Java 如何使用MockMvc为DefaultMultipartTTpServletRequest控制器方法编写单元测试？

代码如下：

@RequestMapping(value = "/upload/{resource}",method=RequestMethod.POST)
@ResponseBody
public Object uploadfileUpload(@PathVariable("resource") String resource,DefaultMultipartHttpServletRequest request,HttpServletResponse resp,MultipartFile file) throws IOException {
    ......
}

在守则中：

this.mockMvc.perform(mockMultipartHttpServletRequestBuilder)

只能发布MultipartAttpServletRequest，因为MockMultipartAttpServletRequestBuilder实现MultipartAttpServletRequest。MultipartTTpServletRequest是一个接口

如何创建DefaultMultipartTTpServletRequest类对象，然后在mockMvc中发布请求以完成单元测试

@Test
public void testUploadARA3() throws Exception {
    FileInputStream file = new FileInputStream(
            "C:/test_42873.xlsm");
    MockMultipartFile multipartFile = new MockMultipartFile(
            "test_42873.xlsm", file);
    MockMultipartHttpServletRequestBuilder mockMultipartHttpServletRequestBuilder = (MockMultipartHttpServletRequestBuilder) fileUpload(
            "/upload/{resource}", "ARA").accept(MediaType.ALL);
    mockMultipartHttpServletRequestBuilder.file(multipartFile);
    //mockMultipartHttpServletRequestBuilder.content("whatever");

    MockHttpServletRequest request;
    MvcResult response =   this.mockMvc.perform(mockMultipartHttpServletRequestBuilder).andDo(print())
            .andExpect(status().isOk()).andReturn();
    System.out.println(response.getResponse().getContentAsString());

}

---

我的测试代码没有输入uploadfileUpload Method。

开始阅读教程；和实验。而不是仅仅把你的需求放在这里，期待其他人为你做这些。欢迎您提出一些具体问题，比如这是我的代码，但它在这里和那里都不起作用……this.mockMvc=MockMvcBuilders.webAppContextSetupthis.wac.build；