesId);
+
+            return [
+                'brand' => $brand,
+                'series' => $series,
+                'series_id' => $seriesId,
+                'models' => $models,
+            ];
+        } catch (\Exception $e) {
+            throw new \Exception('获取车系信息失败: ' . $e->getMessage());
+        }
+    }
+
+    /**
+     * 获取车系下的车型列表
+     *
+     * @param string $seriesId 车系ID
+     * @return array 车型列表
+     */
+    public function getSeriesModels(string $seriesId): array
+    {
+        $url = "https://www.dongchedi.com/auto/series/" . $seriesId . "?anchorId=carModels";
+        $models = [];
+
+        try {
+            $html = $this->fetchHtml($url);
+            $ql = QueryList::html($html);
+
+            // 使用 Tailwind CSS 类名选择器（懂车帝使用 Tailwind）
+            $nodes = $ql->find('div.tw-grid div.tw-relative div.tw-items-center>a');
+            $texts = $nodes->texts()->all();
+            $links = $nodes->attrs('href')->all();
+
+            // 提取价格信息（可选）
+            $priceNodes = $ql->find('div.tw-grid div.tw-text-color-gray-800');
+            $prices = $priceNodes->texts()->all();
+
+            foreach ($texts as $index => $text) {
+                $modelName = trim($text);
+                if (empty($modelName)) {
+                    continue;
+                }
+
+                $link = $links[$index] ?? '';
+                if (!empty($link) && strpos($link, 'http') !== 0) {
+                    $link = 'https://www.dongchedi.com' . $link;
+                }
+
+                $priceStr = $prices[$index] ?? '';
+                $msrp = 0;
+                if (!empty($priceStr)) {
+                    $msrp = (int)(str_replace("万", "", $priceStr) * 10000);
+                }
+
+                $models[] = [
+                    'id' => $index,
+                    'name' => $modelName,
+                    'url' => $link,
+                    'msrp' => $msrp,
+                ];
+            }
+
+            return $models;
+        } catch (\Exception $e) {
+            // 车型解析失败，记录日志并返回空数组
+            error_log('获取车型列表失败: ' . $e->getMessage());
+            return [];
+        }
+    }
+
+    /**
+     * 从懂车帝URL中提取车系ID
+     *
+     * @param string $url 懂车帝URL
+     * @return string|null 车系ID
+     */
+    private function extractSeriesId(string $url): ?string
+    {
+        // 匹配 /auto/series/x123/ 格式
+        if (preg_match('/\/auto\/series\/(\d+)/', $url, $matches)) {
+            return $matches[1];
+        }
+
+        // 匹配 /auto/series/x123/params/ 格式
+        if (preg_match('/\/auto\/series\/(\d+)/', $url, $matches)) {
+            return $matches[1];
+        }
+
+        return null;
+    }
+}

backend/app/service/UsedCarService.php

@@ -0,0 +1,529 @@
+<?php
+
+namespace app\Service;
+
+use app\Model\UsedCar;
+use app\Model\UsedCarPdfLog;
+use app\Model\User;
+use support\Db;
+use support\Redis;
+
+/**
+ * 二手车业务服务
+ */
+class UsedCarService
+{
+    private UsedCarCrawlService $crawlService;
+
+    public function __construct()
+    {
+        $this->crawlService = new UsedCarCrawlService();
+    }
+
+    /**
+     * 获取二手车列表
+     *
+     * @param int $userId 用户ID
+     * @param string $type 列表类型: all-全部, self-我创建的
+     * @param int $page 页码
+     * @param int $pageSize 每页数量
+     * @param string|null $keyword 搜索关键词
+     * @param int|null $status 状态筛选
+     * @return array
+     */
+    public function getList(int $userId, string $type = 'self', int $page = 1, int $pageSize = 20, ?string $keyword = null, ?int $status = null): array
+    {
+        $query = UsedCar::query();
+
+        // 筛选条件
+        switch ($type) {
+            case 'self':
+                $query->where('user_id', $userId);
+                break;
+            case 'all':
+                // 管理员可以查看所有
+                break;
+        }
+
+        // 状态筛选
+        if ($status !== null) {
+            $query->where('status', $status);
+        } else {
+            // 默认不显示已删除的
+            $query->where('status', '!=', UsedCar::STATUS_DELETED);
+        }
+
+        // 关键词搜索
+        if ($keyword) {
+            $query->where(function ($q) use ($keyword) {
+                $q->where('product_name', 'like', "%{$keyword}%")
+                    ->orWhere('code', 'like', "%{$keyword}%");
+            });
+        }
+
+        // 获取总数
+        $total = $query->count();
+
+        // 分页查询
+        $list = $query->orderBy('sort', 'desc')
+            ->orderBy('id', 'desc')
+            ->offset(($page - 1) * $pageSize)
+            ->limit($pageSize)
+            ->get();
+
+        // 格式化数据
+        $formattedList = $list->map(function ($item) {
+            return $this->formatListItem($item);
+        })->toArray();
+
+        return [
+            'list' => $formattedList,
+            'total' => $total,
+            'page' => $page,
+            'page_size' => $pageSize,
+        ];
+    }
+
+    /**
+     * 获取二手车详情
+     *
+     * @param int $id 二手车ID
+     * @param int $userId 当前用户ID
+     * @return array
+     * @throws \Exception
+     */
+    public function getDetail(int $id, int $userId): array
+    {
+        $car = UsedCar::with(['pdfLogs', 'user'])->findOrFail($id);
+
+        // 格式化数据
+        return $this->formatDetailItem($car);
+    }
+
+    /**
+     * 创建二手车记录
+     *
+     * @param array $data
+     * @param int $userId
+     * @return UsedCar
+     * @throws \Exception
+     */
+    public function create(array $data, int $userId): UsedCar
+    {
+        // 验证数据
+        $this->validateCarData($data);
+
+        return Db::connection()->transaction(function () use ($data, $userId) {
+            // 获取用户信息
+            $user = User::findOrFail($userId);
+
+            // 生成唯一编号
+            $code = $this->generateCode($userId, $user->name ?? '');
+
+            // 处理图片
+            $images = $data['images'] ?? [];
+            if (!is_array($images)) {
+                $images = explode(',', $images);
+            }
+            $images = array_filter($images);
+
+            // 处理附件
+            $attachment = $data['attachment'] ?? null;
+            if (is_array($attachment)) {
+                $attachment = json_encode($attachment, JSON_UNESCAPED_UNICODE);
+            }
+
+            // 检查source_url是否已存在
+            if (!empty($data['source_url'])) {
+                $exists = UsedCar::where('source_url', $data['source_url'])
+                    ->where('user_id', $userId)
+                    ->exists();
+                if ($exists) {
+                    throw new \Exception('该车源已收录');
+                }
+            }
+
+            // 创建记录
+            $car = UsedCar::create([
+                'code' => $code,
+                'user_id' => $userId,
+                'role' => $user->role ?? 1,
+                'product_name' => $data['product_name'],
+                'vin' => $data['vin'] ?? null,
+                'price' => $this->parsePrice($data['price'] ?? 0),
+                'source_place' => $data['source_place'] ?? null,
+                'plate_place' => $data['plate_place'] ?? null,
+                'plate_time' => $data['plate_time'] ?? null,
+                'displacement' => $data['displacement'] ?? null,
+                'mileage' => $this->parseMileage($data['mileage'] ?? 0),
+                'power' => $this->parsePower($data['power'] ?? ''),
+                'body_color' => $data['body_color'] ?? null,
+                'images' => implode(',', $images),
+                'condition_desc' => $data['condition_desc'] ?? null,
+                'attachment' => $attachment,
+                'source_url' => $data['source_url'] ?? null,
+                'crawl_title' => $data['crawl_title'] ?? null,
+                'crawl_brand' => $data['crawl_brand'] ?? null,
+                'crawl_brand_id' => $data['crawl_brand_id'] ?? 0,
+                'crawl_series' => $data['crawl_series'] ?? null,
+                'crawl_series_id' => $data['crawl_series_id'] ?? 0,
+                'crawl_year' => $data['crawl_year'] ?? null,
+                'crawl_msrp' => $this->parsePrice($data['crawl_msrp'] ?? 0),
+                'crawl_car_id' => $data['crawl_car_id'] ?? 0,
+                'status' => UsedCar::STATUS_NORMAL,
+                'sort' => $data['sort'] ?? 0,
+            ]);
+
+            return $car;
+        });
+    }
+
+    /**
+     * 更新二手车记录
+     *
+     * @param int $id
+     * @param array $data
+     * @param int $userId
+     * @return UsedCar
+     * @throws \Exception
+     */
+    public function update(int $id, array $data, int $userId): UsedCar
+    {
+        $car = UsedCar::findOrFail($id);
+
+        // 检查权限
+        if ($car->user_id !== $userId) {
+            throw new \Exception('无权编辑此记录');
+        }
+
+        // 验证数据
+        $this->validateCarData($data);
+
+        // 处理图片
+        if (isset($data['images'])) {
+            $images = is_array($data['images']) ? $data['images'] : explode(',', $data['images']);
+            $data['images'] = implode(',', array_filter($images));
+        }
+
+        // 处理附件
+        if (isset($data['attachment']) && is_array($data['attachment'])) {
+            $data['attachment'] = json_encode($data['attachment'], JSON_UNESCAPED_UNICODE);
+        }
+
+        // 处理价格和里程
+        if (isset($data['price'])) {
+            $data['price'] = $this->parsePrice($data['price']);
+        }
+        if (isset($data['mileage'])) {
+            $data['mileage'] = $this->parseMileage($data['mileage']);
+        }
+        if (isset($data['power'])) {
+            $data['power'] = $this->parsePower($data['power']);
+        }
+        if (isset($data['crawl_msrp'])) {
+            $data['crawl_msrp'] = $this->parsePrice($data['crawl_msrp']);
+        }
+
+        // 只更新允许的字段
+        $fillable = [
+            'product_name', 'vin', 'price', 'source_place', 'plate_place',
+            'plate_time', 'displacement', 'mileage', 'power', 'body_color',
+            'images', 'condition_desc', 'attachment',
+        ];
+
+        foreach ($fillable as $field) {
+            if (array_key_exists($field, $data)) {
+                $car->$field = $data[$field];
+            }
+        }
+
+        $car->save();
+        return $car;
+    }
+
+    /**
+     * 删除二手车记录（软删除）
+     *
+     * @param int $id
+     * @param int $userId
+     * @return bool
+     * @throws \Exception
+     */
+    public function delete(int $id, int $userId): bool
+    {
+        $car = UsedCar::findOrFail($id);
+
+        // 检查权限
+        if ($car->user_id !== $userId) {
+            throw new \Exception('无权删除此记录');
+        }
+
+        $car->status = UsedCar::STATUS_DELETED;
+        return $car->save();
+    }
+
+    /**
+     * 更新状态
+     *
+     * @param int $id
+     * @param int $status
+     * @param int $userId
+     * @return bool
+     * @throws \Exception
+     */
+    public function updateStatus(int $id, int $status, int $userId): bool
+    {
+        $car = UsedCar::findOrFail($id);
+
+        // 检查权限
+        if ($car->user_id !== $userId) {
+            throw new \Exception('无权修改此记录');
+        }
+
+        $car->status = $status;
+        return $car->save();
+    }
+
+    /**
+     * URL抓取车辆信息
+     *
+     * @param string $url
+     * @return array
+     * @throws \Exception
+     */
+    public function crawlByUrl(string $url): array
+    {
+        $data = $this->crawlService->crawlByUrl($url);
+
+        // 下载图片到临时目录
+        $tempDir = runtime_path('tmp/usedcar_images/');
+        $images = $data['images'] ?? [];
+
+        return [
+            'product_name' => $data['title'] ?? '',
+            'price' => $this->parsePrice($data['price'] ?? 0),
+            'source_place' => $data['source_place'] ?? '',
+            'plate_time' => $data['plate_time'] ?? '',
+            'displacement' => $data['displacement'] ?? '',
+            'mileage' => $data['mileage'] ?? 0,
+            'power' => $data['power'] ?? '',
+            'body_color' => $data['body_color'] ?? '',
+            'images' => $images,
+            'condition_desc' => $data['condition_desc'] ?? '',
+            'source_url' => $data['source_url'] ?? $url,
+            'crawl_title' => $data['title'] ?? '',
+            'crawl_brand' => $data['brand_name'] ?? '',
+            'crawl_brand_id' => $data['brand_id'] ?? 0,
+            'crawl_series' => $data['series_name'] ?? '',
+            'crawl_series_id' => $data['series_id'] ?? 0,
+            'crawl_year' => $data['year'] ?? '',
+            'crawl_car_id' => $data['car_id'] ?? 0,
+            'used_car_id' => $data['used_car_id'] ?? 0,
+        ];
+    }
+
+    /**
+     * 生成唯一编号
+     *
+     * @param int $userId
+     * @param string $userName
+     * @return string
+     */
+    private function generateCode(int $userId, string $userName): string
+    {
+        // 获取用户名拼音首字母
+        $nameInitials = $this->getNameInitials($userName);
+        $userCode = str_pad($userId, 3, '0', STR_PAD_LEFT);
+
+        // 从Redis获取今日计数
+        $redisKey = 'used_car_count_' . $userId;
+        $todayStart = strtotime('today');
+
+        // 检查数据库中今日已创建的数量
+        $count = UsedCar::where('user_id', $userId)
+            ->where('created_at', '>=', $todayStart)
+            ->count();
+
+        // 从Redis获取缓存计数
+        $cachedCount = Redis::get($redisKey, 0);
+        $count = max($count, $cachedCount) + 1;
+
+        // 更新Redis缓存（24小时过期）
+        Redis::setex($redisKey, 86400, $count);
+
+        $countCode = str_pad($count, 3, '0', STR_PAD_LEFT);
+
+        return $nameInitials . $userCode . date('Ymd') . $countCode;
+    }
+
+    /**
+     * 获取中文名拼音首字母
+     */
+    private function getNameInitials(string $name): string
+    {
+        $initials = '';
+        $len = mb_strlen($name);
+
+        for ($i = 0; $i < $len; $i++) {
+            $char = mb_substr($name, $i, 1);
+            $initials .= $this->getFirstChar($char);
+        }
+
+        return strtoupper($initials);
+    }
+
+    /**
+     * 获取单个汉字的首字母
+     */
+    private function getFirstChar(string $char): string
+    {
+        // 英文字母直接返回
+        if (preg_match('/^[a-zA-Z]$/', $char)) {
+            return strtoupper($char);
+        }
+
+        // 转换为GB2312编码
+        $s = @iconv('UTF-8', 'GB2312//IGNORE', $char);
+        if ($s === false || strlen($s) < 2) {
+            return '';
+        }
+
+        $code = ord($s[0]) * 256 + ord($s[1]) - 65536;
+
+        $map = [
+            [-20319, -20284, 'A'], [-20283, -19776, 'B'], [-19775, -19219, 'C'],
+            [-19218, -18711, 'D'], [-18710, -18527, 'E'], [-18526, -18240, 'F'],
+            [-18239, -17923, 'G'], [-17922, -17418, 'H'], [-17417, -16475, 'J'],
+            [-16474, -16213, 'K'], [-16212, -15641, 'L'], [-15640, -15166, 'M'],
+            [-15165, -14923, 'N'], [-14922, -14915, 'O'], [-14914, -14631, 'P'],
+            [-14630, -14150, 'Q'], [-14149, -14091, 'R'], [-14090, -13319, 'S'],
+            [-13318, -12839, 'T'], [-12838, -12557, 'W'], [-12556, -11848, 'X'],
+            [-11847, -11056, 'Y'], [-11055, -10247, 'Z']
+        ];
+
+        foreach ($map as [$start, $end, $letter]) {
+            if ($code >= $start && $code <= $end) {
+                return $letter;
+            }
+        }
+
+        return '';
+    }
+
+    /**
+     * 解析价格（单位统一转换为分）
+     */
+    private function parsePrice($price): int
+    {
+        $price = floatval(str_replace(['万', ','], '', $price));
+        // 如果小于200，说明是以万为单位
+        if ($price < 200 && $price > 0) {
+            $price = $price * 10000;
+        }
+        return (int)($price * 100); // 转换为分
+    }
+
+    /**
+     * 解析里程（移除单位）
+     */
+    private function parseMileage($mileage): int
+    {
+        $mileage = str_replace(['万', 'K', 'M', 'k', 'm', '公里'], '', $mileage);
+        return (int)floatval($mileage);
+    }
+
+    /**
+     * 解析马力（移除单位）
+     */
+    private function parsePower($power): string
+    {
+        return str_replace(['P', 'S', 'p', 's', '马力', 'Ps', 'PS'], '', $power);
+    }
+
+    /**
+     * 验证车辆数据
+     */
+    private function validateCarData(array $data): void
+    {
+        if (empty($data['product_name'])) {
+            throw new \Exception('产品名称不能为空');
+        }
+    }
+
+    /**
+     * 格式化列表项
+     */
+    private function formatListItem(UsedCar $car): array
+    {
+        $data = $car->toArray();
+
+        // 格式化时间
+        if ($car->created_at) {
+            $data['created_at'] = $car->created_at->toDateTimeString();
+        }
+        if ($car->updated_at) {
+            $data['updated_at'] = $car->updated_at->toDateTimeString();
+        }
+
+        // 处理图片
+        $data['images_array'] = [];
+        if (!empty($car->images)) {
+            $data['images_array'] = explode(',', $car->images);
+        }
+
+        return $data;
+    }
+
+    /**
+     * 格式化详情项
+     */
+    private function formatDetailItem(UsedCar $car): array
+    {
+        $data = $car->toArray();
+
+        // 格式化时间
+        if ($car->created_at) {
+            $data['created_at'] = $car->created_at->toDateTimeString();
+        }
+        if ($car->updated_at) {
+            $data['updated_at'] = $car->updated_at->toDateTimeString();
+        }
+
+        // 处理图片
+        $data['images_array'] = [];
+        if (!empty($car->images)) {
+            $data['images_array'] = explode(',', $car->images);
+        }
+
+        // 处理附件
+        $data['attachment_array'] = [];
+        if (!empty($car->attachment)) {
+            $attachment = json_decode($car->attachment, true);
+            if (is_array($attachment)) {
+                $data['attachment_array'] = $attachment;
+            }
+        }
+
+        // 添加用户信息
+        if ($car->user) {
+            $data['user'] = [
+                'id' => $car->user->id,
+                'name' => $car->user->name,
+            ];
+        }
+
+        // PDF生成日志
+        if ($car->pdfLogs) {
+            $data['pdf_logs'] = $car->pdfLogs->map(function ($log) {
+                return [
+                    'id' => $log->id,
+                    'price_snapshot' => $log->price_snapshot,
+                    'pdf_path' => $log->pdf_path,
+                    'created_at' => $log->created_at ? $log->created_at->toDateTimeString() : null,
+                ];
+            })->toArray();
+        }
+
+        return $data;
+    }
+}

backend/app/util/FeishuUtil.php

@@ -18,6 +18,7 @@ class FeishuUtil
     private const string APP_ACCESS_TOKEN_URL = 'https://open.feishu.cn/open-apis/auth/v3/tenant_access_token/internal';
     private const string USER_ACCESS_TOKEN_URL = 'https://open.feishu.cn/open-apis/authen/v1/oidc/access_token';
     private const string USER_INFO_URL = 'https://open.feishu.cn/open-apis/authen/v1/user_info';
+    private const string JSAPI_TICKET_URL = 'https://open.feishu.cn/open-apis/jssdk/ticket/get';
 
     /**
      * 获取 app_access_token
@@ -200,4 +201,58 @@ class FeishuUtil
         $userAccessToken = self::getUserAccessToken($code, $appId);
         return self::getUserInfo($userAccessToken);
     }
+
+    /**
+     * 获取 jsapi_ticket（用于 JS API 鉴权）
+     *
+     * @param int $appId 飞书应用ID
+     * @return string jsapi_ticket
+     * @throws Exception
+     */
+    public static function getJsapiTicket(int $appId): string
+    {
+        $cacheKey = "feishu:jsapi_ticket:{$appId}";
+
+        // 从缓存获取
+        if (isset(self::$tokenCache[$cacheKey]) && self::$tokenCache[$cacheKey]['expire'] > time()) {
+            return self::$tokenCache[$cacheKey]['ticket'];
+        }
+
+        $appAccessToken = self::getAppAccessToken($appId);
+
+        try {
+            $response = HttpClient::httpGet(
+                self::JSAPI_TICKET_URL,
+                [],
+                [
+                    'Authorization: Bearer ' . $appAccessToken,
+                ]
+            );
+
+            if ($response['code'] !== 0) {
+                $errorMsg = $response['msg'] ?? $response['message'] ?? '未知错误';
+                throw new Exception('获取 jsapi_ticket 失败: ' . $errorMsg);
+            }
+
+            if (!isset($response['data']['ticket'])) {
+                throw new Exception('响应中缺少 ticket: ' . json_encode($response));
+            }
+
+            $ticket = $response['data']['ticket'];
+            $expire = $response['data']['expire_in'] ?? 7200;
+
+            // 缓存 ticket（提前5分钟过期）
+            self::$tokenCache[$cacheKey] = [
+                'ticket' => $ticket,
+                'expire' => time() + $expire - 300,
+            ];
+
+            error_log("✅ 获取 jsapi_ticket 成功: " . substr($ticket, 0, 30) . "...");
+
+            return $ticket;
+        } catch (Exception $e) {
+            error_log("❌ 获取 jsapi_ticket 失败: " . $e->getMessage());
+            throw $e;
+        }
+    }
 }

backend/composer.json

@@ -14,7 +14,12 @@
     "vlucas/phpdotenv": "^5.6",
     "webman/database": "^2.1",
     "symfony/var-dumper": "^8.0",
-    "webman/redis": "^2.1"
+    "webman/redis": "^2.1",
+    "guzzlehttp/guzzle": "^7.8",
+    "jaeger/querylist": "^4.4",
+    "mpdf/mpdf": "^8.2",
+    "workerman/crontab": "^1.0",
+    "aliyuncs/oss-sdk-php": "^2.7"
   },
   "require-dev": {
     "mockery/mockery": "^1.5",

backend/config/process.php

@@ -0,0 +1,12 @@
+<?php
+/**
+ * 自定义进程配置
+ * 用于注册定时任务等自定义进程
+ */
+
+return [
+    // 定时任务进程
+    'task' => [
+        'handler' => app\process\Task::class
+    ],
+];

backend/config/route.php

@@ -13,6 +13,7 @@ Route::group('/api/v1', function () {
     Route::post('/auth/qrcode-login', [app\controller\AuthController::class, 'qrcodeLogin']);
     Route::get('/auth/qrcode-login/status', [app\controller\AuthController::class, 'qrcodeLoginStatus']);
     Route::get('/auth/feishu-config', [app\controller\AuthController::class, 'feishuConfig']);
+    Route::get('/auth/feishu-jsapi-signature', [app\controller\AuthController::class, 'feishuJsapiSignature']);
 
     // 测试接口
     Route::get('/test/notification', [app\controller\TestController::class, 'notification']);
@@ -62,6 +63,34 @@ Route::group('/api/v1/business-trip', function () {
     Route::post('/approve/{id}', [app\controller\BusinessTripController::class, 'approve']);
 })->middleware($authMiddleware);
 
+// 二手车路由（需要认证）
+Route::group('/api/v1/usedcar', function () {
+    Route::get('/list', [app\controller\UsedCarController::class, 'list']);
+    Route::get('/detail', [app\controller\UsedCarController::class, 'detail']);
+    Route::post('/create', [app\controller\UsedCarController::class, 'create']);
+    Route::post('/update', [app\controller\UsedCarController::class, 'update']);
+    Route::post('/delete', [app\controller\UsedCarController::class, 'delete']);
+    Route::post('/status', [app\controller\UsedCarController::class, 'updateStatus']);
+    Route::post('/crawl/url', [app\controller\UsedCarController::class, 'crawlByUrl']);
+    Route::post('/crawl/mobile', [app\controller\UsedCarController::class, 'crawlMobileUrl']);
+    Route::post('/crawl/keyword', [app\controller\UsedCarController::class, 'crawlKeyword']);
+    Route::post('/pdf/generate', [app\controller\UsedCarController::class, 'generatePdf']);
+    Route::get('/pdf/download', [app\controller\UsedCarController::class, 'downloadPdf']);
+    Route::get('/pdf/url', [app\controller\UsedCarController::class, 'getPdfUrl']);
+    Route::get('/pdf/preview', [app\controller\UsedCarController::class, 'previewPdf']);
+})->middleware($authMiddleware);
+
+// 文件上传路由（不需要认证）
+Route::group('/api/v1/upload', function () {
+    Route::post('/file', [app\controller\UploadController::class, 'upload']);
+    Route::post('/image', [app\controller\UploadController::class, 'uploadImage']);
+    Route::post('/usedcar', [app\controller\UploadController::class, 'uploadUsedCarImage']);
+    Route::post('/batch', [app\controller\UploadController::class, 'batchUploadImages']);
+    Route::post('/delete', [app\controller\UploadController::class, 'deleteFile']);
+    Route::get('/info', [app\controller\UploadController::class, 'getFileInfo']);
+    Route::get('/config', [app\controller\UploadController::class, 'getPartitionConfig']);
+})->middleware($apiMiddleware);
+
 // 默认路由
 Route::fallback(function () {
     return json(['code' => 404, 'message' => 'Not Found']);

backend/database/migrations/015_create_used_car_tables.sql

@@ -0,0 +1,56 @@
+-- 二手车相关数据表
+-- 创建时间: 2026-03-05
+
+-- 二手车主表
+CREATE TABLE IF NOT EXISTS `used_car` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `code` varchar(100) NOT NULL DEFAULT '' COMMENT '唯一编号（用户拼音首字母+用户ID+日期+序号）',
+  `user_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '用户ID',
+  `role` tinyint(1) NOT NULL DEFAULT 1 COMMENT '用户角色：1管理员 2普通用户',
+  `product_name` varchar(255) NOT NULL DEFAULT '' COMMENT '产品名称/车辆标题',
+  `vin` varchar(50) DEFAULT NULL COMMENT '车辆识别码',
+  `price` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '价格（单位：分）',
+  `source_place` varchar(100) DEFAULT NULL COMMENT '车源地',
+  `plate_place` varchar(100) DEFAULT NULL COMMENT '上牌地点',
+  `plate_time` varchar(50) DEFAULT NULL COMMENT '上牌时间',
+  `displacement` varchar(50) DEFAULT NULL COMMENT '排量',
+  `mileage` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '里程（单位：公里）',
+  `power` varchar(50) DEFAULT NULL COMMENT '马力',
+  `body_color` varchar(50) DEFAULT NULL COMMENT '车身颜色',
+  `images` text DEFAULT NULL COMMENT '图片（逗号分隔的OSS路径）',
+  `condition_desc` text DEFAULT NULL COMMENT '车况介绍',
+  `attachment` text DEFAULT NULL COMMENT '附件（JSON格式：[{name:, src:}]）',
+  `pdf_src` varchar(255) DEFAULT NULL COMMENT 'PDF文件路径',
+  `source_url` text DEFAULT NULL COMMENT '源URL（抓取来源）',
+  `crawl_title` varchar(255) DEFAULT NULL COMMENT '抓取标题',
+  `crawl_brand` varchar(100) DEFAULT NULL COMMENT '抓取品牌',
+  `crawl_brand_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取品牌ID',
+  `crawl_series` varchar(100) DEFAULT NULL COMMENT '抓取车系',
+  `crawl_series_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取车系ID',
+  `crawl_year` varchar(10) DEFAULT NULL COMMENT '抓取年份',
+  `crawl_msrp` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取指导价（单位：分）',
+  `crawl_car_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取车型ID',
+  `status` tinyint(1) NOT NULL DEFAULT 1 COMMENT '状态：1正常 2归档 3删除',
+  `sort` int(11) NOT NULL DEFAULT 0 COMMENT '排序',
+  `created_at` timestamp NULL DEFAULT NULL,
+  `updated_at` timestamp NULL DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `idx_user_id` (`user_id`),
+  KEY `idx_code` (`code`),
+  KEY `idx_status` (`status`),
+  KEY `idx_created_at` (`created_at`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='二手车信息表';
+
+-- 二手车PDF生成日志表
+CREATE TABLE IF NOT EXISTS `used_car_pdf_log` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `user_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '用户ID',
+  `used_car_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '二手车ID',
+  `price_snapshot` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '价格快照（单位：分）',
+  `pdf_path` varchar(255) NOT NULL DEFAULT '' COMMENT 'PDF路径',
+  `created_at` timestamp NULL DEFAULT NULL,
+  `updated_at` timestamp NULL DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `idx_user_id` (`user_id`),
+  KEY `idx_used_car_id` (`used_car_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='二手车PDF生成日志表';

backend/database/migrations/016_create_uploaded_files_table.sql

@@ -0,0 +1,22 @@
+-- 上传文件记录表
+CREATE TABLE IF NOT EXISTS `uploaded_files` (
+  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
+  `file_name` varchar(255) NOT NULL COMMENT '存储文件名',
+  `file_path` varchar(500) NOT NULL COMMENT '文件存储路径',
+  `file_size` bigint(20) NOT NULL DEFAULT '0' COMMENT '文件大小（字节）',
+  `file_type` varchar(100) NOT NULL COMMENT '文件MIME类型',
+  `category` varchar(50) DEFAULT 'general' COMMENT '文件分类（general/avatar/document等）',
+  `original_name` varchar(255) DEFAULT NULL COMMENT '原始文件名',
+  `extension` varchar(20) DEFAULT NULL COMMENT '文件扩展名',
+  `partition` varchar(50) DEFAULT 'other' COMMENT '上传分区（image/document/audio等）',
+  `upload_ip` varchar(45) DEFAULT NULL COMMENT '上传IP地址',
+  `user_agent` text COMMENT '用户代理',
+  `user_id` int(11) DEFAULT NULL COMMENT '上传用户ID',
+  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+  `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+  PRIMARY KEY (`id`),
+  KEY `idx_partition` (`partition`),
+  KEY `idx_category` (`category`),
+  KEY `idx_user_id` (`user_id`),
+  KEY `idx_file_path` (`file_path`(255))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='上传文件记录表';

backend/database/xserver.sql

@@ -900539,3 +900539,61 @@ INSERT INTO `users_copy1` VALUES (74, '263364', 3, '李永春', 'https://s3-imfi
 INSERT INTO `users_copy1` VALUES (75, '698484', 3, '曲江丽', 'https://s1-imfile.feishucdn.com/static-resource/v1/v3_00uh_6412ff58-77d6-4e5f-b35e-6b1a76ed31eg~?image_size=240x240&cut_type=&quality=&format=image&sticker_format=.webp', NULL, 'qujiangli@paikacar.com', '18339956922', '$2y$10$j9w0jkEYliIPbGbiPK5MSOhqGwwzY1Enf/koZC2MVb4JrXSFUhqDq', 1, 1, 'on_8f01d5bee7af07ce3de5e31df7075c99', 2, 'x_server/user_signature/20260210/6ad00820e9be180db7ac4aa729e4b6e9_698ad1464aae9.png', '2026-02-10 14:25:49', '2026-02-26 16:18:51');
 
 SET FOREIGN_KEY_CHECKS = 1;
+
+-- 二手车相关数据表 (015_create_used_car_tables.sql)
+-- 二手车相关数据表
+-- 创建时间: 2026-03-05
+
+-- 二手车主表
+CREATE TABLE IF NOT EXISTS `used_car` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `code` varchar(100) NOT NULL DEFAULT '' COMMENT '唯一编号（用户拼音首字母+用户ID+日期+序号）',
+  `user_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '用户ID',
+  `role` tinyint(1) NOT NULL DEFAULT 1 COMMENT '用户角色：1管理员 2普通用户',
+  `product_name` varchar(255) NOT NULL DEFAULT '' COMMENT '产品名称/车辆标题',
+  `vin` varchar(50) DEFAULT NULL COMMENT '车辆识别码',
+  `price` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '价格（单位：分）',
+  `source_place` varchar(100) DEFAULT NULL COMMENT '车源地',
+  `plate_place` varchar(100) DEFAULT NULL COMMENT '上牌地点',
+  `plate_time` varchar(50) DEFAULT NULL COMMENT '上牌时间',
+  `displacement` varchar(50) DEFAULT NULL COMMENT '排量',
+  `mileage` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '里程（单位：公里）',
+  `power` varchar(50) DEFAULT NULL COMMENT '马力',
+  `body_color` varchar(50) DEFAULT NULL COMMENT '车身颜色',
+  `images` text DEFAULT NULL COMMENT '图片（逗号分隔的OSS路径）',
+  `condition_desc` text DEFAULT NULL COMMENT '车况介绍',
+  `attachment` text DEFAULT NULL COMMENT '附件（JSON格式：[{name:, src:}]）',
+  `pdf_src` varchar(255) DEFAULT NULL COMMENT 'PDF文件路径',
+  `source_url` text DEFAULT NULL COMMENT '源URL（抓取来源）',
+  `crawl_title` varchar(255) DEFAULT NULL COMMENT '抓取标题',
+  `crawl_brand` varchar(100) DEFAULT NULL COMMENT '抓取品牌',
+  `crawl_brand_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取品牌ID',
+  `crawl_series` varchar(100) DEFAULT NULL COMMENT '抓取车系',
+  `crawl_series_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取车系ID',
+  `crawl_year` varchar(10) DEFAULT NULL COMMENT '抓取年份',
+  `crawl_msrp` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取指导价（单位：分）',
+  `crawl_car_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '抓取车型ID',
+  `status` tinyint(1) NOT NULL DEFAULT 1 COMMENT '状态：1正常 2归档 3删除',
+  `sort` int(11) NOT NULL DEFAULT 0 COMMENT '排序',
+  `created_at` timestamp NULL DEFAULT NULL,
+  `updated_at` timestamp NULL DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `idx_user_id` (`user_id`),
+  KEY `idx_code` (`code`),
+  KEY `idx_status` (`status`),
+  KEY `idx_created_at` (`created_at`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='二手车信息表';
+
+-- 二手车PDF生成日志表
+CREATE TABLE IF NOT EXISTS `used_car_pdf_log` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `user_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '用户ID',
+  `used_car_id` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '二手车ID',
+  `price_snapshot` int(11) unsigned NOT NULL DEFAULT 0 COMMENT '价格快照（单位：分）',
+  `pdf_path` varchar(255) NOT NULL DEFAULT '' COMMENT 'PDF路径',
+  `created_at` timestamp NULL DEFAULT NULL,
+  `updated_at` timestamp NULL DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `idx_user_id` (`user_id`),
+  KEY `idx_used_car_id` (`used_car_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='二手车PDF生成日志表';

backend/runtime/pdf/templates/contactCard.stub

@@ -0,0 +1,84 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <style>
+        body {
+            font-family: "sun-exta", "Noto Sans SC", sans-serif;
+            font-size: 14px;
+            color: #333;
+        }
+
+        h2 {
+            font-size: 16px;
+            text-align: center;
+            margin-bottom: 20px;
+        }
+
+        .card {
+            width: 100%;
+            border: 1px solid #e5e5e5;
+            padding: 20px;
+        }
+
+        .row {
+            margin-bottom: 10px;
+        }
+
+        .label {
+            display: inline-block;
+            width: 100px;
+            color: #666;
+        }
+
+        .qrcode-wrap {
+            margin-top: 20px;
+            text-align: center;
+        }
+
+        .qrcode-wrap img {
+            width: 120px;
+            height: 120px;
+            margin-top: 5px;
+        }
+
+        .tip {
+            margin-top: 20px;
+            font-size: 10px;
+            color: #999;
+            text-align: center;
+        }
+    </style>
+</head>
+<body>
+
+<h2><?= $contactField['title'] ?></h2>
+
+<div class="card">
+<?php if (!empty($user['name'])): ?>
+    <div class="row"><span class="label"><?= $contactField['name'] ?>：</span><?= $user['name'] ?></div>
+<?php endif; ?>
+<?php if (!empty($user['email'])): ?>
+    <div class="row"><span class="label"><?= $contactField['email'] ?>：</span><?= $user['email'] ?></div>
+<?php endif; ?>
+<?php if (!empty($user['phone'])): ?>
+    <div class="row"><span class="label"><?= $contactField['phone'] ?>：</span><?= $user['phone'] ?></div>
+<?php endif; ?>
+<?php if (!empty($user['whatsapp'])): ?>
+    <div class="row"><span class="label">WhatsApp：</span><?= $user['whatsapp'] ?></div>
+<?php endif; ?>
+
+<?php if (!empty($user['social']) && !empty($user['social_code'])): ?>
+    <div class="qrcode-wrap">
+        <div><?= $contactField['code'] ?></div>
+        <img style = "width: 270px;height: 270px;margin-top: 30px;" src="<?= $user['social_code'] ?>">
+    </div>
+<?php endif; ?>
+</div>
+
+<div class="tip">
+    <?= $contactField['left'] ?> ｜ <?= $contactField['right'] ?>
+</div>
+
+</body>
+</html>

backend/runtime/pdf/templates/usedCar.stub

@@ -0,0 +1,156 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <style>
+        body {
+            font-family: "sun-exta", "Noto Sans SC", sans-serif;
+            font-size: 12px;
+            color: #333;
+        }
+
+        h1 {
+            font-size: 18px;
+            margin-bottom: 10px;
+        }
+
+        h2 {
+            font-size: 14px;
+            margin: 20px 0 10px;
+            border-left: 4px solid #1677ff;
+            padding-left: 8px;
+        }
+
+        table {
+            width: 100%;
+            border-collapse: collapse;
+        }
+
+        .info-table td {
+            padding: 8px;
+            border-bottom: 1px solid #eee;
+        }
+
+        .info-table td.label {
+            width: 120px;
+            color: #666;
+            background: #fafafa;
+        }
+
+        .price {
+            font-size: 16px;
+            color: #d4380d;
+            font-weight: bold;
+        }
+
+        .image-list {
+            margin-top: 10px;
+        }
+
+        .image-item {
+            width: 48%;
+            margin-bottom: 10px;
+            display: inline-block;
+        }
+
+        .image-item img {
+            width: 100%;
+            border-radius: 4px;
+        }
+
+        .desc {
+            line-height: 1.8;
+        }
+    </style>
+</head>
+
+<body>
+
+<h1><?= htmlspecialchars($car['product_name']) ?></h1>
+
+<table class="info-table">
+    <tr>
+        <td class="label"><?= $field['price'] ?></td>
+        <td class="price"><?= $field['currency'].' ' ?><?= number_format($car['price'], 2) ?></td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['trade'] ?></td>
+        <td><?= $car['trade'] ?></td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['plate_time'] ?></td>
+        <td><?= $car['plate_time'] ?></td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['displacement'] ?></td>
+        <td><?= $car['displacement'] ?></td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['mileage'] ?></td>
+        <td><?= $car['mileage'].'km' ?></td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['power'] ?></td>
+        <td><?= $car['power'] ?> </td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['body_color'] ?></td>
+        <td><?= $car['body_color'] ?: '-' ?></td>
+    </tr>
+    <tr>
+        <td class="label"><?= $field['created_at'] ?></td>
+        <td><?= $car['created_at'] ?></td>
+    </tr>
+</table>
+
+<?php if (!empty($car['condition_desc'])): ?>
+<h2><?= $field['condition_desc'] ?></h2>
+<div class="desc">
+    <?= nl2br(htmlspecialchars($car['condition_desc'])) ?>
+</div>
+<?php endif; ?>
+
+
+<div class="image-list">
+    <table width="100%" cellpadding="6" cellspacing="0">
+        <thead>
+            <tr>
+               <th colspan="2" style="
+                    font-size:28px;
+                    font-weight:bold;
+                    text-align:left;
+                    padding:12px 0;
+                    border-left:4px solid #1677ff;
+                    padding-left:10px;
+                    background:#fff;
+                ">
+                   <div style="
+                       font-size:28px;
+                       font-weight:bold;
+                       padding:10px 0;
+                   ">
+                   <?= $field['images'] ?>
+                   </div>
+                </th >
+            </tr>
+        </thead>
+        <tbody>
+            <?php foreach ($car['images'] as $i => $img): ?>
+                <?php if ($i % 2 === 0): ?>
+                    <tr>
+                <?php endif; ?>
+
+                <td width="50%" align="center">
+                    <img src="<?= $img ?>" style="width:100%; border-radius:4px;">
+                </td>
+
+                <?php if ($i % 2 === 1): ?>
+                    </tr>
+                <?php endif; ?>
+            <?php endforeach; ?>
+        </tbody>
+    </table>
+</div>
+
+</body>
+</html>