Angular 2獲得當前的防線路線

Question

我的項目中有一個AccessGuard類，它的工作是確定用戶是否可以訪問該路由。 我使用router.url來獲取當前路線但是url在導航到新路線之前返回路線，就像我在用戶路線中一樣，我點擊候選路線，所以url返回用戶而不是我想要的候選人驗證對路由的訪問權限這是我的路由文件：

const routes:Routes = [
{
    path:'',
    component:PanelComponent,
    canActivate:[AuthGuard,AccessGuard],
    canActivateChild:[AuthGuard,AccessGuard],
    children:[
        {
            path:'dashboard',
            component:DashboardComponent
        },
        {
            path:'users',
            component:UsersComponent
        },
        {
            path:'users/:id',
            component:ShowUserComponent
        },
        {
            path:'candidates',
            component:CandidatesComponent
        },
        {
            path:'permissions',
            component:PermissionsComponent
        },
        {
            path:'holidays',
            component:HolidaysComponent
        },
        {
            path:'candidate/:id',
            component:CandidateComponent
        },
        {
            path:'salary/create',
            component:InsertSalaryComponent
        },
        {
            path:'document/create',
            component:InsertDocumentComponent
        },
        {
            path:'leave/create',
            component:InsertLeaveComponent
        }
    ]
}

];

這是我的門衛：

permissions;
currentRoute;
constructor(private authService:AuthService,private router:Router){
    this.permissions = this.authService.getPermissions();
}

canActivate(){
    return this.checkHavePermission();
}

canActivateChild(){
    console.log(this.router.url);
    return this.checkHavePermission();
}

private checkHavePermission(){
    switch (this.router.url) {
        case "/panel/users":
            return this.getPermission('user.view');
        case '/panel/dashboard':
            return true;
        case '/panel/candidates':
            return this.getPermission('candidate.view');
        default:
            return true;
    }
}


getPermission(perm){
    for(var i=0;i<this.permissions.length;i++){
        if(this.permissions[i].name == perm ){
            return true;
        }
    }
    return false;
}

Answer 1

您需要使用方法參數來查看目標路由：

canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
  console.log(state.url);//'candidates'
}

canActivateChild(childRoute: ActivatedRouteSnapshot, state: RouterStateSnapshot)

Answer 2

這可以幫助你：

1. and : 導入和 ：

   import { Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot} from '@angular/router';

2. canActivate中的簽名 ：

   canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot):Observable {}

3. 檢查狀態 ：

   console.log("route-access",state);

您的Guard文件看起來像這樣：

    import { Injectable } from '@angular/core';
    import { Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot} from '@angular/router';
    import { Observable } from 'rxjs';
    import { AutenticacionService } from 'app/services/index';
    @Injectable()
    export class AuthGuard implements CanActivate {
        constructor(private _router: Router, private auth:AutenticacionService) {}
    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot):Observable<boolean> {
        // console.log("route-access",state);
        let _url:string="";
        state.url.split("/").forEach(element => {
            if(_url==="")
                if(element!=="")
                    _url=element;
        });
        // console.log(_url);
        return this.auth.check(_url)
          .map((result) => {
                    if (result) {
                        return true;
                    } else {
                        this._router.navigate(['/']);
                        return false;
                    }
                });  
    }

}

Answer 3

可以從RouterStateSnapshot返回當前URL，如下所示，

    import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from '@angular/router';    

    canActivate(next: ActivatedRouteSnapshot, state: RouterStateSnapshot){
      console.log(state.url);  
      ...
    }