在angular2中发送包含文件和布尔值的表单数据

import { Component } from '@angular/core';
import { Http, Headers, RequestOptions } from '@angular/http';

@Component({
  selector: 'app-form',
  templateUrl: './form.component.html',
  styleUrls: ['./form.component.css']
})
export class FormComponent {
  constructor(private http: Http) { }

  onSubmit(formData: any) {
    let file: File = formData.file;
    let boolValue: boolean = formData.boolValue;

    let formDataToSend: FormData = new FormData();
    formDataToSend.append('file', file);
    formDataToSend.append('boolValue', boolValue.toString());

    let headers = new Headers();
    let options = new RequestOptions({ headers: headers });

    this.http.post('your-api-endpoint', formDataToSend, options)
      .subscribe(response => {
        console.log(response);
      });
  }
}

<form (ngSubmit)="onSubmit(form.value)" #form="ngForm">
  <input type="file" name="file" ngModel>
  <input type="checkbox" name="boolValue" ngModel>

  <button type="submit">Submit</button>
</form>