一个简单聊天室的问题，帮忙看一下
一、SpeakCountBean.java
package chatroom;
import java.util.*;
public class SpeakCountBean {
static int count;
public static void SpeakCountBean() {
count=0;
}
public static void setName(String name) {
count++;
}
public static int getSpeakCount() {
return count;
}
}
二、SpeakBean.java
package chatroom;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class SpeakBean {
static String allSpeaking= new String( " ");
static String CookieName = new String( " ");
public SpeakBean() {
}
public static void setChat(String name,String speaking,
HttpServletResponse response) {
if (!name.equals( " ") && !speaking.equals( " "))
allSpeaking=allSpeaking+name+ "说： "+speaking+ ";
Cookie cookie = new Cookie( "name ",name);
response.addCookie(cookie);
}
public String getCookieName(HttpServletRequest request) {
Cookie[] cookies = request.getCookies();
if (cookies.length > 0)
{for (int i = 0; i < cookies.length; i++)
{Cookie requestcookie = cookies[i];
if (requestcookie.getName().equals( "name "))
CookieName = requestcookie.getValue();
}
}
return CookieName;
}
public String getAllSpeaking() {
return allSpeaking;
}
}
三、ChatRoom.java
package chatroom;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
public class ChatRoom extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{chatroom.SpeakCountBean mycount=new chatroom.SpeakCountBean();
mycount.setName(request.getParameter( "name "));
chatroom.SpeakBean myspeak=new chatroom.SpeakBean();
if (mycount.getSpeakCount()> 0)
myspeak.setChat(request.getParameter( "name "),request.getParameter
( "speaking "),response);
getServletConfig().getServletContext().getRequestDispatcher
( "/jsp/chatroom/chatroom.jsp ").forward(request,response);
}
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
doGet(request, response);
}
}
四、chatroom.jsp
<%@ page contentType= "text/html;charset=gb2312 " %>
<html>
<head>
<title> 最最简单的聊天室 </title>
</head>
<h3> 最最简单的聊天室 </h3>
你讲了：
<jsp:useBean id= "mycount " class= "chatroom.SpeakCountBean " scope= "session "/>
<%=mycount.getSpeakCount() %>
句话。 <BR>
<jsp:useBean id= "myspeak " class= "chatroom.SpeakBean " scope= "application "/>
<%=myspeak.getAllSpeaking() %>
<P>
<form action= "http://localhost/examples/servlet/chatroom.ChatRoom " method=POST>
用户
<input type=text size=10 name=name value= " <%=myspeak
.getCookieName(request) %> ">
<br>
发言
<input type=text size=80 name=speaking>
<br>
<input type=submit value=提交>
</form>
</body>
</html>
这个结构很简单也很明确，MVC结构，用Servlet进行控制，很早以前就下到硬盘上了以为简单一直都没怎么研究过，最近无聊拉出来看看发现中间好几个细节都无法正确执行。
就象chatroom.jsp页面就无法显示出来，本来做了测试，如果将 <%=myspeak
.getCookieName(request) %> 代码取掉才可以正常显示出来，但是无法实现正常的功能。
[解决办法]
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