JSP专题：第六部分：用JSP实现聊天室-2

Bye.java
package customers;
import java.sql.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
public class Bye extends HttpServlet {
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {response.setContentType("text/html;charset=gb2312");
     HttpSession session=request.getSession(true);
     oneUser thisUser=(oneUser)session.getAttribute("thisUser");
     int intChatroom=Integer.parseInt(thisUser.getUserPosion());
     ServletContext application=getServletContext();
   ChatRoom thischatroom=(ChatRoom)application.getAttribute("thischatroom");
     thischatroom.addSpeaking("","","",thisUser.getUserName(),
     "","","green","system",intChatroom);
//增加用户离开聊天室的系统公告
     thischatroom.deleteUserList(thisUser.getUserId(),intChatroom);
     thisUser.setPosition("0");
//从在线用户列表中删除该用户，并重新设置用户当前位置
     getServletConfig().getServletContext().getRequestDispatcher
     ("/jsp/chatroom.jsp").forward(request,response);
//转向chatroom.jsp
    }
    public void doPost(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {
        doGet(request, response);
    }
}