Spring Boot Jhipster图像上传不起作用

Question

我想从 Angular 上传图片和其他一些带有表单的东西。这是虚拟机对象：

public class UserPictureVM {

    private MultipartFile file;

    private String type;

    private String coverPosition;

这是休息方法：

 @PostMapping("/user/upload-picture")
 @Timed 
 public ResponseEntity<Void> uploadUserPicture(@RequestBody UserPictureVM userPicture){

这是提交表单的 Angular 方法：

saveCoverImage() {
    const formData: FormData = new FormData();

    formData.append('coverPosition', '0, 0');
    formData.append('file', this.coverForm.file);
    formData.append('type', 'cover');

    this.profileService.uploadImages(formData)
      .subscribe(res=> {
        console.log(res);
      })
  }

但我得到错误：

Resolved exception caused by Handler execution: org.springframework.web.HttpMediaTypeNotSupportedException: Content type 'multipart/form-data;charset=UTF-8' not supported

Answer 1

您正在提交带有 3 个请求参数的表单。因此，您应该将控制器方法签名更改为：

  public ResponseEntity<Void> uploadUserPicture(
      @RequestParam("coverPosition") String coverPosition,
      @RequestParam("file") MultipartFile file,
      @RequestParam("type") String type)