/// <summary>
/// Demonstrates the client and server with derived classes.
/// </summary>
/// <returns></returns>
private async Task RunAsync()
{
int port = 7777;
var server = new AsyncTcpListener <DemoTcpServerClient>
{
IPAddress = IPAddress.IPv6Any,
Port = port
};
server.Message += (s, a) => Console.WriteLine("Server: " + a.Message);
var serverTask = server.RunAsync();
var client = new DemoTcpClient
{
IPAddress = IPAddress.IPv6Loopback,
Port = port,
//AutoReconnect = true
};
client.Message += (s, a) => Console.WriteLine("Client: " + a.Message);
var clientTask = client.RunAsync();
await Task.Delay(10000);
Console.WriteLine("Program: stopping server");
server.Stop(true);
await serverTask;
client.Dispose();
await clientTask;
}
public static void StartServer()
{
server = new AsyncTcpListener
{
IPAddress = IPAddress.IPv6Any,
Port = 2222,
ClientConnectedCallback = tcpClient =>
new AsyncTcpClient
{
ServerTcpClient = tcpClient,
ConnectedCallback = async(serverClient, isReconnected) =>
{
await Task.Delay(500);
byte[] bytes = Encoding.UTF8.GetBytes($"Hello, {tcpClient.Client.RemoteEndPoint}, my name is Server. Talk to me.");
await serverClient.Send(new ArraySegment <byte>(bytes, 0, bytes.Length));
},
ReceivedCallback = async(serverClient, count) =>
{
byte[] bytes = serverClient.ByteBuffer.Dequeue(count);
string message = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
Log.Debug("Server client: received: {0}", message);
if (message.Contains("REQ"))
{
bytes = Encoding.UTF8.GetBytes("Server=>Webcam.GetFrame()");
}
else
{
bytes = Encoding.UTF8.GetBytes("No frame requested=>" + message);
}
await serverClient.Send(new ArraySegment <byte>(bytes, 0, bytes.Length));
if (message == "bye")
{
// Let the server close the connection
serverClient.Disconnect();
}
}
}.RunAsync()
};
server.Message += (s, a) => Log.Debug("Server: {0}", a.Message);
server.RunAsync().GetAwaiter().GetResult();
}
/// <summary>
/// Demonstrates the client and server by using the classes directly with callback methods.
/// </summary>
/// <returns></returns>
private async Task RunAsync2()
{
int port = 7777;
var server = new AsyncTcpListener
{
IPAddress = IPAddress.IPv6Any,
Port = port,
ClientConnectedCallback = tcpClient =>
new AsyncTcpClient
{
ServerTcpClient = tcpClient,
ConnectedCallback = async(serverClient, isReconnected) =>
{
await Task.Delay(500);
byte[] bytes = Encoding.UTF8.GetBytes("Hello, my name is Server. Talk to me.");
await serverClient.Send(new ArraySegment <byte>(bytes, 0, bytes.Length));
},
ReceivedCallback = async(serverClient, count) =>
{
byte[] bytes = serverClient.ByteBuffer.Dequeue(count);
string message = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
Console.WriteLine("Server client: received: " + message);
bytes = Encoding.UTF8.GetBytes("You said: " + message);
await serverClient.Send(new ArraySegment <byte>(bytes, 0, bytes.Length));
}
}.RunAsync()
};
server.Message += (s, a) => Console.WriteLine("Server: " + a.Message);
var serverTask = server.RunAsync();
var client = new AsyncTcpClient
{
IPAddress = IPAddress.IPv6Loopback,
Port = port,
//AutoReconnect = true,
ConnectedCallback = async(c, isReconnected) =>
{
await c.WaitAsync(); // Wait for server banner
await Task.Delay(50); // Let the banner land in the console window
Console.WriteLine("Client: type a message at the prompt, or empty to quit (server shutdown in 10s)");
while (true)
{
Console.Write("> ");
var consoleReadCts = new CancellationTokenSource();
var consoleReadTask = ConsoleEx.ReadLineAsync(consoleReadCts.Token);
// Wait for user input or closed connection
var completedTask = await Task.WhenAny(consoleReadTask, c.ClosedTask);
if (completedTask == c.ClosedTask)
{
// Closed connection
consoleReadCts.Cancel();
break;
}
// User input
string enteredMessage = await consoleReadTask;
if (enteredMessage == "")
{
c.Dispose();
break;
}
byte[] bytes = Encoding.UTF8.GetBytes(enteredMessage);
await c.Send(new ArraySegment <byte>(bytes, 0, bytes.Length));
// Wait for server response or closed connection
await c.ByteBuffer.WaitAsync();
if (c.IsClosing)
{
break;
}
}
},
ReceivedCallback = (c, count) =>
{
byte[] bytes = c.ByteBuffer.Dequeue(count);
string message = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
Console.WriteLine("Client: received: " + message);
return(Task.CompletedTask);
}
};
client.Message += (s, a) => Console.WriteLine("Client: " + a.Message);
var clientTask = client.RunAsync();
await Task.Delay(10000);
Console.WriteLine("Program: stopping server");
server.Stop(true);
await serverTask;
client.Dispose();
await clientTask;
}
/// <summary>
/// 数据中心服务
/// </summary>
/// <returns></returns>
private async Task StartTask()
{
IOConfig = new CenterServerConfig();
//////////监听端处理
int port = 8888;//默认是8888端口
int.TryParse(IOConfig.LocalPort, out port);
var server = new AsyncTcpListener
{
//获取本机IP地址
IPAddress = IPAddress.Parse(GetLocalIp()),
Port = port,
ClientConnectedCallback = tcpClient =>
new AsyncTcpClient
{
//获取或设置要使用的TcpClient。仅适用于接收
ServerTcpClient = tcpClient,
//连接服务器成功
ConnectedCallback = async(serverClient, isReconnected) =>
{
await Task.Delay(100);
if (MessageEvent != null)
{
MessageEvent(serverClient.IPAddress.ToString() + "连接成功: ", null);
}
//服务器连接成功
},
//接收客户端数据,并处理
ReceivedCallback = async(serverClient, count) =>
{
byte[] bytes = serverClient.ByteBuffer.Dequeue(count);
string message = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
if (MessageEvent != null)
{
MessageEvent(serverClient.IPAddress.ToString() + "SendData: " + message, null);
}
string[] infos = message.Split('-');
switch (infos[0])
{
case "SELECT": //查询sql语句
break;
case "UPDATE": //更新sql语句
break;
case "INSERT": //插入sql语句
break;
case "DELETE": //删除sql语句
break;
case "PUBLISH": //采集站发布
break;
}
//发送数据或者执行操作
bytes = Encoding.UTF8.GetBytes("You said: " + message);
await serverClient.Send(new ArraySegment <byte>(bytes, 0, bytes.Length));
//断开连接,防止长时间被占用
serverClient.Disconnect();
}
}.RunAsync()
};
server.Message += (s, a) => {
if (MessageEvent != null)
{
MessageEvent("Server: " + a.Message, null);
}
};
var serverTask = server.RunAsync();
server.Stop(true);
await serverTask;
}