在angular 7中注销后如何重新加载数据？

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Injectable({
  providedIn: 'root'
})
export class DataService {
  private data: any[];

  constructor(private http: HttpClient) { }

  public reloadData(): void {
    // 执行重新加载数据的逻辑，例如重新发起HTTP请求获取最新数据
    this.http.get('api/data').subscribe((response: any[]) => {
      this.data = response;
    });
  }

  public getData(): any[] {
    return this.data;
  }
}

import { Component, OnInit } from '@angular/core';
import { DataService } from 'path/to/data.service';

@Component({
  selector: 'app-example',
  templateUrl: './example.component.html',
  styleUrls: ['./example.component.css']
})
export class ExampleComponent implements OnInit {
  public data: any[];

  constructor(private dataService: DataService) { }

  ngOnInit(): void {
    this.data = this.dataService.getData();
  }

  public logout(): void {
    // 执行注销逻辑，例如清除用户信息等
    // 调用DataService的reloadData方法重新加载数据
    this.dataService.reloadData();
    this.data = this.dataService.getData();
  }
}