錯誤消息=必填MultipartFile參數「文件」不存在

Question

測試彈簧文件上傳表單中，controlelr簽名看起來像這樣

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

和測試這個

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

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

，但我得到的前面提到：錯誤消息=必需的MultipartFile參數'文件'不存在

Answer 1

您將參數命名爲「file」，並將n OT 「內容」：

變化：

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

要：

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