预览pdf

app/common/controller/UsedCarController.php

@@ -409,4 +409,41 @@ class UsedCarController extends BaseController
         }
     }
 
+    /**
+     * 预览pdf
+     */
+    function previewPdf($request) {
+        try {
+            $raw = $this->service->serviceShow($request);
+            $filePath = runtime_path('pdf') . '/' . $raw['pdf_src'];
+
+            if (empty($raw['pdf_src']) || !file_exists($filePath)) {
+                throw new BusinessException('文件不存在');
+            }
+
+            // 确保 public/pdf 存在
+            $publicDir = public_path('pdf');
+            if (!is_dir($publicDir)) {
+                mkdir($publicDir, 0755, true);
+            }
+
+            // 拷贝到 public 目录
+            $publicFile = $publicDir . '/' . $raw['pdf_src'];
+            if (!file_exists($publicFile)) {
+                copy($filePath, $publicFile);
+            }
+
+            $path = public_path('pdf/' . basename($raw['pdf_src']));
+
+            return response(file_get_contents($path), 200, [
+                'Content-Type' => 'application/pdf',
+                'Access-Control-Allow-Origin' => '*', // 或指定前端域名
+                'Access-Control-Allow-Methods' => 'GET, OPTIONS',
+                'Access-Control-Allow-Headers' => '*',
+            ]);
+        } catch (\Throwable $e) {
+            return $this->error($e->getMessage());
+        }
+    }
+
 }

config/route.php

@@ -60,6 +60,7 @@ Route::group('/common', function () {
         Route::any('/produce/pdf', [app\common\controller\UsedCarController::class, 'producePdf']);
         Route::any('/download/pdf', [app\common\controller\UsedCarController::class, 'downloadPdf']);
         Route::any('/pdf', [app\common\controller\UsedCarController::class, 'getPdf']);
+        Route::any('/preview/pdf', [app\common\controller\UsedCarController::class, 'previewPdf']);
         Route::any('/show', [app\common\controller\UsedCarController::class, 'show']);
         Route::any('/store', [app\common\controller\UsedCarController::class, 'store']);
         Route::any('/update', [app\common\controller\UsedCarController::class, 'update']);