src/com/fhd/servlet/LoginServlet.java

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package com.fhd.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 javax.servlet.http.HttpSession;

import com.fhd.bean.UserBean;
import com.fhd.dao.UserDao;

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 {
		String userName = request.getParameter("userName");
		String userPass = request.getParameter("userPass");
		String nextPage = request.getContextPath() + "/jsps/index.jsp";
		String path = request.getContextPath();
		UserBean bean = UserDao.verifyLogin(userName, userPass);
		HttpSession session = request.getSession();
		if(bean==null){
			nextPage = path + "/login.jsp";
			session.setAttribute("errorMsg", "帐户或密码错误!");
		}
		else{
			System.out.println(bean.getUserTrueName());
			session.setAttribute("userRights",bean.getUserRights());
			session.setAttribute("userName",bean.getUserTrueName());
		}
		response.sendRedirect(nextPage);
	
	}

}