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无法从角度路由器获取路径或URL

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我无法从ActivatedRoute获取URL或路径,也无法获取路由器导入 . 它为路径“”输出空白,为URL输出“/” . 我记得使用过工作版 . 唯一可以捕获Router.events正确路由的东西 . 我也无法订阅ActivatedRoute中的URL . 这是代码

import { Component, OnInit, ViewChild, ElementRef } from '@angular/core';
import { Router, ActivatedRoute, UrlSegment, NavigationStart, RoutesRecognized } from '@angular/router';

@Component({
  selector: 'api-dashboard',
  templateUrl: './dashboard.component.html',
  styleUrls: ['./dashboard.component.css']
})
export class DashboardComponent implements OnInit {

  routePath: string = '';

  constructor(
    private _r: Router,
    private _ar: ActivatedRoute) {
    this._r.events.subscribe((event: any) => {
      if (event instanceof RoutesRecognized) {
          // '/teams' output with route http://localhost:4200/teams
        console.log(event.url);
      }
      // NavigationStart // NavigationEnd // NavigationCancel // NavigationError // RoutesRecognized
    });

  }


  ngOnInit() {
    console.log(this._ar.pathFromRoot.toString()); // Blank output with route http://localhost:4200/teams
    console.log(this._ar.routeConfig.path.toString());  // Blank output with route http://localhost:4200/teams
    console.log(this._ar.snapshot.url);  // Blank output with route http://localhost:4200/teams
    this._ar.url.subscribe((urlsegment: UrlSegment[]) =>{
      console.log(urlsegment) // Unable to subscribe with route change to /teams
    })
  }

}

我在这里缺少什么?我看过这个Angular router url returns slash

我的路线:

const APPMainRoutes: Routes = [
    {path: '', redirectTo: '/login', pathMatch: 'full'},
    {path: 'teams', component: CollaborateComponent},
    {path: 'login', component: LoginComponent},
];

我的版本:

Angular CLI:6.1.4节点:10.7.0操作系统:linux x64 Angular:6.1.4 ...动画,cli,通用,编译器,编译器 - cli,核心,表单... http,语言服务,平台浏览器...平台浏览器动态,路由器

包版本

@ angular-devkit / architect 0.7.4 @ angular-devkit / build-angular 0.7.4 @ angular-devkit / build-optimizer 0.7.4 @ angular-devkit / build-webpack 0.7.4 @ angular-devkit / core 0.7 . 4 @ angular-devkit / schematics 0.7.4 @ angular / cdk 6.4.6 @ angular / material 6.4.6 @ ngtools / webpack 6.1.4 @ schematics / angular 0.7.4 @ schematics / update 0.7.4 rxjs 6.2.2 typescript 2.7.2 webpack 4.9.2

3 回答

  • 0

    你可以得到这样的网址信息:

    ngOnInit() {
        console.log(this._r.url);
      }
    

    如果你需要在url中获取queryParams你可以得到:

    this._r.snapshot.queryParamMap
    
  • 1

    你可以检查instanceof NavigationStartNavigationEnd

    这是一个例子

    app.component.ts

    import { Component, OnInit } from '@angular/core';
    import { Router, NavigationStart, NavigationEnd } from '@angular/router';
    
    export class AppComponent {
    
      constructor(private router: Router) { }
    
      ngOnInit() {
    
        this.router.events.subscribe((event: any) => {
          if(event instanceof NavigationStart) {
            console.log('start => ',event.url);
          }
          if(event instanceof NavigationEnd) {
            console.log('end => ',event.url);
          }
        });
      }
    }
    

    Stackblitz演示

  • 1

    我尝试访问url或路径的组件是组件树的主机/父/并行组件 . 上述所有故障都允许捕获路径组件的正确路径 inside ,而不是父/主机/并行树组件 . 只有Router.events在那里工作 . 令人惊讶的是,我无法在父/主机内捕获并使ActivatedRoute.url.subscribe工作 .

    <app-cmp>
    Router and ActivatedRoute does not Work here. Only Router.events Work here
    <router-outlet>
    <team-cmp>Router and ActivatedRoute Works here</team-cmp>
    </router-outlet>
    <sidebar-cmp>
    Router and ActivatedRoute does not Work here. Only Router.events Work here
    <sidebar-cmp>
    </app-cmp>
    

    这适用于主机/父/并行树 - 或:

    // inject in constructor
    constructor( private _router: Router) {
    
    // Call below anywhere within Init or Constructor etc
    this._router.events.subscribe((event: any) => {
          if (event instanceof RoutesRecognized) {
            console.log(event.url); // WORKS
          }
          // NavigationStart // NavigationEnd // NavigationCancel // NavigationError // RoutesRecognized
        });
    
    }
    

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