react redux及redux持久化示例详解

import FilmRouter from './FilmRouter/index'
import {Provider} from 'react-redux'
import store from './FilmRouter/views/redux/store';
ReactDOM.render(
    <Provider store={store}>
        <FilmRouter />
    </Provider>
    , document.getElementById('root')
);

import React, { Component } from 'react'
import FRouter from './Router/ReactRouter'
import Tabbar from './components/Tabbar'
import { connect } from 'react-redux'
// import store from './views/redux/store'
// let unSubscribe
class Index extends Component {
  state = {
    // list: store.getState().TabbarReducer.list
  }
  // store.subscribe 订阅
  componentDidMount() { 
    console.log(this.props)
    // store.subscribe(() => {
    //   console.log('订阅', store.getState()) 
    //   this.setState({
    //     isShow: store.getState().TabbarReducer.flag
    //   })
    // })
    // unSubscribe = store.subscribe(() => {
    //   this.setState({
    //     list: store.getState().TabbarReducer.list
    //   })
    // })
  }
  // componentWillUnmount() {
  //   unSubscribe()
  // }
  render() {
    return (
        <div>
            <FRouter>
                {this.props.isShow && <Tabbar></Tabbar>}
            </FRouter>
        </div>
    )
  }
}
const mapStateToProps = (state) => {
  return {
    a: 1,
    b: 2,
    isShow: state.TabbarReducer.flag
  }
}
export default connect(mapStateToProps)(Index)

import React, {useEffect} from 'react'
import { hide, show } from './redux/actionCreator/TabbarActionCreator'
// import store from './redux/store'
import {connect} from 'react-redux'
function Detaill(props) {
  console.log(props.match.params.filmId) // 第一种方式路由获取参数 
//   console.log(props.location.query.filmId) // 第二种方式路由获取参数  
//   console.log(props.location.state.filmId) // 第三种方式路由获取参数  
  let {show, hide} = props
  useEffect(() => {
    console.log('创建')
    // store.dispatch(hide())
    hide()
    return () => {
      console.log('销毁')
      // store.dispatch(show())
    show()
    }
  },[show,hide])
  return (
    <div>Detaill</div>
  )
}
const mapDispatchToProps = {
  show,
  hide
}
// connect接收两个参数，第一个是属性，第二个是回调函数
export default connect(null, mapDispatchToProps)(Detaill);

npm i redux-persist

import { applyMiddleware, combineReducers, createStore, compose } from "redux";
import TabbarReducer from "./reducers/TabbarReducer";
import reduxThunk from "redux-thunk"
import reduxPromise from "redux-promise"
import { persistStore, persistReducer } from 'redux-persist'
import storage from 'redux-persist/lib/storage' // defaults to localStorage for web
const persistConfig = {
    key: 'TabbarReducer',
    storage,
    // blacklist: ['TabbarReducer'] // navigation will not be persisted  黑名单
    whitelist: ['TabbarReducer'] // only navigation will be persisted  白名单
  }
const reducer = combineReducers({
    TabbarReducer
})
const persistedReducer = persistReducer(persistConfig, reducer)
const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;
const store = createStore(persistedReducer, /* preloadedState, */ composeEnhancers(
    applyMiddleware(reduxThunk, reduxPromise)
));
let persistor = persistStore(store)
export {store, persistor}; 

import FilmRouter from './FilmRouter/index'
import {Provider} from 'react-redux'
import {store, persistor} from './FilmRouter/views/redux/store';
import { PersistGate } from 'redux-persist/integration/react';
ReactDOM.render(
    <Provider store={store}>
        <PersistGate loading={null} persistor={persistor}>
            <FilmRouter />
        </PersistGate>
    </Provider>
    , document.getElementById('root')
);