我正在尝试学习 TCP 服务器/客户端交互。我想知道如何使用 GUI 一直监听端口。目前我正在使用此代码:
private void Form1_Load(object sender, EventArgs e)
{
CreateServer();
}
void CreateServer()
{
TcpListener tcp = new TcpListener(25565);
tcp.Start();
Thread t = new Thread(() =>
{
while (true)
{
var tcpClient = tcp.AcceptTcpClient();
ThreadPool.QueueUserWorkItem((_) =>
{
Socket s = tcp.AcceptSocket();
console.Invoke((MethodInvoker)delegate { console.Text += "Connection esatblished: " + s.RemoteEndPoint + Environment.NewLine; });
byte[] b = new byte[100];
int k = s.Receive(b);
for (int i = 0; i < k; i++)
{
console.Text += Convert.ToChar(b[i]);
incoming += Convert.ToChar(b[i]);
}
MessageBox.Show(incoming);
console.Invoke((MethodInvoker)delegate { console.Text += incoming + Environment.NewLine; });
list.Invoke((MethodInvoker)delegate { list.Items.Add(incoming); });
ASCIIEncoding asen = new ASCIIEncoding();
s.Send(asen.GetBytes("\n"));
tcpClient.Close();
}, null);
}
});
t.IsBackground = true;
t.Start();
}
任何帮助将不胜感激。 最佳答案
简短回答 - 在单独的线程/任务 (TPL) 中运行 TCP 监听器。
对于完整的工作解决方案,您还必须使用取决于您使用的框架的特殊技术将 UI 表单单独线程的任何更改调度到主线程,我的意思是 WPF/WinForms/任何。
下面的代码对我有用。之前阅读 TODO 部分。
去做:
public System.Windows.Forms.TextBox console;
public System.Windows.Forms.ListBox incommingMessages;
private System.Windows.Forms.Button sendSampleDataButton;
入口点:
private static Form1 form;
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
form = new Form1();
form.Load += OnFormLoad;
Application.Run(form);
}
private static void OnFormLoad(object sender, EventArgs e)
{
CreateServer();
}
服务器:
private static void CreateServer()
{
var tcp = new TcpListener(IPAddress.Any, 25565);
tcp.Start();
var listeningThread = new Thread(() =>
{
while (true)
{
var tcpClient = tcp.AcceptTcpClient();
ThreadPool.QueueUserWorkItem(param =>
{
NetworkStream stream = tcpClient.GetStream();
string incomming;
byte[] bytes = new byte[1024];
int i = stream.Read(bytes, 0, bytes.Length);
incomming = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
form.console.Invoke(
(MethodInvoker)delegate
{
form.console.Text += String.Format(
"{0} Connection esatblished: {1}{2}",
DateTime.Now,
tcpClient.Client.RemoteEndPoint,
Environment.NewLine);
});
MessageBox.Show(String.Format("Received: {0}", incomming));
form.incommingMessages.Invoke((MethodInvoker)(() => form.incommingMessages.Items.Add(incomming)));
tcpClient.Close();
}, null);
}
});
listeningThread.IsBackground = true;
listeningThread.Start();
}
客户端
private void button1_Click(object sender, EventArgs e)
{
Connect("localhost", "hello localhost " + Guid.NewGuid());
}
static void Connect(String server, String message)
{
try
{
Int32 port = 25565;
TcpClient client = new TcpClient(server, port);
Byte[] data = System.Text.Encoding.ASCII.GetBytes(message);
NetworkStream stream = client.GetStream();
// Send the message to the connected TcpServer.
stream.Write(data, 0, data.Length);
stream.Close();
client.Close();
}
catch (ArgumentNullException e)
{
Debug.WriteLine("ArgumentNullException: {0}", e);
}
catch (SocketException e)
{
Debug.WriteLine("SocketException: {0}", e);
}
}
截图:
关于c# - 我将如何持续监听带有 GUI 的端口?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9533013/