checkuserservlet.java

毕业设计JSP公交车查询系统

package bus.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import bus.bean.UserBean;
import bus.dao.UserDao;

public class CheckUserServlet extends HttpServlet {
	 public void doGet(HttpServletRequest request, HttpServletResponse response)
     throws
     ServletException, IOException
 {
 	request.setCharacterEncoding("gb2312");
     if (request.getParameter("username") != null &&
         request.getParameter("password") != null)
     {
         String username = request.getParameter("username");
         String password = request.getParameter("password");
         UserDao db = new UserDao();
         UserBean ub=db.checkLogin(username, password);
         request.getSession().setAttribute("user",ub); 
         if(ub!=null)
         response.sendRedirect("/dalianbus/admin/index.jsp");
         else
         response.sendRedirect("/dalianbus/login.jsp");
     }
 }
 public void doPost(HttpServletRequest request, HttpServletResponse response)
     throws
     ServletException, IOException
 {
     doGet(request, response);
 }
}