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1、React第三方组件5(状态管理之Redux的使用①简单使用)---2018.03.20
2、React第三方组件5(状态管理之Redux的使用②TodoList上)---2018.03.21
3、React第三方组件5(状态管理之Redux的使用③TodoList中)---2018.03.22
4、React第三方组件5(状态管理之Redux的使用④TodoList下)---2018.03.23
5、React第三方组件5(状态管理之Redux的使用⑤异步操作)---2018.03.26
6、React第三方组件5(状态管理之Redux的使用⑥Redux DevTools)---2018.03.27
开发环境:Windows 8,node v8.9.1,npm 5.5.1,WebStorm 2017.2.2
这里我们需要用到 redux-thunk
npm i -S redux-thunk
1、我们先复制一份redux4到redux5,并修改redux下Index.jsx
2、新建 store.js
import {createStore, applyMiddleware} from 'redux';
import thunk from 'redux-thunk'
import reducer from './reducer'
const middleware = [thunk];
const store = createStore(reducer, applyMiddleware(...middleware));
export default store;
3、新建action.js
import apiRequestAsync from '../../../../public/js/apiRequestAsync';
export const postList = () => async (dispatch) => {
let todoList = await apiRequestAsync.post('todoList');
dispatch({type: 'POST_LIST', list: todoList.list});
};
4、修改reducer.js
case 'POST_LIST':
list = action.list;
return {list};
完整代码
export default (state = {
list: []
}, action) => {
let list = state.list;
switch (action.type) {
case 'POST_LIST':
list = action.list;
return {list};
case 'ADD':
if (!action.title) {
alert('不能为空');
return state;
}
list.push({id: state.list.length + 1, title: action.title, status: 1});
return {list};
case 'EDIT':
let {id, status} = action.obj;
list.find(data => data.id === id).status = status;
return {list};
default:
return state;
}
};
5、修改 Index.jsx 完整代码如下
import React from 'react';
import {Provider, connect} from 'react-redux';
import store from './store'
import List from './List'
import {postList} from './action'
class Index extends React.Component {
componentDidMount() {
this.props.dispatch(postList());
}
render() {
let props = this.props;
return (
<div className="todoList">
<input type="text" ref="todoInput"/>
<button onClick={() => this.props.dispatch({type: 'ADD', title: this.refs['todoInput'].value})}>添加
</button>
<div className="cont">
<div className="box">
全部
<List type={0} {...props}/>
</div>
<div className="box">
未删除
<List type={1} {...props}/>
</div>
<div className="box">
已删除
<List type={2} {...props}/>
</div>
</div>
</div>
);
}
}
const mapStateToProps = state => ({storeState: state});
const Main = connect(
mapStateToProps
)(Index);
export default () =>
<Provider store={store}>
<Main/>
</Provider>
;
6、查看浏览器