Angular2:如何用路由器"重新加载"页面(重新检查canActivate)？

Question

我有canActivate: [ AuthGuard ]里面的路由器和验证AuthGuard

如何强制检查canActivate相同的路由器URL？

例如:当前路线是/admin,我有事件喜欢session expired.我有会话签入,AuthGuard但只有在我执行时才会激活此检查.navigate(...).如何强制canActivate在同一地点运行？

我试过了:this.router.navigate([ this.router.url ]);但角度检查相同的位置,什么都不做.

ps我可以找到"登录页面"或其他页面session expired event,但我有所有重定向内部AuthGuard,我不想在所有其他事件中重复相同的重定向,我只需要location.reload()在Angular2路线中.

主要问题听起来像:如何强制canActivate在当前位置重新运行警卫？

Answer 1

我的临时解决方案：

auth.service.ts

import { Injectable, Injector } from '@angular/core';
import { ActivatedRoute, Router, RouterStateSnapshot } from '@angular/router';

@Injectable()
export class AuthService {

  constructor(private route: ActivatedRoute,
              private router: Router,
              private injector: Injector) {
    this.forceRunAuthGuard();
  }

  // Dirty hack for angular2 routing recheck
  private forceRunAuthGuard() {
    if (this.route.root.children.length) {
      // gets current route
      const curr_route = this.route.root.children[ '0' ];
      // gets first guard class
      const AuthGuard = curr_route.snapshot.routeConfig.canActivate[ '0' ];
      // injects guard
      const authGuard = this.injector.get(AuthGuard);
      // makes custom RouterStateSnapshot object
      const routerStateSnapshot: RouterStateSnapshot = Object.assign({}, curr_route.snapshot, { url: this.router.url });
      // runs canActivate
      authGuard.canActivate(curr_route.snapshot, routerStateSnapshot);
    }
  }

}

app.routes.ts

  { path: 'faq', canActivate: [ AuthGuard ], component: FaqComponent },
  { path: 'about', canActivate: [ AuthGuard ], component: AboutUsComponent },
  { path: 'upgrade', canActivate: [ AuthGuard ], component: UpgradeComponent },

此代码AuthGuard再次运行。