在开始学习GUI的SOCKET编程时,就一直有一个梦想,希望有一天能将这种聊天程序在WEB上实现,虽然QQ和许多其它的聊天程序已经实现,但是他们的实现都使用的是AJAX,无非是对AJAX进行改进,或者使用FLEX,个人认为那样实现太复杂,没有研究!!几个星期前终天有时间研究了,使用jetty来编写聊天程序,后来聊天都实现了,但是jetty服务器没有使用过,中间配服务器差不多用了一个星期,让我很纠结,最后在实验室的电脑可以成功运行!!!不过可悲的是当我移植到我的笔记本时,却出现在了各种怪错!!于是,我又纠结了,今天晚上,奇迹的发现tomcat竟然也支持了,所以果然的下载了tomcat7.0.27来测试,惊人的发现与jetty实现相似,所以写了一个小测试程序,测试成功!!下面贴上我的代码,有兴趣的童鞋可以一起学习哦!!!! index.jsp <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <script type="text/javascript"> var ws = null; function startServer() { var url = "ws:localhost:8080/SocketTest/action/SocketServlet.do"; if ('WebSocket' in window) { ws = new WebSocket(url); } else if ('MozWebSocket' in window) { ws = new MozWebSocket(url); } else { alert('WebSocket is not supported by this browser.'); return; } ws.onopen = function() { alert("connect success!"); }; ws.onmessage = function(event) { alert("revice mess:" + event.data); }; ws.onclose = function() { alert("close connect.."); }; } </script> </head> <body οnlοad="startServer()"> </body> </html> src package action; import org.apache.catalina.websocket.StreamInbound; import socket.MyWebSocket; public class WebSocketServlet extends org.apache.catalina.websocket.WebSocketServlet { @Override protected StreamInbound createWebSocketInbound(String subProtocol) { // TODO Auto-generated method stub return new MyWebSocket(); } } package socket; import java.io.IOException; import java.nio.ByteBuffer; import java.nio.CharBuffer; import org.apache.catalina.websocket.MessageInbound; import org.apache.catalina.websocket.WsOutbound; public class MyWebSocket extends MessageInbound { @Override protected void onOpen(WsOutbound outbound) { System.out.println("connect...."); CharBuffer buffer = CharBuffer.wrap("hello,welcome to connect!"); try { this.getWsOutbound().writeTextMessage(buffer); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @Override protected void onClose(int status) { System.out.println("close....."); } @Override protected void onBinaryMessage(ByteBuffer arg0) throws IOException { // TODO Auto-generated method stub } @Override protected void onTextMessage(CharBuffer arg0) throws IOException { // TODO Auto-generated method stub } } 需要说明的是,在开发的时候必须在tomcat的lib目录下拷贝两个JAR包:catalina.jar tomcat-coyote.jar 但当你运行的时候必须将这两个包删除,否则,会与tomcat的包冲突!!!!! 他们类的关系,也有一定的理解,今天暂时写到这里吧!!