node.js - Angular-webpack-Starter, 怎么把NodeJS添加进项目里？

找到答案了！
在config/webpack.dev.js的devServer里添加

proxy: {
    '/api/*': 'http://<YOUR_BACKEND_HOST>:<YOUR_BACKEND_PORT>',
},

如：

devServer: {
      port: METADATA.port,
      host: METADATA.host,
      historyApiFallback: true,
      watchOptions: {
        aggregateTimeout: 300,
        poll: 1000
      },
      outputPath: helpers.root('dist'),
      proxy: {
        '/api/*': 'http://localhost:1234'
      }
},

对应的nodeJS代码：

const express = require('express');
const app = express();

app.get('/', function(req,res){
    console.log('got it');
    res.send().end();
});
app.get('/api/datas', function(req,res){
    console.log(req.baseUrl);
    res.send({datas: [1,2,3,4,5]}).end();
})
app.listen('1234',function(){
    console.log('running on 1234 port');
});