经过两天两夜的艰苦努力，史上第一个Flash P2P源代码终于被我老虫搞出来啦！ 先看效果图： 再来看使用方法： 在A、B两台具有静态IP的机器上打开本页后，程序首先生成一个随机的用户名myName并自动连接到Adobe官方的stratus服务器，连接成功后，程序会自动获取一个myID号。将A中的myName和myID复制粘贴到B中的oppName和oppID中，单击B中的Call按钮呼叫A，当A中有呼叫的提示信息时，在A中单击Accept按钮，这样P2P连接就建立了！P2P连接建立后，可以播放对方视频，可以进行文本聊天。 通过该示例你可以： 1、了解如何使用新的RTMFP协议连接到远程服务器。 2、了解如何建立P2P连接。 3、了解如何发布和接收P2P流。 4、了解如何进行文本聊天。 已知问题： 1、只能在有静态IP的局域网内使用，广域网的动态分配的IP不行（后经测试，是可以在广域网使用的！）。 2、在进行P2P呼叫的时候速度慢，即使是在同一个局域网内。 SWF文件在下面，你可以将它另存到桌面上使用，要注意允许SWF访问网络及相关的安全设置： 源代码如下： package {
import flash.display.MovieClip;
import fl.managers.StyleManager;
import flash.text.TextFormat;
import flash.net.NetConnection;
import flash.net.NetStream;
import flash.net.ObjectEncoding;
import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.net.URLRequestMethod;
import flash.net.URLRequestHeader;
import flash.net.URLVariables;
import flash.events.Event;
import flash.events.IOErrorEvent;
import flash.events.MouseEvent;
import flash.events.AsyncErrorEvent;
import flash.events.SecurityErrorEvent;
import flash.events.NetStatusEvent;
import flash.media.SoundTransform;
import flash.media.Camera;
import flash.media.Microphone;
public class p2p extends MovieClip {
private var fmsPath:String;
private var myNC:NetConnection;
private var controlStream:NetStream;
private var outgoingStream:NetStream;
private var incomingStream:NetStream;
private var listenerStream:NetStream;
private var yourName:String;
private var yourID:String;
private var oppName:String;
private var oppID:String;
private var WebServiceUrl:String;
//正式开始喽
public function p2p() {
setCommonStyle();
init();
}
private function setCommonStyle() {
//设置所有组件的样式
var myTF:TextFormat=new TextFormat ;
myTF.size=12;
StyleManager.setStyle("textFormat",myTF);
}
//初始化工作
private function init() {
fmsPath="rtmfp://stratus.adobe.com/HawkPrerelease-4e4efa13755c/FMSer.cn";
WebServiceUrl="http://76.74.170.61/cgi-bin/reg";
myNC=new NetConnection();
myNC.client=this;
myNC.objectEncoding=ObjectEncoding.AMF3;
myNC.addEventListener(NetStatusEvent.NET_STATUS,netStatus);
myNC.addEventListener(SecurityErrorEvent.SECURITY_ERROR,securityError);
myNC.addEventListener(AsyncErrorEvent.ASYNC_ERROR,asyncError);
//开始连接服务器
myNC.connect(fmsPath);
//随机生成用户名
myNameTxt.text="FMSer"+int(Math.random()*100);
sendBtn.addEventListener(MouseEvent.CLICK,sendChatMsg);
} private function asyncError(e:AsyncErrorEvent) {
}
private function securityError(e:SecurityErrorEvent) {
}
//连接功能后将自己的用户名和ID传给WEB服务器暂存
private function netStatus(e:NetStatusEvent) {
switch (e.info.code) {
case "NetConnection.Connect.Success" :
trace("连接成功！");
myIDTxt.text=myNC.nearID;
callWebService();
break;
case "NetConnection.Connect.Failed" :
trace("连接失败！");
break;
case "NetConnection.Connect.Rejected" :
trace("连接失败！");
break;
case "NetConnection.Connect.Closed" :
trace("连接中断！");
break;
} }
//完成用户信息提交工作
private function callWebService() {
var urlLoader:URLLoader = new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, completeHandler);
urlLoader.addEventListener(IOErrorEvent.IO_ERROR, ioerrorHandler);
var urlRequest:URLRequest=new URLRequest(WebServiceUrl);
var parameter:URLVariables=new URLVariables ;
parameter.username=myNameTxt.text;
parameter.identity=myIDTxt.text;
urlRequest.data=parameter;
urlLoader.load(urlRequest);
}
//准备呼叫和被呼叫
private function completeHandler(e:Event) {
callBtn.addEventListener(MouseEvent.CLICK,startCall);
completeRegistration();
}
private function ioerrorHandler(e:IOErrorEvent) {
}
//开始呼叫
private function startCall(e:MouseEvent) {
oppName=oppNameTxt.text;
oppID=oppIDTxt.text;
placeCall(oppName,oppID);
}
//呼叫主函数
private function placeCall(tmpOppName:String,tmpOppID:String) {
msgTxt.text="正在呼叫:"+tmpOppName+"...";
//尝试播放对方视频
controlStream=new NetStream(myNC,tmpOppID);
controlStream.addEventListener(NetStatusEvent.NET_STATUS,controlHandler);
controlStream.play("control" +tmpOppName);
//对外发布点对点视频
outgoingStream=new NetStream(myNC,NetStream.DIRECT_CONNECTIONS);
outgoingStream.addEventListener(NetStatusEvent.NET_STATUS,outgoingStreamHandler);
outgoingStream.publish("media-caller");
var o:* = new Object();
o.onPeerConnect =function (tmpNS:NetStream){
msgTxt.text="正在建立P2P连接..."
};
outgoingStream.client=o;
startAudio();
startVideo();
//接收来自外部的点对点视频
incomingStream=new NetStream(myNC,tmpOppID);
incomingStream.addEventListener(NetStatusEvent.NET_STATUS,incomingStreamHandler);
incomingStream.play("media-callee");
var st:* =new SoundTransform(50);
incomingStream.soundTransform=st;
//被呼叫方接受连接时触发该事件
var i:* = new Object();
i.onCallAccepted =function (tmpOppName:String){
msgTxt.text=tmpOppName+"已经接受了你的呼叫..."
};
//被呼叫方接受连接时触发该事件
i.onIm = function (userName:String,chatMsg:String){
chatContent.text =chatContent.text + (userName+ ": " + chatMsg + "/n");
chatContent.verticalScrollPosition =chatContent.textHeight;
}
incomingStream.client=i;
remoteVideoDisplay.attachNetStream(incomingStream);
}
private function controlHandler(e:NetStatusEvent) {
trace(e.info.code);
}
private function outgoingStreamHandler(e:NetStatusEvent) {
outgoingStream.send("onIncomingCall",myNameTxt.text);
trace(e.info.code);
}
private function startAudio() {
var myMic:Microphone=Microphone.getMicrophone(0);
outgoingStream.attachAudio(myMic);
}
private function startVideo() {
var myCam:Camera=Camera.getCamera();
localVideoDisplay.attachCamera(myCam);
outgoingStream.attachCamera(myCam);
} private function incomingStreamHandler(e:NetStatusEvent) {
trace(e.info.code);
}
//向Web服务器提交完信息后为连接做准备
private function completeRegistration() {
listenerStream=new NetStream(myNC,NetStream.DIRECT_CONNECTIONS);
listenerStream.addEventListener(NetStatusEvent.NET_STATUS,listenerHandler);
listenerStream.publish("control" +myNameTxt.text);
var c:* = new Object();
c.onPeerConnect = function (tmpNS:NetStream){
var caller:* =tmpNS;
incomingStream = new NetStream(myNC,caller.farID);
incomingStream.addEventListener(NetStatusEvent.NET_STATUS, incomingStreamHandler);
incomingStream.play("media-caller");
var st:SoundTransform= new SoundTransform(50);
incomingStream.soundTransform = st;
incomingStream.receiveAudio(false);
incomingStream.receiveVideo(false);
var i:Object= new Object();
i.onIncomingCall = function (tmpOppName:String){
msgTxt.text=tmpOppName+"正在呼叫你,你接受吗?"
acceptBtn.addEventListener(MouseEvent.CLICK,acceptCall)
}
i.onIm = function (userName:String,chatMsg:String){
chatContent.text =chatContent.text + (userName+ ": " + chatMsg + "/n");
chatContent.verticalScrollPosition =chatContent.textHeight;
}
incomingStream.client = i;
};
listenerStream.client=c;
}
private function listenerHandler(e:NetStatusEvent) {
trace(e.info.code);
}
//接受呼叫
public function acceptCall(e:MouseEvent) {
msgTxt.text="你已经接受了对方的呼叫...";
incomingStream.receiveAudio(true);
incomingStream.receiveVideo(true);
remoteVideoDisplay.attachNetStream(incomingStream);
outgoingStream=new NetStream(myNC,NetStream.DIRECT_CONNECTIONS);
outgoingStream.addEventListener(NetStatusEvent.NET_STATUS,outgoingStreamHandler);
outgoingStream.publish("media-callee");
var o:* = new Object();
o.onPeerConnect = function (tmpNS:NetStream){
trace(tmpNS.farID);
}
;
outgoingStream.client=o;
outgoingStream.send("onCallAccepted",myNameTxt.text);
startVideo();
startAudio();
}
//发送聊天信息
private function sendChatMsg(e:MouseEvent) {
var tmpMsg:* =chatTxt.text;
if (tmpMsg!=0&&outgoingStream) {
chatContent.text=chatContent.text+myNameTxt.text+": "+tmpMsg+"/n";
outgoingStream.send("onIm",myNameTxt.text,tmpMsg);
chatTxt.text="";
} else {
chatContent.appendText("发送内容为空或连接尚未建立!"+"/n");
chatTxt.text="";
}
}}
}
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