zoukankan      html  css  js  c++  java
  • 安装,配置webpack.

    1.下载node.js

    2.在需要用到webpack的项目下打开命令窗口运行npm init生成package.js

    3.安装webpack,使用npm install webpack --save-dev(在本目录中安装)

    4.在本项目的目录下新建一个webpack.config .js(默认访问的是这个文件,如需更改需要配置,不过我暂时还不知道怎么配的)

    5.在webpack.config .js中配置

     1 var webpack = require('webpack');
     2 module.exports = {
     3     //页面入口文件配置
     4     entry:'./js/index.jsx',
     5     //入口文件输出配置
     6     output:{
     7         path:__dirname,//这个要放在一个绝对路径下
     8         filename:'dite.js',
     9     },
    10     module:{
    11         loaders:[
    12         {test:/.scss$/,loader:'style-loader!css-loader!sass-loader'},//这里需要下载style-loader css-loader sass-loader
    13         {test :/.jsx$/,loader:"babel-loader",query:{
    14             presets:['react','es2015']
    15         }}//babel可以将ES6转换为ES5   需要下载 babel-loader babel-presets-es2015 babel-presets-react
    16         ]
    17     },
    18 //    module:{
    19 //        //加载器配置
    20 //        loaders:[
    21 //        {test:/.css$/,loader:'style-loader!css-loader'},
    22 //        {test:/.js$/,loader:'jsx-loader?sourceMap'},
    23 //        {test:/.scss$/,loader:'style!css!sass!sourceMap'},
    24 //        {test:/.(png|jpg)$/,loader:'url-loader?limit=8192'}//limit=8192将小于8kb的图片转换为base64
    25 //        ]
    26 //    },
    27     resolve:{
    28         extensions:['.js','.json','.scss']
    29     },
    30     plugins:[
    31     //去除代码块内的告警语句
    32         new webpack.optimize.UglifyJsPlugin({
    33             compress:{
    34                 warnings:false
    35             }
    36         }),
    37         //优先考虑使用最多的模块,并为它们分配最小的ID
    38         //new webpack.optimize.OccurenceOrderPlugin()
    39     ]
    40 }

    6.需要新建入口引入的文件'./js/index.jsx',jsx的类容(里面有一些我学习react的代码);

     1 require('../css/index.scss');
     2 import React from 'react';//react的核心库
     3 import ReactDOM from 'react-dom';//提供Dom的相关功能
     4 import render from 'react';
     5 
     6 var b = require('./main');
     7 console.log(b.add(1,2)+"---获得b中的数据!!!");
     8 
     9 console.log("aaa"+React);
    10         var i = 1;
    11         var myStyle = {
    12 
    13           };
    14           var NameStyle = {
    15               fontSize:14,
    16               color:'blue'
    17           };
    18           var LinkStyle = {
    19               fontSize:18,
    20               color:'orange'
    21           }
    22           var arr = [
    23           '<h1>123</h1>',
    24           '<h1>234</h1>'
    25           ];
    26           var HelloWorld = React.createClass({
    27               
    28               render:function(){
    29                   return(
    30                       <div>
    31                       <Name name = {this.props.name}/>
    32                       <Link site = {this.props.site}/>
    33                   </div>
    34                   );
    35               }
    36           });
    37           var Name = React.createClass({
    38               render:function(){
    39                   return (<h1 style={NameStyle}>{this.props.name}</h1>);
    40               }
    41           });
    42           var Link = React.createClass({
    43               render:function(){
    44                   return (
    45                       <div>
    46                           <p>{this.props.site}</p>
    47                           <a href={this.props.site}>{this.props.site}</a>
    48                           </div>
    49                       );
    50               }
    51           });
    52           var LikeButton = React.createClass({
    53               getInitialState:function(){
    54                   return {liked:false};
    55               },
    56               handleClick:function(event){
    57                   this.setState({liked:!this.state.liked});
    58               },
    59               render:function(){
    60                   var text =this.state.liked?'喜欢':'不喜欢';
    61                   return(
    62                       <p onClick={this.handleClick}>
    63                           你{text}我,点我切换状态;
    64                       </p>
    65                   );
    66               }
    67           })
    68     ReactDOM.render(
    69         <h1 style = {myStyle}>
    70         {/*first info*/}
    71           Hello,world!
    72           {1+2}{i==1?'true':'false'}
    73           {arr}
    74           <HelloWorld name = 'yeam' site="http://www.runoob.com"/>
    75           <LikeButton/>
    76         </h1>,
    77         document.getElementById('setInfo')
    78     )

     7.html页面中的信息

     1 <!doctype html>
     2 <html lang="en">
     3   <head>
     4     <meta charset="utf-8">
     5     <title>New React App</title>
     6     <link rel="stylesheet" type="text/css" href="node_modules/bootstrap/dist/css/bootstrap.css">
     7   </head>
     8   <body>
     9     <div id="setInfo">
    10     </div>
    11     <script src="dite.js"></script>
    12   </body>
    13 </html>

     8.package.js中的相应信息

     1 {
     2   "name": "hello",
     3   "version": "1.0.0",
     4   "main": "index.js",
     5   "scripts": {
     6     "test": "echo "Error: no test specified" && exit 1",
     7     "start": "webpack-dev-server --port 3000"
     8   },
     9   "author": "",
    10   "license": "ISC",
    11   "devDependencies": {
    12     "babel-loader": "^6.3.2",
    13     "babel-preset-es2015": "^6.22.0",
    14     "babel-preset-react": "^6.23.0",
    15     "browser-sync": "^2.18.7",
    16     "css-loader": "^0.26.2",
    17     "gulp": "^3.9.1",
    18     "gulp-autoprefixer": "^3.1.1",
    19     "gulp-clean-css": "^3.0.2",
    20     "gulp-concat": "^2.6.1",
    21     "gulp-minify-css": "^1.2.4",
    22     "gulp-sass": "^3.1.0",
    23     "gulp-uglify": "^2.0.1",
    24     "react": "^15.4.2",
    25     "react-dom": "^15.4.2",
    26     "runoob-react-test": "file:React",
    27     "sass-loader": "^6.0.2",
    28     "style-loader": "^0.13.2",
    29     "webpack": "^2.2.1",
    30     "webpack-dev-server": "^2.4.1"
    31   },
    32   "dependencies": {
    33     "react": "^15.4.2",
    34     "react-dom": "^15.4.2"
    35   },
    36   "description": ""
    37 }

     9.发布服务需要安装  npm install webpack-config-server --save-dev

    10.在浏览器中运行 localhost:3000(端口号3000是在package中修改的,如果没有设置默认是8080)

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  • 原文地址:https://www.cnblogs.com/sunnie-cc/p/6511728.html
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