Vue 同步异步存值取值实现案例

import Vue from 'vue'
import Vuex from 'vuex'
import state from './state'
import getters from './getters'
import actions from './actions'
import mutations from './mutations'

const store = new Vuex.Store({
 state, // 共同维护的一个状态，state里面可以是很多个全局状态
 getters, // 获取数据并渲染
 actions, // 数据的异步操作
 mutations // 处理数据的唯一途径，state的改变或赋值只能在这里
})

export default store ///导出

export default {
 // 凡是工程里的变量都定义到这里来，同时可以分类管理
 resturantName: '飞鸽传书'

}

export default{
    getResturantName: (state) => {
     return state.resturantName;

    }
}

export default {
 setResturantName: (state, payload) => {
 state.resturantName = payload.resturantName;
 return this.$store.state.resturantName;
 }
}

export default{
 setResturantNameAsyc: (context, payload) => {
 console.log('xxx')
 setTimeout(()=>{
  console.log('yyy')
  context.commit('setResturantName', payload); //Action提交的是mutation
 },3000);
 console.log('zzz')
 },
 doAjax:(context, payload) => {
 // 在vuex里面不能使用vue实例
 let _this = payload._this;
 let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
 // let url = 'http://localhost:8080/T216_SSH/vue/userAction_login.action';
 console.log(url);
 _this.axios.get(url, {}).then((response) => {
  console.log('doAjax.........')
  console.log(response);
 }).catch(respone)=>{
  console.log(response);
 } 
 }
} 

<template>
 <div>
 <h3 style="margin: 60px;">第一个Vuex页面{{title}}</h3>
 <button @click="changTitle">餐馆易主</button>
 <button @click="changTitleAsync">两个月后餐馆易主</button>
 <button @click="changTitleAsync">测试Vuex中使用ajax</button>
 </div>
</template>

<script>
 export default {
 data() {
  return {
  
  };
 },
    
 methods: {
  changTitle() {
  this.$store.commit('setResturantName', {
  });
  },
  changTitleAsync() {
  this.$store.dispatch('setResturantNameAsync', {
   resturantName: '小李飞刀羊肉馆'
  });
  },
  doAjax(){
  this.$store.dispatch('doAjax',{
   _this:this
  })
  }
 },
 computed: {
  title() {
  return this.$store.getters.getResturantName;
  }
 },
 created(){
  this.title=this.$store.state.resturantName;
 } 
 }
</script>

<style>
</style>

<template>
 <div>
 <h3 style="margin: 60px;">第二个Vuex页面{{title}}</h3>
 this.$store.commit(type,payload); 
 </div> 
</template>

<script>
 export default{
 data(){
  return{
  
  };
 },
 created(){
  this.title=this.$store.state.resturantName;
 }
 }
</script>

<style>
</style>