从beta 18开始:

import {Location} from 'angular /platform/common';

试试routerLink = " - LASTPAGE”

<按钮返回按钮>返回</button>

你可以把它放到一个指令中，这个指令可以附加到任何可点击的元素上:

import { Directive, HostListener } from '@angular/core';
import { Location } from '@angular/common';

@Directive({
    selector: '[backButton]'
})
export class BackButtonDirective {
    constructor(private location: Location) { }

    @HostListener('click')
    onClick() {
        this.location.back();
    }
}

用法:

<button backButton>BACK</button>

另一个解决方案

window.history.back ();

用Angular 5.2.9测试过

如果你使用锚而不是按钮，你必须使用href="javascript:void(0)"将其设置为被动链接，以使Angular Location正常工作。

app.component.ts

import { Component } from '@angular/core';
import { Location } from '@angular/common';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent {

  constructor( private location: Location ) { 
  }

  goBack() {
    // window.history.back();
    this.location.back();

    console.log( 'goBack()...' );
  }
}

app.component.html

<!-- anchor must be a passive link -->
<a href="javascript:void(0)" (click)="goBack()">
  <-Back
</a>

这是我想出来的，你也可以查一下是否有上一页。 确保在你的appComponent中使用了这个服务。

import { Injectable } from '@angular/core';
import { Location } from '@angular/common';
import { NavigationEnd, Router } from '@angular/router';

interface HistoryData {
  previousPage: string | null,
  currentPage: string | null,
}

@Injectable({ providedIn: 'root' })
export class GoBackService {

  private historyData: HistoryData = { previousPage: null, currentPage: null };

  constructor(private router: Router, private location: Location) {
    this.router.events.subscribe((event) => {
      if (event instanceof NavigationEnd) {
        this.historyData.previousPage = this.historyData.currentPage;
        this.historyData.currentPage = event.urlAfterRedirects;
      }
    });
  }

  public goBack(): void {
    if (this.historyData.previousPage) this.location.back();
  }

  public canGoBack(): boolean {
    return Boolean(this.historyData.previousPage);
  }

}