vue-router实现组件间的跳转---参数传递

四、通过VueRouter来实现组件之间的跳转：参数的传递

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>