{"id":102791,"date":"2026-09-09T14:17:04","date_gmt":"2026-09-09T06:17:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/102791.html"},"modified":"2026-09-09T14:17:04","modified_gmt":"2026-09-09T06:17:04","slug":"%e5%89%8d%e7%ab%af%e6%9e%b6%e6%9e%84%e5%ae%9e%e6%88%98%ef%bc%9a%e5%bd%93%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%85%b3%e9%97%ad%e6%97%b6%ef%bc%8c%e5%a6%82%e4%bd%95%e4%bc%98%e9%9b%85%e6%8f%90%e7%a4%ba-502","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/102791.html","title":{"rendered":"\u524d\u7aef\u67b6\u6784\u5b9e\u6218\uff1a\u5f53\u670d\u52a1\u5668\u5173\u95ed\u65f6\uff0c\u5982\u4f55\u4f18\u96c5\u63d0\u793a 502 \u9519\u8bef\uff1f"},"content":{"rendered":"

\u524d\u7aef\u67b6\u6784\u5b9e\u6218：\u5f53\u670d\u52a1\u5668\u5173\u95ed\u65f6，\u5982\u4f55\u4f18\u96c5\u63d0\u793a 502 \u9519\u8bef？<\/h2>\n

\u5728\u5f00\u53d1\u4e0e\u8fd0\u7ef4\u8fc7\u7a0b\u4e2d，\u540e\u7aef\u670d\u52a1\u91cd\u542f\u6216\u5b95\u673a\u662f\u5e38\u6709\u7684\u4e8b\u3002\u6b64\u65f6，Nginx \u4f1a\u5411\u6d4f\u89c8\u5668\u8fd4\u56de 502 Bad Gateway \u72b6\u6001\u7801\u3002
\n\u9ed8\u8ba4\u60c5\u51b5\u4e0b，Axios \u4f1a\u629b\u51fa Request failed with status code 502 \u8fd9\u6837\u7684\u539f\u59cb\u9519\u8bef\u4fe1\u606f\u3002\u8fd9\u5bf9\u666e\u901a\u7528\u6237\u6765\u8bf4\u4e0d\u4ec5\u6666\u6da9\u96be\u61c2，\u8fd8\u5bb9\u6613\u5f15\u8d77\u6050\u614c\u3002\u4f5c\u4e3a\u524d\u7aef\u67b6\u6784\u5e08，\u6211\u4eec\u9700\u8981\u5728\u5168\u5c40\u62e6\u622a\u5668\u5c42\u9762\u201c\u6d88\u5316\u201d\u8fd9\u4e9b\u6280\u672f\u6027\u9519\u8bef，\u7ed9\u7528\u6237\u5c55\u793a\u53cb\u597d\u7684\u63d0\u793a\u3002
\n\u672c\u6587\u5c06\u5e26\u4f60\u4f18\u5316 common.js \u4e2d\u7684\u54cd\u5e94\u62e6\u622a\u5668，\u5b9e\u73b0\u5bf9\u670d\u52a1\u4e0d\u53ef\u7528\u72b6\u6001\u7684\u4f18\u96c5\u5904\u7406\u3002<\/p>\n

\u4e00\u3001 \u6838\u5fc3\u4fee\u590d\u903b\u8f91<\/h4>\n

\u6211\u4eec\u9700\u8981\u5728\u54cd\u5e94\u62e6\u622a\u5668\u7684\u5f02\u5e38\u5904\u7406\u51fd\u6570\u4e2d，\u5bf9 HTTP \u72b6\u6001\u7801\u8fdb\u884c\u5206\u5c42\u5904\u7406\u3002\u4f18\u5148\u5904\u7406\u670d\u52a1\u5668\u6545\u969c\u7c7b\u9519\u8bef（502\/503\/504），\u5176\u6b21\u662f\u4e1a\u52a1\u9650\u6d41（429），\u6700\u540e\u624d\u662f\u5e38\u89c4\u7684\u4e1a\u52a1\u5f02\u5e38\u3002
\n\u4ee5\u4e0b\u662f\u4f18\u5316\u540e\u7684 common.js \u5f02\u5e38\u5904\u7406\u90e8\u5206\u4ee3\u7801：<\/p>\n

\/\/ ==================== B. \u5f02\u5e38\u54cd\u5e94 (401, 429, 500, 502 \u7b49) ====================<\/span>
\nasync<\/span> function<\/span> (<\/span>error<\/span>)<\/span> {<\/span>
\n const<\/span> originalRequest =<\/span> error.<\/span>config;<\/span>
\n const<\/span> response =<\/span> error.<\/span>response;<\/span>
\n \/\/ —————————————————–<\/span>
\n \/\/ 1. \u670d\u52a1\u5668\u6545\u969c\u7c7b\u62e6\u622a (502, 503, 504)<\/span>
\n \/\/ —————————————————–<\/span>
\n if<\/span> (<\/span>response)<\/span> {<\/span>
\n const<\/span> status =<\/span> response.<\/span>status;<\/span>
\n \/\/ 502: \u7f51\u5173\u9519\u8bef（\u540e\u7aef\u670d\u52a1\u672a\u542f\u52a8\u6216Nginx\u8fde\u63a5\u4e0d\u4e0a\u540e\u7aef）<\/span>
\n \/\/ 503: \u670d\u52a1\u4e0d\u53ef\u7528（\u540e\u7aef\u670d\u52a1\u8fc7\u8f7d\u6216\u6b63\u5728\u7ef4\u62a4）<\/span>
\n if<\/span> (<\/span>status ===<\/span> 502<\/span> ||<\/span> status ===<\/span> 503<\/span>)<\/span> {<\/span>
\n return<\/span> Promise.<\/span>reject<\/span>(<\/span>"\u670d\u52a1\u5668\u6b63\u5728\u7ef4\u62a4\u6216\u5df2\u5173\u95ed，\u8bf7\u7a0d\u540e\u518d\u8bd5"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n \/\/ 504: \u7f51\u5173\u8d85\u65f6（\u540e\u7aef\u5904\u7406\u65f6\u95f4\u8fc7\u957f）<\/span>
\n if<\/span> (<\/span>status ===<\/span> 504<\/span>)<\/span> {<\/span>
\n return<\/span> Promise.<\/span>reject<\/span>(<\/span>"\u7f51\u7edc\u8fde\u63a5\u8d85\u65f6，\u8bf7\u91cd\u8bd5"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>error.<\/span>message.<\/span>includes<\/span>(<\/span>'Network Error'<\/span>)<\/span>)<\/span> {<\/span>
\n \/\/ \u670d\u52a1\u5668\u5b8c\u5168\u6ca1\u54cd\u5e94（\u8fde Nginx \u90fd\u6ca1\u5f00）\u6216\u8005\u672c\u5730\u65ad\u7f51<\/span>
\n \/\/ \u6b64\u65f6 response \u5bf9\u8c61\u4e0d\u5b58\u5728，\u9700\u8981\u901a\u8fc7 error.message \u5224\u65ad<\/span>
\n return<\/span> Promise.<\/span>reject<\/span>(<\/span>"\u65e0\u6cd5\u8fde\u63a5\u5230\u670d\u52a1\u5668，\u8bf7\u68c0\u67e5\u7f51\u7edc"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n \/\/ —————————————————–<\/span>
\n \/\/ 2. 429 \u9650\u6d41\u62e6\u622a<\/span>
\n \/\/ —————————————————–<\/span>
\n if<\/span> (<\/span>response &&<\/span> response.<\/span>status ===<\/span> 429<\/span>)<\/span> {<\/span>
\n const<\/span> msg =<\/span> (<\/span>response.<\/span>data &&<\/span> response.<\/span>data.<\/span>errorMsg)<\/span>
\n ?<\/span> response.<\/span>data.<\/span>errorMsg
\n :<\/span> "\u8bf7\u6c42\u8fc7\u4e8e\u9891\u7e41，\u8bf7\u7a0d\u540e\u518d\u8bd5"<\/span>;<\/span>
\n return<\/span> Promise.<\/span>reject<\/span>(<\/span>msg)<\/span>;<\/span>
\n }<\/span>
\n \/\/ —————————————————–<\/span>
\n \/\/ 3. 401 \u4e3b\u52a8\u5237\u65b0\u903b\u8f91<\/span>
\n \/\/ —————————————————–<\/span>
\n if<\/span> (<\/span>
\n response &&<\/span>
\n response.<\/span>status ===<\/span> 401<\/span> &&<\/span>
\n !<\/span>originalRequest.<\/span>url.<\/span>includes<\/span>(<\/span>"\/user\/refresh"<\/span>)<\/span> &&<\/span>
\n !<\/span>originalRequest.<\/span>_retry
\n )<\/span> {<\/span>
\n \/\/ … (\u6b64\u5904\u4fdd\u6301\u4f60\u539f\u6709\u7684 Token \u5237\u65b0\u903b\u8f91\u4e0d\u53d8) …<\/span>
\n \/\/ \u6ce8\u610f：\u5982\u679c\u670d\u52a1\u7aef 502，\u4e0a\u9762\u5df2\u7ecf\u62e6\u622a\u5e76 reject \u4e86，\u4e0d\u4f1a\u8d70\u5230\u8fd9\u91cc\u3002<\/span>
\n \/\/ \u53ea\u6709\u72b6\u6001\u7801\u786e\u5b9e\u662f 401 \u65f6\u624d\u4f1a\u8fdb\u5165\u6b64\u5206\u652f\u3002<\/span>
\n }<\/span>
\n \/\/ —————————————————–<\/span>
\n \/\/ 4. \u6700\u7ec8\u515c\u5e95：\u72b6\u6001\u7801\u6620\u5c04\u4e0e\u9ed8\u8ba4\u63d0\u793a<\/span>
\n \/\/ —————————————————–<\/span>
\n \/\/ \u5b9a\u4e49\u5e38\u89c1 HTTP \u72b6\u6001\u7801\u7684\u53cb\u597d\u63d0\u793a\u6620\u5c04<\/span>
\n const<\/span> statusTextMap =<\/span> {<\/span>
\n 400<\/span>:<\/span> "\u8bf7\u6c42\u53c2\u6570\u9519\u8bef"<\/span>,<\/span>
\n 404<\/span>:<\/span> "\u8bf7\u6c42\u8d44\u6e90\u4e0d\u5b58\u5728"<\/span>,<\/span>
\n 405<\/span>:<\/span> "\u8bf7\u6c42\u65b9\u5f0f\u4e0d\u6b63\u786e"<\/span>,<\/span>
\n 500<\/span>:<\/span> "\u670d\u52a1\u5668\u5185\u90e8\u5f02\u5e38"<\/span>
\n }<\/span>;<\/span>
\n \/\/ \u4f18\u5148\u53d6\u540e\u7aef\u8fd4\u56de\u7684 errorMsg，\u5176\u6b21\u53d6\u6620\u5c04\u8868\u6587\u6848，\u6700\u540e\u515c\u5e95<\/span>
\n const<\/span> finalMsg =<\/span> (<\/span>response &&<\/span> response.<\/span>data &&<\/span> response.<\/span>data.<\/span>errorMsg)<\/span>
\n ?<\/span> response.<\/span>data.<\/span>errorMsg
\n :<\/span> (<\/span>response &&<\/span> statusTextMap[<\/span>response.<\/span>status]<\/span>)<\/span>
\n ?<\/span> statusTextMap[<\/span>response.<\/span>status]<\/span>
\n :<\/span> (<\/span>error.<\/span>message ||<\/span> "\u7cfb\u7edf\u7e41\u5fd9"<\/span>)<\/span>;<\/span>
\n return<\/span> Promise.<\/span>reject<\/span>(<\/span>finalMsg)<\/span>;<\/span>
\n}<\/span><\/p>\n

\u4e8c\u3001 \u67b6\u6784\u539f\u7406\u89e3\u6790<\/h4>\n

\u4e3a\u4ec0\u4e48\u8fd9\u6837\u4fee\u6539\u80fd\u89e3\u51b3\u95ee\u9898？
\n1. \u72b6\u6001\u7801\u4f18\u5148\u7ea7\u62e6\u622a
\n\u6211\u4eec\u5728\u4ee3\u7801\u6700\u524d\u7aef\u589e\u52a0\u4e86\u5bf9 502\u3001503 \u7684\u5224\u65ad\u3002\u4e00\u65e6\u68c0\u6d4b\u5230\u8fd9\u4e9b\u72b6\u6001\u7801，\u76f4\u63a5\u8fd4\u56de\u56fa\u5b9a\u7684\u53cb\u597d\u6587\u6848，\u963b\u65ad\u540e\u7eed\u903b\u8f91\u3002\u8fd9\u6837\u907f\u514d\u4e86\u5c06\u8fd9\u4e9b\u9519\u8bef\u4f20\u9012\u5230\u540e\u7eed\u7684\u4e1a\u52a1\u903b\u8f91\u4e2d\u3002
\n2. \u533a\u5206\u201c\u65e0\u54cd\u5e94\u201d\u4e0e\u201c\u9519\u8bef\u54cd\u5e94\u201d
\n\u5f53\u670d\u52a1\u5668\u5b8c\u5168\u5173\u95ed（\u751a\u81f3\u8fde Nginx \u90fd\u6ca1\u5f00）\u65f6，Axios \u6536\u4e0d\u5230 HTTP \u54cd\u5e94，\u6b64\u65f6 error.response \u4e3a undefined\u3002
\n\u4ee3\u7801\u901a\u8fc7 error.message.includes('Network Error') \u51c6\u786e\u6355\u6349\u4e86\u8fd9\u79cd\u5e95\u5c42\u7f51\u7edc\u4e2d\u65ad\u7684\u60c5\u51b5\u3002
\n3. \u72b6\u6001\u6620\u5c04\u8868
\n\u901a\u8fc7 statusTextMap \u5bf9\u8c61，\u6211\u4eec\u5c06\u5e38\u89c1\u7684 HTTP \u9519\u8bef\u7801（400, 404, 500）\u96c6\u4e2d\u7ba1\u7406\u3002\u5982\u679c\u540e\u7aef\u6ca1\u6709\u8fd4\u56de\u8be6\u7ec6\u7684 errorMsg，\u524d\u7aef\u4f1a\u81ea\u52a8\u6839\u636e\u72b6\u6001\u7801\u663e\u793a\u201c\u8bf7\u6c42\u53c2\u6570\u9519\u8bef\u201d\u6216\u201c\u670d\u52a1\u5668\u5185\u90e8\u5f02\u5e38\u201d，\u800c\u4e0d\u662f\u539f\u751f\u7684\u82f1\u6587\u5806\u6808\u4fe1\u606f\u3002
\n4. \u6d88\u9664\u6280\u672f\u672f\u8bed
\n\u539f\u6765\u7684 error.message \u53ef\u80fd\u5305\u542b Request failed with status code… \u8fd9\u79cd\u6280\u672f\u672f\u8bed\u3002\u7ecf\u8fc7\u4e0a\u8ff0\u91cd\u6784，\u7528\u6237\u770b\u5230\u7684\u5c06\u53ea\u6709\u4f60\u5b9a\u4e49\u7684\u4e2d\u6587\u63d0\u793a\u8bed，\u4f53\u9a8c\u66f4\u52a0\u7edf\u4e00\u3002<\/p>\n

\u4e09\u3001 \u6d4b\u8bd5\u5efa\u8bae<\/h4>\n

\u4fee\u6539\u5b8c\u6210\u540e，\u5efa\u8bae\u8fdb\u884c\u4ee5\u4e0b\u6d4b\u8bd5\u4ee5\u786e\u4fdd\u903b\u8f91\u751f\u6548：<\/p>\n

  • \u6a21\u62df 502：\u505c\u6389 Spring Boot \u540e\u7aef\u670d\u52a1，\u4f46\u4fdd\u7559 Nginx \u8fd0\u884c\u3002\u6b64\u65f6 Nginx \u627e\u4e0d\u5230\u540e\u7aef\u4f1a\u62a5 502\u3002\u5237\u65b0\u524d\u7aef\u70b9\u51fb\u6309\u94ae，\u5e94\u63d0\u793a\u201c\u670d\u52a1\u5668\u6b63\u5728\u7ef4\u62a4\u6216\u5df2\u5173\u95ed，\u8bf7\u7a0d\u540e\u518d\u8bd5\u201d\u3002<\/li>\n
  • \u6a21\u62df\u7f51\u7edc\u65ad\u5f00：\u76f4\u63a5\u628a\u540e\u7aef\u670d\u52a1\u548c Nginx \u5168\u90e8\u5173\u95ed\u3002\u70b9\u51fb\u6309\u94ae\u5e94\u63d0\u793a\u201c\u65e0\u6cd5\u8fde\u63a5\u5230\u670d\u52a1\u5668，\u8bf7\u68c0\u67e5\u7f51\u7edc\u201d\u3002<\/li>\n
  • \u6e05\u7406\u7f13\u5b58：\u4fee\u6539\u5b8c JS \u6587\u4ef6\u540e，\u8bb0\u5f97\u5728\u6d4f\u89c8\u5668\u5f3a\u5236\u5237\u65b0（Ctrl + F5）\u6e05\u7406\u7f13\u5b58\u3002
    \n\u901a\u8fc7\u8fd9\u79cd\u5168\u5c40\u5c42\u9762\u7684\u5bb9\u9519\u5904\u7406，\u4f60\u7684\u524d\u7aef\u5e94\u7528\u5728\u9762\u5bf9\u540e\u7aef\u670d\u52a1\u6ce2\u52a8\u65f6，\u5c06\u8868\u73b0\u51fa\u66f4\u9ad8\u7684\u5065\u58ee\u6027\u548c\u4e13\u4e1a\u5ea6\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"

    \u524d\u7aef\u67b6\u6784\u5b9e\u6218：\u5f53\u670d\u52a1\u5668\u5173\u95ed\u65f6，\u5982\u4f55\u4f18\u96c5\u63d0\u793a 502 \u9519\u8bef？
    \n\u5728\u5f00\u53d1\u4e0e\u8fd0\u7ef4\u8fc7\u7a0b\u4e2d，\u540e\u7aef\u670d\u52a1\u91cd\u542f\u6216\u5b95\u673a\u662f\u5e38\u6709\u7684\u4e8b\u3002\u6b64\u65f6，Nginx \u4f1a\u5411\u6d4f\u89c8\u5668\u8fd4\u56de 502 Bad Gateway \u72b6\u6001\u7801\u3002
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