关于mobx:reactmobx6使用案例

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脚手架 create-react-app

一、装置
//npm yarn 随需要，尽量不要混用，混用有些资源可能会呈现掉包

yarn add mobx
yarn add mobx-react


// 版本号
"mobx": "^6.3.2",
"mobx-react": "^7.2.0",

二、配置package.json
1.把暗藏的webpack裸露进去，开释之前记得请先提交代码 git commit 一次

yarn run eject

2.装置@babel/plugin-proposal-decorators 插件 必须的

yarn add @babel/plugin-proposal-decorators

 3.批改增加 package.json配置 （手动）

"babel": {
    "plugins": [
        ["@babel/plugin-proposal-decorators", {"legacy": true}]
    ],
    "presets": [
        "react-app"
    ]
}

三、定义mobx的store
1.目录机构(mobx反对多个多个状态模块)

stores
—– auth.js 模块1

—– test.js 模块2
—– index.js 总入口

2.模块 auth.js

// auth.js和test.js 截然不同 展现auth.js做案例
// @action.bound 和  @action 区别 https://cn.mobx.js.org/refguide/action.html
import { observable, action, computed } from "mobx";
import { makeObservable} from "mobx";

export class AuthStore {
    // 定义变量
    @observable name = 'zhangsan000';
    @observable sex =  '男';
    @observable userObj = {
        name: 'zhangsan000',
        age: 233,
        token: '12345689'
    }

    // 初始化
    constructor() {
        // mobx6版本当前 必须得在初始化加makeObservable
        makeObservable(this);
        
    }

    // 动作(bound 能够主动绑定this 避免this 指向扭转)
    @action.bound
    setName(v) {
        console.log('触发action');
        this.name = v;
        
    }
    @action
    setUserObj(obj) {
        this.userObj = obj;
    }

    // 计算属性
    @computed get titleName(){
        return this.name+'___111';
    }
    
    
}

3.定义导出进口index.js

import { AuthStore } from "./auth";
import { TestStore } from "./test";

export const store = {
    authStore: new AuthStore(),
    testStore: new TestStore()
};

4.在react 工程入口 导入 

import { store } from  './store/index';
import { Provider} from 'mobx-react';

ReactDOM.render(
  <React.StrictMode>
    <Provider store = {store}>
      <App  />
    </Provider>
  </React.StrictMode>,
  document.getElementById('root')
);

四、在页面中应用mobx,并且通过action 扭转mobx

import React, { Component, PureComponent } from "react";
import { observer, inject } from 'mobx-react';

@inject( 'store')
@observer
class Index extends PureComponent {
    
    constructor(props) {
        super(props);
        console.log(this.props);
        this.state = {  };
    }
    render() {
        const { authStore, testStore } = this.props.store;
        return (
            <div>
                {authStore.name}/
                
                {testStore.name}/

                {authStore.titleName}
                <br />
                <button onClick = { () => { 
                    authStore.setName(new Date().getTime()); 
                } }>点击按钮触发action</button>
            </div>
        );
    }
}

export default Index;

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