如何从Angular服务接收来自ASP.NET Core Web API的文件并在不同的chrome选项卡中显示

[HttpPost]
public async Task<IActionResult> UploadFile(IFormFile file)
{
    // 处理文件上传逻辑，保存文件并返回文件URL或其他标识符
    // ...
    string fileUrl = "https://example.com/file-url";
    return Ok(fileUrl);
}

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

@Injectable()
export class FileUploadService {
  constructor(private http: HttpClient) {}

  uploadFile(file: File): Observable<string> {
    const formData = new FormData();
    formData.append('file', file);

    return this.http.post<string>('https://example.com/upload', formData);
  }
}

import { Component } from '@angular/core';
import { FileUploadService } from './file-upload.service';

@Component({
  selector: 'app-file-upload',
  templateUrl: './file-upload.component.html',
  styleUrls: ['./file-upload.component.css']
})
export class FileUploadComponent {
  constructor(private fileUploadService: FileUploadService) {}

  onFileSelected(event: any) {
    const file: File = event.target.files[0];
    this.fileUploadService.uploadFile(file)
      .subscribe(fileUrl => {
        window.open(fileUrl, '_blank');
      });
  }
}

<input type="file" (change)="onFileSelected($event)">