vue路由,路由传参(parmas,query)
一、Vue路由基础用法:1 .安装npm install vue-router --save2 .main.js中//Vue路由:引入import VueRouter from 'vue-router'Vue.use(VueRouter)//Vue路由:引入并创建组件import BYHome from './components/BYHome.vue'import BYNe...
一、Vue路由基础用法:
1 .安装
npm install vue-router --save
2 .main.js中
//Vue路由:引入
import VueRouter from 'vue-router'
Vue.use(VueRouter)
//Vue路由:引入并创建组件
import BYHome from './components/BYHome.vue'
import BYNews from './components/BYNews.vue'
import HelloWorld from './components/HelloWorld.vue'
//Vue路由:配置路由
const routes = [
{path: '/home', component: BYHome},
{path: '/news', component: BYNews},
{path: '/helloworld', component: HelloWorld},
{path: '*', redirect: '/home'} /*默认跳转路由 */
]
//Vue路由:实例化VueRouter
const router = new VueRouter({
routes //缩写,相当于 routes:routes
})
new Vue({
router, //Vue路由:挂载路由
render: h => h(App),
}).$mount('#app')
//Vue路由:根组件的模板里面放上下面这句话,需要在App.vue 中配置路由出口:路由匹配到的组件将渲染在根组件App.vue中
<router-view></router-view>
//路由跳转
<router-link to="/home">首页</router-link>
<router-link to="/news">新闻</router-link>
<router-link to="/helloworld">helloWorld</router-link>
二、Vue路由配置的抽出
1.安装
npm install vue-router --save
2.创建router.js文件,在该文件中配置路由并暴露出去
import Vue from 'vue';
//Vue路由:引入
import VueRouter from 'vue-router'
Vue.use(VueRouter)
//Vue路由:引入并创建组件
import BYHome from '../BYHome.vue'
import BYNews from '../BYNews.vue'
import HelloWorld from '../HelloWorld.vue'
//Vue路由:配置路由
const routes = [
{path: '/home', component: BYHome},
{path: '/news', component: BYNews},
{path: '/helloworld', component: HelloWorld},
{path: '*', redirect: '/home'} /*默认跳转路由 */
]
//Vue路由:实例化VueRouter
const router = new VueRouter({
routes //缩写,相当于 routes:routes
})
//Vue路由:需要在App.vue 中配置路由出口:路由匹配到的组件将渲染在根组件App.vue中
/* <router-view></router-view> */
//暴露出去
export default router;
3.在main.js中
//Vue路由:引入路由文件
import router from ‘./components/jsTool/router.js’
new Vue({
router, //Vue路由:挂载路由
render: h => h(App),
}).$mount(’#app’)
4.Vue路由:根组件的模板里面放上下面这句话,需要在App.vue 中配置路由出口:路由匹配到的组件将渲染在根组件App.vue中
<router-view></router-view>
5.路由跳转
<router-link to="/home">首页</router-link>
<router-link to="/news">新闻</router-link>
<router-link to="/helloworld">helloWorld</router-link>
三、路由动态传值:
1.获取路由的get传值
//路由配置
import BYHomeDetail from '../BYHomeDetail.vue'
{path: '/homeDetail', component:BYHomeDetail},
//跳转时跟get参数
<li li v-for="(listItem,homeKey) in msglist">
<router-link :to="'/homeDetail?id='+homeKey"> {{listItem.title}} </router-link>
</li>
//子页面获取路由的get传值
mounted(){
console.log(this.$route.query);
}
2.动态路由传值
//路由配置:带形参
import BYNewDetail from '../BYNewDetail.vue'
{path: '/newDetail/:aid', component: BYNewDetail},
//跳转时传值
<li v-for="(item,key) in list">
<!-- 给 newDetail 传值 -->
<router-link :to="'/newDetail/'+key">{{key}}--{{item}}</router-link>
</li>
//子页面获取动态路由传值
mounted(){
console.log(this.$route.params);
}
四、路由的跳转方式:
第一种跳转方式:编程式导航
{path: '/news', component: BYNews},
this.$router.push({path:'news'});
带参:
{path: '/newDetail/:aid', component: BYNewDetail},
this.$router.push({path:'/newDetail/495'});
第二种跳转方式:命名路由
{path: '/news', component: BYNews,name:'news'},
this.$router.push({name:'news'});
带参:
this.$router.push({name:'news',params:{userId:123}});
五、路由的hash模式以及history模式:
默认是hash模式,路由上方的路径是用#表示,http://localhost:8080/#/news
可以将hash模式改为history模式,路由上方的路径就没有了
#,http://localhost:8080/news
如果有history模式,需要后台做一些配置
//Vue路由:实例化VueRouter
const router = new VueRouter({
mode: 'history', //若是默认的hash模式,则mode不需要写
routes //缩写,相当于 routes:routes
})
六、路由的嵌套
User.vue页面中有两个子页面
UserAdd.vue
UserList.vue
//路由的配置
import BYUser from '../BYUser.vue'
import UserAdd from '../User/UserAdd.vue'
import UserList from '../User/UserList.vue'
{path: '/user' , component:BYUser,
children:[
{path: 'useradd',component:UserAdd},
{path: 'userlist',component:UserList}
]
},
//路由的跳转
<div>
<div class="left">
<ul>
<li>
<router-link to="/user/useradd"> 增加用户 </router-link>
</li>
<li>
<router-link to="/user/userlist"> 用户列表 </router-link>
</li>
</ul>
</div>
<div class="right">
<router-view></router-view>
</div>
</div>
七、登录及首页的路由配置说明
1.创建一个localstorage本地存储类storage.js,用来记录登录状态
var storage={
set(key,value){
console.log("storage---->")
console.log(value)
localStorage.setItem(key, JSON.stringify(value));
},
get(key){
return JSON.parse(localStorage.getItem(key));
},remove(key){
localStorage.removeItem(key);
}
}
export default storage;
2.创建一个自定义的路由表:router.js
import Vue from 'vue';
//引入路由
import VueRouter from 'vue-router'
Vue.use(VueRouter)
//设置路由表
const routes = [
{
path: '/',
redirect: '/home'
},
{path: '/404', component: resolve => require(['../common/404.vue'],resolve)},
{path: '/login', component: resolve => require(['../page/Login.vue'],resolve)},
{path: '/home',component: resolve => require(['../page/Home.vue'],resolve),meta:{requireAuth:true}},//加上meta 表示需要登录才可进入
{
path:'*',
redirect:'/404'
}
]
//实例化路由并指定模式
const router = new VueRouter({
/*默认是hash模式,路由上方的路径是用#表示,http://localhost:8080/#/news
可以将hash模式改为history模式,路由上方的路径就没有了#,http://localhost:8080/news
如果有history模式,需要后台做一些配置
*/
// mode:'history',
routes //缩写,相当于 routes:routes
})
//暴露出去,供外部调用
export default router;
3.在main.js中配置钩子路由:
//引入自定义的路由表
import router from './components/router/router.js'
//引入localstorage本地存储管理
import storage from "./components/Tools/storage.js";
/**在路由跳转之前执行
* to: 即将进入的路由对象
* from: 当前导航即将离开的路由
* next:Function,进行管道中的一个钩子,如果执行完了,则导航的状态就是 confirmed (确认的);否则为false,终止导航。
* */
router.beforeEach((to, from, next) => {
//需要登录,但未登录者可以跳转到登录页面
const isLogin = storage.get('login');
if(!isLogin && to.meta.requireAuth){//未登录 且 需要登录(提前在路由表中加上meta)
next({
path:'/login'
})
}else{//其他
next();
}
});
4.登录及退出登录
登录:
console.log("登录成功");
let flag = true;
storage.set('login',flag);//存储登录状态
this.$router.push('/');//按路由规则跳转
退出登录:
console.log("退出登录");
let flag = false;
storage.set('login',flag);//存储登录状态
this.$router.push('/login');//按路由规则跳转
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