如何在Ember中发送文件是POST请求？现在只发送文件名

import { inject as service } from '@ember/service';
import Controller from '@ember/controller';

export default Controller.extend({
  ajax: service(),

  actions: {
    async uploadFile(file) {
      let formData = new FormData();
      formData.append('file', file);

      try {
        await this.ajax.request('/upload', {
          method: 'POST',
          data: formData,
          processData: false,
          contentType: false
        });

        console.log('File uploaded successfully!');
      } catch (error) {
        console.error('Error uploading file:', error);
      }
    }
  }
});