java - 错误消息 = 所需的 MultipartFile 参数“文件”不存在

Question

测试一个spring文件上传表单，controlelr签名长这样

@RequestMapping(value = "upload", method = RequestMethod.POST)
@ResponseBody
public void upload(@RequestParam("file") MultipartFile multipartFile) {}

和测试这个

final MockMultipartFile file 
  = new MockMultipartFile("content", "myFile.txt", "text/plain", "hello".getBytes());

MockHttpServletRequestBuilder mockHttpServletRequestBuilder = 
  .fileUpload("/upload/")
  .file(file)
  .accept(MediaType.APPLICATION_JSON);

但我得到上述：错误消息=所需的MultipartFile参数'文件'不存在

Answer 1

您将参数命名为“文件”而不是“内容”：

改变：

new MockMultipartFile("content", "myFile.txt", "text/plain", "hello".getBytes());

至：

new MockMultipartFile("file", "myFile.txt", "text/plain", "hello".getBytes());