@@ -0,0 +1,113 @@
+<?php
+
+namespace app\common\service;
+
+use OSS\OssClient;
+use OSS\Core\OssException;
+use support\exception\BusinessException;
+
+class OssService
+{
+    private $accessKeyId;
+    private $accessKeySecret;
+    private $bucket;
+    private $endpoint;
+    private $ossClient;
+
+    public function __construct()
+    {
+        $this->accessKeyId = getenv('OSS_ACCESSID');
+        $this->accessKeySecret = getenv('OSS_ACCESSSECRET');
+        $this->bucket = getenv('OSS_BUCKET');
+        $this->endpoint = getenv('OSS_ENDPOINT');
+        $this->ossClient = new OssClient($this->accessKeyId, $this->accessKeySecret, $this->endpoint);
+    }
+
+    /**
+     * 上传图片到 OSS
+     * @param string $filePath 本地文件路径
+     * @param string $objectKey OSS上存储的对象名称
+     * @return string 图片的 URL
+     */
+    public function uploadImage($filePath, $objectKey)
+    {
+        try {
+            // 上传文件到 OSS
+            $this->ossClient->uploadFile($this->bucket, $objectKey, $filePath);
+            // 构造图片的私有 URL
+            $url = $this->generatePrivateUrl($objectKey);
+            return $url;
+        } catch (OssException $e) {
+            // 错误处理
+            throw new \RuntimeException('OSS Error: ' . $e->getMessage());
+        } catch (\Throwable $th) {
+            // 错误处理
+            throw new BusinessException('Error: ' . $th->getMessage());
+        }
+    }
+
+    /**
+     * 生成图片的私有访问 URL
+     * @param string $objectKey
+     * @return string
+     */
+    public function generatePrivateUrl($objectKey, $expireTime = 3600)
+    {
+        // 生成 OSS 私有 URL（有效期为 3600 秒）
+        return $this->ossClient->signUrl($this->bucket, $objectKey, $expireTime);
+    }
+
+    /**
+     * 删除 OSS 上的文件
+     * @param string $objectKey OSS上存储的对象名称
+     * @return bool 删除是否成功
+     */
+    public function deleteFile($objectKey)
+    {
+        try {
+            // 删除 OSS 上的文件
+            $this->ossClient->deleteObject($this->bucket, $objectKey);
+            return true;
+        } catch (OssException $e) {
+            // 错误处理
+            throw new \RuntimeException('OSS Delete Error: ' . $e->getMessage());
+        } catch (\Throwable $th) {
+            // 错误处理
+            throw new BusinessException('Delete Error: ' . $th->getMessage());
+        }
+    }
+
+    /**
+     * 获取对应的 MIME 类型
+     */
+    public function getMimeTypes($extensions)
+    {
+        $mimeMap = [
+            'jpg' => 'image/jpeg',
+            'jpeg' => 'image/jpeg',
+            'png' => 'image/png',
+            'gif' => 'image/gif',
+            'bmp' => 'image/bmp',
+            'webp' => 'image/webp',
+            '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',
+            'ppt' => 'application/vnd.ms-powerpoint',
+            'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+            'txt' => 'text/plain',
+            'zip' => 'application/zip',
+            'rar' => 'application/x-rar-compressed'
+        ];
+
+        $mimes = [];
+        foreach ($extensions as $ext) {
+            if (isset($mimeMap[$ext])) {
+                $mimes[] = $mimeMap[$ext];
+            }
+        }
+
+        return array_unique($mimes);
+    }
+}