/// <summary>
/// 回调函数
/// </summary>
/// <param name="ar"></param>
private void TCPCallBack(IAsyncResult ar)
{
ZXBC_TCPClient client = (ZXBC_TCPClient)ar.AsyncState;
if (client.NetWork.Connected)
{
NetworkStream ns = client.NetWork.GetStream();
try
{
byte[] recdata = new byte[ns.EndRead(ar)];
Array.Copy(client.buffer, recdata, recdata.Length);
if (recdata.Length > 0)
{
if (DataReceived != null)
{
DataReceived.BeginInvoke(client.Name, recdata, null, null);//异步输出数据
}
ns.BeginRead(client.buffer, 0, client.buffer.Length, new AsyncCallback(TCPCallBack), client);
}
else
{
client.DisConnect();
lstClient.Remove(client);
BindLstClient();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
client.DisConnect();
lstClient.Remove(client);
BindLstClient();
}
}
}
public bool SendData(byte[] data)
{
if (TCPClient_Connect_listBox.SelectedItems.Count > 0)
{
for (int i = 0; i < TCPClient_Connect_listBox.SelectedItems.Count; i++)
{
ZXBC_TCPClient selClient = (ZXBC_TCPClient)TCPClient_Connect_listBox.SelectedItems[i];
try
{
selClient.NetWork.GetStream().Write(data, 0, 1024);
}
catch (Exception ex)
{
MessageBox.Show(selClient.Name + ":" + ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
return(true);
}
else
{
MessageBox.Show("无可用连接", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
/// <summary>
/// 连接新的服务端
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TCP_Connect_button_Click(object sender, EventArgs e)
{
ZXBC_TCPClient client = new ZXBC_TCPClient();
try
{
client.NetWork = new TcpClient();
client.NetWork.Connect(TCPClient_IP_textBox.Text.Trim(), (int)TCPClient_Port_numericUD.Value);//连接服务端
client.SetName();
client.NetWork.GetStream().BeginRead(client.buffer, 0, client.buffer.Length, new AsyncCallback(TCPCallBack), client);
lstClient.Add(client);
BindLstClient();
}
catch (Exception ex)
{
client.DisConnect();
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// 客户端连接初始化
/// </summary>
/// <param name="o"></param>
private void Acceptor(IAsyncResult o)
{
TcpListener server = o.AsyncState as TcpListener;
try
{
//初始化连接的客户端
ZXBC_TCPClient newClient = new ZXBC_TCPClient();
newClient.NetWork = server.EndAcceptTcpClient(o);
lstClient.Add(newClient);
BindLstClient();
newClient.NetWork.GetStream().BeginRead(newClient.buffer, 0, newClient.buffer.Length, new AsyncCallback(TCPCallBack), newClient);
server.BeginAcceptTcpClient(new AsyncCallback(Acceptor), server);//继续监听客户端连接
}
catch (ObjectDisposedException ex)
{ //监听被关闭
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
