C# 如何使用StreamSocket广播消息
我按照教程创建了WindowsPhone设备,并通过流套接字进行连接 互相发送信息效果很好。 但我不知道如何广播信息。有人能告诉我怎么做吗C# 如何使用StreamSocket广播消息,c#,windows-phone-8,stream-socket-client,C#,Windows Phone 8,Stream Socket Client,我按照教程创建了WindowsPhone设备,并通过流套接字进行连接 互相发送信息效果很好。 但我不知道如何广播信息。有人能告诉我怎么做吗 private StreamSocket _socket = new StreamSocket(); private StreamSocketListener _listener = new StreamSocketListener(); private List<StreamSocket> _connections =
private StreamSocket _socket = new StreamSocket();
private StreamSocketListener _listener = new StreamSocketListener();
private List<StreamSocket> _connections = new List<StreamSocket>();
private bool _connecting = false;
protected override void OnNavigatedTo(NavigationEventArgs e)
{
//myConnectionTargetText.Text = "192.168.1.3";
myConnectionTargetText.Text = "localhost"; // a TextBox
}
async private void WaitForData(StreamSocket socket)
{
var dr = new DataReader(socket.InputStream);
//dr.InputStreamOptions = InputStreamOptions.Partial;
var stringHeader = await dr.LoadAsync(4);
if (stringHeader == 0)
{
LogMessage(string.Format("Disconnected (from {0})", socket.Information.RemoteHostName.DisplayName));
return;
}
int strLength = dr.ReadInt32();
uint numStrBytes = await dr.LoadAsync((uint)strLength);
string msg = dr.ReadString(numStrBytes);
LogMessage(string.Format("Received (from {0}): {1}", socket.Information.RemoteHostName.DisplayName, msg));
WaitForData(socket);
}
async private void Connect(object sender, RoutedEventArgs e)
{
try
{
_connecting = true;
await _socket.ConnectAsync(new HostName(myConnectionTargetText.Text), "3011");
_connecting = false;
LogMessage(string.Format("Connected to {0}", _socket.Information.RemoteHostName.DisplayName));
WaitForData(_socket);
}
catch (Exception ex)
{
_connecting = false;
}
}
async private void Listen(object sender, RoutedEventArgs e)
{
_listener.ConnectionReceived += listenerConnectionReceived;
await _listener.BindServiceNameAsync("3011");
LogMessage(string.Format("listening on {0}...", _listener.Information.LocalPort));
}
void listenerConnectionReceived(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
{
_connections.Add(args.Socket);
LogMessage(string.Format("Incoming connection from {0}", args.Socket.Information.RemoteHostName.DisplayName));
WaitForData(args.Socket);
}
private void LogMessage(string message)
{
Dispatcher.BeginInvoke(() =>
{
myText.Text += message + Environment.NewLine;
});
}
async private void SendMessage(StreamSocket socket, string message)
{
var writer = new DataWriter(socket.OutputStream);
var len = writer.MeasureString(message); // Gets the UTF-8 string length.
writer.WriteInt32((int)len);
writer.WriteString(message);
var ret = await writer.StoreAsync();
writer.DetachStream();
LogMessage(string.Format("Sent (to {0}) {1}", socket.Information.RemoteHostName.DisplayName, message)); // richTextBox
}
private StreamSocket _socket=new StreamSocket();
私有StreamSocketListener _listener=new StreamSocketListener();
私有列表_connections=new List();
私有布尔_连接=假;
受保护的覆盖无效OnNavigatedTo(NavigationEventArgs e)
{
//myConnectionTargetText.Text=“192.168.1.3”;
myConnectionTargetText.Text=“localhost”//文本框
}
异步私有void WaitForData(StreamSocket套接字)
{
var dr=新的数据读取器(socket.InputStream);
//dr.InputStreamOptions=InputStreamOptions.Partial;
var stringHeader=wait dr.LoadAsync(4);
如果(stringHeader==0)
{
LogMessage(string.Format(“Disconnected(from{0})”,socket.Information.RemoteHostName.DisplayName);
返回;
}
int strLength=dr.ReadInt32();
uint numStrBytes=等待dr.LoadAsync((uint)strLength);
string msg=dr.ReadString(numStrBytes);
LogMessage(string.Format(“接收(从{0}):{1}”,socket.Information.RemoteHostName.DisplayName,msg));
WaitForData(插座);
}
异步专用void Connect(对象发送方,RoutedEventArgs e)
{
尝试
{
_连接=真;
wait_socket.ConnectAsync(新主机名(myConnectionTargetText.Text),“3011”);
_连接=错误;
LogMessage(string.Format(“连接到{0}”,_socket.Information.RemoteHostName.DisplayName));
WaitForData(_插座);
}
捕获(例外情况除外)
{
_连接=错误;
}
}
异步私有void侦听(对象发送方,RoutedEventArgs e)
{
_listener.ConnectionReceived+=listenerConnectionReceived;
wait_listener.BindServiceNameAsync(“3011”);
LogMessage(string.Format(“侦听{0}…”,_listener.Information.LocalPort));
}
接收无效ListenerConnection(StreamSocketListener发送方,StreamSocketListenerConnectionReceivedEventArgs参数)
{
_添加(args.Socket);
LogMessage(string.Format(“来自{0}的传入连接”,args.Socket.Information.RemoteHostName.DisplayName));
WaitForData(参数套接字);
}
私有无效日志消息(字符串消息)
{
Dispatcher.BeginInvoke(()=>
{
myText.Text+=message+Environment.NewLine;
});
}
异步私有void发送消息(StreamSocket套接字、字符串消息)
{
var writer=新的数据编写器(socket.OutputStream);
var len=writer.MeasureString(message);//获取UTF-8字符串长度。
writer.WriteInt32((int)len);
writer.WriteString(消息);
var ret=await writer.StoreAsync();
writer.DetachStream();
LogMessage(string.Format(“发送(到{0}){1}”,socket.Information.RemoteHostName.DisplayName,message));//richTextBox
}
不可能通过流套接字进行多播,因为流套接字是端点到端点的连接
您有两个选择:
DatagramSocket
)并使用多播