From a security perspective, the safest thing to do when logging a user out is to reset all persistent state (e.x. cookies, localStorage, IndexedDB, Web SQL, etc) and do a hard refresh of the page using window.location.reload(). It's possible a sloppy developer accidentally or intentionally stored some sensitive data on window, in the DOM, etc. Blowing away all persistent state and refreshing the browser is the only way to guarantee no information from the previous user is leaked to the next user.

(当然，作为共享计算机上的用户，你应该使用“私人浏览”模式，自己关闭浏览器窗口，使用“清除浏览数据”功能，等等，但作为开发人员，我们不能期望每个人都总是那么勤奋)

我在使用typescript时的解决方案，建立在Dan Abramov的答案之上(redux类型使得不可能将undefined作为第一个参数传递给reducer，所以我将初始根状态缓存在一个常量中):

// store

export const store: Store<IStoreState> = createStore(
  rootReducer,
  storeEnhacer,
)

export const initialRootState = {
  ...store.getState(),
}

// root reducer

const appReducer = combineReducers<IStoreState>(reducers)

export const rootReducer = (state: IStoreState, action: IAction<any>) => {
  if (action.type === "USER_LOGOUT") {
    return appReducer(initialRootState, action)
  }

  return appReducer(state, action)
}


// auth service

class Auth {
  ...

  logout() {
    store.dispatch({type: "USER_LOGOUT"})
  }
}

简单回答一下丹·阿布拉莫夫的问题:

const rootReducer = combineReducers({
    auth: authReducer,
    ...formReducers,
    routing
});


export default (state, action) =>
  rootReducer(action.type === 'USER_LOGOUT' ? undefined : state, action);

丹·阿布拉莫夫的回答帮我破案了。然而，我遇到了一个案例，并不是整个州都需要清理。所以我是这样做的:

const combinedReducer = combineReducers({
    // my reducers 
});

const rootReducer = (state, action) => {
    if (action.type === RESET_REDUX_STATE) {
        // clear everything but keep the stuff we want to be preserved ..
        delete state.something;
        delete state.anotherThing;
    }
    return combinedReducer(state, action);
}

export default rootReducer;

为什么不直接使用return module.exports.default();)

export default (state = {pending: false, error: null}, action = {}) => {
    switch (action.type) {
        case "RESET_POST":
            return module.exports.default();
        case "SEND_POST_PENDING":
            return {...state, pending: true, error: null};
        // ....
    }
    return state;
}

注意:确保你设置动作默认值为{}，你是可以的，因为你不想在检查动作时遇到错误。在switch语句中输入。

你可以通过将此代码添加到动作文件中来清空减速器的数据，

首先导入所有类型:

import * as types from './types';

将此代码添加到注销操作

for(let key of Object.values(types)) {
        dispatch({ type: key, payload: [] });
    }