Question

使用Dropzone.js时出错

客户端：

  Dropzone.options.myDropzone = {
    url: 'http://localhost:8098/uploadMultipleFiles',
    paramName:"files",
    autoProcessQueue: false,
    uploadMultiple: true,
    parallelUploads: 5,
    maxFiles: 5,
    maxFilesize: 1,
    method: 'post',
    acceptedFiles: 'image/*',
    addRemoveLinks: true,
    init: function() {
      dzClosure = this; // Makes sure that 'this' is understood inside the functions below.
      document.getElementById("submit-all").addEventListener("click", function(e) {
        e.preventDefault();
        e.stopPropagation();
        dzClosure.processQueue();
      });

      this.on("success", function(file, responseText) {
          // console.log(file);
          console.log(responseText);
      });

        //send all the form data along with the files:
      this.on("sendingmultiple", function(data, xhr, formData) {
          formData.append("folderSaved", jQuery("#folderSaved").val());
      });
    }
  }

<form action="" enctype="multipart/form-data" method="POST">
    <input type="text" id ="folderSaved" name ="folderSaved" value="D:\Intellegent\AppSpringBoot\input\test1" />
    <div class="dropzone" id="myDropzone"> </div>
 
    <button type="submit" id="submit-all"> upload </button>
</form>

所有在服务器端java之后的测试：

    @PostMapping("/uploadFile")
public UploadFileResponse uploadFile(@RequestParam("file") MultipartFile file, @RequestParam("folderSaved") Path folderSaved) {
    String fileName = fileStorageService.storeFile(file, folderSaved);
    String fileDownloadUri = ServletUriComponentsBuilder.fromCurrentContextPath()
            .path("/downloadFile/")
            .path(fileName)
            .toUriString();
    return new UploadFileResponse(fileName, fileDownloadUri,
            file.getContentType(), file.getSize());
}
@PostMapping("/uploadMultipleFiles")
public List<UploadFileResponse> uploadMultipleFiles(@RequestParam("files") MultipartFile[] files, @RequestParam("folderSaved") Path folderSaved {System.out.println(files[0].getOriginalFilename());
    System.out.println(folderSaved);
    return Arrays.asList(files)
            .stream()
            .map(file -> uploadFile(file, folderSaved))
            .collect(Collectors.toList());
}

当我将DropzoneJs用于UI并在服务器端的第500行出现错误

System.out.println(files[0].getOriginalFilename());

但是，当使用简单代码或邮递员测试手册（无DropzoneJs插件）时没有问题

使用DropzoneJs时，Java服务器端无法捕获文件

0 个答案: