用red5和flex实现的一个小的聊天程序

程序的基本功能

1.用户连接、断开连接

2.显示用户登录列表

3.信息群聊

4.私聊

red5程序：ChatRoom.java

package com.red5;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.logging.Logger;import org.red5.server.adapter.ApplicationAdapter;import org.red5.server.api.IConnection;import org.red5.server.api.IScope;import org.red5.server.api.Red5;import org.red5.server.api.service.IServiceCapableConnection;import org.red5.server.api.so.ISharedObject;/** * @category 一个简单的聊天程序 * @author Administrator * */public class ChatRoom extends ApplicationAdapter {private static Logger log = Logger.getLogger(ChatRoom.class.getName());private Map<String, IConnection> clientDic = new HashMap<String, IConnection>();/** * @category 客户端连接时调用 */@Overridepublic synchronized boolean connect(IConnection conn, IScope scope,Object[] params) {if(params.length == 0) {rejectClient("Must pass the login name.");}String loginname = params[0].toString();conn.setAttribute("UserName", loginname);//如果用户不存在于当前的连接中，则将其加入//如果不存在共享对象，则创建if(clientDic.keySet().contains(loginname)) {rejectClient("The same user has logged in already");} else {clientDic.put(loginname, conn);ISharedObject so = getSharedObject(scope, "UserSO");if(so == null) {createSharedObject(scope, "UserSO", true);so = getSharedObject(scope, "UserSO");}so.setAttribute("userlist", clientDic.keySet().toArray());}return super.connect(conn, scope, params);}/** * @category 客户端失去连接时调用 */@Overridepublic synchronized void disconnect(IConnection conn, IScope scope) {String loginname = conn.getAttribute("UserName").toString();if(loginname != null) {if(clientDic.keySet().contains(loginname)) {clientDic.remove(loginname);ISharedObject so = getSharedObject(scope, "UserSO");if(so != null) {so.setAttribute("userlist", clientDic.keySet().toArray());}}}super.disconnect(conn, scope);}/** * @category 发送全局消息，所有上线的人都能够看到 * @param params */public void sendMessage(List<String> params) {IConnection conn = Red5.getConnectionLocal();IScope scope = conn.getScope();ISharedObject so = getSharedObject(scope, "UserSO");log.info("Server: call sendMessage and params " + params.get(0));so.sendMessage("receiveMsg", params);}/** * @category 发送私聊信息，只有被选中的人能够看到信息 * @param params */public void sendPrvMessage(List<String> params) {if(params.size() == 3) {String sender = params.get(0);String content = params.get(1);String receiver = params.get(2);if(clientDic.keySet().contains(receiver)) {IConnection conn = clientDic.get(receiver);if(conn instanceof IServiceCapableConnection) {IServiceCapableConnection sc = (IServiceCapableConnection) conn;log.info("Server: call sendPrvMessage and sender->" + sender + " content->" + content + " receiver->" + receiver);sc.invoke("receivePrvMsg", new Object[]{sender,content});}}}}public Boolean appStart() {return true;}public void appStop() {}}

相关配置文件：

1.red5-web.properties

webapp.contextPath=/chatRoomwebapp.virtualHosts=localhost, 127.0.0.1

2.red5-web.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"><beans><bean id="placeholderConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">    <property name="location" value="/WEB-INF/red5-web.properties" /></bean><bean id="web.context" class="org.red5.server.Context" autowire="byType" /><bean id="web.scope" class="org.red5.server.WebScope" init-method="register"><property name="server" ref="red5.server" /><property name="parent" ref="global.scope" /><property name="context" ref="web.context" /><property name="handler" ref="web.handler" /><property name="contextPath" value="${webapp.contextPath}" /><property name="virtualHosts" value="${webapp.virtualHosts}" /></bean><bean id="web.handler"     class="com.red5.ChatRoom" singleton="true" />    <!-- this will support calling methods through "myhandler.<methodName>" --><!-- <bean id="myhandler.service"     class="the.path.to.my.ServiceHandler" singleton="true" /> --></beans>

3.web.xml

<?xml version="1.0" encoding="ISO-8859-1"?><web-app    xmlns="http://java.sun.com/xml/ns/j2ee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"    version="2.4"> <display-name>firstapp</display-name><context-param>    <param-name>globalScope</param-name>    <param-value>default</param-value></context-param><context-param>    <param-name>contextConfigLocation</param-name>    <param-value>/WEB-INF/red5-*.xml</param-value></context-param><context-param><param-name>locatorFactorySelector</param-name><param-value>red5.xml</param-value></context-param><context-param><param-name>parentContextKey</param-name><param-value>default.context</param-value></context-param><context-param>    <param-name>log4jConfigLocation</param-name>    <param-value>/WEB-INF/log4j.properties</param-value></context-param><context-param><param-name>webAppRootKey</param-name><param-value>/chatRoom</param-value></context-param>    <security-constraint>        <web-resource-collection>            <web-resource-name>Forbidden</web-resource-name>            <url-pattern>/streams/*</url-pattern>        </web-resource-collection>        <auth-constraint/>    </security-constraint></web-app>

flex程序:chatRoom.mxml

<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"><mx:Script><![CDATA[import mx.charts.chartClasses.StackedSeries;import mx.formatters.SwitchSymbolFormatter;import mx.controls.Alert;private var conn:NetConnection;private var so:SharedObject;private var rtmpURL:String = "rtmp://localhost/chatRoom";private function connHandler(evnet:Event):void {var loginname:String = loginName.text;if(loginname == "") {Alert.show("login name is null");return;} else {if(conn == null) {initNetConnection(loginname);}}}/** * 初始化连接 */ private function initNetConnection(loginname:String):void {conn = new NetConnection();conn.addEventListener(NetStatusEvent.NET_STATUS, netStatus);conn.connect(rtmpURL, loginname);}private function netStatus(event:NetStatusEvent):void {if("NetConnection.Connect.Success" == event.info.code) {sendBtn.enabled = true;so = SharedObject.getRemote("UserSO", conn.uri, true);so.addEventListener(SyncEvent.SYNC, onSync);so.client = this;//设置群聊时接收到消息的窗体conn.client = this;//设置私聊时接收到消息的窗体so.connect(conn);}}private function onSync(event:SyncEvent):void {for(var i:Object in event.changeList) {var changeObj:Object = event.changeList[i];switch(changeObj.code) {case "success":break;case "change":userList.dataProvider = so.data.userlist;break;}}}/** * 失去连接 */ private function disconnhandler(event:Event):void {if(conn != null && conn.connected) {conn.close();var nularr:Array = new Array();userList.dataProvider = nularr;}}/** * 发送消息 */ private function sendHandler(event:Event):void {if(conn != null && conn.connected) {if(IsPrivate.selected) {if(userList.selectedIndex == -1) {Alert.show("must choose a user first");} else {var pusername:String = userList.selectedItem.toString();if(pusername == loginName.text) {Alert.show("can't say privately to self");} else {//调用服务器端的私聊函数conn.call("sendPrvMessage", null, loginName.text, loginName.text + " says privately: " + chatWord.text, pusername);chatWord.text = "";}}} else {if(chatWord.text != "") {//调用服务器端的群聊函数conn.call("sendMessage", null, loginName.text + " says: " + chatWord.text);chatWord.text = "";}}}}/** * 接收私聊信息并显示 */ public function receivePrvMsg(sender:String, msg:String):void {chatArea.text += msg + "\n";}/** * 接收群聊信息并显示 */ public function receiveMsg(msg:String):void {chatArea.text += msg + "\n";}]]></mx:Script><mx:Panel width="585" height="480" layout="absolute" title="ChatRoom" horizontalCenter="0" verticalCenter="0"><mx:Label x="46" y="26" text="Login Name:"/><mx:TextInput x="125" y="24" id="loginName"/><mx:Button x="314" y="24" label="Connect" id="connBtn" click="connHandler(event)"/><mx:Button x="406" y="24" label="DisConnect" id="disconnBtn" click="disconnhandler(event)"/><mx:TextArea x="241" y="73" width="255" height="248" id="chatArea"/><mx:Label text="Chat:" horizontalCenter="-140" verticalCenter="175"/><mx:TextInput x="169" y="384" width="249" id="chatWord"/><mx:Button x="426" y="384" label="send" id="sendBtn" width="68" enabled="false" click="sendHandler(event)"/><mx:CheckBox x="68" y="340" label="Private Chat" id="IsPrivate"/><mx:TileList x="46" y="73" width="164" height="248" id="userList" columnCount="1" direction="vertical"></mx:TileList></mx:Panel></mx:Application>

效果图：