vue 路由demo2

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>http://www.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>
        .router-link-active{
            font-size: 20px;
            color:#f60;
        }
        .fade-enter-active, .fade-leave-active{
          transition: opacity 1s ;
        }
        .fade-enter, .fade-leave-to{
          opacity: 0 ;
        }
    </style>
    <script src="https://unpkg.com/vue/dist/vue.js"></script>
    <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
    
</head>
<body>

<div id="app">
    <router-link to="/r1">GO to foo</router-link>
    <router-link to="/r2">Go to bar</router-link>
    <router-view>r1r2</router-view>
</div>

<script>
    const c1 = {
        template:`
            <div>foo
                <router-link to="/r1/r11">r11</router-link>
                <router-link to="/r1/r12">r12</router-link>
                <transition name="fade">
                    <router-view>r11r12</router-view>
                </transition>
            </div>
        `,
        beforeRouteEnter (to, from, next) {
            console.log(this + `...c1 - beforeRouteEngter`);
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteUpdate (to, from, next) {
            console.log(this + `...c1 - beforeRouteUpdate`);
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteLeave  (to, from, next) {
            console.log(this + `...c1 - beforeRouteLeave`);
            console.log(to);
            console.log(from);
            next();
        }
    };
    
    const error = {
        template:`<div>error</div>`
    };
    
    const c2 = {
        template:`<div>bar</div>`,
        beforeRouteEnter (to, from, next) {
            console.log(this + `...c2 - beforeRouteEngter`);
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteUpdate (to, from, next) {
            console.log(this + `...c2 - beforeRouteUpdate`);
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteLeave  (to, from, next) {
            console.log(this + `...c2 - beforeRouteLeave`);
            console.log(to);
            console.log(from);
            next();
        }
    };

    const c11 = {
        template:`<div>c11</div>`,
        beforeRouteEnter (to, from, next) {
            console.log(`c11 - beforeRouteEnter`);
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteUpdate (to, from, next) {
            console.log(`c11 - beforeRouteUpdate`);
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteLeave  (to, from, next) {
            console.log(`c11 - beforeRouteLeave`);
            console.log(to);
            console.log(from);
            next();
        }
    };
    
    const c12 = {
        template:`<div>c12</div>`,
        beforeRouteEnter (to, from, next) {
            console.log('c12 - beforeRouteEngter');
            console.log(to.matched[0]);//父路由"/r1"
            console.log(to.matched[1]);//子路由"/r1/r12"
            if(to.matched.some( r => {return r.meta.r12} )){
                next({
                    //path:'/r2',
                });
            }
            console.log(from);
            next();
        },
        beforeRouteUpdate (to, from, next) {
            console.log('c12 - beforeRouteUpdate');
            console.log(to);
            console.log(from);
            next();
        },
        beforeRouteLeave  (to, from, next) {
            console.log('c12 - beforeRouteLeave');
            console.log(to);
            console.log(from);
            next();
        }
    };
    
    const routes1 = [
        {
            path:'/r1',
            component:c1,
            meta:{r1:true},
            children:[
                {
                    path:'r11',
                    component:c11,
                    meta:{r11:true}
                },
                {
                    path:'r12',
                    component:c12,
                    meta:{r12:true}
                }
            ]
        },
        {
            path:'/r2',
            component:c2    
        },
        {
            path:'/r3',
            component:c3
        },
        {
            path:'*',
            component:c12
        }
    ];
    
    const router2 = new VueRouter({
        routes:routes1
    });
    
    const vm = new Vue({
        router:router2
    }).$mount('#app');
</script>
</body>
</html>

 

### Vue Router 示例代码 以下是基于 VueVue Router 的一个简单示例,展示如何在一个 Vue 项目中配置并使用 Vue Router: ```javascript // main.js 文件 import Vue from 'vue'; import App from './App.vue'; import router from './router'; // 导入路由配置文件 Vue.config.productionTip = false; new Vue({ router, // 将路由注入到根实例中 render: h => h(App), }).$mount('#app'); ``` ```javascript // router/index.js 文件 import Vue from 'vue'; import Router from 'vue-router'; import Home from '../components/Home.vue'; // 主页组件 import About from '../components/About.vue'; // 关于页面组件 Vue.use(Router); const router = new Router({ mode: 'history', // 设置路由模式为 history 模式[^2] routes: [ { path: '/', name: 'Home', component: Home, }, { path: '/about', name: 'About', component: About, }, ], }); export default router; ``` ```html <!-- components/Home.vue --> <template> <div class="home"> <h1>欢迎来到首页</h1> <p>这是您的第一个 Vue 页面。</p> </div> </template> <script> export default { name: 'Home', }; </script> ``` ```html <!-- components/About.vue --> <template> <div class="about"> <h1>关于我们</h1> <p>这是一个关于我们的页面。</p> </div> </template> <script> export default { name: 'About', }; </script> ``` --- ### Vue Router 基本概念说明 #### 1. 路由模式 Vue Router 支持两种主要的路由模式:`hash` 模式和 `history` 模式。默认情况下会使用 `hash` 模式,但如果希望 URL 更加美观,则可以设置为 `history` 模式[^2]。 - **Hash 模式**: URL 中带有 `#` 符号,例如 `http://example.com/#/about`。 - **History 模式**: 不带 `#` 符号,更加简洁,例如 `http://example.com/about`。 需要注意的是,在使用 `history` 模式时,服务器需要进行额外配置以支持前端路由[^2]。 #### 2. 路由跳转 可以通过 `<router-link>` 组件实现声明式的导航,或者通过 `$router.push()` 方法实现编程式的导航。 ```html <!-- 声明式导航 --> <router-link to="/">回到首页</router-link> <router-link :to="{ name: 'About' }">前往关于页面</router-link> ``` ```javascript // 编程式导航 this.$router.push('/'); this.$router.replace('/about'); // 替换当前历史记录而不创建新条目 this.$router.go(-1); // 返回上一页 ``` --- ### 动态路由与嵌套路由 #### 动态路由匹配 动态路由允许传递参数给路由路径,并在目标组件中获取这些参数。 ```javascript { path: '/user/:id', // 动态部分为 :id component: User, } ``` 在组件内部可以通过 `$route.params.id` 获取传入的参数[^2]。 #### 嵌套路由 嵌套路由用于处理父子关系的视图结构。 ```javascript { path: '/parent', component: Parent, children: [ { path: 'child', // 子路由路径相对于父级 component: Child, }, ], } ``` 在模板中需提供 `<router-view>` 占位符来渲染子路由的内容[^2]。 ---
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