ajaxfileupload.js_ajax file up load_ajaxfileupload多文件(2)

protected void doPost(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException,IOException {

	String fileName = "";
	//boolean isMultipart = ServletFileUpload.isMultipartContent(req);
		
	DiskFileItemFactory factory = new DiskFileItemFactory();  		
	// Configure a repository (to ensure a secure temp location is used)  
        ServletContext servletContext = req.getSession().getServletContext();  
        File repository = (File) servletContext.getAttribute("javax.servlet.context.tempdir");  
        factory.setRepository(repository); 
        System.out.println("-----------------uploading");
        // Create a new file upload handler  
        ServletFileUpload upload = new ServletFileUpload(factory); 
        upload.setHeaderEncoding("UTF-8");//解决中文乱码 
        try {  
            List<FileItem> items = upload.parseRequest(req);  
            for(FileItem item : items) {  
                //其他参数  
                String type = item.getContentType();  
                if(type == null) {  
                   //System.out.println(item.getString(item.getFieldName()));  
                    continue;  
                }                    
                //文件参数  
                fileName = item.getName();   
                               
                //设置保存文件路径  
                String realPath = this.getServletContext().getRealPath("/upload");
                //System.out.println("-----------------realPath--"+realPath);
                File dir = new File(realPath); 
                
                // System.out.println("-----------------filename--"+fileName);
                
                if (!dir.exists() && !dir.isDirectory()) {
                    System.out.println(realPath+"目录不存在，需要创建");
                    //创建目录
                    dir.mkdir();
                }
                
                File f = new File(dir, fileName);   
                f.createNewFile();                    
                //保存  
                item.write(f);              	
                resp.getWriter().print("success");
            }  
        }catch (FileUploadException e) {  
            e.printStackTrace();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }          	
}

本程序实现了点击按钮弹出选择上传文件的对话框，选定文件后，上传过程序中会有一个等待图片.gif 显示。

后出现问题，ajax里的data在带其他参数，后台接收不到，为NULL，需修改ajaxfileUpload.js文件，可参考

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