Shu*_*aha 1 javascript django npm reactjs react-jsx
我是Django和ReactJS的新手,正在尝试使用本教程将简单的JSX代码编译为JS:http://geezhawk.github.io/2016/02/02/using-react-with-django-rest-framework .html
没有用,所以我npm run dev以前编译,现在它工作但是在浏览器控制台中出错:未捕获的ReferenceError:react未定义这是我的webpack.config.js
var path = require('path');
var webpack = require('webpack');
var BundleTracker = require('webpack-bundle-tracker');
var nodeExternals = require('webpack-node-externals');
module.exports = {
//the base directory (absolute path) for resolving the entry option
context: __dirname,
//the entry point we created earlier. Note that './' means
//your current directory. You don't have to specify the extension now,
//because you will specify extensions later in the `resolve` section
entry: './assets/js/index',
output: {
//where you want your compiled bundle to be stored
path: path.resolve('./assets/bundles/'),
//naming convention webpack should use for your files
filename: '[name]-[hash].js',
},
target: 'node', // in order to ignore built-in modules like path, fs, etc.
externals: {
react: 'react'
}, // in order to ignore all modules in node_modules folder
plugins: [
//tells webpack where to store data about your bundles.
new BundleTracker({filename: './webpack-stats.json'}),
//makes jQuery available in every module
new webpack.ProvidePlugin({
//React: "react",
$: 'jquery',
jQuery: 'jquery',
'window.jQuery': 'jquery'
})
],
module: {
loaders: [
//a regexp that tells webpack use the following loaders on all
//.js and .jsx files
{test: /\.jsx?$/,
//we definitely don't want babel to transpile all the files in
//node_modules. That would take a long time.
/*exclude: /node_modules/,*/
//use the babel loader
loader: 'babel-loader',
query: {
//specify that we will be dealing with React code
presets: ['react']
}
}
]
},
resolve: {
//tells webpack where to look for modules
modulesDirectories: ['node_modules'],
//extensions that should be used to resolve modules
extensions: ['', '.js', '.jsx']
}
}
和assets/bundles/index.js
var React = require('react')
var ReactDOM = require('react-dom')
//snaha//
var BooksList = React.createClass({
loadBooksFromServer: function(){
console.log(123454657);
$.ajax({
url: this.props.url,
datatype: 'json',
cache: false,
success: function(data) {
this.setState({data: data});
}.bind(this)
})
},
getInitialState: function() {
return {data: []};
},
componentDidMount: function() {
this.loadBooksFromServer();
setInterval(this.loadBooksFromServer,
this.props.pollInterval)
},
render: function() {
if (this.state.data) {
console.log('DATA!')
var bookNodes = this.state.data.map(function(book){
return <li> {book.title} </li>
})
}
return (
<div>
<h1>Hello React!</h1>
<ul>
{bookNodes}
</ul>
</div>
)
}
})
ReactDOM.render(<BooksList url='/api/' pollInterval={1000} />,
document.getElementById('container'))
和templates/body.html
{% load render_bundle from webpack_loader %}
<!doctype html>
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/0.14.7/react-with-addons.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/0.14.7/react-dom.js"></script>
<meta charset="UTF-8">
<title>Hello React
{% block content %}
{{ id }}
{% endblock %}
</title>
</head>
<body>
<div id="container"></div>
{% render_bundle 'main' %}
</body>
</html>
我缺少什么？这是我的Django项目结构
最后我解决了!问题是:它试图让变量做出反应,因为浏览器上的React.js提供了变量React!所以我简单地将webpack.config.js的外部更改为
externals: {
React: 'react'
},
解决了这个问题!
面临的下一个问题:
"过程没有定义"
解决方案:添加
var env = process.env.WEBPACK_ENV;
到webpack.config.js和
new webpack.DefinePlugin({
'process.env.NODE_ENV': '"production"'
}),
new webpack.DefinePlugin({
'process.env': {
'NODE_ENV': '"production"'
}
})
进入model.export的插件部分
所以最终的webpack.config.js将是:
var path = require('path');
var webpack = require('webpack');
var BundleTracker = require('webpack-bundle-tracker');
var nodeExternals = require('webpack-node-externals');
var env = process.env.WEBPACK_ENV;
module.exports = {
//the base directory (absolute path) for resolving the entry option
context: __dirname,
//the entry point we created earlier. Note that './' means
//your current directory. You don't have to specify the extension now,
//because you will specify extensions later in the `resolve` section
entry: './assets/js/index',
output: {
//where you want your compiled bundle to be stored
path: path.resolve('./assets/bundles/'),
//naming convention webpack should use for your files
filename: '[name]-[hash].js',
},
target: 'node', // in order to ignore built-in modules like path, fs, etc.
externals: {
React: 'react'
}, // in order to ignore all modules in node_modules folder
plugins: [
//tells webpack where to store data about your bundles.
new BundleTracker({filename: './webpack-stats.json'}),
//makes jQuery available in every module
new webpack.ProvidePlugin({
//React: "react",
$: 'jquery',
jQuery: 'jquery',
'window.jQuery': 'jquery'
}),
new webpack.DefinePlugin({
'process.env.NODE_ENV': '"production"'
}),
new webpack.DefinePlugin({
'process.env': {
'NODE_ENV': '"production"'
}
})
],
module: {
loaders: [
//a regexp that tells webpack use the following loaders on all
//.js and .jsx files
{test: /\.jsx?$/,
//we definitely don't want babel to transpile all the files in
//node_modules. That would take a long time.
/*exclude: /node_modules/,*/
//use the babel loader
loader: 'babel-loader',
query: {
//specify that we will be dealing with React code
presets: ['react']
}
}
]
},
resolve: {
//tells webpack where to look for modules
modulesDirectories: ['node_modules'],
//extensions that should be used to resolve modules
extensions: ['', '.js', '.jsx']
}
}
现在享受React!快乐编码:-)