vue-router的使用方法以及含参数的配置

Posted 犹记惊鸿照影(JS)

tags:

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html

router-link:跳转链接

参数to:就是跳转到的链接位置

二层链接 eg:

<router-link to="/users/evan">/users/evan</router-link>

需要配置所对应的对应的children
children所对应的参数
path:可分我固定的参数url 和带参数的 区别于 :(冒号)
name:对应的参数的模块名称(动态传参数)

component:可以传多个组件
eg:
{ path: \'/\',
// a single route can define multiple named components
// which will be rendered into <router-view>s with corresponding names.
components: {
default: Foo,
a: Bar,
b: Baz
}
},

:to="{ name: \'user\', params: { username: \'evan\' }, query: { foo: \'bar\' }}"

参数说明params 对应的是children的path的值 ,to中的name为vueRouter中的name
当要传多个参数时
{ path: \':username/:aaa\', name: \'user\', component: User }

也可以利用query传值
query: { foo: \'bar\' }

eg: path: \':username\'

redirect:链接直接指向指定的方向(重定向)
beforeEnter:
·
{ path: \'/dashboard\', component: Dashboard, beforeEnter: requireAuth },
function requireAuth (route, redirect, next) {
  if (!auth.loggedIn()) {
    redirect({
      path: \'/login\',
      query: { redirect: route.fullPath }
    })
  } else {
    next()
  }
}

 

使用props将组件和路由解耦:

在组件中使用$route会使之与其对应路由形成高度耦合,从而使组件只能在某些特定的url上使用,限制了其灵活性。

 


对应的参数的值的获取
{{$route.params.username1 }}
 { path: \'/users\', component: Users,
      children: [
        { path: \':username\', name: \'user\', component: User }
      ]
  }

eg:

 <ul>
        <li><router-link to="/">/</router-link></li>
        <li><router-link to="/" exact>/ (exact match)</router-link></li>

        <li><router-link to="/users">/users</router-link></li>
        <li><router-link to="/users" exact>/users (exact match)</router-link></li>

        <li><router-link to="/users/evan">/users/evan</router-link></li>
        <li><router-link to="/users/evan#foo">/users/evan#foo</router-link></li>
        <li>
          <router-link :to="{ path: \'/users/evan\', query: { foo: \'bar\' }}">
            /users/evan?foo=bar
          </router-link>
        </li>
        <li><!-- #635 -->
          <router-link :to="{ name: \'user\', params: { username: \'evan\' }, query: { foo: \'bar\' }}" exact>
            /users/evan?foo=bar (named view + exact match)
          </router-link>
        </li>
        <li>
          <router-link :to="{ path: \'/users/evan\', query: { foo: \'bar\', baz: \'qux\' }}">
            /users/evan?foo=bar&baz=qux
          </router-link>
        </li>

        <li><router-link to="/about">/about</router-link></li>

        <router-link tag="li" to="/about">
          <a>/about (active class on outer element)</a>
        </router-link>
      </ul>
const router = new VueRouter({
  mode: \'history\',
  base: __dirname,
  routes: [
    { path: \'/\', component: Home },
    { path: \'/about\', component: About },
    { path: \'/users\', component: Users,
      children: [
        { path: \':username\', name: \'user\', component: User }
      ]
    }
  ]
})

js:vue-router配置

router-view:组件的放置位置

对应的链接所对应的组件的配置

路由底下的子组件

{ path: \'/users\', component: Users,
      children: [
        { path: \':username\', name: \'user\', component: User }
      ]
    }

//组件

Vue.use(VueRouter)

const Home = { template: \'<div><h2>Home</h2></div>\' }
const About = { template: \'<div><h2>About</h2></div>\' }

const Users = {
  template: `
    <div>
      <h2>Users</h2>
      <router-view></router-view>
    </div>
  `
}

const User = { template: \'<div>{{ $route.params.username }}</div>\' }

 

==================分界线====================

案例:1

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
<div id="app">
    <h1>Hello App!</h1>
    <p>
        <!-- 使用 router-link 组件来导航. -->
        <!-- 通过传入 `to` 属性指定链接. -->
        <!-- <router-link> 默认会被渲染成一个 `<a>` 标签 -->
        <router-link to="/foo">Go to Foo</router-link>
        <router-link to="/bar">Go to Bar</router-link>
    </p>
    <!-- 路由出口 -->
    <!-- 路由匹配到的组件将渲染在这里 -->
    <router-view></router-view>
</div>
<script>
    var Foo = { template: \'<div>foo</div>\' }
var Home= { template:\'<div>Home</div>\' }
var Bar = { template: \'<div>bar</div>\' } // 2. 定义路由 // 每个路由应该映射一个组件。 其中"component" 可以是 // 通过 Vue.extend() 创建的组件构造器, // 或者,只是一个组件配置对象。 // 我们晚点再讨论嵌套路由。 var routes = [ { path: \'/\', component: Home}, { path: \'/foo\', component: Foo }, { path: \'/bar\', component: Bar } ] // 3. 创建 router 实例,然后传 `routes` 配置 // 你还可以传别的配置参数, 不过先这么简单着吧。 var router = new VueRouter({ routes // (缩写)相当于 routes: routes }) // 4. 创建和挂载根实例。 // 记得要通过 router 配置参数注入路由, // 从而让整个应用都有路由功能 var app = new Vue({ router, el:\'#app\' }) </script> </body> </html>

实现效果

=====================================

案例:2

path的二级链接固定参数

<div id="app">
    <h1>Data Fetching</h1>
    <ul>
    <li><router-link to="/">/</router-link></li>
    <li><router-link to="/user/even" exact>/users (exact match)</router-link></li>
</ul>
    <router-view class="view"></router-view>
</div>
<script>
    var Users = {
        template: \'<div><h2>Users</h2><router-view></router-view> </div>\'
    }
    var User = {
        template: \'<div>{{$route.params.username1 }}</div>\'
    }
    var Home = {
        template: \'<div>Home</div>\'
    }
    var router = new VueRouter({
        routes: [
            { path: \'/\', component: Home,},
            // 动态路径参数 以冒号开头
            { path: \'/user\', component: Users,
                children: [
                    { path: \':username1\', name: \'bbb\', component: User }
                ]}
        ]
    })
    new Vue({
        el:"#app",
        router,
        data:{
            name:111
        }
    })

二级链接动态参数

<div id="app">
    <h1>Data Fetching</h1>
    <ul>
    <li><router-link to="/">/</router-link></li>
    <li><router-link :to="{ name: \'bbb\', params: { username: name}}" exact>/users/evan?foo=bar (named view + exact match)
        </router-link>
    </li>
</ul>
    <router-view class="view"></router-view>
</div>
<script>
    var Users = {
        template: \'<div><h2>Users</h2><router-view></router-view> </div>\'
    }
    var User = {
        template: \'<div>{{$route.params.username }}</div>\'
    }
    var Home = {
        template: \'<div>Home</div>\'
    }
    var router = new VueRouter({
        routes: [
            { path: \'/\', component: Home,},
            // 动态路径参数 以冒号开头
            { path: \'/user\', component: Users,
                children: [
                    { path: \':username\', name: \'bbb\', component: User }
                ]}
        ]
    })
    new Vue({
        el:"#app",
        router,
        data:{
            name:111
        }
    })
</script>

实现效果

 

注意与上一个实例进行对比发现链接的地址并没有发生改变,刷新后会返回首页

 

如何解决这个问题呢

==============案例=======================

<div id="app">
    <h1>Data Fetching</h1>
    <ul>
    <li><router-link to="/">/</router-link></li>
    <li><router-link :to=\'{name:"user", params:{ id:111 }}\'>111</router-link>
    </li>
</ul>
    <router-view class="view"></router-view>
</div>
<script>
    var Users = {
        template: \'<div><h2>Users</h2><div>{{$route.params.id}}</div></div>\'
    }
    var Home = {
        template: \'<div>Home</div>\'
    }
    var router = new VueRouter({
        routes: [
            { path: \'/\', component: Home,},
            // 动态路径参数 以冒号开头
            { path: \'/user/:id\', name:\'user\', component: Users}
        ]
    })
    new Vue({
        el:"#app",
        router,
        data:{
            name:111
        }
    })
</script>

====================案例传多个组件==============================

<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
<div id="app">
    <h1>Named Views</h1>
    <ul>
        <li><router-link to="/">/</router-link></li>
        <li><router-link to="/other">/other</router-link></li>
    </ul>
    <router-view class="view one"></router-view>
    <router-view class="view two" name="a"></router-view>
    <router-view class="view three" name="b"></router-view>
</div>
<script>

    var Foo = { template: \'<div>foo</div>\' }
    var Bar = { template: \'<div>bar</div>\' }
    var Baz = { template: \'<div>baz</div>\' }

    var router = new VueRouter({
        mode: \'history\',
        routes: [
            { path: \'/\',
                // a single route can define multiple named components
                // which will be rendered into <router-view>s with corresponding names.
                components: {
                    default: Foo,
                    a: Bar,
                    b: Baz
                }
            },
            {
                path: \'/other\',
                components: {
                    default: Baz,
                    a: Bar,
                    b: Foo
                }
            }
        ]
    })
    // 4. 创建和挂载根实例。
    // 记得要通过 router 配置参数注入路由,
    // 从而让整个应用都有路由功能
    var app = new Vue({
        router,
        el:\'#app\'
    })
</script>

 

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