重定向 redirect

1. 字符串形式配置，访问/ 重定向到 /user （地址栏显示/,内容为/user路由的内容）

const routes: Array<RouteRecordRaw> = [
    {
        path:'/',
        component:()=> import('../components/root.vue'),
        redirect:'/user1',
        children:[
            {
                path:'/user1',
                components:{
                    default:()=> import('../components/A.vue')
                }
            },
            {
                path:'/user2',
                components:{
                    bbb:()=> import('../components/B.vue'),
                    ccc:()=> import('../components/C.vue')
                }
            }
        ]
    }
]

 2.对象形式配置

const routes: Array<RouteRecordRaw> = [
    {
        path: '/',
        component: () => import('../components/root.vue'),
        redirect: { path: '/user1' },
        children: [
            {
                path: '/user1',
                components: {
                    default: () => import('../components/A.vue')
                }
            },
            {
                path: '/user2',
                components: {
                    bbb: () => import('../components/B.vue'),
                    ccc: () => import('../components/C.vue')
                }
            }
        ]
    }
]

3.函数模式（可以传参）

const routes: Array<RouteRecordRaw> = [
    {
        path: '/',
        component: () => import('../components/root.vue'),
        redirect: (to) => {
            return {
                path: '/user1',
                query: to.query
            }
        },
        children: [
            {
                path: '/user1',
                components: {
                    default: () => import('../components/A.vue')
                }
            },
            {
                path: '/user2',
                components: {
                    bbb: () => import('../components/B.vue'),
                    ccc: () => import('../components/C.vue')
                }
            }
        ]
    }
]

别名 alias

将 / 别名为 /root，意味着当用户访问 /root时，URL 仍然是 /user，但会被匹配为用户正在访问 /

const routes: Array<RouteRecordRaw> = [
    {
        path: '/',
        component: () => import('../components/root.vue'),
        alias:["/root","/root2","/root3"],
        children: [
            {
                path: 'user1',
                components: {
                    default: () => import('../components/A.vue')
                }
            },
            {
                path: 'user2',
                components: {
                    bbb: () => import('../components/B.vue'),
                    ccc: () => import('../components/C.vue')
                }
            }
        ]
    }
]