onSameUrlNavigation

從angular5.1起提供onSameUrlNavigation來支持路由重新加載。

有兩個值'reload'和'ignore'。默認為'ignore'

定義當路由器收到一個導航到當前 URL 的請求時應該怎么做。 默認情況下，路由器將會忽略這次導航。但這樣會阻止類似于 "刷新" 按鈕的特性。 使用該選項可以配置導航到當前 URL 時的行為。

使用

配置onSameUrlNavigation

@NgModule({ imports: [RouterModule.forRoot(  routes,  { onSameUrlNavigation: 'reload' } )], exports: [RouterModule]})

reload實際上不會重新加載路由，只是重新出發掛載在路由器上的事件。

配置runGuardsAndResolvers

runGuardsAndResolvers有三個值：

const routes: Routes = [ {  path: '',  children: [   { path: 'report-list', component: ReportListComponent },   { path: 'detail/:id', component: ReportDetailComponent, runGuardsAndResolvers: 'always' },   { path: '', redirectTo: 'report-list', pathMatch: 'full' }  ] }];

組件監聽router.events

import {Component, OnDestroy, OnInit} from '@angular/core';import {Observable} from 'rxjs';import {Report} from '@models/report';import {ReportService} from '@services/report.service';import {ActivatedRoute, NavigationEnd, Router} from '@angular/router';@Component({ selector: 'app-report-detail', templateUrl: './report-detail.component.html', styleUrls: ['./report-detail.component.scss']})export class ReportDetailComponent implements OnInit, OnDestroy { report$: Observable<Report>; navigationSubscription; constructor(  private reportService: ReportService,  private router: Router,  private route: ActivatedRoute ) {  this.navigationSubscription = this.router.events.subscribe((event: any) => {   if (event instanceof NavigationEnd) {    this.initLoad(event);   }  }); } ngOnInit() {  const id = +this.route.snapshot.paramMap.get('id');  this.report$ = this.reportService.getReport(id); } ngOnDestroy(): void {  // 銷毀navigationSubscription，避免內存泄漏  if (this.navigationSubscription) {   this.navigationSubscription.unsubscribe();  } } initLoad(e) {  window.scrollTo(0, 0);  console.log(e); }}

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