webpack使用熱更新后redux 報錯如下
嘗試了很多方法都不行,react更新使用的是webpack-hot-middleware + webpack-dev-middleware
, 采用node server.js 啟動服務。熱更新是可以使用的,但是只要修改保存后,redux就報上面的錯誤。找了很多原因也沒有解決,下面是入口的配置server.js
const express = require('express');
const webpack = require('webpack');
const webpackDevMiddleware = require('webpack-dev-middleware');
const webpackHotMiddleware = require('webpack-hot-middleware');
const path = require('path');
const app = express();
const config = require('./webpack.config.js');
const compiler = webpack(config);
// Tell express to use the webpack-dev-middleware and use the webpack.config.js
// configuration file as a base.
app.use(webpackDevMiddleware(compiler, {
publicPath: config.output.publicPath,
noInfo: false, // 顯示無信息到控制臺(僅警告和錯誤
historyApiFallback: true,
stats: {
colors: true,
}
}));
app.use(webpackHotMiddleware(compiler));
app.get('/', function (req, res) {
res.sendFile(path.join(__dirname, 'index.html'));
})
app.use(express.static(path.join(__dirname, 'public')));
// Serve the files on port 3000.
app.listen(3000, function () {
console.log('Example app listening on port 3000!\n');
});
webpack.config.js
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const webpack = require('webpack');
const nodeEnv = process.env.NODE_ENV || 'development';
const isPro = nodeEnv === 'production';
module.exports = {
devtool: 'inline-source-map',
mode: 'development',
entry: {
// app: './src/index.js',
app: ['webpack-hot-middleware/client', __dirname + '/src/index.js'], //webpack-hot-middleware/client
// app: ['webpack/hot/dev-server','./src/index.js'], //webpack-hot-dev-server/client
},
output: {
filename: '[name].bundle.js',
path: path.resolve(__dirname, 'dist'),
publicPath: '/'
},
module: {
rules: [
{
test: /\.(js|jsx)$/,
use: {
loader: 'babel-loader',
},
exclude: /node_modules/
},
{
test: /\.css$/,
use: [
'style-loader',
'css-loader'
]
},
{
test: /\.(png|svg|jpg|gif)$/,
use: [
'file-loader'
]
}
]
},
plugins: [
new CleanWebpackPlugin(['dist']),
new HtmlWebpackPlugin({
title: 'webpack4',
template: './index.html'
}),
new webpack.HotModuleReplacementPlugin(),
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"development"'
}
}),
new webpack.DefinePlugin({
"__dev__": JSON.stringify(isPro)
}),
],
resolve: {
extensions: [".js", ".json", ".jsx", ".css", "less"],
},
// devServer: {
// publicPath: '/', //注意這里,相應看html的引用路徑為如果寫 /test/,那么引用就是 /test/+ 資源文件名
// contentBase: path.resolve(__dirname, 'dist'),
// historyApiFallback: true,
// hot: true,
// inline: true,
// open: true,
// noInfo: true
// }
};
入口文件index.js
import React from 'react';
import { render } from 'react-dom';
import AppRouter from './router.js'
import { Provider } from 'react-redux'
import { createStore } from 'redux'
import rootReducer from './configReducer'
const store = rootReducer()
import { hot } from 'react-hot-loader'
class Root extends React.Component {
render() {
return (
<Provider store={store}>
<AppRouter />
</Provider>
);
}
}
hot(module)(Root)
render(
<Root />,
document.getElementById('root')
);
入口文件reducer.js
import rootReducer from './reducers/index';
import { createStore, applyMiddleware, compose } from 'redux';
export default function configureStore(initialState) {
const Store = createStore(rootReducer, initialState);
if (module.hot) {
// Enable Webpack hot module replacement for reducers
module.hot.accept('./reducers', () => {
const nextRootReducer = require('./reducers/index');
Store.replaceReducer(nextRootReducer);
});
}
return Store;
}
我這邊配置熱更新的時候也是提示redux2.0升級提示。
按照github上面的配置后,修改文件后保存第一次還是出現(xiàn)錯誤提示
<Provider> does not support changing `store` on the fly. It is most likely that you see this error because you updated to Redux 2.x and React Redux 2.x which no longer hot reload reducers automatically. See https://github.com/reactjs/react-redux/releases/tag/v2.0.0 for the migration instructions.
但是只有第一次保存的時候才會出現(xiàn)錯誤提示,后面修改文件在保存就不會了。而且redux中的數(shù)據(jù)還是存在
文檔地址https://github.com/reduxjs/re...
import { createStore } from 'redux';
import rootReducer from '../reducers/index';
export default function configureStore(initialState) {
const store = createStore(rootReducer, initialState);
if (module.hot) {
// Enable Webpack hot module replacement for reducers
module.hot.accept('../reducers', () => {
const nextRootReducer = require('../reducers/index');
store.replaceReducer(nextRootReducer);
});
}
return store;
}
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