Niosocket Server Client

Recently looking at the Netty framework, incidentally wrote the NIO Socketchannel server and client

Server.java

Importjava.io.IOException;Importjava.net.InetSocketAddress;ImportJava.nio.ByteBuffer;ImportJava.nio.channels.ServerSocketChannel;ImportJava.nio.channels.SocketChannel;/*** Created by Guanxianseng on 2017/8/18.*/ Public classServer {Private Static voidReadmessage ()throwsIOException {serversocketchannel server=Serversocketchannel.open (); Server.socket (). Bind (NewInetsocketaddress (8888));  while(true) {Socketchannel client=server.accept (); Bytebuffer Buffer= Bytebuffer.allocate (1024);            Client.read (buffer); System.out.println ("Server Received msg =" +NewString (Buffer.array ()));        SendMessage (client); }    }    Private Static voidSendMessage (Socketchannel client)throwsIOException {bytebuffer buffer= Bytebuffer.allocate (1024); String msg= "Server time =" +System.currenttimemillis ();        Buffer.put (Msg.getbytes ());        Buffer.flip ();    Client.write (buffer); }     Public Static voidMain (string[] args)throwsIOException {readmessage (); }}

Client.java

Importjava.io.IOException;Importjava.net.InetSocketAddress;ImportJava.nio.ByteBuffer;ImportJava.nio.channels.SocketChannel;/*** Created by Guanxianseng on 2017/8/18.*/ Public classClient {Private StaticSocketchannel client =NULL; Static {        Try{init (); } Catch(IOException e) {e.printstacktrace (); }    }    Private Static voidInit ()throwsIOException {Client=Socketchannel.open (); Client.connect (NewInetsocketaddress ("127.0.0.1", 8888)); }    Private Static voidSendMessage (String message)throwsIOException {bytebuffer buffer= Bytebuffer.allocate (1024);        Buffer.put (Message.getbytes ());        Buffer.flip ();  while(Buffer.hasremaining ()) {client.write (buffer); }//client.close ();    }    Private Static voidReadmessage () {Thread reader=NewThread (NewRunnable () {@Override Public voidrun () {Bytebuffer buffer= Bytebuffer.allocate (1024); Try{client.read (buffer);//Buffer.flip ();System.out.println (NewString (Buffer.array ())); } Catch(IOException e) {e.printstacktrace ();        }            }        });    Reader.start (); }     Public Static voidMain (string[] args)throwsIOException {sendMessage ("Hello NiO");    Readmessage (); }}

The whole routine is the same as the socket and ServerSocket routines, which is blocked form. NiO can be set to non-blocking, which needs to be used in conjunction with selector. This is not the same as the socket, ServerSocket.

Niosocket Server Client