在Http请求的options中添加withCredentials属性为true

代码示例：

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

@Injectable({
  providedIn: 'root'
})
export class ApiService {
  private API_URL = 'https://example.com/api/';

  constructor(private http: HttpClient) { }

  callGetApi() {
    const options = {
      headers: new HttpHeaders().set('Content-Type', 'application/json'),
      withCredentials: true
    };

    return this.http.get(this.API_URL + 'getData', options);
  }

  callPostApi(data: any) {
    const options = {
      headers: new HttpHeaders().set('Content-Type', 'application/json'),
      withCredentials: true
    };

    return this.http.post(this.API_URL + 'postData', data, options);
  }
}