基于vue-element-admin基础模板实现侧边栏菜单动态渲染_vue admin template 动态生成侧边栏-优快云博客

本文链接：https://blog.youkuaiyun.com/luolinyin/article/details/121015978

本文介绍了如何在Vue.js应用中实现动态路由、自定义侧边栏和Vuex状态管理。通过示例代码展示了如何设置路由、根据条件展示侧边栏项，并利用Vuex存储和同步应用程序的状态，特别是针对顶部导航菜单的切换。同时，还展示了在不同页面间如何切换并保持用户选择的导航状态。

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下载：

GitHub - PanJiaChen/vue-admin-template: a vue2.0 minimal admin template

1、路由（部分代码）：


export const asyncRoutes = [
  {
    type: 'goods',
    path: '/goods',
    component: Layout,
    children: [{
      path: 'goods',
      component: () => import('@/views/goods/index'),
      name: '商品管理',
      meta: {
        title: '商品管理',
        icon: 'el-icon-goods'
      }
    }]
  },
  {
    type: 'members',
    path: '/members',
    component: Layout,
    children: [{
      path: 'members',
      component: () => import('@/views/members/index'),
      name: '会员管理',
      meta: {
        title: '会员管理',
        icon: 'el-icon-user'
      }
    }]
  },
  {
    type: 'order',
    path: '/order',
    component: Layout,
    children: [{
      path: 'order',
      component: () => import('@/views/order/index'),
      name: '订单管理',
      meta: {
        title: '订单管理',
        icon: 'el-icon-shoppingCard'
      }
    }]
  },
  // 404 page must be placed at the end !!!
  {
    path: '*',
    redirect: '/404',
    hidden: true
  }
]

2、侧边栏改造：

<template
      v-if="hasOneShowingChild(item.children,item) && (!onlyOneChild.children||onlyOneChild.noShowingChildren)&&!item.alwaysShow">
      <template v-if="item.type === $store.state.app.sidebar.topNavState">
        <app-link v-if="onlyOneChild.meta" :to="resolvePath(onlyOneChild.path)">
          <el-menu-item :index="resolvePath(onlyOneChild.path)" :class="{'submenu-title-noDropdown':!isNest}">
            <item :icon="onlyOneChild.meta.icon||(item.meta&&item.meta.icon)" :title="onlyOneChild.meta.title" />
          </el-menu-item>
        </app-link>
      </template>
    </template>

注意代码

item.type === $store.state.app.sidebar.topNavState

3、store改造

const state = {
  sidebar: {
    opened: Cookies.get('sidebarStatus') ? !!+Cookies.get('sidebarStatus') : true,
    withoutAnimation: false,
    topNavState: 'goods'
  },
  device: 'desktop',
  size: Cookies.get('size') || 'medium'
}

4、index.vue改造

<el-menu :default-active="activeIndex" class="el-menu-demo" mode="horizontal" @select="handleSelect">
        <el-menu-item index="1">商品</el-menu-item>
        <el-menu-item index="2">会员</el-menu-item>
        <el-menu-item index="3">订单</el-menu-item>
      </el-menu>


====================================================


/**
       * 监听导航菜单切换
       */
      handleSelect(key, keyPath) {
        // console.log(key, keyPath);
        // console.log("state=", this.$store.state)
        if (key === '1') {
          this.$store.state.app.sidebar.topNavState = 'goods';
          this.$router.push(`/`);
        } else if (key === '2') {
          this.$store.state.app.sidebar.topNavState = 'members';
          this.$router.push(`/members/members`)
        }
        // console.log("state=", this.$store.state)
        //缓存选中的导航菜单
        localStorage.setItem('topNavState', this.$store.state.app.sidebar.topNavState);
      },

====================================================

created() {
      this.userData = JSON.parse(localStorage.getItem('userData'));
      //获取本地缓存，选中之前选中的导航栏
      let topNavState = localStorage.getItem('topNavState');
      if (topNavState === 'members') {
        this.activeIndex = '2';
        this.$store.state.app.sidebar.topNavState = 'members';
      } else {
        this.activeIndex = '1';
        this.$store.state.app.sidebar.topNavState = 'goods';
      }
    },