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                             網站中有些頁面必須登錄才能訪問，比如：下訂單頁面！

使用的技術：**`路由導航守衛！`**

路由導航守衛：在每次跳轉頁面時就會被調用的的一個函數！！
 所以我們需要在每次跳轉頁面時判斷是否登錄，如果沒有登錄就不允許訪問某些頁面！

具體使用：
修改 router/index.js 路由文件：

1. 添加路由導航守衛代碼
![](https://img.kancloud.cn/46/99/469918a3249e22ab7eff0c8bcd1a9733_1348x1454.png)

2. 在必須要登錄才能訪問的路由上添加 meta 屬性即可
![](https://img.kancloud.cn/88/03/880336bbcc5eec197f7ae0c945861f45_1534x1352.png)








                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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