Vue实现刷新当前页面的三种方式总结
黄金林 人气:0背景
项目当中如果做新增/修改/删除等等操作通常情况下都需要刷新数据或者刷新当前页面.
思路
(1)如果页面简单,调用接口刷新数据即可.
(2)如果页面复杂,需要调用多个接口或者通知多个子组件做刷新,可以采用刷新当前页面的方式 下面整理了3种方式来实现刷新当前页面,每种方式的思路不同,各有优缺点
实现
方式1-通过location.reload和$router.go(0)方法
(a)概述
通过location.reload
和$router.go(0)
都可以实现页面刷新,它利用浏览器刷新功能,相当于按下了f5
键刷新页面
优点:足够简单
确定:会出现页面空白,用户体验不好
(b)代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script> <script src="https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js" type="application/javascript"></script> <style> * {padding:0;margin:0;} .container { padding: 10px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;} .aside{ width:200px;background-color: #d3dce6; } .main { flex: 1; } </style> </head> <body> <div id="app"> <router-view></router-view> </div> </body> <script> //框架页 let Layout = { created() { console.log('框架页加载') }, template: ` <div class="container"> <div class="aside">左侧菜单</div> <div class="main"><router-view></router-view></div> </div> ` } //首页 let Home = { template: ` <div> 首页 <button @click="onClick">刷新</button> </div> `, created() { console.log('首页加载') }, methods: { onClick(){ // 通localtion.reload或者this.$router.go(0)实现整体刷新页面,会出现页面闪烁 // location.reload() this.$router.go(0) } }, } //路由配置 let router = new VueRouter({ routes: [ {path: '/', component: Layout, children:[ {path: '', component: Home} ]} ] }) Vue.use(VueRouter) //根组件 new Vue({ router, el: '#app' }) </script> </html>
(c)预览
方式2-通过空白页面
(a)概述
通过$router.replace
方法,跳转一个空白页面,然后再调回之前页面,它利用vue-router
切换页面会把页面销毁并新建新页面的特性
优点:不会出现页面空白,用户体验好
缺点:地址栏会出现快速切换的过程
(b)代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script> <script src="https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js" type="application/javascript"></script> <style> * {padding:0;margin:0;} .container { padding: 10px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;} .aside{ width:200px;background-color: #d3dce6; } .main { flex: 1; } </style> </head> <body> <div id="app"> <router-view></router-view> </div> </body> <script> //框架页 let Layout = { created() { console.log('框架页加载') }, template: ` <div class="container"> <div class="aside">左侧菜单</div> <div class="main"><router-view></router-view></div> </div> ` } //首页 let Home = { template: ` <div> 首页 <button @click="onClick">刷新</button> </div> `, created() { console.log('首页加载') }, methods: { onClick(){ //使用replace跳转后不会留下 history 记录,并通过redirect传递当前页面的路径 this.$router.replace(`/blank?redirect=${this.$route.fullPath}`) } }, } //空白页面 let Blank = { created(){ console.log('空白页加载') //重新跳回之前的页面 this.$router.replace(this.$route.query.redirect) }, template: ` <div></div> ` } //路由配置 let router = new VueRouter({ routes: [ {path: '/', component: Layout, children:[ {path: '', component: Home} ]}, //配置空白页面的路由 {path: '/blank', component: Layout, children:[ {path: '', component: Blank} ]} ] }) Vue.use(VueRouter) //根组件 new Vue({ router, el: '#app' }) </script> </html>
(c)预览
方式3-通过provide和inject
(a)概述
通过在父页面的<router-view></router-view>
上添加v-if的控制
来销毁和重新创建页面的方式刷新页面,并且用到provide
和inject
实现多层级组件通信方式,父页面通过provide
提供reload
方法,子页面通过inject
获取reload
方法,调用方法做刷新
优点:不会出现页面空白,地址栏会不会出现快速切换的过程,用户体验好
缺点:实现稍复杂,涉及到provide
和inject
多层级组件间的通信,和v-if
控制组件创建和销毁,和$nextTick
事件循环的应用
(b)代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script> <script src="https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js" type="application/javascript"></script> <style> * {padding:0;margin:0;} .container { padding: 10px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;} .aside{ width:200px;background-color: #d3dce6; } .main { flex: 1; } </style> </head> <body> <div id="app"> <router-view></router-view> </div> </body> <script> //框架页 let Layout = { template: ` <div class="container"> <div class="aside">左侧菜单</div> <!-- 通过v-if实现销毁和重新创建组件 --> <div class="main"><router-view v-if="isRouterAlive"></router-view></div> </div> `, created() { console.log('框架页加载') }, // 通过provide提供reload方法给后代组件 provide(){ return { reload: this.reload } }, data(){ return { isRouterAlive: true } }, methods: { async reload(){ this.isRouterAlive = false //通过this.$nextTick()产生一个微任务,在一次dom事件循环后,重新创建组件 await this.$nextTick() this.isRouterAlive = true } } } //首页 let Home = { template: ` <div> 首页 <button @click="onClick">刷新</button> </div> `, created() { console.log('首页加载') }, //通过inject获取祖先元素的reload方法 inject: ['reload'], methods: { onClick(){ this.reload() } }, } //路由配置 let router = new VueRouter({ routes: [ {path: '/', component: Layout, children:[ {path: '', component: Home} ]} ] }) Vue.use(VueRouter) //根组件 new Vue({ router, el: '#app' }) </script> </html>
(c)预览
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