checkservlet.java

一个用JSP编写的网站计数器

package com.webcount.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.webcount.util.*;
import com.webcount.bean.*;
import com.webcount.dao.DAOFactory;
import com.webcount.dao.MemberDAO;

public class CheckServlet 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 {

		response.setContentType("text/html");
		response.setCharacterEncoding("GB18030");
		PrintWriter out = response.getWriter();
		String username = DataContext.formatParmeter(request.getParameter("username"));
		String password = DataContext.formatParmeter(request.getParameter("password"));
		Member member = new Member();
		member.setMemberusername(username);
		member.setMemberpassword(password);
		MemberDAO memberdao = DAOFactory.getMemberDAO();
		member = memberdao.validate(member);
		if(member==null){
			out.println("<script language=javascript>");
			out.println("alert('登录失败！');");
			out.println("window.location.href='../login.jsp';");
			out.println("</script>");
		}else{
			HttpSession session = request.getSession();
			session.setAttribute("webmember",member);
			out.println("<script language=javascript>");
			out.println("window.location.href='../webinfo.jsp';");
			out.println("</script>");
		}
		out.flush();
		out.close();
	}
}