C# UDP 广播和接收示例

本文关键字:UDP 广播 | 更新日期: 2023-09-27 18:17:59

问题:我正在尝试在特定地址上绑定 udp 套接字。我会广播一个消息。同一个套接字需要能够接收消息。

当前代码:

static void Main()
{
    UdpClient Configuration = new UdpClient(new IPEndPoint(IPAddress.Parse(data.IPAddress), configuration.Port));  //set up the bind to the local IP address of my choosing
    ConfigurationServer.EnableBroadcast = true;
    Configuration.Connect(new IPEndpoint(IPAddress.Parse(data.BroadcastIP), configuration.Port);
    Listen();
 }
private void Listen()
{
    Task.Run(async () =>
            {
                while (true)
                {
                    var remoteIp = new IPEndPoint(IPAddress.Any, configuration.Port);
                    var data = await ConfigurationServer.ReceiveAsync();
                    // i would send based on what data i received here
                    int j = 32;
                }
            }
});
}   

我没有在侦听线程上接收数据。我知道另一端的代码是有效的,并且向 IP/端口组合发送定向 UDP 消息。

C# UDP 广播和接收示例

它可以简单地完成为

int PORT = 9876;
UdpClient udpClient = new UdpClient();
udpClient.Client.Bind(new IPEndPoint(IPAddress.Any, PORT));
var from = new IPEndPoint(0, 0);
var task = Task.Run(() =>
{
    while (true)
    {
        var recvBuffer = udpClient.Receive(ref from);
        Console.WriteLine(Encoding.UTF8.GetString(recvBuffer));
    }
});
var data = Encoding.UTF8.GetBytes("ABCD");
udpClient.Send(data, data.Length, "255.255.255.255", PORT);
task.Wait();