我今天的事在把昨天的servlet写出来。
private void add(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
// TODO Auto-generated method stub
String id=req.getParameter("id");
String name=req.getParameter("name");
String aclass=req.getParameter("aclass");
String kecheng=req.getParameter("kecheng");
String score=req.getParameter("score");
User user= new User(id,name,aclass,kecheng,score);
String ruserid = dao.find(id);
if(!id.equals(ruserid)) {
dao.add(user);
req.setAttribute("message", "添加成功!");
req.getRequestDispatcher("shouye.jsp").forward(req, resp);
//req.getRequestDispatcher("UserServlet?method=allall").forward(req, resp);
}else {
req.setAttribute("message", "账户重复，请重新输入!");
req.getRequestDispatcher("add.jsp").forward(req, resp);
}
}