角4。X及以上:

这可以通过使用ActivatedRoute类的url属性来实现，如下所示:

this.activatedRoute.url.subscribe(url =>{
     console.log(url);
});

注意: 你需要从angular/router包中导入和注入提供商

import { ActivatedRoute } from '@angular/router`

and

constructor(private activatedRoute : ActivatedRoute){  }

如果您只是想检查路由/查询参数更改，如localhost:4200/users/1?编辑=1到localhost:4200/users/2?Edit =0你可以像下面这样使用可观察的参数。

import { ActivatedRoute, Params } from '@angular/router';
export class SomeClass implements OnInit {

paramFromRoute;

constructor(private route: ActivatedRoute) { }

ngOnInit() {
  this.paramFromRoute = this.route.snapshot.params['paramName']; // this one is required for getting it first time

  this.route.params.subscribe((params:Params)=>{
    this.paramFromRoute =  params['paramName'] // whenever route is changed, this function will triggered.
  });
  // for queryParams you can subscribe to this.route.queryParams
 }   
}

简单的答案 角8。*

constructor(private route:ActivatedRoute) {
  console.log(route);
}

我会这样写:

ngOnInit() {
this.routed = this.router.events.map( event => event instanceof NavigationStart )
  .subscribe(() => {
  } );
}

ngOnDestroy() {
this.routed.unsubscribe();
}

更清晰的方法是继承RouteAware并实现onNavigationEnd()方法。

它是一个名为@bespunky/angular-zen的库的一部分。

NPM install @bespunky/angular-zen 让你的AppComponent扩展RouteAware并添加一个onNavigationEnd()方法。

import { Component     } from '@angular/core';
import { NavigationEnd } from '@angular/router';
import { RouteAware    } from '@bespunky/angular-zen/router-x';

@Component({
    selector   : 'app-root',
    templateUrl: './app.component.html',
    styleUrls  : ['./app.component.css']
})
export class AppComponent extends RouteAware
{    
    protected onNavigationEnd(event: NavigationEnd): void
    {
        // Handle authentication...
    }
}

RouteAware还有其他好处，比如: ✨任何路由器事件都可以有处理程序方法(Angular支持的路由器事件)。 ✨使用这个。路由器访问路由器 ✨使用这个。访问激活路由的路由 ✨使用this.componentBus访问RouterOutletComponentBus服务

在angular 6和RxJS6中:

import { filter, debounceTime } from 'rxjs/operators';

 this.router.events.pipe(
      filter((event) => event instanceof NavigationEnd),
      debounceTime(40000)
    ).subscribe(
      x => {
      console.log('val',x);
      this.router.navigate(['/']); /*Redirect to Home*/
}
)