webpack+vue+koa+mongoDB,从零开始搭建一个网站
github 地址 https://github.com/wangxiaoxi...
webpakc+vue的搭建
1.新建项目文件夹（see-films);
2.npm init //初始化项目
3.搭建webpack的基本框架
const path = require("path");
const webpack = require("webpack");
module.exports = {
entry:{
entry:"./src/entry.js"
},
output:{
path:path.resolve( __dirname,"dist" ),
filename:"[name].js"
},
module:{
},
plugins:[
],
devServer:{
}
};同时安装依赖
npm i -D webpack(版本号4.14.0) npm i -D webpack-cli
4.webpack的热更新
npm i -D webpack-dev-server
devServer:{
contentBase:path.resolve( __dirname,"dist" ),
host:"127.0.0.1",
compress:true,
port:9001
}创建一个src文件夹，创建一个entry.js文件测试能否打包，发现报错 缺少mode
在webpacl.config.js文件里面的入口entry上面加上mode:"development",现在先是在本地跑起来，如果是生产环境的话mode:"production"，此时再进行打包----打包成功。第一步完成。
5.安装模板文件依赖
npm i -D html-webpack-plugin
在webpack.config.js文件中的plugins中
plugins:[
new htmlPlugin({
minify:{
removeAttributeQuotes:true
},
hash:true,
template:"./src/index.html"
})
]在src文件夹下面创建index.html
然后webpack测试能否打包成功
此时的目录结构是这样子的!
图片描述
6.vue的搭建!!!
根目录新建文件夹client
创建文件 main.js和App.vue
在根目录创建index.html
然后修改webpack.config.js文件中的入口和plugin插件的模板
并安装依赖
npm i -S vue
npm i -D vue-template-complier
npm i -D extract-text-webpack-plugin
npm i -D vue-loader vue-style-loader css-loader
此时的webpack.config.js是这样的
const path = require("path");
const webpack = require("webpack");
const htmlPlugin = require("html-webpack-plugin");
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const VueLoaderPlugin = require('vue-loader/lib/plugin');
module.exports = {
mode:"development",
resolve: {
extensions: ['.js', '.vue', '.json'],
alias: {
'vue$': 'vue/dist/vue.esm.js'
}
},
entry:{
entry:"./client/main.js",
vue:"vue"
},
output:{
path:path.resolve( __dirname,"dist" ),
filename:"[name].js"
},
module:{
rules:[
{
test: /\.vue$/,
loader: 'vue-loader',
options: {
loaders: {
css: ExtractTextPlugin.extract({
use: {loader: 'css-loader'},
fallback: 'vue-style-loader'
})
}
}
}
]
},
plugins:[
new htmlPlugin({
minify:{
removeAttributeQuotes:true
},
hash:true,
template:"./index.html"
}),
new VueLoaderPlugin()，
new ExtractTextPlugin("css/index.css")
],
devServer:{
contentBase:path.resolve( __dirname,"dist" ),
host:"127.0.0.1",
compress:true,
port:9001
}
};到此处就是一个最基础的vue架构；
此时的目录结构如下
图片描述
看到这里，相信你也测试过，然后发现有个问题，就是在.vue文件里面的style中对样式进行修改会报错，原因是webpack4.x版本得使用mini-css-extract-plugin代替原来的extract-text-webpack-plugin，修改之后如下
const path = require("path");
const webpack = require("webpack");
const htmlPlugin = require("html-webpack-plugin");
const VueLoaderPlugin = require('vue-loader/lib/plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
module.exports = {
devtool:"cheap-module-eval-source-map",
mode:"development",
resolve: {
extensions: ['.js', '.vue', '.json'],
alias: {
'vue$': 'vue/dist/vue.esm.js'
}
},
entry:{
entry:"./client/main.js",
vue:"vue"
},
output:{
path:path.resolve( __dirname,"dist" ),
filename:"[name].js",
publicPath:"http://127.0.0.1:9001/"
},
module:{
rules:[
{
test: /\.js$/,
use: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.css$/,
use:[
MiniCssExtractPlugin.loader,
{
loader: 'css-loader?modules=false',
options: {
importLoaders: 1,
minimize: true
}
}
]
},
{
test: /\.vue$/,
loader: 'vue-loader'
}
]
},
plugins:[
new htmlPlugin({
minify:{
removeAttributeQuotes:true
},
hash:true,
template:"./index.html"
}),
new VueLoaderPlugin(),
new MiniCssExtractPlugin({
filename: "[name].css",
chunkFilename: "[id].css"
})
],
devServer:{
contentBase:path.resolve( __dirname,"dist" ),
host:"127.0.0.1",
compress:true,
port:9001
}
};7.VUE热更新
只需要安装vue-hot-reload-api依赖 配合就能够轻松实现。
8.VUE路由
安装vue-router 然后修改main.js如下，并在同层目录生成router.config.js,此时的就能根据你的喜好去建立路由了。
import Vue from 'vue';
import App from './App';
import VueRouter from 'vue-router';
Vue.use(VueRouter);
import routes from './router.config.js';
const router = new VueRouter({
routes: routes
});
new Vue({
el: '#app',
router,
components: { App },
template: '<App/>'
})9.KOA的引入和基础测试
const Koa = require('koa');
const Rrouter = require('koa-router');
const cors = require('koa2-cors');
( async () => {
const app = new Koa();
app.use( cors() );
const router = new Rrouter();
router.get('/getFirstMessage',async ctx=>{
ctx.body = {
message:"get"
}
});
app.use(router.routes()).use(router.allowedMethods());
app.listen(9001 ,async ()=>{
console.log("CONNECTED")
});
} )()http://127.0.0.1:9001/getFirstMessage
此时就能够通过接口拿到数据
10.改装路由---使用装饰器
在server文件夹下建立如上文件夹和文件
npm i -S babel-core babel-plugin-transform-decorators-legacy babel-polyfill ramda lodash babel-preset-stage-0
/*装饰器注册*/
require('babel-core/register')();
require('babel-polyfill');
const Koa = require('koa');
/*该方法用来批量引入中间件*/
const useMiddlewares = require('./lib/useMiddlewares');
( async () => {
const app = new Koa();
await useMiddlewares(app);
app.listen(9001 ,async ()=>{
console.log("CONNECTED")
});
} )()