mutation文件
import {
RECEIVE_PUBLICHTIT
} from './mutation-types'
//保证刷新页面数据不消失*
function storeLocalStore (state) {
window.localStorage.setItem("publicTit",JSON.st...
mutation文件
import {
RECEIVE_PUBLICHTIT
} from './mutation-types'
//保证刷新页面数据不消失*
function storeLocalStore (state) {
window.localStorage.setItem("publicTit",JSON.stringify(state));
}
export default {
[RECEIVE_PUBLICHTIT] (state,{title}){
state.publicTit = title
storeLocalStore(state)
}
}用到publicTit属性的组件
created(){
localStorage.getItem("publicTit")&&
this.$store.replaceState(JSON.parse(localStorage.getItem("publicTit")))
},在created()生命周期中进行取值操作，这时需要判断第一次加载项目的时，localStorage没有publicTit的信息，所以先判断一下
实现思路 让vuex中publicTit的状态和localStorage中保持一致（从localStorage中取值）
优化版：
需要调用属性的组件
created(){
//在页面加载时读取localStorage状态 复制对象是解决新vuex管理的状态中新添加的字段也可以存入localStorage中
localStorage.getItem("publicTit") && this.$store.replaceState(Object.assign(this.$store.state,JSON.parse(localStorage.getItem("publicTit"))));
//在页面刷新时将vuex里的信息保存到localStorage里，避免多次调用localStorage进行存储降低性能,beforeunload是在页面刷新之前调用
window.addEventListener("beforeunload",()=>{
localStorage.setItem("publicTit",JSON.stringify(this.$store.state))
})
}
