在SpringBoot控制器中接收/发送MultiRow数据和文件

Question

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我想在spring boot控制器中接收多行，尝试了不同的方法，但无法做到。我正在和邮递员测试。

控制器

@PostMapping(URLConstant.URL_SC_ATTACHMENT_POST)
public ResponseEntity<ApiResponse> storeFile(@RequestParam("attachmentDto") List<BudgetSceAttachmentDto> attachmentDto) throws IOException {
    System.out.println(attachmentDto);
    return ResponseUtil.getResponse(HttpStatus.OK, MsgConstant.BUDGET_MSG_FILE_UPLOADED, null);

}

DTO

private Integer versionId;

private String fileName;

private String pathUploadedFile;

private String uploadedFileName;

private MultipartFile file;

Answer 1

首先，request的content-type应该是multipart/form-data。

然后让我们简化这个问题-选中upload multiple file first。

@PostMapping(URLConstant.URL_SC_ATTACHMENT_POST)
public ResponseEntity<ApiResponse> storeFile(@RequestParam MultipartFile[] files) throws IOException {
    Assert.isTrue(files.length == 2, "files length should be 2");
    System.out.println(files.length);
    return ResponseUtil.getResponse(HttpStatus.OK, MsgConstant.BUDGET_MSG_FILE_UPLOADED, null);
}

如果它运行良好，现在是时候再次引入DTO了。

@PostMapping(URLConstant.URL_SC_ATTACHMENT_POST)
public ResponseEntity<ApiResponse> storeFile(@ModelAttribute List<BudgetSceAttachmentDto> params) throws IOException {
    Assert.isTrue(params.length == 2, "files length should be 2");
    System.out.println(params.length);
    return ResponseUtil.getResponse(HttpStatus.OK, MsgConstant.BUDGET_MSG_FILE_UPLOADED, null);
}