java - 在春季使用 ResponseBody 上传图片

Question

我正在使用此代码上传图片，但我总是得到 415 Unsupported Media Type

@RequestMapping(value = "/updateImage" , method = RequestMethod.POST)
    public @ResponseBody ResponseMsg uploadFileHandler( 
            @RequestHeader(value="userid" ,required=false) String userid,
            @RequestHeader(value="name" ,required=false) String name,
            @RequestHeader(value="phone" ,required=false) Integer phone,
            @RequestBody MultipartFile multipartFile, 
            HttpServletRequest request) throws IllegalStateException, IOException {
        System.out.println("hi");
        String orgName = multipartFile.getOriginalFilename();
            orgName = CommonUtils.createUniqueFileName(orgName);

            ServletContext sc = request.getSession().getServletContext();
            String filePath = "uploadedImages/" + orgName;
            String completePath = sc.getRealPath("/") + "/" + filePath;
            File dest = new File(completePath);
            multipartFile.transferTo(dest);

            ResponseMsg responseMsg = CommonUtils.checkParam(userid, name, phone,filePath);
            if (responseMsg.getStatus().equalsIgnoreCase("True"))
                responseMsg = userService.updateProfile(userid, name, phone,filePath);
            return responseMsg;
    }

Answer 1

添加 servlet-context.xml

<beans:bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" />

在控制器中

公共无效方法（@RequestParam MultipartFile 文件）{..}

Answer 2

• 您的应用程序上下文中是否有MultipartResolver ，例如： CommonsMultipartResolver？
• 你有HttpMessageConverter将 HTTP 请求正文转换为 MultipartFile 吗？默认情况下，Spring 不附带此功能。阅读http://static.springsource.org/spring/docs/3.2.x/spring-framework-reference/html/mvc.html#mvc-ann-requestbody
• 在我看来，与其映射整个 HTTP 请求（例如：）@RequestBody MultipartFile multipartFile，不如只映射特定的表单字段，例如：@RequestParam('someFileUpload') MultipartFile uploadedFile，这是假设您在 html 表单中使用文件选择，例如：<input type="file" name="someFileUpload"/>