public String execute() throws Exception {
   // TODO Auto-generated method stub
   Users condition = new Users();
   condition.setLoginName(loginName);
   condition.setLoginPwd(loginPwd);
   List list = userBiz.login(condition);
   if (list.size() > 0) {
     Users users = (Users) list.get(0);
     String name = users.getName();
     Integer roleId = users.getRoleId();
     Map<String, Object> session = ActionContext.getContext().getSession();
     session.put("name", name);
     session.put("role", roleId);
     return ActionSupport.SUCCESS;
   } else {
     return "error";
   }
 }
 public String addUser() throws Exception {
   userBiz.register(users);
   System.out.println("前端註冊名字為" + users.getLoginName());
   return "success";
 }