Question

我的项目中有一个AccessGuard类，它的工作是确定用户是否可以访问路由。我使用router.url来获取当前路线但是url在导航到新路线之前返回路线，就像我在用户路线中一样，我点击了候选路线，所以url返回用户而不是我的候选人想要验证对路线的访问权限这是我的路线档案：

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
        }
    ]
}

];

这是我的门卫：

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

您需要使用方法参数来查看目标路线：

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

canActivateChild(childRoute: ActivatedRouteSnapshot, state: RouterStateSnapshot)

Answer 2

这可以帮到你：

导入 ActivatedRouteSnapshot 和 RouterStateSnapshot ：

import { Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot} from '@angular/router';
canActivate 中的签名：

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

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

你的Guard文件看起来像这样：

    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

可以从RouterStateSnapshot返回当前URL，如下所示，

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

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

Angular 2获得后卫

3 个答案: