feat: 添加代理隧道连接失败的重试机制

refactor(crawler): 在各爬虫服务中实现代理错误重试逻辑
feat(uni-app): 新增投标项目查看器的uni-app版本

src/crawler/services/chdtp_target.ts

@@ -14,6 +14,56 @@ interface ChdtpCrawlerType {
   extract(html: string): ChdtpResult[];
 }
 
+// 检查错误是否为代理隧道连接失败
+function isTunnelConnectionFailedError(error: unknown): boolean {
+  if (error instanceof Error) {
+    return (
+      error.message.includes('net::ERR_TUNNEL_CONNECTION_FAILED') ||
+      error.message.includes('ERR_TUNNEL_CONNECTION_FAILED')
+    );
+  }
+  return false;
+}
+
+// 延迟重试函数
+async function delayRetry(
+  operation: () => Promise<void>,
+  maxRetries: number = 3,
+  delayMs: number = 5000,
+  logger?: Logger,
+): Promise<void> {
+  let lastError: Error | unknown;
+
+  for (let attempt = 1; attempt <= maxRetries; attempt++) {
+    try {
+      await operation();
+      return;
+    } catch (error) {
+      lastError = error;
+
+      if (isTunnelConnectionFailedError(error)) {
+        if (attempt < maxRetries) {
+          const delay = delayMs * attempt; // 递增延迟
+          logger?.warn(
+            `代理隧道连接失败，第 ${attempt} 次尝试失败，${delay / 1000} 秒后重试...`,
+          );
+          await new Promise((resolve) => setTimeout(resolve, delay));
+        } else {
+          logger?.error(
+            `代理隧道连接失败，已达到最大重试次数 ${maxRetries} 次`,
+          );
+          throw error;
+        }
+      } else {
+        // 非代理错误，直接抛出
+        throw error;
+      }
+    }
+  }
+
+  throw lastError;
+}
+
 export const ChdtpCrawler = {
   name: '华电集团电子商务平台 ',
   url: 'https://www.chdtp.com/webs/queryWebZbgg.action?zbggType=1',
@@ -42,7 +92,14 @@ export const ChdtpCrawler = {
 
     try {
       logger.log(`Navigating to ${this.url}...`);
-      await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+      await delayRetry(
+        async () => {
+          await page.goto(this.url, { waitUntil: 'networkidle2', timeout: 60000 });
+        },
+        3,
+        5000,
+        logger,
+      );
 
       while (currentPage <= maxPages) {
         const content = await page.content();