2012-01-12 18:19 js通过as完成socket通信

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本文介绍了一种使用JavaScript和ActionScript实现跨平台Socket通信的方法。通过Flash作为桥梁，利用其强大的Socket支持能力，实现浏览器端与服务器端的数据交互。文章详细展示了如何设置和使用Socket连接，包括连接建立、发送数据、接收数据以及错误处理等。

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js通过as完成socket通信

[ as ] :

===================================================

import flash.external.ExternalInterface;

import flash.net.Socket;

import flash.events.SecurityErrorEvent;

import flash.events.IOErrorEvent;

import flash.events.ProgressEvent;

var mySocket:Socket = new Socket();

mySocket.addEventListener(Event.CONNECT,connectHandler);

mySocket.addEventListener(Event.CLOSE,closeHandler);

mySocket.addEventListener(IOErrorEvent.IO_ERROR,ioErrorHandler);

mySocket.addEventListener(SecurityErrorEvent.SECURITY_ERROR,seurityErrorHandler);

mySocket.addEventListener(ProgressEvent.SOCKET_DATA,socketDataHandler);

function connectHandler(e:Event):void{

ExternalInterface.call("flashEvent.connectHandler");

}

function closeHandler(e:Event):void{

ExternalInterface.call("flashEvent.closeHandler");

}

function ioErrorHandler(evt:IOErrorEvent):void{

ExternalInterface.call("flashEvent.ioErrorHandler");

}

function seurityErrorHandler(evt:SecurityErrorEvent):void{

ExternalInterface.call("flashEvent.seurityErrorHandler");

}

function socketDataHandler(evt:ProgressEvent):void{

var msg:String = "";

while(mySocket.bytesAvailable)

{

msg += mySocket.readMultiByte(mySocket.bytesAvailable,"utf-8");

}

ExternalInterface.call("flashEvent.socketDataHandler",msg);

}

function sendData(str:String):void{

mySocket.writeUTFBytes(str);

mySocket.flush();

}

function connectSocket(host:String,port:String):void{

mySocket.connect(host,int(port));

}

function closeSocket(str:String):void{

mySocket.close();

}

ExternalInterface.addCallback("sendDataFromAs", sendData);

ExternalInterface.addCallback("closeSocketFromAs", closeSocket);

ExternalInterface.addCallback("connectSocketFromAs", connectSocket);

ExternalInterface.call("flashEvent.asReady");

[ js ] :

==================================================================

var flashSocketNode = Y.Node.create('<embed src="flash/flash_socket.swf" width="1" height="1" allowScriptAccess="sameDomain" type="application/x-shockwave-flash">').appendTo(document.body),

flashSocketNode = Y.Node.getDOMNode(flashSocketNode),

asReady = false,

that = this;

this._flashSocket = {

isAsReady : function(){

return asReady;

connect : function(host,port){

flashSocketNode.connectSocketFromAs(host,port);

close : function(){

flashSocketNode.closeSocketFromAs();

send : function(data){

flashSocketNode.sendDataFromAs(data);

onopen : function(){},

onclose : function(){},

onmessage : function(){}

}

window.flashEvent = {

asReady : function(){

asReady = true;

connectHandler : function(){

that._flashSocket.onopen();

closeHandler : function(){

that._FlashSocket.onclose();

ioErrorHandler : function(){

new Y.Win().alert({"content":"flash io error"});

seurityErrorHandler : function(){

new Y.Win().alert({"content":"flash seurity error"});

socketDataHandler : function(data){

dataList = data.slice(0,-2).split("\r\n");

Y.each(dataList,function(_data){

that._flashSocket.onmessage({data:_data});

if(dataList.length>1){

new Y.Win().alert({content:_data,width:1000,height:500});

}

},that);

}

};

[ server ] :

============================================================

def __handshakeHandler(self,data):

response = ""

if "<policy-file-request" in data :

response = '''

<?xml version="1.0"?>

<cross-domain-policy>

<allow-access-from domain="*" to-ports="*" />

</cross-domain-policy>\0'''.lstrip()

def __wrapResponse(self,str):

response = ""

if self.__getDraftType() == "common":

response = '%s\r\n' % str