loginaction.java

很多学校

package com.tarena.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 com.tarena.dao.LoginDao;
import com.tarena.dao.ipml.LoginImpl;
import com.tarena.entity.User;
import com.tarena.form.LoginForm;
public class LoginAction extends Action{
	@Override
	public ActionForward execute (ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		LoginForm loginForm=(LoginForm)form;
		String name=request.getParameter("name");
		String password=request.getParameter("password");
		LoginDao ld=new LoginImpl();
		User user=null;
		try{
			user=ld.login(name, password);
			if(user!=null){
				HttpSession session=request.getSession();
				session.setAttribute("user", user);
				return mapping.findForward("success");
			}
		}catch(Exception e){
			e.printStackTrace();
			return mapping.findForward("error");
		}
		return mapping.findForward("fail");
	}
	public ActionForward logout(ActionMapping mapping,ActionForm from,HttpServletRequest request,HttpServletResponse response){
		ActionForward forward=mapping.findForward("login");
		HttpSession session=request.getSession(true);
		session.removeAttribute("user");
		session.removeAttribute("cart");
		session.invalidate();
		return forward;
	}
}