loginservlet.java

自己编写的一个JSP+SERVER的框架, 实际项目已经运用多次,效率很好.

package com.aptech.control.servlet.system;

import java.util.List;

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

import com.aptech.business.dm.BaseDM;
import com.aptech.business.dm.UserDM;
import com.aptech.business.exception.FatalException;
import com.aptech.control.servlet.BaseServlet;
import com.aptech.business.iface.*;
import com.aptech.business.iface.system.*;
import com.aptech.business.impl.*;
import com.aptech.business.impl.system.*;
import com.aptech.business.factory.*;
/**
 * LoginServlet
 * 校验用户名密码
 * @author 刘琎 2007-1-5
 *
 */
public class LoginServlet extends BaseServlet {

	@Override
	protected BaseDM input(HttpServletRequest request, HttpSession session) throws FatalException{
		UserDM dm = new UserDM();
		dm.setUserno(request.getParameter("userno"));
		dm.setUserpwd(request.getParameter("userpwd"));
		return dm;
	}

	@Override
	protected List executeSearch(BaseDM baseDM)throws FatalException {
		// TODO Auto-generated method stub
		UserDM dm = (UserDM)baseDM;
		IUserImpl impl = (IUserImpl)SystemFactory.creator();
		return impl.login(dm);
	}
	
	@Override
	protected String output(HttpServletRequest request,List list) throws FatalException{
		//没有找到记录
		if(list == null) {
			return "/login.jsp";
		}
		return "/index.jsp";
	}

}