vue 新版本 webpack 代理 跨域设置

旧版本中：dev-server.js 这段去掉

var apiRoutes = express.Router()
//getList
apiRoutes.get('/getDiscList', function (req, res) {
  var url = 'https://c.y.qq.com/splcloud/fcgi-bin/fcg_get_diss_by_tag.fcg'
  axios.get(url, {
    headers: {
      referer: 'https://c.y.qq.com/',
      host: 'c.y.qq.com'
    },
    params: req.query
  }).then((response) => {
    res.json(response.data)
  }).catch((e) => {
    console.log(e)
  })
})
//lyric
apiRoutes.get('/lyric', function (req, res) {
  var url = 'https://c.y.qq.com/lyric/fcgi-bin/fcg_query_lyric_new.fcg'

  axios.get(url, {
    headers: {
      referer: 'https://c.y.qq.com/',
      host: 'c.y.qq.com'
    },
    params: req.query
  }).then((response) => {
    var ret = response.data
    if (typeof ret === 'string') {
      var reg = /^\w+\(({[^()]+})\)$/
      var matches = ret.match(reg)
      if (matches) {
        ret = JSON.parse(matches[1])
      }
    }
    res.json(ret)
  }).catch((e) => {
    console.log(e)
  })
})
//use
app.use('/api', apiRoutes)

在 新的 webpack.dev.config.js 中 添加

//-------------------axios 结合 node.js 代理后端请求 start
const express = require('express')
const axios = require('axios')
const app = express()
var apiRoutes = express.Router()
app.use('/api', apiRoutes)
    //-------------------axios 结合 node.js 代理后端请求 end

const devWebpackConfig = merge(baseWebpackConfig, {
    module: {
        rules: utils.styleLoaders({ sourceMap: config.dev.cssSourceMap, usePostCSS: true })
    },
    // cheap-module-eval-source-map is faster for development
    devtool: config.dev.devtool,

    // these devServer options should be customized in /config/index.js
    devServer: {
        clientLogLevel: 'warning',
        historyApiFallback: {
            rewrites: [
                { from: /.*/, to: path.posix.join(config.dev.assetsPublicPath, 'index.html') },
            ],
        },
        //----------------axios 结合 node.js 代理后端请求
        before(app) {
            // 推荐热门歌单
            app.get('/api/getDiscList', function(req, res) {
                var url = 'https://c.y.qq.com/splcloud/fcgi-bin/fcg_get_diss_by_tag.fcg'
                axios.get(url, {
                    headers: {
                        referer: 'https://c.y.qq.com/',
                        host: 'c.y.qq.com'
                    },
                    params: req.query
                }).then((response) => {
                    res.json(response.data)
                }).catch((e) => {
                    console.log(e)
                })
            })
        },
        //----------------axios 结合 node.js 代理后端请求
        hot: true,
        contentBase: false, // since we use CopyWebpackPlugin.
        compress: true,
        host: HOST || config.dev.host,
        port: PORT || config.dev.port,
        open: config.dev.autoOpenBrowser,
        overlay: config.dev.errorOverlay ? { warnings: false, errors: true } : false,
        publicPath: config.dev.assetsPublicPath,
        proxy: config.dev.proxyTable,
        quiet: true, // necessary for FriendlyErrorsPlugin
        watchOptions: {
            poll: config.dev.poll,
        }
    },
    plugins: [
        new webpack.DefinePlugin({
            'process.env': require('../config/dev.env')
        }),
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.
        new webpack.NoEmitOnErrorsPlugin(),
        // https://github.com/ampedandwired/html-webpack-plugin
        new HtmlWebpackPlugin({
            filename: 'index.html',
            template: 'index.html',
            inject: true
        }),
        // copy custom static assets
        new CopyWebpackPlugin([{
            from: path.resolve(__dirname, '../static'),
            to: config.dev.assetsSubDirectory,
            ignore: ['.*']
        }])
    ]
})