Vue Router

官网的例子

https://router.vuejs.org/zh/guide/#html

一、简单的Vue Router

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <App />
    </div>
    <script src="./js/vue.js"></script>
    <script src="./js/vue-router.js"></script>
    <script>
        const Foo = {
            data(){
                return {

                }
            },
            template: '<div>foo</div>' 
        }
        const Bar = {
            data(){
                return {
                    
                }
            },
            template: '<div>bar</div>' 
        }
        const router = new VueRouter({
            routes: [
                {path: '/foo', component: Foo},
                {path: '/bar', component: Bar}
            ]
        })
        // 注意:别忘记挂载
        let App = {
            router,
            data(){
                return {
                    msg:"测试",
                }
            },
            template: `
                <div>
                    <p>{{msg}}</p>
                    <p>
                        <router-link to="/foo">Go to Foo</router-link>
                        <router-link to="/bar">Go to Bar</router-link>    
                    </p>
                    <router-view></router-view>
                </div>
            `,

        }
        new Vue({
            el: "#app",
            data(){
                return{

                }
            },
            components:{
                App,
            }
        })
    </script>
</body>
</html>

 二、命名路由

注意:router-link 里的 to 要添加 v-bind,其它看官网

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <App />
    </div>
    <script src="./js/vue.js"></script>
    <script src="./js/vue-router.js"></script>
    <script>
        const Foo = {
            data(){
                return {

                }
            },
            template: '<div>foo</div>' 
        }
        const Bar = {
            data(){
                return {
                    
                }
            },
            template: '<div>bar</div>' 
        }
        const router = new VueRouter({
            routes: [
                {
                    path: '/foo',
                    name: 'foo', 
                    component: Foo
                },
                {
                    path: '/bar',
                    name: 'bar', 
                    component: Bar
                }
            ]
        })
        // 注意:别忘记挂载
        let App = {
            router,
            data(){
                return {
                    msg:"测试",
                }
            },
            // 注意: to前面添加 v-bind
            template: `
                <div>
                    <p>{{msg}}</p>
                    <p>
                        <router-link :to="{name: 'foo'}">Go to Foo</router-link>
                        <router-link :to="{name: 'bar'}">Go to Bar</router-link>    
                    </p>
                    <router-view></router-view>
                </div>
            `,

        }
        new Vue({
            el: "#app",
            data(){
                return{

                }
            },
            components:{
                App,
            }
        })
    </script>
</body>
</html>

三、重定向

1、重定向url

const router = new VueRouter({
    routes: [
        {
            path : '/',
            redirect: '/foo',
        },
        {
            path: '/foo',
            name: 'foo', 
            component: Foo
        },
        {
            path: '/bar',
            name: 'bar', 
            component: Bar
        }
    ]
})

2、重定向命名路由

const router = new VueRouter({
    routes: [
        {
            path : '/',
            redirect: {name: 'foo'},
        },
        {
            path: '/foo',
            name: 'foo', 
            component: Foo
        },
        {
            path: '/bar',
            name: 'bar', 
            component: Bar
        }
    ]
})

 四、动态路由匹配

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <App />
    </div>
    <script src="./js/vue.js"></script>
    <script src="./js/vue-router.js"></script>
    <script>
        const Foo = {
            data(){
                return {
                    uid: null,
                }
            },
            template: '<div>foo{{uid}}</div>',
            watch:{
                '$route' (to, from) {
                    // 对路由变化作出响应...发送ajax
                    console.log(to.params.id)
                    this.uid = to.params.id
                 }
            }
        }
        const router = new VueRouter({
            routes: [
                {
                    path: '/foo/:id',
                    name: 'foo', 
                    component: Foo
                }
            ]
        })
        // 注意:别忘记挂载
        let App = {
            router,
            data(){
                return {
                    msg:"测试",
                }
            },
            // 注意: to前面添加 v-bind
            // 关于参数的问题看官网的  命名路由
            template: `
                <div>
                    <p>{{msg}}</p>
                    <p>
                        <router-link :to="{name: 'foo', params:{id:1}}">Go to Foo 1</router-link>
                        <router-link :to="{name: 'foo', params:{id:2}}">Go to Foo 2</router-link>    
                    </p>
                    <router-view></router-view>
                </div>
            `
        }
        new Vue({
            el: "#app",
            data(){
                return{

                }
            },
            components:{
                App,
            }
        })
    </script>
</body>
</html>

 五、编程式导航

利用v-on 和函数

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <App />
    </div>
    <script src="./js/vue.js"></script>
    <script src="./js/vue-router.js"></script>
    <script>
        const Foo = {
            data(){
                return {

                }
            }, 
            template: `
                <div>
                    <p>foo</p>
                    <button @click="clickHandler">跳转</button>    
                </div>
            `,
            methods:{
                clickHandler(){
                    router.push({ path: '/bar' })
                }
            } 
        }
        const Bar = {
            data(){
                return {

                }
            }, 
            template: '<div>bar</div>' 
        }
        const router = new VueRouter({
            routes: [
                { path: '/foo', component: Foo },
                { path: '/bar', component: Bar }
            ]
        })
        let App = {
            router,
            data(){
                return {
                    text: "测试",
                }
            },
            template: `
                <div>
                    <p>{{text}}</p>
                    <p>
                        <router-link to="/foo">Go to Foo</router-link>
                        <router-link to="/bar">Go to Bar</router-link>
                    </p> 
                    <router-view></router-view>
                </div>
            `,

        }
        new Vue({
            el: "#app",
            data(){
                return {

                }
            },
            components:{
                App,
            }
        })
    </script>
</body>
</html>

 六、带参数的查询

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <App></App>
    </div>
    <script src="./js/vue.js"></script>
    <script src="./js/vue-router.js"></script>
    <script>
        const Foo = {
            data(){
                return {}
            }, 
            template: '<div>foo</div>' 
            }
        const Bar = {
            data(){
                return {}
            }, 
            template: '<div>bar</div>' 
            }
        const router = new VueRouter({
            routes: [
                { 
                    path: '/foo', 
                    name: 'foo',
                    component: Foo 
                    },
                { 
                    path: '/bar',
                    name: 'bar', 
                    component: Bar 
                    }
            ]
        })
        let App = {
            router,
            data(){
                return {
                    msg: "测试"
                }
            },
            // query 带参数的查询 /bar?userid=2
            template: `
                <div>
                    <p>{{msg}}</p>
                    <p>
                        <router-link :to="{name: 'foo'}">Go to Foo</router-link>
                        <router-link :to="{name: 'bar', query: {userid:2}}">Go to Bar</router-link>
                    </p>
                        <router-view></router-view>
                </div>
            `,
        }
        new Vue({
            el: "#app",
            data(){
                return {

                }
            },
            components:{
                App,
            },
        })
    </script>
</body>
</html>

七、其它

1、获取 路由信息对象

created 方法中的 this.$route

2、获取 路由对象 VueRouter

created(){
    // 获取 路由信息对象
    console.log(this.$route);
    // 获取 路由对象 VueRouter
    console.log(this.$router);
} 

3、去除url中的#

const router = new VueRouter({
  mode: 'history',
  routes: [...]
})

 

转载于:https://www.cnblogs.com/wt7018/p/11506882.html

### Vue Router 使用指南 Vue Router 是官方的路由管理器,用于构建单页面应用程序 (SPA)[^1]。为了使 Vue 应用程序能够处理不同的 URL 并呈现相应的组件,需要安装并配置 Vue Router。 #### 安装与初始化 要使用 Vue Router,首先需通过 npm 或 yarn 安装它: ```bash npm install vue-router@next --save ``` 或者 ```bash yarn add vue-router@next ``` 接着,在项目中引入 `VueRouter` 和 `createRouter` 函数来创建路由器实例,并将其挂载到 Vue 实例上[^1]。 ```javascript import { createApp } from 'vue'; import App from './App.vue'; import { createRouter, createWebHistory } from 'vue-router'; const app = createApp(App); app.use(createRouter({ history: createWebHistory(), routes: [ { path: '/', name: 'home', component: () => import('./components/Home.vue') }, // 更多路径... ] })); app.mount('#app'); ``` #### 嵌套路由设置 当遇到子级视图无法正常渲染的情况时,通常是因为父组件缺少 `<router-view>` 标签或是未正确定义嵌套结构。确保每个具有子路由的父组件都包含此标签以便加载对应的子组件。 ```html <template> <div class="parent"> <!-- 父组件内容 --> <router-view></router-view> <!-- 子组件会在这里被渲染 --> </div> </template> <script setup lang="ts"> // ... </script> ``` 对于更复杂的布局需求,可以定义多个命名视图,从而允许在同一级别下展示不同区域的内容。 #### 解决常见问题 如果发现路由变化后页面不更新,则可能是因为忘记了调用 `$forceUpdate()` 方法或存在缓存机制干扰;另外还需确认是否正确设置了动态参数匹配模式以及重定向逻辑等细节。 #### 配置懒加载 为了避免一次性加载过多资源影响性能,推荐采用按需加载的方式引入组件。上述例子中的 `component` 字段即展示了如何利用 ES6 的异步模块特性实现这一点。 ---
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