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socket测试远程地址能否连接并为连接设置超时（转）
public class TestConnect
{
string hostIp = "";
int port = 3314;
public string recMsg = "";
Socket socketC = null;
private readonly ManualResetEvent TimeoutObject = new ManualResetEvent(false);
public TestConnect(string hostIp, int port)
{
this.hostIp = hostIp;
this.port = port;
}
public bool connect()
{
///创建终结点（EndPoint）
IPAddress ip = IPAddress.Parse(hostIp);//把ip地址字符串转换为IPAddress类型的实例
IPEndPoint ipe = new IPEndPoint(ip, port);//用指定的端口和ip初始化IPEndPoint类的新实例
///创建socket
socketC = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建一个socket对像，如果用udp协议，则要用SocketType.Dgram类型的套接字
try
{
return Connect(ipe,3000);
}
catch (SocketException ex)
{
socketC.Close();
socketC = null;
return false;
}
}
/// <summary>
/// Socket连接请求
/// </summary>
/// <param name="remoteEndPoint">网络端点</param>
/// <param name="timeoutMSec">超时时间</param>
public bool Connect(IPEndPoint remoteEndPoint, int timeoutMSec)
{
TimeoutObject.Reset();
socketC = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socketC.BeginConnect(remoteEndPoint, CallBackMethod, socketC);
//阻塞当前线程
if (TimeoutObject.WaitOne(timeoutMSec, false))
{
return true;
}
else
{
return false;
}
}
//--异步回调方法
private void CallBackMethod(IAsyncResult asyncresult)
{
//使阻塞的线程继续
Socket socket = asyncresult.AsyncState as Socket;
if (socket.Connected)
{
socket.EndConnect(asyncresult);
}
TimeoutObject.Set();
}
public void testOnline(string msg)
{
socketC.Send(Encoding.GetEncoding("gb2312").GetBytes(msg));
try
{
//创建一个通信线程
ParameterizedThreadStart pts = new ParameterizedThreadStart(ServerRecMsg);
Thread thr = new Thread(pts);
thr.IsBackground = true;
//启动线程
thr.Start(socketC);
}
catch
{ throw ;}
}
/// <summary>
/// 接收客户端发来的信息
/// </summary>
/// <param name="socketClientPara">客户端套接字对象</param>
private void ServerRecMsg(object socketClientPara)
{
Socket socketServer = socketClientPara as Socket;
byte[] arrServerRecMsg = new byte[100];
int len;
while ((len = socketServer.Receive(arrServerRecMsg)) != 0)
{
//将机器接受到的字节数组转换为人可以读懂的字符串
recMsg = Encoding.Default.GetString(arrServerRecMsg, 0, len);
if (recMsg == "online")
{
break;
}
}
}
}
socket测试远程地址能否连接并为连接设置超时（转）