为什么我在Vue.js中收到ERR_CONNECTION_TIMED_OUT？

Question

使用vue cli 3创建新项目后，出现以下错误：

GET http://192.168.1.13:8080/sockjs-node/info?t=1538257166715 net :: ERR_CONNECTION_TIMED_OUT sockjs.js？9be2：1605

作业系统：Windows 10

Answer 1

使用以下代码创建vue.config.js：

module.exports = {
devServer: {

    host: 'localhost'
    }
};

https://cli.vuejs.org/config/#devserver

Answer 2

To expand on Alexey's answer...

If your frontend app and the backend API server are not running on the same host, you will need to proxy API requests to the API server during development. This is configurable via the devServer.proxy option in vue.config.js. https://cli.vuejs.org/config/#devserver

module.exports = {
  devServer: {
    proxy: 'http://localhost:8080'
  }
}