java.nio.channels.DatagramChannel基本的UDP RX客戶端連接

Question

嘗試使用java.nio.channels.DatagramChannel完成一個基本的UDP客戶端接收器。我有以下的放在一起：

DatagramChannel dc = DatagramChannel.open(); 
dc.setOption(StandardSocketOptions.SO_RCVBUF, Integer.MAX_VALUE); 
dc.configureBlocking(true); 
int listeningPort = 4445; 
dc.connect(new InetSocketAddress(listeningPort)); 
ByteBuffer byteBuffer = ByteBuffer.allocateDirect(2048); 
dc.read(byteBuffer); 

我讓我的電話綁定例外連接：

Exception in thread "main" java.net.BindException: Cannot assign requested address: connect 
    at sun.nio.ch.Net.connect0(Native Method) 
    at sun.nio.ch.Net.connect(Unknown Source) 
    at sun.nio.ch.DatagramChannelImpl.connect(Unknown Source) 

我已經試過周圍切換端口，沒有運氣...什麼想法？

我一直在關注： http://tutorials.jenkov.com/java-nio/datagram-channel.html

如果我做的：

dc.socket().bind(new InetSocketAddress(listeningPort)); 

，而不是連接，我得到：

Exception in thread "main" java.nio.channels.NotYetConnectedException 
at sun.nio.ch.DatagramChannelImpl.read(Unknown Source) 

Answer 1

我之前做類似的東西，那就是我的代碼位：

DatagramChannel datagramChannel = DatagramChannel.open(); 
    DatagramSocket datagramSocket = datagramChannel.socket(); 
    datagramSocket.setReuseAddress(true); 
    datagramSocket.bind(new InetSocketAddress(HOST, PORT)); 
    datagramSocket.connect(address); 
    datagramChannel.configureBlocking(false); 

    datagramChannel.register(selector, SelectionKey.OP_READ); 

我HOST = "localhost" 和PORT = 19000