vue跨域：proxyTable功能

config目录下index.js

// see http://vuejs-templates.github.io/webpack for documentation.
var path = require('path')

module.exports = {
  build: {
    env: require('./prod.env'),
    index: path.resolve(__dirname, '../dist/index.html'),
    assetsRoot: path.resolve(__dirname, '../dist'),
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    productionSourceMap: true,
    // Gzip off by default as many popular static hosts such as
    // Surge or Netlify already gzip all static assets for you.
    // Before setting to `true`, make sure to:
    // npm install --save-dev compression-webpack-plugin
    productionGzip: false,
    productionGzipExtensions: ['js', 'css'],
    // Run the build command with an extra argument to
    // View the bundle analyzer report after build finishes:
    // `npm run build --report`
    // Set to `true` or `false` to always turn it on or off
    bundleAnalyzerReport: process.env.npm_config_report
  },
  dev: {
    env: require('./dev.env'),
    port: 8080,
    autoOpenBrowser: true,
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    //proxyTable: {},

    proxyTable: {
      '/127.0.0.1:3000': {
        target: 'http://127.0.0.1:3000/',
        changeOrigin: true,
        pathRewrite: {
          '^/127.0.0.1:3000': ''
        }
      }
    },

    // CSS Sourcemaps off by default because relative paths are "buggy"
    // with this option, according to the CSS-Loader README
    // (https://github.com/webpack/css-loader#sourcemaps)
    // In our experience, they generally work as expected,
    // just be aware of this issue when enabling this option.
    cssSourceMap: false
  }
}

跨域访问代码

get的

change_title: function () {

      const http = require("http")
      http.get('/127.0.0.1:3000/hello', (res) => {
        console.log(`Got response: ${res.statusCode}`);
        // consume response body
        this.title = `Got response: ${res.statusCode}`
        res.resume();
      }).on('error', (e) => {
        console.log(`Got error: ${e.message}`);
        this.title = `Got error: ${e.message}`
      });


    

    }

post的

change_title: function () {

   


      this.$http.post('/api/hello', {}, { emulateJSON: true }).then(function (data) {
        // console.log(data);
        this.title = data.status
        // this.title = `Got response: ${data}`
        // res.resume();
      }).catch(function () {
        // console.log("服务器异常");
        this.title = "服务器异常"
        // console.log(`Got error: `);
      });

    }