loginservlet.java

对入学者很实用用JAVA的基本语言写的

package com.TestA.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 com.TestA.dao.UsersDAO;
import com.TestA.domain.Users;

public class LoginServlet extends HttpServlet {

	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			doPost(request,response);
	}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

			request.setCharacterEncoding("GBK");
			String sname = request.getParameter("sname");
			String spass = request.getParameter("spass");
			System.out.println(sname);
			System.out.println(spass);
			UsersDAO dao = new UsersDAO();
			Users user = dao.login(sname, spass);
			if (user==null)
				{
				response.sendRedirect("failure.jsp");
				}	
			else
			{
				request.setAttribute("user", user);
				request.getRequestDispatcher("modify.jsp").forward(request, response);
			}      

	}

	
	

}