How to solve the problem of 'Error: Network Error' when using axios in Vue application?

How to solve the problem of "Error: Network Error" when using axios in Vue application?

In the development of Vue applications, we often use axios to make API requests or obtain data, but sometimes we encounter "Error: Network Error" in axios requests. At this time we should How to do it?

First of all, you need to understand what "Error: Network Error" means. It usually indicates that there is a problem with the network connection. Common reasons for this error include but are not limited to: network failure, intercepted requests, DNS problems, etc.

So for this error, we can take the following solutions:

Method 1: Check the network connection

When using axios to request data, first ensure that the network connection is normal . We can open the website in a browser or use other tools to test whether the network is normal.

Method 2: Check the request address and request method

Check whether the request address is spelled correctly, and check whether the request method (GET, POST, etc.) is consistent with the API requirements.

Method 3: Increase the request timeout

In axios, the default request timeout is 0ms, which means that the request will not time out. If the interface return time exceeds the client’s waiting time, Then the "Error: Network Error" error will appear. Therefore, we can add a timeout to the request to solve this problem.

For example:

axios.create({
  timeout: 10000 // 10秒超时
})

Method 4: Set request header

Sometimes requesting API requires certain parameters, such as request header Authorization, etc. We can set request header way to solve the "Error: Network Error" problem.

For example:

axios.create({
  headers: {
    'Authorization': 'Bearer ' + token
  }
})

Method 5: Use Proxy Table

If our request needs to go through the proxy server to access the API, we can set it in the Vue configuration file.

For example:

// vue.config.js
module.exports = {
  devServer: {
    proxy: {
      '/api': {
        target: 'http://localhost:8080', // 指定代理服务器
        changeOrigin: true,
        pathRewrite: {
          '^/api': '' // 将/api替换为空
        }
      }
    }
  }
}

The above are five methods to solve "Error: Network Error". I hope it will be helpful to you.

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