react中使用redux-persist做持久化储存的过程记录

npm install @reduxjs/toolkit redux-persist redux react-redux

// store.jsx
import { configureStore, getDefaultMiddleware } from "@reduxjs/toolkit";
import { persistStore, persistReducer } from "redux-persist";
import storage from "redux-persist/lib/storage"; // 选择持久化存储引擎，如 localStorage 或 AsyncStorage
import rootReducer from "./reducers/index"; // 导入您的根 reducer
// 配置持久化设置
const persistConfig = {
  key: "root", // 存储的键名
  storage, // 持久化存储引擎
  // 可选的配置项，如白名单、黑名单等 选其一就好了
  // blacklist:['test'], // 只有 test 不会被缓存
  // whitelist: ["test"], // 只有 test 会被缓存
};
const persistedReducer = persistReducer(persistConfig, rootReducer);
const store = configureStore({
  reducer: persistedReducer,
  middleware: getDefaultMiddleware({
    serializableCheck: false, // 禁用严格模式
  }),
});
const persistor = persistStore(store);
export { store, persistor };

// main.jsx
import React from "react";
import ReactDOM from "react-dom/client";
import { Provider } from "react-redux";
import { PersistGate } from "redux-persist/integration/react";
import { store, persistor } from "./redux/store";
import App from "./App";
ReactDOM.createRoot(document.getElementById("root")).render(
  <React.StrictMode>
    <Provider store={store}>
      <PersistGate loading={null} persistor={persistor}>
        <App />
      </PersistGate>
    </Provider>
  </React.StrictMode>
);

// reducers/index.jsx
import { combineReducers } from "redux";
import userReducer from "./user";
import baseReducer from "./base";
const rootReducer = combineReducers({
  user: userReducer,
  base: baseReducer,
});
export default rootReducer;

// reducers/user.jsx
import { createSlice } from "@reduxjs/toolkit";
const initialState = {
  token: "默认值token",
  isLogin: false,
};
const user = createSlice({
  name: "user",
  initialState,
  reducers: {
    setToken: (state, action) => {
      // 将传入的值设置为 token 的新值
      state.token = action.payload;
    },
  },
});
export const { setToken } = user.actions;
export default user.reducer;

// App.jsx
import { useSelector, useDispatch } from "react-redux";
import { setToken } from "./redux/reducers/user";
const App = () => {
  const user = useSelector((state) => state.user);
  // 在页面组件中使用 useDispatch 获取 dispatch 函数，用于派发 action
  const dispatch = useDispatch();
  const setTokenFun = () => {
    dispatch(setToken("一个新的token"));
  };
  return (
    <>
      <p>token=====：{user.token}</p>
      <Button type="primary" onClick={setAddressFun}>
        Set Token
      </Button>
    </>
  );
};
export default App;

$ npm install redux-persist --save

/*
	该文件专门用于暴露一个store对象，整个应用只有一个store对象
*/
//引入createStore，专门用于创建redux中最为核心的store对象
import { createStore, applyMiddleware ,combineReducers} from 'redux'
//引入redux-persist持久化
import { persistStore, persistReducer } from 'redux-persist'
// import localStorage from 'redux-persist/lib/storage'
import storage from 'redux-persist/lib/storage/index'
//引入为Count组件服务的reducer
import incrementReducer from './incrementReducer';
import personReducer from './personReducer';
//引入中间件 可传入action为函数
import thunk from 'redux-thunk';
// 引入redux-devtools-extension 第三方可视化redux的工具
import {composeWithDevTools} from 'redux-devtools-extension'
// import {composeWithDevTools} from 'redux-devtools-extension'
//实现persist数据持久化
const config = {
  key: 'root',
  storage:storage, //引入的storage是存在local或session
}
//里面保存的是redux完整的key和value 在mapStateToProps调动key
const allReducer = combineReducers({
  incrementReducer,
  personReducer
})
const store = createStore(persistReducer(config,allReducer),composeWithDevTools(applyMiddleware(thunk)))
persistStore(store)
export default store
//正常版暴露store,thunk是保证action可以接收函数
// export default createStore(reducer, applyMiddleware(thunk))