這裏使用了一個單例的SocketManager類：
1: conn = new Socket();
2:
3: conn.addEventListener(Event.CLOSE, onSocketCloseHandler);
4: conn.addEventListener(Event.CONNECT, onSocketConnectHandler);
5: conn.addEventListener(IOErrorEvent.IO_ERROR, onSocketIOErrorHandler);
6: conn.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onSocketSecurityHandler);
7: conn.addEventListener(ProgressEvent.SOCKET_DATA, onSocketDataHandler);SocketManager最多在連接失敗時，進行5次重連。建立socket連接代碼：
1: public function connSocket(url:String, port:Number, _endian:String=""):void
2: {
3: if (conn == null)
4: {
5: initSocket();
6: }
7:
8: if (_endian == '')
9: {
10: _endian = Endian.BIG_ENDIAN;
11: }
12:
13: CURR_RECONN_NUM = 0;
14:
15: conn.endian = _endian;
16:
17: socket_url = url;
18: socket_port = port;
19:
20: conn.connect(socket_url, socket_port);
21: }如果需要發送socket數據，直接調用send方法：
1: /**
2: * 發送數據
3: */
4: private function send(bytes:IMeteoricByteArray):Boolean
5: {
6: if (checkConnIsSuc() == false)
7: {
8: return false;
9: }
10:
11: var bytes_len:uint = bytes.size();
12:
13: var byteArr:ByteArray = new ByteArray();
14:
15: byteArr.writeInt(bytes_len + headLen);
16: byteArr.writeBytes(bytes.getByte());
17:
18: conn.writeBytes(byteArr);
19: conn.flush();
20:
21: bytes.dispose();
22:
23: return true;
24: }格式：數據包頭部長度(int-帶符號的32位整數)|消息標識(short-16位整數)|消息返回標識(short-16位整數)|…
bytes.writeInt();
bytes.writeShort();
bytes.writeShort();
bytes…
根據不同的消息標識（唯一），後臺獲取標識後調用不同的解析方法，解析客戶端發送的數據
前臺as3建立socket，發送數據、解析數據，網上很多例子，這裏不重點說了。這裏重點介紹node.js如何解析消息（不使用任何第三方庫）：
1: var net = require('net');
2: var clients = [];
3:
4: var HOST = '127.0.0.1';
5: var PORT = 7000;
6:
7: net.createServer(function(socket) {
8:
9: console.log('Connected: ' + socket.remoteAddress +':'+ socket.remotePort);
10:
11: clients.push(socket);
12:
13: socket.on('data', function(data) {
14: console.log('receive data：' + socket.remoteAddress +':'+ socket.remotePort);
15:
16: var isBuffer = Buffer.isBuffer(data);
17:
18: if (isBuffer) {
19: var offset = data['readInt32BE'](0);
20: var headCode = data['readInt16BE'](offset);
21: offset += 2;
22: var headBackCode = data['readInt16BE'](offset);
23: offset += 2;
24:
25:
26: var len = data['readInt16BE'](offset);
27: offset += 2;
28:
29: var msg = data.toString('utf8', offset, offset + len)
30:
31: console.log(headCode + '-' + headBackCode + '-' + msg);
32:
33: broadcast(msg, socket);
34: } else {
35: console.log('Message is not Buffer!');
36: }
37:
38: });
39:
40: socket.on('end', function() {
41: console.log('Close Connected: ' + socket);
42: clients.splice(clients.indexOf(socket));
43: });
44:
45: function broadcast(message, sender) {
46: clients.forEach(function(client) {
47: //if (client === sender) {
48: client.write(message);
49: // }
50: });
51: }
52:
53: }).listen(PORT, HOST);
54:
55:
56: console.log('服務已啓動');如果一切正常，前臺發送數據時，控制檯上能看到解析的數據：
1000是頭標識，10爲消息返回標識，abcdefg爲發送的字符串。
1: var data:MeteoricSocketSendDataProxy = SocketManager.getInstance().getSocketSendDataProxy(1000, 10) as MeteoricSocketSendDataProxy;
2: data.addStringData(msg);
3:
4: SocketManager.getInstance().sendDataProxy(data);上面的解析過程可能比較繁瑣，你可以使用Node.js的ByteBuffer (nodejs的ByteBuffer，和C++通信的利器！)
作者：play175
https://npmjs.org/package/ByteBuffer
使用方法也比較簡單：
//使用ByteBuffer進行解包操作
var buf = new ByteBuffer(data);
var arr = buf.int32()
.short()
.short()
.string()
.unpack();
console.log(arr);
broadcast(arr[3], socket);
/*************************************************/
//原方法
var offset = data['readInt32BE'](0);
var headCode = data['readInt16BE'](offset);
offset += 2;
var headBackCode = data['readInt16BE'](offset);
offset += 2;
var len = data['readInt16BE'](offset);
offset += 2;
var msg = data.toString('utf8', offset, offset + len)
console.log(headCode + '-' + headBackCode + '-' + msg);
broadcast(msg, socket);有興趣的可以下載全部源碼(Flex-SDK4.5 + node.js)，點此立即下載>>
參考資料：