usermessagebean.java

本系统完成简单的图书管理系统

/***********************************************************************
*                          湖南大学图书管理系统
* @author Administrator                                                         
* @since 2008.06                                                  
* @version 1.0                                                           															  
* @category 用户信息bean
*************************************************************************/

package library.control;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Vector;

import javax.servlet.RequestDispatcher;
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 library.DBaccess.UserMessageDB;

public class UserMessageBean extends HttpServlet{

	public UserMessageBean() {
		// TODO Auto-generated constructor stub
		super();
	}


	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		req.setCharacterEncoding("gb2312");
		if(req.getParameter("name").equals("usermessage"))
		{
			UserMessageDB umdb = new UserMessageDB();
			String username = null;
			
			HttpSession session=req.getSession();
			username =((ArrayList)session.getAttribute("userInfo")).get(0).toString();
			Vector v=null;
			v = umdb.getUserMessage(username);
			
			System.out.println(v.size());
			req.setAttribute("userMessage",v);
			
			System.out.println("用户信息");
			req.setAttribute("title", "用户信息");
			req.setAttribute("URL", "//student/view/userMessage.jsp");
			RequestDispatcher dis = this.getServletContext().getRequestDispatcher("/student/index.jsp");
			dis.forward(req, resp);
		}
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		super.doPost(req, resp);
	}

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		super.destroy();
	}

	@Override
	public void init() throws ServletException {
		// TODO Auto-generated method stub
		super.init();
	}

}