loginaction.java

主要是会员注册

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.tq.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import pojo.User;

import com.sun.java_cup.internal.sym;
import com.tq.struts.form.LoginForm;
import com.tq.struts.service.UserLogin;

/** 
 * MyEclipse Struts
 * Creation date: 10-18-2008
 * 
 * XDoclet definition:
 * @struts.action path="/login" name="loginForm" input="/form/login.jsp" scope="request" validate="true"
 */
public class LoginAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		LoginForm loginForm = (LoginForm) form;
		HttpSession session=request.getSession();
		String userName=loginForm.getUserName();
		//System.out.println(userName);
		String password=loginForm.getPassword();	
		UserLogin userLogin=new UserLogin();
		if(session.getAttribute("userName")!=null&&((String)session.getAttribute("userName")).equals(userName))
		{
			request.setAttribute("msg", "该用户已登录！");
			return mapping.findForward("login");
		}
		else {
		   session.setAttribute("userName", null);
		   if(userLogin.login(userName, password)){
				request.setAttribute("msg","登录成功!");
				session.setAttribute("userName", userName);
				return mapping.findForward("login");
		    	}
	     	else {
				request.setAttribute("msg", "登录失败!");
			    return mapping.findForward("login");
			    }
		     }
			
		}
			
	}