我使用webpack
-boilerplate为vue
编写了一个应用。处理GET
和POST
请求的后端是一个express
服务器。 IDE是Visual Studio代码。
这就是我所做的:
$ vue init webpack app
$ cd app
$ npm install
$ npm install axios express body-parser node-sass sass-loader
$ npm install --save-dev concurrently nodemon
app/express/app.js
如下:
//import express from express
var express = require('express')
var app = express()
// sets port 8080 to default or unless otherwise specified in the environment
app.set('port', process.env.PORT || 8080)
var bodyParser = require('body-parser')
app.use(bodyParser.json())
app.use(express.static(`${__dirname}/../dist/`))
// Test: curl -X POST -H "Content-Type: application/json" -d '{"path": "bla/blub.txt"}' http://localhost:8081/api/save
app.post('/api/save', function (req, res) {
response = {
msg: 'okay',
data: Math.floor(Math.random() * 10)
};
res.end(JSON.stringify(response))
})
var server = app.listen(app.get('port'), function () {
var host = server.address().address
var port = server.address().port
console.log("Example app listening at http://%s:%s", host, port)
})
我修改了vue init webpack
生成的样板代码,使得app/components/HelloWorld.vue
为:
<template>
<div>
<h1>{{ msg }}</h1>
</div>
</template>
<script>
import Axios from 'axios'
const baseUrl = "http://127.0.0.1:8080/api"
export default {
name: 'HelloWorld',
data () {
return {
msg: 'Welcome to Your Vue.js App'
}
},
async created() {
this.msg = await Axios.post(`${baseUrl}/save`, {"path": "bla/blub.txt"})
.then(response => new Promise(resolve => {
let msg = response.data.msg
resolve(msg)
}))
.catch(error => {
console.log(error)
Promise.reject(error)
})
}
}
</script>
<style lang="scss" scoped>
h1 {
font-weight: normal;
}
</style>
要在一个命令(npm start go
中开始开发并允许热重装,我更改了app/package.json
(不知道该复制自何处):
"scripts": {
"dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
"apiserver": "PORT=8081 nodemon express/app.js",
"go": "concurrently --kill-others \"npm run dev\" \"npm run apiserver\"",
"start": "npm run dev",
"build": "node build/build.js"
},
要启动该应用程序的开发版本,我运行:
$ npm run dev # webpack-dev-server starts on port 8080, express on 8081
为避免CORS问题,可以将webpack配置为代理快递请求。更改app/config/index.js
:
proxyTable: {
'/api':{
target: 'http://localhost:8081',
changeOrigin: true,
}
},
现在可以再次从npm run dev
运行app/
,一切正常。
因此,进入生产模式。我跑
$ npm run build
$ node express/app.js
一切正常。
(随着时间的流逝,我在这个问题中添加了自己找到的答案...原始问题是:“为vue前端配置webpack并表达后端(场景包括生产和开发)”)
我的问题是:
如何更改webpack babel设置,以使node
运行的文件app.js
使用ECMA2016(这样就可以使用import express from express
代替require ...
)?
感谢您的帮助!