小编Niv*_*sri的帖子

当我尝试使用 react-native 中的 fetch 从 cloudinary 获取图像列表时，出现以下错误。如何解决这个问题？

TypeError: Network request failed
    at XMLHttpRequest.xhr.onerror (C:\workspace\react_native\Gallery\node_modules\react-native\node_modules\whatwg-fetch\fetch.js:441)
    at XMLHttpRequest.dispatchEvent (C:\workspace\react_native\Gallery\node_modules\event-target-shim\lib\event-target.js:172)
    at XMLHttpRequest.setReadyState (C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\Network\XMLHttpRequest.js:567)
    at XMLHttpRequest.__didCompleteResponse (C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\Network\XMLHttpRequest.js:397)
    at C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\Network\XMLHttpRequest.js:503
    at RCTDeviceEventEmitter.emit (C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\vendor\emitter\EventEmitter.js:179)
    at MessageQueue.__callFunction (C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:351)
    at C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:116
    at MessageQueue.__guardSafe (C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:314)
    at MessageQueue.callFunctionReturnFlushedQueue (C:\workspace\react_native\Gallery\node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:115)

当我使用 axios 从客户端（React JS）向服务器（spring）发出 post 请求时，服务器的响应时间超过 2 分钟。因此，当需要更多 tan 2 分钟时，客户端不会等待接收响应。所以我试图用下面的代码片段覆盖默认超时。但它不起作用。请帮助我解决问题。

const httpClient = Axios.create();
httpClient.defaults.timeout = 240000;

return httpClient.post(url, data).then(
 res => res
).catch(err => err);