四、通过VueRouter来实现组件之间的跳转：参数的传递
login ---用户名--->main
①明确发送方和接收方
②配置接收方的路由地址
{path:'/myTest',component:TestComponent}
-->
{path:'/myTest/:id',component:TestComponent}
③接收方获取传递来的数据
this.$route.params.id
④跳转的时候，发送参数
this.$router.push('/myTest/20')
<router-link :to="'/myTest'+id">跳转</router-link>
<!doctype html> <html> <head> <meta charset="UTF-8"> <title>传参</title> <script src="js/vue.js"></script> <script src="js/vue-router.js"></script> </head> <body> <div id="container"> <p>{{msg}}</p> <!--指定容器 --> <router-view></router-view> </div> <script> //创建主页面组件 var myMain = Vue.component("main-component",{ //保存登录传递过来的数据 data:function(){ return { uName:'' } }, template:` <div> <h1>主页面用户名:{{uName}}</h1> </div> `, //挂载该组件时自动拿到数据 beforeMount:function(){ //接收参数 console.log(this.$route.params); this.uName = this.$route.params.myName ; } }) //创建登录页面组件 var myLogin = Vue.component("login-component",{ //保存用户输入的数据 data:function(){ return { userInput:"" } }, methods:{ toMain:function(){ //跳转到主页面，并将用户输入的名字发送过去 this.$router.push("/main/"+this.userInput); console.log(this.userInput); } }, template:` <div> <h1>登录页面</h1> <input type="text" v-model="userInput" placeholder="请输入用户名"> <button @click="toMain">登录到主页面</button> <br> <router-link :to="'/main/'+userInput">登录到主页面</router-link> </div> ` }) var NotFound = Vue.component("not-found",{ template:` <div> <h1>404 Page Not Found</h1> <router-link to="/login">返回登录页</router-link> </div> ` }) //配置路由词典 const myRoutes = [ {path:"",component:myLogin}, {path:"/login",component:myLogin}, //注意冒号,不用/否则会当成地址 {path:"/main/:myName",component:myMain}, //没有匹配到任何页面则跳转到notfound页面 {path:"*",component:NotFound} ] const myRouter = new VueRouter({ routes:myRoutes }) new Vue({ router:myRouter, el:"#container", data:{ msg:"Hello VueJs" } }) // 注意,路由地址 </script> </body> </html>
<!doctype html> <html> <head> <meta charset="UTF-8"> <title>传参练习</title> <script src="js/vue.js"></script> <script src="js/vue-router.js"></script> </head> <body> <div id="container"> <p>{{msg}}</p> <!-- --> <router-view></router-view> </div> <script> //创建产品列表组件 var myList = Vue.component("product-list",{ //保存产品列表的数据 data:function(){ return{ productList:["苹果","华为","三星","小米","vivo"] } }, template:` <div> <h4>这是列表页</h4> <ul> <li v-for="(tmp,index) in productList"> //将index传递过去 <router-link v-bind:to="'/detail/'+index">{{tmp}}</router-link> </li> </ul> </div> ` }) //详情页组件 var myDetail = Vue.component("product-detail",{ //保存传递过来的index data:function(){ return{ myIndex:"" } }, //在挂载完成后,将接收到的index赋值给myIndex mounted:function(){ this.myIndex = this.$route.params.id; }, template:` <div> <h4>这是详情页</h4> <p>这是id为：{{myIndex}}的产品</p> </div> ` }) //页面找不到的时候 var NotFound = Vue.component("not-found",{ template:` <div> <h1>404 Page Not Found</h1> </div> ` }) // 配置路由词典 const myRoutes = [ {path:"",component:myList}, {path:"/list",component:myList}, {path:"/detail/:id",component:myDetail}, {path:"*",component:NotFound}, ] const myRouter = new VueRouter({ routes:myRoutes }) new Vue({ router:myRouter, el:"#container", data:{ msg:"Hello VueJs" } }) </script> </body> </html>