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
缺点:会出现页面空白,用户体验不好
(b)代码
<!DOCTYPE html><htmllang="en"><head><metacharset="UTF-8"><metahttp-equiv="X-UA-Compatible"content="IE=edge"><metaname="viewport"content="width=device-width, initial-scale=1.0"><title>Document</title><scriptsrc="https://lf3-cdn-/cdn/expire-1-M/vue/2.6.14/vue.js"type="application/javascript"></script><scriptsrc="https://lf26-cdn-/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><divid="app"><router-view></router-view></div></body><script>//框架页letLayout = {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letHome = {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 = newVueRouter({routes: [{path: '/', component: Layout, children:[{path: '', component: Home}]}]}) Vue.use(VueRouter)//根组件newVue({router,el: '#app'})</script></html>复制代码
(c)预览
链接
方式2-通过空白页面
(a)概述
通过$router.replace方法,跳转一个空白页面,然后再调回之前页面,它利用vue-router切换页面会把页面销毁并新建新页面的特性
优点:不会出现页面空白,用户体验好
缺点:地址栏会出现快速切换的过程
(b)代码
<!DOCTYPE html><htmllang="en"><head><metacharset="UTF-8"><metahttp-equiv="X-UA-Compatible"content="IE=edge"><metaname="viewport"content="width=device-width, initial-scale=1.0"><title>Document</title><scriptsrc="https://lf3-cdn-/cdn/expire-1-M/vue/2.6.14/vue.js"type="application/javascript"></script><scriptsrc="https://lf26-cdn-/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js"type="application/javascript"></script><style>* {padding:0;margin:0;}.container { padding: 10px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;}.aside{ width:200px;background-color: #d3dce6; }.main { flex: 1; }</style></head><body><divid="app"><router-view></router-view></div></body><script>//框架页letLayout = {created() {console.log('框架页加载')},template: `<div class="container"><div class="aside">左侧菜单</div> <div class="main"><router-view></router-view></div></div>`}//首页letHome = {template: `<div>首页<button @click="onClick">刷新</button></div>`,created() {console.log('首页加载')},methods: {onClick(){//使用replace跳转后不会留下 history 记录,并通过redirect传递当前页面的路径this.$router.replace(`/blank?redirect=${this.$route.fullPath}`)}},}//空白页面letBlank = {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 = newVueRouter({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newVue({router,el: '#app'})</script></html>复制代码
(c)预览
链接
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$nextTick事件循环的应用
(b)代码
<!DOCTYPE html><htmllang="en"><head><metacharset="UTF-8"><metahttp-equiv="X-UA-Compatible"content="IE=edge"><metaname="viewport"content="width=device-width, initial-scale=1.0"><title>Document</title><scriptsrc="https://lf3-cdn-/cdn/expire-1-M/vue/2.6.14/vue.js"type="application/javascript"></script><scriptsrc="https://lf26-cdn-/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js"type="application/javascript"></script><style>* {padding:0;margin:0;}.container { padding: 10px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;}.aside{ width:200px;background-color: #d3dce6; }.main { flex: 1; }</style></head><body><divid="app"><router-view></router-view></div></body><script>//框架页letLayout = {template: `<div class="container"><div class="aside">左侧菜单</div> <!-- 通过v-if实现销毁和重新创建组件 --><div class="main"><router-view v-if="isRouterAlive"></router-view></div></div>`,created() {console.log('框架页加载')},// 通过provide提供reload方法给后代组件provide(){return {reload: this.reload}},data(){return {isRouterAlive: true}},methods: {asyncreload(){this.isRouterAlive = false//通过this.$nextTick()产生一个微任务,在一次dom事件循环后,重新创建组件awaitthis.$nextTick()this.isRouterAlive = true}}}//首页letHome = {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 = newVueRouter({routes: [{path: '/', component: Layout, children:[{path: '', component: Home}]}]}) Vue.use(VueRouter)//根组件newVue({router,el: '#app'})</script></html>
