主要是控制某些路由不用渲染成菜单,比如login 404 401等路由
默认hidden就是false 显示在菜单
菜单不显示 documentation hidden: true
效果图
2-1 SidebarItem组件修改
主要是在渲染菜单项前 根据route.meta.hidden属性进行筛选,将hidden为true 的筛选出去 不进行菜单渲染
<template>
<div
v-if="!item.meta || !item.meta.hidden"
class="sidebar-item-container"
>
<!-- 只渲染一个路由 并且路由只有一个子路由时直接渲染这个子路由 -->
<template
v-if="theOnlyOneChildRoute && (!theOnlyOneChildRoute.children || theOnlyOneChildRoute.noShowingChildren)"
>
<sidebar-item-link
v-if="theOnlyOneChildRoute.meta"
:to="resolvePath(theOnlyOneChildRoute.path)"
>
<el-menu-item
:index="resolvePath(theOnlyOneChildRoute.path)"
>
<svg-icon
v-if="icon"
class="menu-icon"
:icon-class="icon"
></svg-icon>
<template #title>
<span>{{ theOnlyOneChildRoute.meta.title }}</span>
</template>
</el-menu-item>
</sidebar-item-link>
</template>
<!-- 有多个子路由时 -->
<el-submenu
v-else
:index="resolvePath(item.path)"
popper-append-to-body
>
<template #title>
<svg-icon
v-if="item.meta.icon"
class="menu-icon"
:icon-class="item.meta.icon"
></svg-icon>
<span class="submenu-title">{{ item.meta.title }}</span>
</template>
<sidebar-item
v-for="child in item.children"
:key="child.path"
:is-nest="true"
:item="child"
:base-path="resolvePath(child.path)"
>
</sidebar-item>
</el-submenu>
</div>
</template>
<script lang="ts">
import path from 'path'
import { defineComponent, PropType, computed, toRefs } from 'vue'
import { RouteRecordRaw } from 'vue-router'
import SidebarItemLink from './SidebarItemLink.vue'
import { isExternal } from '@/utils/validate'
export default defineComponent({
name: 'SidebarItem',
components: {
SidebarItemLink
},
props: {
item: {
type: Object as PropType<RouteRecordRaw>,
required: true
},
basePath: {
type: String,
required: true
}
},
setup (props) {
const { item } = toRefs(props)
// 子路由数量
const showingChildNumber = computed(() => {
const children = (props.item.children || []).filter(child => {
// hidden属性控制路由是否渲染成菜单 像login 401 404等路由都不需要渲染成菜案
if (child.meta && child.meta.hidden) return false
return true
})
return children.length
})
// 只有一个可渲染的子路由直接渲染这个子路由 (由于我们有的路由 layout布局组件是一级路由 二级路由才是我们要渲染成菜单)
const theOnlyOneChildRoute = computed(() => {
// 多个children
if (showingChildNumber.value > 1) {
return null
}
// 子路由只有一个时 并且做个hidden筛选 children是数组类型 所以循环下
if (item.value.children) {
for (const child of item.value.children) {
// hidden属性控制路由是否渲染成菜单 像login 401 404等路由都不需要渲染成菜单
if (!child.meta || !child.meta.hidden) {
return child
}
}
}
// showingChildNumber === 0
// 没有可渲染chiildren时 就渲染当前父路由item 可能children都是hidden或没有
return {
...props.item,
path: '', // resolvePath避免resolve拼接时 拼接重复
noShowingChildren: true // 无可渲染chiildren
}
})
// menu icon
const icon = computed(() => {
// 子路由 如果没有icon就用父路由的
return theOnlyOneChildRoute.value?.meta?.icon || (props.item.meta && props.item.meta.icon)
})
// 拼接路径 父路径+子路径
const resolvePath = (childPath: string) => {
// 如果是带协议外链 直接返回
if (isExternal(childPath)) {
return childPath
}
// 如果不是外链 需要和basePath拼接
return path.resolve(props.basePath, childPath)
}
return {
theOnlyOneChildRoute,
icon,
resolvePath
}
}
})
</script>
<style lang="scss">
.sidebar-item-container {
.menu-icon {
margin-right: 16px;
margin-left: 5px;
vertical-align: middle;
}
}
</style>
2-2 路由表里设置hidden
本节参考源码
https://gitee.com/brolly/vue3-element-admin/commit/e713893122b0ded1b56a783969a8e0405e61cdbc