String status="";//标识符
    		String message="";//标识符
    		News news = new News();
    		String fieldName = "";//表单元素name属性值
    		boolean isMultipart = ServletFileUpload.isMultipartContent(request);//判断是否是二进制上传类型
    		//上传到服务器的路径
    		String uploadFilePath = request.getSession().getServletContext().getRealPath("upload/");
    		//如果这个路径不存在（主要是这个上传到的文件夹）
    		File uploadFile = new File(uploadFilePath);
    		if(!uploadFile.exists()){
    			uploadFile.mkdirs();
    		}
    		if(isMultipart){
    			//创建工厂
    			FileItemFactory factory = new DiskFileItemFactory();
    			//创建文件上传对象
    			ServletFileUpload upload = new ServletFileUpload(factory);
    			//设定一次请求最大上传字节数
    			upload.setSizeMax(1024*1024*5);
    			try{
    				//解析form表单中的数据
    				List<FileItem> items = upload.parseRequest(request);
    				//用迭代器遍历这个集合
    				Iterator<FileItem> iter = items.iterator();
    				FileItem item = null;
    				boolean isunallowedType = false;//是否是不允许的类型
    				File saveFile = null;//要上传的文件对象
    				while(iter.hasNext()){
    					item = iter.next();
    					//判断这个对象是否是普通表单字段
    					if(item.isFormField()){
    						//普通字段
    						//获取表单name属性值
    						fieldName = item.getFieldName();
    						if("ntid".equals(fieldName)){
    							if(Integer.parseInt(item.getString("utf-8"))==0){
    								//主题没有选
    								/*out.print("<script type='text/javascript'>");
    								out.print("alert('请选择主题！');");
    								out.print("location.href='"+request.getContextPath()+"/newsServlet?opr=loadNewsAddTopicList';");
    								out.print("</script>");*/
    								status="exist";
    								message="请选择主题！";
    								out.print("[{\"status\":\""+status+"\",\"message\":\""+message+"\"}]");
    								return;
    							}
    							news.setNtid(Integer.parseInt(item.getString("utf-8")));//封装主题编号
	    					}else if("ntitle".equals(fieldName)){
	    						news.setNtitle(item.getString("utf-8"));
	    					}else if("nauthor".equals(fieldName)){
	    						news.setNauthor(item.getString("utf-8"));
	    					}else if("nsummary".equals(fieldName)){
	    						news.setNsummary(item.getString("utf-8"));
	    					}else if("ncontent".equals(fieldName)){
	    						news.setNcontent(item.getString("utf-8"));
	    					}
    					}else{
    						//文件字段
    						String fileName = item.getName();
    						if(fileName.length()>0){
    							//限定类型
    							List<String> fileType = Arrays.asList("gif","jpg","png");
    							String ext = fileName.substring(fileName.lastIndexOf(".")+1);
    							if(fileType.contains(ext)){
    								saveFile = new File(uploadFilePath,item.getName());
    								item.write(saveFile);//上传
    								news.setNpicpath("upload/"+item.getName());//封装	
    							}else{
    								isunallowedType = true;//上传文件不匹配
    							}
    						}
    					}
    				}
    				if(isunallowedType){
    					/*out.print("<script type='text/javascript'>");
						out.print("alert('图片上传失败！文件类型只能是gif,jpg,png!');");
						out.print("location.href='"+request.getContextPath()+"/newsServlet?opr=loadNewsAddTopicList';");
						out.print("</script>");*/
    					status="exist";
						message="图片上传失败！文件类型只能是gif,jpg,png!";
    				}else{
    					//设定日期，显示成功，由用户选择跳转
    					news.setNcreatedate(new Date());
    					news.setNmodifydate(new Date());
    					if(ns.addNews(news)){
    						/*out.print("<script type='text/javascript'>");
							out.print("if(window.confirm('新闻添加成功！继续添加新闻吗？')){");
							out.print("location.href='"+request.getContextPath()+"/newsServlet?opr=loadNewsAddTopicList';");
							out.print("}else{");
							out.print("location.href='"+request.getContextPath()+"/index.jsp';}");
							out.print("</script>");*/
    						status="success";
							message="新闻添加成功！";
    					}else{
    						/*out.print("<script type='text/javascript'>");
							out.print("alert('新闻添加失败!');");
							out.print("location.href='"+request.getContextPath()+"/newsServlet?opr=loadNewsAddTopicList';");
							out.print("</script>");*/
    						status="exist";
							message="新闻添加失败!";
    					}
    				}
    			}catch(FileUploadBase.SizeLimitExceededException ex){
    				/*out.print("<script type='text/javascript'>");
					out.print("alert('图片上传失败!图片大小不能超过5M!');");
					out.print("</script>");*/
    				status="exist";
					message="图片上传失败!图片大小不能超过5M!";
    			} catch (FileUploadException e) {
    				status="exist";
					message="新闻添加失败！请联系管理员";
				} catch (Exception e) {
					status="exist";
					message="新闻添加失败！请联系管理员";
				}
    		}
    		out.print("[{\"status\":\""+status+"\",\"message\":\""+message+"\"}]");