Upload screenshotService.js

backend/src/services/screenshotService.js

@@ -3,6 +3,7 @@ import playwright from 'playwright';
 import fs from 'fs';
 import path from 'path';
 import { fileURLToPath } from 'url';
+import crypto from 'crypto';
 
 // 获取当前文件的目录路径
 const __filename = fileURLToPath(import.meta.url);
@@ -474,7 +475,6 @@ class ScreenshotService {
   generateCacheKey(htmlContent, options) {
     const { format, quality, width, height } = options;
     // 使用内容和选项的哈希作为缓存键
-    const crypto = require('crypto');
     const contentHash = crypto.createHash('md5').update(htmlContent).digest('hex').substring(0, 8);
     return `${contentHash}_${width}x${height}_${format}_${quality}`;
   }