flex flash socket通信实例

<?xml version="1.0"encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"layout="vertical" verticalAlign="middle" fontSize="12" creationComplete="onInit()">

????<mx:ViewStack id="viewstack1"width="454" height="338" selectedIndex="0">

????????<mx:Canvaslabel="View 1"width="100%" height="100%">

????????????<mx:TitleWindow width="100%"height="100%" layout="absolute" title="连接设置">

????????????????<mx:Button x="181"y="186" label="连??? 接"click="onConnect()"id="btnCon"/>

????????????????<mx:TextInput x="181"y="31" id="txtHost" text="127.0.0.1"width="184"/>

????????????????<mx:TextInput x="181"y="94" id="txtPort" width="184"text="6000"/>

????????????????<mx:Label x="74"y="31" text="链接地址:"/>

????????????????<mx:Label x="74"y="94" text="连接端口:"/>

????????????????<mx:Button x="297"y="186" label="清??? 空"click="onEmpty()"/>

????????????</mx:TitleWindow>

????????</mx:Canvas>

????????<mx:Canvaslabel="View 1"width="100%" height="100%">

????????????<mx:TitleWindow width="100%"height="100%" layout="absolute" title="消息窗口">

????????????????<mx:TextArea x="10"y="10" width="414" height="176"id="txtRec"/>

????????????????<mx:Button x="160"y="262" label="发??? 送"fontSize="12" click="onSendData()" />

????????????????<mx:Button x="260"y="262" label="断??? 开"fontSize="12" click="onClose()"/>

????????????????<mx:TextInput x="10"y="194" width="414" id="txtSend"height="45"/>

????????????????<mx:Text x="201"y="202" text="正在断开,请稍后..." visible="false" id="msg"/>

????????????????<mx:Button x="355"y="262" label="关??? 闭"click="onCloseWindow()"/>

????????????</mx:TitleWindow>

????????</mx:Canvas>

????</mx:ViewStack>

??????

????<mx:Script>

????????<![CDATA[

????????????importmx.controls.Alert;

????????????importflash.net.Socket;

????????????importflash.utils.ByteArray;

????????????importflash.events.SecurityErrorEvent;

????????????importflash.events.IOErrorEvent;

????????????importflash.events.ProgressEvent;

??????????????

????????????//全局变量

????????????privatevar socket:Socket=newSocket();

????????????//连接

????????????privatefunction onInit():void

????????????{

????????????????socket.addEventListener(Event.CONNECT,connect);

????????????????socket.addEventListener(Event.CLOSE,onClosed);

????????????????socket.addEventListener(IOErrorEvent.IO_ERROR,onIoError);

????????????????socket.addEventListener(SecurityErrorEvent.SECURITY_ERROR,onSeurity);

????????????????socket.addEventListener(ProgressEvent.SOCKET_DATA,onReceiveData);

????????????}

??????????????

????????????privatefunction connect(e:Event):void

????????????{

????????????????this.viewstack1.selectedIndex=1;

????????????}

??????????????

????????????privatefunction onClosed(e:Event):void

????????????{

??????????????????

????????????}

??????????????

????????????//连接服务器

????????????privatefunction onConnect():void

????????????{

????????????????varhost:String=this.txtHost.text;

????????????????varport:Number = Number(this.txtPort.text);

????????????????if(!(host&&port))

????????????????{

????????????????????Alert.show("服务器地址和端口不能为空!","提示");

????????????????????return;

????????????????}

????????????????socket.connect(host,port);

????????????}

????????????//关闭服务器

????????????privatefunction onClose():void

????????????{

????????????????socket.close();

????????????????this.viewstack1.selectedIndex=0;

????????????}

??????????????

????????????//IO错误

????????????privatefunction onIoError(evt:IOErrorEvent):void

????????????{

????????????????Alert.show(evt.text,"IO错误!");

????????????}

????????????//安全策略错误

????????????privatefunction onSeurity(evt:SecurityErrorEvent):void

????????????{

????????????????Alert.show(evt.text,"安全策略错误");??

????????????}

??????????????

????????????//发送

????????????privatefunction onSendData():void

????????????{

????????????????varbuff:ByteArray=newByteArray();

????????????????buff.writeUTF(this.txtSend.text);

????????????????socket.writeBytes(buff,0,buff.length);

????????????????socket.flush();//发送数据?

????????????}

????????????//接收

????????????privatefunction onReceiveData(evt:ProgressEvent):void

????????????{

????????????????while(socket.bytesAvailable)

????????????????{

????????????????????this.txtRec.text+=socket.readMultiByte(socket.bytesAvailable,"utf8")+"n";

????????????????}

????????????}

??????????????

????????????/**ui操作**/

????????????//清空

????????????privatefunction onEmpty():void

????????????{

????????????????this.txtHost.text="";

????????????????this.txtPort.text="";

????????????????this.txtHost.setFocus();

????????????}

????????????//关闭浏览器

????????????privatefunction onCloseWindow():void

????????????{

????????????????varrequest:URLRequest = newURLRequest("javascript:window.close()");

????????????????navigateToURL(request,"_self");

????????????}

??????????????

????????]]>

????</mx:Script>

</mx:Application>