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Vue3TypeScript(6) - 實現路由守衛

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1. 實現路由守衛

主要的設計思維是在router的流程中進行驗證，我們來看如何修正src\router\index.ts檔案：

index.ts

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router.beforeEach((to,from,next) =>{
    const isLogin:boolean = localStorage.token ? true : false;
    
    // console.log(`isLogin:${isLogin}`);    
    // console.log(to.path);

    if(to.path ==='/')
    {        
        next('/login');        
    }
    else if(to.path === '/login' ){                
        next();
    }
    else {
        
        isLogin ? next() : next("/login");
    }
})

2. 完整程式碼

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

const routes: Array<RouteRecordRaw> =[
    {
        path:"/",
        name:"Login",
        component:() => import("../views/Login.vue")
    },
    {
        path:"/login",
        name:"Login",
        component:() => import("../views/Login.vue")
    },    
    {
        path:"/main",
        name:"Main",
        component:() => import("../views/Main.vue")
    },    
    {
        path:"/:catchAll(.*)",
        name:"404",
        component:() => import("../views/404.vue")
    }
]



const router = createRouter(
    {
        history: createWebHistory(),
        routes
    }
)

router.beforeEach((to,from,next) =>{
    const isLogin:boolean = localStorage.token ? true : false;
    
    // console.log(`isLogin:${isLogin}`);    
    // console.log(to.path);

    if(to.path ==='/')
    {        
        next('/login');        
    }
    else if(to.path === '/login' ){                
        next();
    }
    else {
        
        isLogin ? next() : next("/login");
    }
})

export default router