redux-thunk通过对dispatch进行升级，让dispatch可以接收函数
redux-thunk可以将异步逻辑放在actionCreator里面
redux-saga和redux-thunk作用类似
store action的中间
redux-saga提供许多api put takeEvey takeLast ..
redux-thunk 只是让dispatch 可以接收函数
store.js 配置使用redux-saga
const sagaMiddleware = createSagaMiddleware()
// mount it on the Store
const store = createStore(
reducer,
applyMiddleware(sagaMiddleware)
)
// then run the saga
sagaMiddleware.run(mySaga)
export default store
saga.js 将请求抽到saga.js中
function* fetchInitList(action) {
try{
const res = yield axios.get('/apis/getMv');
const action = initItem(res.data)
yield put(action);
}catch(e){
console.log("网络请求失败！")
}
}
function* mySaga() {
// yield takeLatest("USER_FETCH_REQUESTED", fetchUser);
yield takeEvery(GET_INIT_List, fetchInitList);
}
export default mySaga;
使用
store.dispatch(getInitList())