1.路由的传参

1.查询字符串

/user/regist?uname=jack&upwd=123"

接收

{{$route.query}}

2.rest风格传参

/user/login/rose/456   栽培置路由中{path"login/:uname/:upwd"}

接收

{{$route.params}}

例：

var Home={
        template:`
        <div>这是首页</div>
        `
    }
    var User={
        template:`
        <div>
         这是用户页
         <p>
         <router-link to="/user/regist?uname=jack&upwd=123">注册</router-link>
         </p>
         <p>
         <router-link to="/user/login/rose/456">登录</router-link>
         </p>
         <router-view></router-view>
        </div>
        `
    }
    //查询字符串
    var Regist={
        template:`
        <div>
         <h1>这是注册页</h1>
         <a href="">{{$route.query}}</a>
         <a href="">uname:{{$route.query.uname}}</a>
         <a href="">upwd:{{$route.query.upwd}}</a>
        </div>

        `
    }
    //rest风格传参
    var Login={
        template:`
        <div>
          <h1>这是登录页</h1>
         <a href="">{{$route.params}}</a>
         <a href="">{{$route.params.uname}}</a>
         <a href="">{{$route.params.upwd}}</a>
        </div>

        `
    }
    const routes=[
        {path:"/",component:Home},
        {path:"/home",component:Home},
        {path:"/user",
            component:User,
            children:[
                {path:"regist",component:Regist},
                {path:"login/:uname/:upwd",component:Login}
            ]
        }
    ]
    const router=new VueRouter({
        routes:routes,
    })
    new Vue({
        el:"#app",
        router:router
    })

效果如图：

Image 1.png Image 3.png

2.axios

1.0 vue-resource
2.0 axios库
axios是vue中的ajax
ajax:前端页面和后台数据做交互
建json文件
发送数据的两种方式：get post

http-server

安装命令:
npm install http-server -g
开始一个服务：
http-server

例：

json文件中的内容

[
    {
        "num":1,
        "pname":"apple",
        "price":3,
        "count":2,
        "sub":6
    },
    {
        "num":2,
        "pname":"pear",
        "price":4,
        "count":3,
        "sub":12
    },
    {
        "num":3,
        "pname":"banana",
        "price":5,
        "count":4,
        "sub":20
    }
]

JS部分

<script src="js/vue.js"></script>
<script src="js/vue-router.js"></script>
<script src="js/axios.js"></script>
<script>
    var Home={
        template:`
        <h1>这是首页</h1>
    `
    }
    var User={
        template:`
        <div>
        <h1>这是用户页</h1>
        <table border="1" cellspacing="0">
                 <thead>
                     <tr>
                       <th>编号</th>
                       <th>名称</th>
                       <th>单价</th>
                       <th>数量</th>
                       <th>小计</th>
                     </tr>
                 </thead>
                <tbody>
                 <tr v-for="value in list">
                    <td>{{value.num}}</td>
                    <td>{{value.pname}}</td>
                    <td>{{value.price}}</td>
                    <td>{{value.count}}</td>
                    <td>{{value.sub}}</td>
                 </tr>
             </tbody>
              </table>
        </div>
    `,
        data:function(){
            return{
                list:null
            }
        },
        mounted:function(){
            var self=this;
            axios({
                method:"get",
                url:'fruit.json'
            }).then(function(resp){
                console.log(resp.data)
                self.list=resp.data;
            }).catch(function(err){
                console.log(err)
            })
        }
    }
    const routes=[
        {path:'/',component:Home},
        {path:'/home',component:Home},
        {path:'/user',component:User}
    ]
    const router=new VueRouter({
        routes:routes,
        linkActiveClass:'active'
    })

    new Vue({
        el:'#app',
        router:router

    })
</script>

效果如图：

Image 4.png