使用vuex解决刷新页面state数据消失的问题记录

created(){
 //在页面刷新时将vuex里的信息保存到localStorage里
  window.addEventListener("beforeunload",()=>{
   localStorage.setItem("messageStore",JSON.stringify(this.$store.state))
  })
  
 //在页面加载时读取localStorage里的状态信息
  localStorage.getItem("messageStore") && this.$store.replaceState(Object.assign(this.$store.state,JSON.parse(localStorage.getItem("messageStore"))));
 }

import createPersistedState from "vuex-persistedstate"
const store = new Vuex.Store({
 // ...
 plugins: [createPersistedState()]
})

import createPersistedState from "vuex-persistedstate"
const store = new Vuex.Store({
 // ...
 plugins: [createPersistedState({
  storage: window.sessionStorage,
  reducer(data) {
   return {
   // 设置只储存state中的myData
   myData: data.myData
  }
  }
 })]