angular - 是否可以将 FormData 与图像文件一起从 Angular 6 应用程序发送到 Web API

Question

是否可以将表单数据与图像文件一起从 Angular 6 应用程序传递到 Web api。

app.component.ts

onSelectFile(event) {
  if (event.target.files && event.target.files[0]) {
    this.imageToUpload = event.target.files[0];
    const reader = new FileReader();
    reader.onload = e => this.selectedImage = reader.result.toString();
    this.fileName = event.target.files[0].name;
    reader.readAsDataURL(this.imageToUpload);
  }
}

createNewComitteeMember() {
  var mServiceObject = {
    ComitteeMemberName: this.comittee_Member_Name.value,
    ComitteeMemberNumber: this.comittee_Member_Number.value,
    ComitteeMemberType: this.comittee_Type.value,
    ComitteeMemberTypeOthers: this.comittee_Type_Others.value,

    ComitteeMemberPosition: this.comittee_Member_Position.value,
    ComitteeMemberPositionOthers: this.comittee_Member_Position_Others.value,
    ComitteeMemberStatus: this.comittee_Member_Status.value
  }

  this.dmlService.CreateNewComitteeMember(mServiceObject, this.imageToUpload ).subscribe(data => {
    console.log(data);

  });
}

服务.ts

CreateNewComitteeMember(mFormData,mImage){
// here how can I merge the mFormData and mImage and pass it to the web API
}

谁能帮我解决这个问题。

标签： angulartypescriptangular6angular4-forms

Answer 1

你可以在这里使用 FormData

CreateNewComitteeMember(mFormData,mImage){
  const HttpUploadOptions = {
    headers: new HttpHeaders({ "Content-Type": "multipart/form-data"})
  }
  const formData = new FormData();
  formData.append('data', mFormData);
  formData.append('image', mImage);
  return this.httpClient.post(url, formData, HttpUploadOptions)
}

有关FormData的更多信息