####搭建webpack+react环境
参考:https://my.oschina.net/u/1403181/blog/672501
1. 新建一个文件夹:
react-demo
2. cd react-demo
3. npm install webpack -g #不推荐全局安装，原因是可防止不同项目依赖不同版本的 Webpack 而导致冲突。
4. npm init 命令生成 package.json
5. npm install webpack --save-dev #安装webpack，推荐方式，安装到本项目
6. npm install babel-core babel-loader babel-preset-es2015 babel-preset-react --save-dev #安装babel
7. npm install react react-dom --save-dev #安装react react-dom
7.1 npm install style-loader --save-dev
7.2 npm install css-loader --save-dev
8. 新建webpack.config.js文件
var path = require('path');
var webpack = require('webpack');
module.exports = {
entry: ['webpack/hot/dev-server', path.resolve(__dirname, './index.js')],
output: {
path: path.resolve(__dirname, './build'),
filename: 'bundle.js'
},
devtool:'source-map',
module: {
loaders: [
{
test:/.css$/,loader:'style!css'
},
{
test: /.js?$/,
exclude: /(node_modules|bower_components)/,
loader: 'babel',
query: {
presets: ['es2015', 'react']
}
}
]
},
plugins: [
new webpack.HotModuleReplacementPlugin()
]
};
8.1 .babelrc中添加
{
"presets": ["es2015","react"]
}
9. npm install webpack-dev-server --save-dev #安装webpack-dev-server
10. 在package.json文件中为scripts添加：
"scripts": {
"build": "webpack",
"dev": "webpack-dev-server --devtool eval --progress --colors --content-base build"
}
最后我们的package.json代码是这样的：
{
"name": "reactpro1",
"version": "1.0.0",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"bundle": "babel-node tools/run bundle",
"build": "webpack",
"dev": "webpack-dev-server --devtool eval --progress --colors --content-base build"
},
"author": "jx",
"license": "ISC",
"devDependencies": {
"babel-core": "^6.8.0",
"babel-loader": "^6.2.4",
"babel-preset-es2015": "^6.6.0",
"babel-preset-react": "^6.5.0",
"react": "^15.0.2",
"react-dom": "^15.1.0",
"webpack": "^1.13.0",
"webpack-dev-server": "^1.14.1"
},
"dependencies": {
"webpack": "^1.13.0",
"webpack-dev-server": "^1.14.1"
},
"description": ""
}
11. 编写index.html
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<script src="http://cdn.bootcss.com/jquery/1.11.2/jquery.min.js"></script>
<title>React Project</title>
</head>
<body>
<div id="content"></div>
<script src="./build/bundle.js"></script>
</body>
</html>
12. index.js如下写:
let React = require('react');
let ReactDOM = require('react-dom');
ReactDOM.render(<div>hello </div>, document.getElementById('content'));
13. webpack打包即可
完毕...................
PS:
复杂点的index.js如下
let React = require('react');
let ReactDOM = require('react-dom');
import './index.css';
class Login extends React.Component{
constructor(props) {
super(props);
this.state = {
userId: '',
userPassword: '',
submitEnabled: false,
};
}
componentWillMount() {
console.log("componentWillMount");
}
componentDidMount() {
console.log("componentDidMount");
}
componentWillUnmount() {
console.log("componentWillUnmount");
}
//event
handleClickSubmit() {
if(this.state.userId.length < 1 || this.state.userPassword.length < 1){
return;
}
$.get("http://publicschool.sinaapp.com/test/test.php?name=jack", function(result) {
console.log(result);
});
}
handleChangeId () {
this.setState({
userId:this.refs._ref_userId.value,
submitEnabled:this.refs._ref_userId.value.length > 0 && this.refs._ref_userPassword.value.length > 0,
});
}
handleChangePassword () {
this.setState({
userPassword:this.refs._ref_userPassword.value,
submitEnabled:this.refs._ref_userId.value.length > 0 && this.refs._ref_userPassword.value.length > 0,
});
}
//渲染方法
render () {
return(
<div className="login">
<div className="title">
{this.props.title}
</div>
<div className="userRole">
{this.props.role}
</div>
<input type="text" ref="_ref_userId" placeholder="用户名" onChange={()=>this.handleChangeId()} />
<input type="password" ref="_ref_userPassword" placeholder="密码" onChange={()=>this.handleChangePassword()} />
<button type="button" onClick={()=>this.handleClickSubmit()}>登录</button>
</div>);
}
}
ReactDOM.render(
<Login title="title" role="ddd"/>,
document.getElementById('content')
);
css如下：
.login{
background-color: red;
}
.header{
height: 30px;
background-color: gray;
}
.userRole{
height:80px;
background-color: lightcyan;
}
.userId{
}
.userPassword{
}
.submitButtonEnabled{
color:blue;
}
.submitButtonDisabled{
color: gray;
}