react-redux

1.create-react-app reactredux(项目名称)

2.cd .\reactredux\ (进入项目目录)

3.npm i react-redux npm i redux-thunk npm i redux-devtools-extension npm i axios

4.项目目录结构

源码---------------------------------------------------------------------------------：

App.js

import React from 'react'
import { Provider } from 'react-redux'
import store from './redux/store'
import WithList from './container/WithList'
function App() {
  return (
    <Provider store={store}>
      <WithList></WithList>
    </Provider>
  )
}

export default App

index.js

import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';

ReactDOM.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>,
  document.getElementById('root')
);

constants.js

const GET_DATA = 'GET_DATA'
export { GET_DATA }

reducer.js

import { GET_DATA } from './constants'
let initState = {
  list: [],
}

function fn(state = initState, action) {
  switch (action.type) {
    case GET_DATA:
      return {
        ...state,
        list: action.data,
      }
    default:
      return state
  }
}
export default fn

action.js

import axios from 'axios'
import { GET_DATA } from './constants'

function getData(data) {
  return { type: GET_DATA, data }
}

function getDataAsync() {
  return async (dispatch) => {
    let res = await axios({
      method: 'GET',
      url: 'http://127.0.0.1:5000/test',
    })
    // console.log(res)
    dispatch(getData(res.data))
  }
}

export { getDataAsync }

store.js

import { createStore, applyMiddleware } from 'redux'
import { composeWithDevTools } from 'redux-devtools-extension'
import thunk from 'redux-thunk'
import reducer from './reducer'

export default createStore(
  reducer,
  process.env.NODE_ENV === 'development'
    ? composeWithDevTools(applyMiddleware(thunk))
    : applyMiddleware(thunk)
)

List.jsx

import React from 'react'
export default function List(props) {
  console.log(props.list)
  return (
    <div>
      <button
        onClick={() => {
          props.getDataAsync()
        }}>
        按钮
      </button>
      <ul>
        {props.list.map((item, index) => {
          return (
            <li key={index}>
              <h3>{item.name}</h3>
              <p>{item.age}</p>
              <p>{item.info}</p>
            </li>
          )
        })}
      </ul>
    </div>
  )
}

WhitList.jsx

import { connect } from 'react-redux'
import List from '../components/List'
import { getDataAsync } from '../redux/action'

export default connect(
  (state) => ({
    list: state.list,
  }),
  { getDataAsync }
)(List)

项目接口文件 juejin.cn/post/698499…