Created
July 13, 2017 16:06
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import java.io.IOException; | |
import java.net.InetSocketAddress; | |
import java.nio.channels.SelectionKey; | |
import java.nio.channels.Selector; | |
import java.nio.channels.ServerSocketChannel; | |
import java.util.Iterator; | |
import java.util.Set; | |
/** | |
* Created by weinanli on 13/07/2017. | |
*/ | |
public class BasicNIOUsage { | |
public static void main(String[] args) throws Exception { | |
Selector selector = Selector.open(); | |
ServerSocketChannel serverSocketChannel = ServerSocketChannel.open(); | |
serverSocketChannel.socket().bind(new InetSocketAddress(8080)); | |
serverSocketChannel.configureBlocking(false); | |
serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT); | |
while (!Thread.interrupted()) { | |
selector.select(); | |
Set selectedKeys = selector.selectedKeys(); | |
Iterator iterator = selectedKeys.iterator(); | |
while (iterator.hasNext()) { | |
SelectionKey key = (SelectionKey) (iterator.next()); | |
if (key.isAcceptable()) { | |
dispatchAccept(key); | |
} | |
iterator.remove(); | |
} | |
} | |
} | |
static void dispatchAccept(SelectionKey key) { | |
ServerSocketChannel serverSocketChannel = (ServerSocketChannel) key.channel(); | |
try { | |
System.out.println("Client request accepted"); | |
serverSocketChannel.accept(); | |
} catch (IOException e) { | |
e.printStackTrace(); | |
} | |
} | |
} |
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