ReactJS 的 model的属性 effects 的三个参数:

转载：https://blog.csdn.net/ohmyauthentic/article/details/53543441

effects 有三个参数:

put

用于触发 action 。

yield put({ type: 'todos/add', payload: 'Learn Dva' });

call

用于调用异步逻辑，支持 promise 。

const result = yield call(fetch, '/todos');

select

用于从 state 里获取数据。

const todos = yield select(state => state.todos);

基于 action 进行页面跳转

import { routerRedux } from 'dva/router';// Inside Effects
yield put(routerRedux.push('/logout'));// Outside Effects
dispatch(routerRedux.push('/logout'));// With query
routerRedux.push({pathname: '/logout',query: {page: 2,},
});

除 push(location) 外还有更多方法，详见这里

示例如下：

  state: {isLogin: false,loginfail:false,},subscriptions: {setup({ dispatch, history }) {history.listen(location => {if (location.pathname.includes('app')) {dispatch({type: 'loginhook',});}});},},effects: {* login({ payload },{call, put}) {const { data } = yield call(login, payload);if (data && data.success) {    yield put({type: 'checklogin',payload:{isLogin:true,}});yield put(routerRedux.push('/app/users'));}else{yield put({type: 'loginfail',payload:{loginfail:true,}});}},* loginhook({ payload },{
   select,call, put}){const isLogin = yield select(({session}) => session.isLogin);console.log('logincheck',isLogin);if(isLogin === false){yield put((routerRedux.push('/login')));}},},reducers: {checklogin(state,action) {return {
   ...state,isLogin:action.payload.isLogin };},loginfail(state,action) {return {
   ...state, loginfail:action.payload.loginfail};},}