/// <summary>
/// 接收数据
/// </summary>
/// <param name="sokConnection">用来接收的会话端</param>
private void ReceiveData(object sokConnection)
{
TCPSession tCPSession = sokConnection as TCPSession;
Socket SocketSession = tCPSession.Socket;
tCPSession.IsConnected = true;
while (tCPSession.IsConnected)
{
try
{
string ipEndPort = SocketSession.RemoteEndPoint.ToString();
// 定义一个2M的缓存区；
byte[] arrMsgRec = new byte[1024 * 1024 * 2];
// 将接受到的数据存入到输入 arrMsgRec中；
int length = -1;
try
{
length = SocketSession.Receive(arrMsgRec); // 接收数据，并返回数据的长度；
}
catch //一旦出现错误，立马断开连接
{
tCPSession.IsConnected = false;
// 从通信线程集合中删除被中断连接的通信线程对象；
string keystr = SocketSession.RemoteEndPoint.ToString();
//删除客户端字典中该socket
Dic_ClientSession.Remove(keystr);
//关闭线程
Dic_ClientThread[keystr].Abort();
//删除字典中该线程
Dic_ClientThread.Remove(keystr);
tCPSession = null;
SocketSession = null;
break;
}
//定义MD5pwd检验是不是该用户
byte[] md5pwd = new byte[16];
Array.Copy(arrMsgRec, 0, md5pwd, 0, 16);
if (!Enumerable.SequenceEqual(md5pwd, UseMd5(DateTime.Now.Hour.ToString())))
{
break;
}
//定义存储具体数据的byte数组
byte[] buf = new byte[length - 16];
//将缓冲区中的数据写入byte数组中
Array.Copy(arrMsgRec, 16, buf, 0, length - 16);
//获得byte数组表示数据的字符串
string strReceived = Encoding.UTF8.GetString(buf);
msg = ipEndPort + "-" + strReceived;
}
catch (Exception)
{
}
Thread.Sleep(100);
}
}
/// <summary>
/// 发送数据给指定的客户端
/// </summary>
/// <param name="_endPoint">客户端套接字</param>
/// <param name="_buf">发送的数组</param>
/// <returns>是否发送成功</returns>
public bool SendData(byte i, string _endPoint, byte[] _buf)
{
List <byte> buflist = new List <byte>();
buflist.Add(i);
buflist.AddRange(_buf);
byte[] buf = buflist.ToArray();
TCPSession myT = new TCPSession();
if (Dic_ClientSession.TryGetValue(_endPoint, out myT))
{
myT.Send(buf);
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 监听
/// </summary>
private void ListenConnecting()
{
while (Flag_Listen) // 持续不断的监听客户端的连接请求；
{
Socket sokConnection = TCPSocket.Accept(); // 一旦监听到一个客户端的请求，就返回一个与该客户端通信的 套接字；
// 将与客户端连接的 套接字 对象添加到集合中；
string str_EndPoint = sokConnection.RemoteEndPoint.ToString();
TCPSession myTCPSession = new TCPSession()
{
Socket = sokConnection
};
//创建线程接收数据
Thread th_ReceiveData = new Thread(ReceiveData);
th_ReceiveData.IsBackground = true;
th_ReceiveData.Start(myTCPSession);
//把线程及客户连接加入字典
Dic_ClientSession.Add(str_EndPoint, myTCPSession);
Dic_ClientThread.Add(str_EndPoint, th_ReceiveData);
Thread.Sleep(200);
}
}
