1. <router-view name="a"></router-view>
有时候想同时 (同级) 展示多个视图，而不是嵌套展示
- 例如创建一个布局，有
sidebar(侧导航) 和main(主内容) 两个视图，这个时候就可以使用命名视图。你可以在界面中拥有多个单独命名的视图，而不是只有一个单独的出口。如果router-view没有设置名字，那么默认为default。
<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>
2. 对应的components 配置 (带上 s)
- 一个视图使用一个组件渲染，因此对于同个路由，多个视图就需要多个组件。确保正确使用
components配置 (带上 s)：
const router = new VueRouter({
routes: [
{
path: '/',
components: {
default: Foo,
a: Bar,
b: Baz
}
}
]
})
<!DOCTYPE html>
<html>
<head>
<title>vue-router</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.8/dist/vue.js"></script>
<script src="https://unpkg.com/vue-router@3.1.3/dist/vue-router.js"></script>
</head>
<body>
<div id="app">
<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>
const Foo = {
template: `<div class="Foo">
<h2>Foo</h2>
</div>`
};
const Bar = {
template: `<div class="Bar">
<h2>Bar</h2>
</div>`
};
const Baz = {
template: `<div class="Baz">
<h2>Baz</h2>
</div>`
};
const router = new VueRouter({
routes: [
{
path: "/",
components: {
default: Foo,
a: Bar,
b: Baz
}
}
]
});
const app = new Vue({
router,
el: "#app"
}).$mount("#app");
</script>
</body>
</html>
3. 使用命名视图创建嵌套视图
我们也可能使用命名视图创建嵌套视图。这时也需要命名用到的嵌套 router-view 组件。
- 以一个设置面板为例：
/settings/emails /settings/profile
+-----------------------------------+ +------------------------------+
| UserSettings | | UserSettings |
| +-----+-------------------------+ | | +-----+--------------------+ |
| | Nav | UserEmailsSubscriptions | | +------------> | | Nav | UserProfile | |
| | +-------------------------+ | | | +--------------------+ |
| | | | | | | | UserProfilePreview | |
| +-----+-------------------------+ | | +-----+--------------------+ |
+-----------------------------------+ +------------------------------+
Nav只是一个常规组件。UserSettings是一个视图组件。UserEmailsSubscriptions、UserProfile、UserProfilePreview是嵌套的视图组件。
UserSettings 组件的 <template> 部分应该是类似下面的这段代码：
<!-- UserSettings.vue -->
<div>
<h1>User Settings</h1>
<NavBar/>
<router-view/>
<router-view name="helper"/>
</div>
然后你可以用这个路由配置完成该布局：
{
path: '/settings',
// 你也可以在顶级路由就配置命名视图
component: UserSettings,
children: [{
path: 'emails',
component: UserEmailsSubscriptions
}, {
path: 'profile',
components: {
default: UserProfile,
helper: UserProfilePreview
}
}]
}
<!DOCTYPE html>
<html>
<head>
<title>vue-router</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.8/dist/vue.js"></script>
<script src="https://unpkg.com/vue-router@3.1.3/dist/vue-router.js"></script>
</head>
<body>
<div id="app">
<router-link to="/settings">settings</router-link>
<router-link to="/settings/emails">settings/emails</router-link>
<router-link to="/settings/profile">settings/profile</router-link>
<router-view></router-view>
</div>
<script>
Vue.component("NavBar", {
template: `<div class="NavBar">
<h2>NavBar</h2>
</div>`
});
const UserSettings = {
template: `<div>
<h1>User Settings</h1>
<NavBar/>
<router-view/>
<router-view name="helper"/>
</div>`
};
const UserEmailsSubscriptions = {
template: `<div class="UserEmailsSubscriptions">
<h2>UserEmailsSubscriptions</h2>
</div>`
};
const UserProfile = {
template: `<div class="UserProfile">
<h2>UserProfile</h2>
</div>`
};
const UserProfilePreview = {
template: `<div class="UserProfilePreview">
<h2>UserProfilePreview</h2>
</div>`
};
const router = new VueRouter({
routes: [
{
path: "/settings",
// 你也可以在顶级路由就配置命名视图
component: UserSettings,
children: [
{
path: "emails",
component: UserEmailsSubscriptions
},
{
path: "profile",
components: {
default: UserProfile,
helper: UserProfilePreview
}
}
]
}
]
});
const app = new Vue({
router,
el: "#app"
}).$mount("#app");
</script>
</body>
</html>
