用upoadify插件在spring mvc 框架下上传文件，总是报错500（internal server error）求指导~

Question

前端代码： <link rel="stylesheet" href="uploadify/uploadify.css"type="text/css"> <script src="assets/js/jquery-1.11.1.min.js"></script><script type="text/javascript" src="uploadify/swfobject.js"></script><script type="text/javascript" src="uploadify/jquery.uploadify.js"></script> $(document).ready(function(){    $("#mediaID01").uploadify({         'swf' : 'uploadify/uploadify.swf',        'uploader' : '../WxController/saveMediaInServer',//后台处理的请求        'cancelImg' : 'img/uploadify-cancel.png',        'folder' : 'newWxQyServer/img/',//您想将文件保存到的路径        'queueID' : 'fileQueue',//与下面的id对应        'queueSizeLimit' : 5,        'fileDesc' : 'Image Files (*.jpg;*.jpeg;*.gif;*.png)',        'fileExt' : '*.jpg;*.jpeg;*.gif;*.png', //控制可上传文件的扩展名，启用本项时需同时声明fileDesc        'auto' : false,        'multi' : true,        'simUploadLimit' : 2,        'buttonText' : '选择图片',        'buttonImg':'',        'method':'post',        'removeCompleted':false,}); <div id="fileQueue"></div> <input type="file" name="uploadify" id="mediaID01" /> <p><a href="javascript:jQuery('#mediaID01').uploadify('upload','*');">上传</a> </p> 后台代码： @RequestMapping(value = "/saveMediaInServer",method = RequestMethod.POST)    @ResponseBody    public List<String> saveMediaInServer(HttpServletRequest request, HttpServletResponse response,@RequestParam(value = "formData", required = false) String formData){        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;        List<String> responseStr= new ArrayList<String>();         Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();           // 创建文件夹          Map<String, Object> type = JSON.parseObject(formData, new TypeReference<Map<String, Object>>(){});        Date now=new Date();        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");        String filePath = "/upload/"+type.get("typeName")+"/"+dateFormat.format(now);        String path=request.getSession().getServletContext().getRealPath(filePath);        File file = new File(path);            if (!file.exists()) {                file.mkdirs();        }         for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) {              // 上传文件               MultipartFile mf = entity.getValue();            String filename=String.valueOf(System.currentTimeMillis()) + (int)(Math.random()*1000000);             File uploadFile = new File(path + filename);            try {                  FileCopyUtils.copy(mf.getBytes(), uploadFile);                  responseStr.add("上传成功");              } catch (IOException e) {                  responseStr.add("上传失败");                   e.printStackTrace();              }                 }        return responseStr; 求指导，感激不尽！

Answer 1

public List<String> saveMediaInServer(HttpServletRequest request, HttpServletResponse response,@RequestParam(value = "formData", required = false) String formData){
        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;

改成

public List<String> saveMediaInServer(MultipartHttpServletRequest multipartRequest, HttpServletResponse response){

这样试试

Answer 2

后台报错有没有指向是哪一行？

Answer 3

后台没有报错

Answer 4

@桂蓉氏: 能帮忙看下我的代码问题在哪么？

Answer 5

@shayusuf: getBytes()换成getInputStream()呢

Answer 6

@桂蓉氏: 改过来之后，有报错

Answer 7

@shayusuf: 用这句呢

FileUtils.copyInputStreamToFile(multipartFile.getInputStream(),file);

Answer 8

@桂蓉氏: 还是同样的错误呢

TTP Status 500 - Request processing failed; nested exception is java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest

type Exception report

message Request processing failed; nested exception is java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to org.springframework.web.multipart.MultipartHttpServletRequest

description The server encountered an internal error that prevented it from fulfilling this request.

Answer 9

@桂蓉氏: 您好，能看出问题出在哪么？

Answer 10

@shayusuf: 类型转换错误,无法将RequestFacade转换为MultipartHttpServletRequest