Question

我创建了一个使用javax.ws.rs工作得很好的照片上传器。这是它的标志性和基本要点：

@POST
@Path("/upload/photo")
@Consumes("multipart/form-data")
@Produces("application/json")
public String uploadPhoto(InputStream stream){
        try {
            int read = 0;
            FileOutputStream fos = new FileOutputStream(file);
            CountingOutputStream out = new CountingOutputStream(fos);
            byte[] bytes = new byte[MAX_UPLOAD_SIZE];

            while ((read = stream.read(bytes)) != -1) {
                out.write(bytes, 0, read);
            }
            out.flush();
            out.close();
        } catch (IOException e) {
            // TODO throw!
            e.printStackTrace();
        }
    //...
}

我可以使用apache.commons.httpClient库测试这个：

    @Test
    public void testUpload() {

        int statusCode = 0;
        String methodResult = null;

        String endpoint = SERVICE_HOST + "/upload/photo";

        PostMethod post = new PostMethod(endpoint);

        File file = new File("/home/me/Desktop/someFolder/image.jpg");

        FileRequestEntity entity = new FileRequestEntity(file, "multipart/form-data");

        post.setRequestEntity(entity);

        try {
            httpClient.executeMethod(post);
            methodResult = post.getResponseBodyAsString();
        } catch (HttpException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        statusCode = post.getStatusCode();

        post.releaseConnection();
            //...
    }

这很棒！问题是应用程序的其余部分是使用Spring MVC编写的。当我使用Spring Mock MVC测试框架时，程序就会挂起（显示在这个下面的代码片段中）。以下是上传者的SpringMVC代码：

@ResponseBody
@RequestMapping(    produces="application/json",
                    consumes="multipart/form-data",
                    method=RequestMethod.POST,
                    value="/photo")
public String uploadPhoto(@RequestPart("file") MultipartFile multipartFile){

            try {
                int read = 0;
                FileOutputStream fos = new FileOutputStream(file);
                CountingOutputStream out = new CountingOutputStream(fos);
                byte[] bytes = new byte[MAX_UPLOAD_SIZE];

                while ((read = multipartFile.getInputStream().read(bytes)) != -1) {
                    out.write(bytes, 0, read);
                }

                out.flush();
                out.close();

            } catch (IOException e) {
                // TODO throw!
                e.printStackTrace();
            }
            //...
}

以下是我使用Spring Mock MVC实现测试的内容。我认为问题与使用fileUpload（...）有关。有没有办法测试使用正常的帖子（..），就像我可以用apache？我更喜欢使用InputStream作为参数，并避免使用MultipartFile。

@Test
public void testUpload() throws Exception {

    String endpoint = BASE_URL + "/upload/photo";

    FileInputStream fis = new FileInputStream("/home/me/Desktop/someFolder/image.jpg");
    MockMultipartFile multipartFile = new MockMultipartFile("file", fis);

    mockMvc.perform(fileUpload(endpoint)
            .file(multipartFile)
            .contentType(MediaType.MULTIPART_FORM_DATA))
            .andExpect(status().isOk());

}

理想情况下，我想使用Spring MVC和Spring Mock MVC框架，但我提供的代码只是挂在while语句中。就Spring测试中使用fileUpload方法而言，我正在做的是什么？任何建议都表示赞赏。

Answer 1

要向模拟帖子请求添加内容，请使用content（bytes []）
媒体类型参数边界是必要的

此外，使用java.io中的普通旧InputStream作为upload方法的参数是安全的，并且仍然在请求中使用MockMultipartFile。

@Test
public void testUpload() throws Exception {

            String endpoint = BASE_URL + "/upload/photo";

            FileInputStream fis = new FileInputStream("/home/me/Desktop/someDir/image.jpg");
            MockMultipartFile multipartFile = new MockMultipartFile("file", fis);

            HashMap<String, String> contentTypeParams = new HashMap<String, String>();
            contentTypeParams.put("boundary", "265001916915724");
            MediaType mediaType = new MediaType("multipart", "form-data", contentTypeParams);

            mockMvc.perform(
                    post(endpoint)
                    .content(multipartFile.getBytes())
                    .contentType(mediaType))
                    .andExpect(status().isOk());
}

Answer 2

MockMvcRequestBuilders.fileUpload：

@Test
public void uploadTest() throws Exception {
    String endpoint = "/service/productsale/5/upload";
    FileInputStream fis = new FileInputStream("E:\\test\\test.jpg");
    MockMultipartFile multipartFile = new MockMultipartFile("file",fis);

    mockMvc.perform(MockMvcRequestBuilders.fileUpload(endpoint).file(multipartFile))
            .andExpect(MockMvcResultMatchers.model().attributeExists("imageVo"))
            .andDo(print())
            .andExpect(status().isOk());
}

Answer 3

通过引用document，下面的代码可以更简单。

@Test
public void testFileUpload() throws Exception {
    FileInputStream input = new FileInputStream("/Downloads/WX.png");
    MockMultipartFile file = new MockMultipartFile(
            "image",
            "WX20180207-134704@2x.png",
            "image/png",
            input);
    this.mockMvc
            .perform(
                multipart("/api/note/image/create")
                        .file(file)
                        .header("Authorization", "BearereyJhbGciOiJIUzUxMiJ9")
            );
}

Answer 4

此链接帮助了我：https://samerabdelkafi.wordpress.com/2014/08/03/spring-mvc-full-java-based-config/

更具体地说，这个配置： @override

public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
    configurer.enable();
}

如何使用SpringMVC和MockMVC发布文件上载的multipart / form-data

4 个答案: