vue实现路由监听和参数监听

1、路由携带数据跳转routerAction(hideDisplays,data){switch(hideDisplays){case"pubAccountMenu":this.$router.push(

1、路由携带数据跳转

routerAction(hideDisplays, data) {
 switch (hideDisplays) {
 case "pubAccountMenu":
 this.$router.push({
 name: "AppAccountInfo",
 });
 break;
 //在菜单路由上存储各种需要信息
 case "publicDocInfoMenu": //菜单code: publicDocInfoMenu
 data.instanceInfo.active = 4 //标记已点击的标签页
 data.instanceInfo.fromMenu = true
 data.instanceInfo.editOrAdd = false;
 this.getUcMenuInfo(data.instanceInfo) //数据、对象等
 this.$router.push({
 name: "DocumentInfoMaint",
 params: {
 instanceInfo: data.instanceInfo,
 uuid: data.uuid,
 breadCrumb: data.instanceInfo.name,
 breadCrumbEn: En_Name,
 prefix: 'text.breadCrumb.MyUseCase', //面包屑信息
 prefixPath: '/MyApplications',
 breadPath: '/AppInfo/' + data.uuid,
 routeName:'AppInfo',
 prefixRouteName:'MyApplications',
 firstRoute:true
 }
 });
 break;
 }
}

2、路由监听

watch: {
 $route: function (to, from) {

 if (this.$route.params.instanceInfo) {
 // let data = JSON.parse(this.$route.params.instanceInfo);
 let isObject = this.$route.params.instanceInfo; //获取路由传过来的数据
 //判断数据是否为对象，如果不是，则解析并获取数据
 let data = isObject instanceof Object ? this.$route.params.instanceInfo : JSON.parse(this.$route.params.instanceInfo);
 this.currentProductId = data.uuid;
 this.solutionUuid = data.uuid;
 this.setValue(data)
 localStorage.setItem('SolutionInfo', JSON.stringify(data));
 } else if (localStorage.getItem("SolutionInfo")) {//在浏览器的本地存储中获取数据
 //一般数据在浏览器的本地存储中会以JOSN字符串的方式存储，所以要把数据转换成JSON对象来使用
 let data = JSON.parse(localStorage.getItem("SolutionInfo"));
 this.currentProductId = data.uuid;
 this.solutionUuid = data.uuid;
 this.setValue(data)
 }

 }
}

3、值监听

页面A：
 //定义要监听的对象
 <vm-register-table :param="param" :child-open-table="jumpOrDialog" />

 例如监听param：
 (1).若param为对象，则需要把它转换成JSON字符串
 let tenantParam = {
 tenantId:tenantId,
 isTerminals: this.jumpOrDialog.isTerminals
 }
 this.param = JSON.stringify(tenantParam);
 (2).若param为字符串，则不用做任何转换
 this.param = currentPage;

页面B：
 //1.注册监听对象
 props: ['childOpenTable','param'],
 
 //2.监听
 (1).
 watch:{
 param:function(oldValue){
 console.log("newValue++"+oldValue)
 let jumpOrDialog = JSON.parse(oldValue)
 console.log("jumpOrDialog==++"+jumpOrDialog)
 let isTerminal = jumpOrDialog.isTerminals 
 if(isTerminal){
 this.tenantId = jumpOrDialog.tenantId;
 }else{
 let userInfo = JSON.parse(localStorage.getItem("userInfo"))
 this.tenantId = userInfo.tenantId;
 }
 let vmData = {
 tenantId: this.tenantId,
 pageNum: this.pageNum,
 pageSize: this.pageSize
 }
 this.getAllVmRegister(vmData); 
 }
 }, 
 (2).
 watch:{
 param:function(oldValue){
 let pages = JSON.parse(oldValue)
 this.currentPage = pages;
 }
 }

以上这篇vue实现路由监听和参数监听就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。