Java上传文件处理：DiskFileUpload与文件命名

String method=request.getParameter("method");
if(method.equals("upload"))
{
String nowDate=new SimpleDateFormat("yyyyMMddHHmmss").format(Calendar.getInstance().getTime());
    DiskFileUpload fu = new DiskFileUpload();
    String loadpath = getServletContext().getRealPath("/") + "upload/"; //上传文件存放目录 
    try {
List fileItems = fu.parseRequest(request);

Iterator iter = fileItems.iterator(); // 依次处理每个上传的文件 
    
        FileItem item = (FileItem) iter.next();// 忽略其他不是文件域的所有表单信息 
        if (!item.isFormField()) {
            String name = item.getName();//获取上传文件名,包括路径 
            name = nowDate+ name.substring(name.lastIndexOf("\\") + 1);//从全路径中提取文件名 
            long size = item.getSize(); 
            String path = request.getContextPath();
            String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";   
            global.filePath=basePath+"upload/"+name; 
            File fNew = new File(loadpath, name);
            item.write(fNew);     
        }
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}