1.1 路由搭建

1.1.1 安装vue router

npm install vue-router@4

1.1.2 在src/router/index.js中创建路由器，并导出

import { createRouter, createWebHistory } from 'vue-router'

//导入组件
import LoginVue from '@/views/Login.vue'
import LayoutVue from '@/views/LayoutGeji.vue'


//定义路由关系
const routes = [
    { path: '/login', component: LoginVue },
    { path: '/', component: LayoutVue },
]

//创建路由器
const router = createRouter({
    history: createWebHistory(),
    routes: routes
})

//导出路由
export default router

1.1.3 在vue应用实例中使用vue-router

1.1.4 声明router-view标签，展示组件内容

1.1 自动跳转

import { useRouter } from 'vue-router'

const router = useRouter()

const login =async ()=>{
    //调用接口,完成登录
   let result =  await userLoginService(registerData.value);
 
   ElMessage.success(result.msg ? result.msg : '登录成功')

   //跳转到首页 路由完成跳转
   router.push('/')
}

1.2 子路由

1.2.1 配置子路由

import { createRouter, createWebHistory } from 'vue-router'

//导入组件
import LoginVue from '@/views/Login.vue'
import LayoutVue from '@/views/LayoutGeji.vue'

import ArticleCategoryVue from '@/views/article/ArticleCategory.vue'
import ArticleManageVue from '@/views/article/ArticleManage.vue'
import UserAvatarVue from '@/views/user/UserAvatar.vue'
import UserInfoVue from '@/views/user/UserInfo.vue'
import UserResetPasswordVue from '@/views/user/UserResetPassword.vue'

//定义路由关系
const routes = [
    { path: '/login', component: LoginVue },
   
    {
        path: '/', component: LayoutVue,redirect:'/article/manage', children: [
            { path: '/article/category', component: ArticleCategoryVue },
            { path: '/article/manage', component: ArticleManageVue },
            { path: '/user/info', component: UserInfoVue },
            { path: '/user/avatar', component: UserAvatarVue },
            { path: '/user/resetPassword', component: UserResetPasswordVue }
        ]
    }
]

//创建路由器
const router = createRouter({
    history: createWebHistory(),
    routes: routes
})

//导出路由
export default router

1.2.2 声明router-view

1.2.3 为菜单项 el-menu-item 设置index属性，设置点击后的路由路径

```html
<script setup>
import {
    Management,
    Promotion,
    UserFilled,
    User,
    Crop,
    EditPen,
    SwitchButton,
    CaretBottom
} from '@element-plus/icons-vue'
import avatar from '@/assets/default.png'
</script>

<template>
    <el-container class="layout-container">
        <!-- 左侧菜单 -->
        <el-aside width="200px">
            <div class="el-aside__logo"></div>
            <el-menu active-text-color="#ffd04b" background-color="#232323"  text-color="#fff"
                router>
                <el-menu-item index="/article/category">
                    <el-icon>
                        <Management />
                    </el-icon>
                    <span>文章分类</span>
                </el-menu-item>
                <el-menu-item index="/article/manage">
                    <el-icon>
                        <Promotion />
                    </el-icon>
                    <span>文章管理</span>
                </el-menu-item>
                <el-sub-menu >
                    <template #title>
                        <el-icon>
                            <UserFilled />
                        </el-icon>
                        <span>个人中心</span>
                    </template>
                    <el-menu-item index="/user/info">
                        <el-icon>
                            <User />
                        </el-icon>
                        <span>基本资料</span>
                    </el-menu-item>
                    <el-menu-item index="/user/avatar">
                        <el-icon>
                            <Crop />
                        </el-icon>
                        <span>更换头像</span>
                    </el-menu-item>
                    <el-menu-item index="/user/resetPassword">
                        <el-icon>
                            <EditPen />
                        </el-icon>
                        <span>重置密码</span>
                    </el-menu-item>
                </el-sub-menu>
            </el-menu>
        </el-aside>
        <!-- 右侧主区域 -->
        <el-container>
            <!-- 头部区域 -->
            <el-header>
                <div>小学生程序员：<strong>小白</strong></div>
                <el-dropdown placement="bottom-end">
                    <span class="el-dropdown__box">
                        <el-avatar :src="avatar" />
                        <el-icon>
                            <CaretBottom />
                        </el-icon>
                    </span>
                    <template #dropdown>
                        <el-dropdown-menu>
                            <el-dropdown-item command="profile" :icon="User">基本资料</el-dropdown-item>
                            <el-dropdown-item command="avatar" :icon="Crop">更换头像</el-dropdown-item>
                            <el-dropdown-item command="password" :icon="EditPen">重置密码</el-dropdown-item>
                            <el-dropdown-item command="logout" :icon="SwitchButton">退出登录</el-dropdown-item>
                        </el-dropdown-menu>
                    </template>
                </el-dropdown>
            </el-header>
            <!-- 中间区域 -->
            <el-main>
                <router-view></router-view>
            </el-main>
            <!-- 底部区域 -->
            <el-footer>大事件 ©2023 Created by 黑马程序员</el-footer>
        </el-container>
    </el-container>
</template>

<style lang="scss" scoped>
.layout-container {
    height: 100vh;

    .el-aside {
        background-color: #232323;

        &__logo {
            height: 120px;
            background: url('@/assets/logo.png') no-repeat center / 120px auto;
        }

        .el-menu {
            border-right: none;
        }
    }

    .el-header {
        background-color: #fff;
        display: flex;
        align-items: center;
        justify-content: space-between;

        .el-dropdown__box {
            display: flex;
            align-items: center;

            .el-icon {
                color: #999;
                margin-left: 10px;
            }

            &:active,
            &:focus {
                outline: none;
            }
        }
    }

    .el-footer {
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        color: #666;
    }
}
</style>
```