目录
- 背景
- 思路
- 实现
- 方式1-通过location.reload和$router.go(0)方法
- 方式2-通过空白页面
- 方式3-通过provide和inject
背景
项目当中如果做新增/修改/删除等等操作通常情况下都需要刷新数据或者刷新当前页面.
思路
(1)如果页面简单,调用接口刷新数据即可.
(2)如果页面复杂,需要调用多个接口或者通知多个子组件做刷新,可以采用刷新当前页面的方式 下面整理了3种方式来实现刷新当前页面,每种方式的思路不同,各有优缺点
实现
方式1-通过location.reload和$router.go(0)方法
(a)概述
通过location.reload和$router.go(0)都可以实现页面刷新,它利用浏览器刷新功能,相当于按下了f5键刷新页面
优点:足够简单
确定:会出现页面空白,用户体验不好
(b)代码
<html lang="en"> | |
<head> | |
<meta charset="UTF-"> | |
<meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
<meta name="viewport" content="width=device-width, initial-scale=.0"> | |
<title>Document</title> | |
<script src="https://lf-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script> | |
<script src="https://lf-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js" type="application/javascript"></script> | |
<style> | |
* {padding:;margin:0;} | |
.container { padding:px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;} | |
.aside{ width:px;background-color: #d3dce6; } | |
.main { flex:; } | |
</style> | |
</head> | |
<body> | |
<div id="app"> | |
<router-view></router-view> | |
</div> | |
</body> | |
<script> | |
//框架页 | |
let Layout = { | |
created() { | |
console.log('框架页加载') | |
}, | |
template: ` | |
<div class="container"> | |
<div class="aside">左侧菜单</div> | |
<div class="main"><router-view></router-view></div> | |
</div> | |
` | |
} | |
//首页 | |
let Home = { | |
template: ` | |
<div> | |
首页 | |
<button @click="onClick">刷新</button> | |
</div> | |
`, | |
created() { | |
console.log('首页加载') | |
}, | |
methods: { | |
onClick(){ | |
// 通localtion.reload或者this.$router.go()实现整体刷新页面,会出现页面闪烁 | |
// location.reload() | |
this.$router.go() | |
} | |
}, | |
} | |
//路由配置 | |
let router = new VueRouter({ | |
routes: [ | |
{path: '/', component: Layout, children:[ | |
{path: '', component: Home} | |
]} | |
] | |
}) | |
Vue.use(VueRouter) | |
//根组件 | |
new Vue({ | |
router, | |
el: '#app' | |
}) | |
</script> | |
</html> |
(c)预览
方式2-通过空白页面
(a)概述
通过$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
<html lang="en"> | |
<head> | |
<meta charset="UTF-"> | |
<meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
<meta name="viewport" content="width=device-width, initial-scale=.0"> | |
<title>Document</title> | |
<script src="https://lf-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script> | |
<script src="https://lf-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js" type="application/javascript"></script> | |
<style> | |
* {padding:;margin:0;} | |
.container { padding:px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;} | |
.aside{ width:px;background-color: #d3dce6; } | |
.main { flex:; } | |
</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
<html lang="en"> | |
<head> | |
<meta charset="UTF-"> | |
<meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
<meta name="viewport" content="width=device-width, initial-scale=.0"> | |
<title>Document</title> | |
<script src="https://lf-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js" type="application/javascript"></script> | |
<script src="https://lf-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue-router/3.5.3/vue-router.min.js" type="application/javascript"></script> | |
<style> | |
* {padding:;margin:0;} | |
.container { padding:px;display: flex;flex-basis: auto;height: 100vh;box-sizing: border-box;} | |
.aside{ width:px;background-color: #d3dce6; } | |
.main { flex:; } | |
</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> |