1.下载router     

npm  i router

   

2.注册路由  文件路径 ：src/router/index.js

import Vue from "vue";
import VueRouter from "vue-router";
Vue.use(VueRouter);
import Home from "../components/home.vue";
import Main from "../components/homeMain.vue"; //布局页面
import Login from "../components/login.vue"; //登录页
import Mall from "../components/mall.vue"; //商品管理
import User from "../components/user.vue"; //商品管理
import pageOne from "../components/pageOne.vue"; // 页面1
import pageTwo from "../components/pageTwo.vue";
//2.将路由组件进行映射
const routes = [
  {
    // 主路由,
    path: "/",
    component: Main,
    redirect: "/home",
    children: [
      // 子路由
      {
        path: "home", //首页
        component: Home,
      },
      {
        path: "mall", //商品管理
        component: Mall,
      },
      {
        path: "user", //用户管理
        component: User,
      },
      {
        path: "page1", //页面1
        component: pageOne,
      },
      {
        path: "page2", //页面2
        component: pageTwo,
      },
    ],
  },

  {
    path: "/home", //登录页
    component: Login,
  },
];
const router = new VueRouter({
  routes,
});
// 将router实例对外进行暴露
export default router;

1.'/'代表主路由

2.redirect  要进行重定向的页面

3.后面的路由配置都是根据 /来进行配置的

如:/mall  /user  /page1 /pagetwo

3.挂载路由 main.js

import router from "./router";.
new Vue({
  router,
  store,
  render: h => h(App),
}).$mount('#app')

4.sidebar页面

<template>
  <div class="">
    <el-menu
      default-active="1-4-1"
      class="el-menu-vertical-demo"
      @open="handleOpen"
      @close="handleClose"
      :collapse="isCollapse"
      background-color="#545c64"
      text-color="#fff"
      active-text-color="#ffd04b"
    >
      <!-- <h3>{{ isCollapse ? "后台" : "通用后台管理系统" }}</h3> -->

      <!--  没有子集的区域 -->
      <el-menu-item
        v-for="item in noChildren"
        :key="item.name"
        :index="item.name"
        @click="clickMenu(item)"
      >
        <i :class="`el-icon-${item.icon}`"></i>
        <span slot="title">{{ item.label }}</span>
      </el-menu-item>
      <!-- 有子集的区域 -->

      <el-submenu v-for="item in hasChildren" :key="item.label" index="1">
        <template slot="title">
          <i :class="`el-icon-${item.icon}`"></i>
          <span slot="title">{{ item.label }}</span>
        </template>
        <!-- 遍历它的子集 -->
        <el-menu-item-group
          v-for="subItem in item.children"
          :key="subItem.path"
        >
          <el-menu-item :index="subItem" @click="clickMenu(subItem)">{{
            subItem.label
          }}</el-menu-item>
        </el-menu-item-group>
      </el-submenu>
    </el-menu>
  </div>
</template>

<script>
export default {
  name: "",
  data() {
    return {
      // isCollapse: false, //默认的情况下是不展开的
      //  导入要渲染的路由
      menuData: [
        {
          path: "/",
          name: "home",
          label: "首页",
          icon: "s-home",
          url: "Home/Home",
        },
        {
          path: "/mall",
          name: "mall",
          label: "商品管理",
          icon: "video-play",
          url: "MallManage/MallManage",
        },
        {
          path: "/user",
          name: "user",
          label: "用户管理",
          icon: "user",
          url: "UserManage/UserManage",
        },
        {
          label: "其他",
          icon: "location",
          children: [
            {
              path: "/page1",
              name: "page1",
              label: "页面1",
              icon: "setting",
              url: "Other/PageOne",
            },
            {
              path: "/page2",
              name: "page2",
              label: "页面2",
              icon: "setting",
              url: "Other/PageTwo",
            },
          ],
        },
      ],
    };
  },
  computed: {
    // 没有子集菜单
    noChildren() {
      return this.menuData.filter((item) => !item.children);
    },
    // 有子菜单
    hasChildren() {
      return this.menuData.filter((item) => item.children);
    },
    isCollapse() {
      //  返回响应的状态
      return this.$store.state.tab.isCollapse;
    },
  },
  methods: {
    clickMenu(item) {
      console.log(item);
      // this.$router.push(item.path);
      if (
        this.$route.path !== item.path &&
        !(this.$route.path === "/home" && item.path === "/")
      ) {
        this.$router.push(item.path);
      }
    },
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
  },
  mounted() {},
  components: {},
};
</script>

<style scoped lang="less"></style>

解析:

1.有子路菜单

// 有子菜单
    hasChildren() {
      return this.menuData.filter((item) => item.children);
    },

2.没子菜单

 // 没有子集菜单
    noChildren() {
      return this.menuData.filter((item) => !item.children);
    },

3.添加点击事件跳转到相应的路由

5.路由的出口

主页面的路由出口

 

中心页面的路由出口