http 上传文件

PostMethod filePost = new PostMethod(url);
           filePost.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"utf-8");
         try
         {
         //通过以下方法可以模拟页面参数提交
         //filePost.setParameter("accountId", "4535435asdf");
         //filePost.setParameter("pass", "1234");URLEncoder.encode(param, "UTF-8")
           Part[] parts1 = {new StringPart("param", URLEncoder.encode(param, "UTF-8")), new FilePart(file.getName(), file)};
            filePost.setRequestEntity(new MultipartRequestEntity(parts1,filePost.getParams()));
            HttpClient client = new HttpClient();
            client.getHttpConnectionManager().getParams().setConnectionTimeout(8000);
         int status = client.executeMethod(filePost);
         if (status == HttpStatus.SC_OK)
         {
         return filePost.getResponseBodyAsString();
         // 上传成功
         }
         else
         {
         return "{\"state\":-1,\"msg\":\"上传失败.\",\"data\":[{}]}";
         // 上传失败
         }
         }
         catch (Exception ex)
         {
             return "{\"state\":-1,\"msg\":\"上传失败.\",\"data\":[{}]}";
         }
         finally
         {
               filePost.releaseConnection();
         }

接收文件及其普通文本

String charset = "UTF-8";
            DiskFileItemFactory factory = new DiskFileItemFactory();
            // 设置内存缓冲区，超过后写入临时文件
            factory.setSizeThreshold(10240000);
            // 设置临时文件存储位置
            String tmpPath = LinkupManager.paramMap.get("voicePath");
            //获取日期
            String ymd = DateHandler.date2String(new Date(), "yyyyMMdd");
            tmpPath=tmpPath+ymd+File.separator;
            //tmpPath = LinkupManager.rootPath+tmpPath;
            File file = new File(tmpPath);
            if(!file.exists()){
                file.mkdirs();
            }
            factory.setRepository(file);
            ServletFileUpload upload = new ServletFileUpload(factory);
            // 设置单个文件的最大上传值
            upload.setFileSizeMax(10002400000l);
            // 设置整个request的最大值
            upload.setSizeMax(10002400000l);
            upload.setHeaderEncoding(charset);
            request.setCharacterEncoding(charset);
            res.setCharacterEncoding(charset);

                List<?> items = upload.parseRequest(request);
                if(items==null && items.size()!=2){
                    obj = new ResultObj(ResultObj.FAIL, "上传文件只能由1个文件跟1条内容Json组成.", null);
                    return obj.toJson();
                }
                FileItem item = null;
                for (int i = 0 ;i < items.size(); i++){
                    item = (FileItem) items.get(i);
                    if(item.getFieldName().equals("param")){
                        param = URLDecoder.decode(item.getString(charset), charset);
                        map.put("param", param);
                        if(param==null || param.equals("")){
                            obj = new ResultObj(ResultObj.FAIL, "Json内容不能为空.", null);
                            return obj.toJson();
                        }
                    }
                    // 保存文件
                    if (!item.isFormField() && item.getName().length() > 0) {
                        String suffixName = item.getName().substring(item.getName().lastIndexOf("."));
                        String newName=createPhotoID()+suffixName.toLowerCase();
                        tpmFilePathName = tmpPath + newName;
                        item.write(new File(tpmFilePathName));
                        File big = new File(tpmFilePathName);
                        String md5=MD5FileUtil.getFileMD5String(big);
                        map.put("filePath", File.separator+ymd+File.separator+newName);
                        map.put("MD5Code", md5);
                    }
            }