node.js - 无法捕获并记录来自 axios 请求的错误响应

Question

我在我的 React 应用程序中有一个 axios 请求，为此我正在关注 axios npm docs.

这是我的axios请求

 axios.post(helper.getLoginApi(), data)
        .then((response) => {
            console.log(response);

            this.props.history.push(from.pathname)
        })
        .catch((error)=> {
            console.log(error);
        })

我能够在成功请求时成功记录数据。但是，当我故意产生错误并尝试对其进行 console.log 时，我没有记录结果，而是看到了

POST http://localhost:3000/login 401 (Unauthorized) :3000/login:1
Error: Request failed with status code 401 login.js:66

at createError (createError.js:16)

at settle (settle.js:18)

at XMLHttpRequest.handleLoad (xhr.js:77)

但是，当我转到 Chrome 控制台中的“网络”选项卡时，我可以看到返回了以下响应。

提前感谢您的帮助。

Answer 1

来自 Github Docs 。 axios 请求的响应看起来像

{
  // `data` is the response that was provided by the server
  data: {},

  // `status` is the HTTP status code from the server response
  status: 200,

  // `statusText` is the HTTP status message from the server response
  statusText: 'OK',

  // `headers` the headers that the server responded with
  // All header names are lower cased
  headers: {},

  // `config` is the config that was provided to `axios` for the request
  config: {},

  // `request` is the request that generated this response
  // It is the last ClientRequest instance in node.js (in redirects)
  // and an XMLHttpRequest instance the browser
  request: {}
}

所以本质上是 catch(error => )实际上只是catch(response => )

所以你可以记录error.response.data并且您应该能够看到您的回复消息。

When you log console.log(error), what you see is the string returned by the toString method on the error object.

根据同一文档的错误处理部分，您可以像这样捕获错误响应

axios.post(helper.getLoginApi(), data)
        .then((response) => {
            console.log(response);

            this.props.history.push(from.pathname)
        })
        .catch((error)=> {
            if (error.response) {
              // The request was made and the server responded with a status code
              // that falls out of the range of 2xx
              console.log(error.response.data);
              console.log(error.response.status);
              console.log(error.response.headers);
            } else if (error.request) {
              // The request was made but no response was received
              // `error.request` is an instance of XMLHttpRequest in the browser and an instance of
              // http.ClientRequest in node.js
              console.log(error.request);
            } else {
              // Something happened in setting up the request that triggered an Error
              console.log('Error', error.message);
            }
        })