JAVA Apache Mina Demo

サーバーを作る　

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.charset.Charset;
import org.apache.mina.core.service.IoAcceptor;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
public class MinaTimeServer {
// port -》》
private static final int PORT = 6488;

public static void main(String[] args) throws IOException {
    // acceptor
    IoAcceptor acceptor = new NioSocketAcceptor();
    acceptor.getSessionConfig().setReadBufferSize(2048);
    acceptor.getSessionConfig().setIdleTime(IdleStatus.BOTH_IDLE, 10);
    // logger
    acceptor.getFilterChain().addLast("logger", new LoggingFilter());
    // Code
    acceptor.getFilterChain().addLast(
        "codec",
        new ProtocolCodecFilter(new TextLineCodecFactory(Charset.forName("UTF-8"))));
    // server
    acceptor.setHandler(new TimeServerHandler());
    // port
    acceptor.bind(new InetSocketAddress(PORT));
    // run
    acceptor.bind();
}

---------------------------------------------------------------- :kissing: 
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;

/**
 * サーバー　server
 */
public class TimeServerHandler extends IoHandlerAdapter {

    /**
     * connection 
     */
    @Override
    public void sessionCreated(IoSession session){
        // enable ip address and port
        System.out.println(session.getRemoteAddress().toString());
    }

    @Override
    public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
        cause.printStackTrace();
    }

    /**
     * message 
     */
    @Override
    public void messageReceived(IoSession session, Object message) throws Exception {
        String strMsg = message.toString();
        if (strMsg.trim().equalsIgnoreCase("quit")) {
            session.close(true);
            return;
        }
        // return message by string
        session.write("Hi Client!");
        // print message
        System.out.println("Message written : " + strMsg);
    }

    @Override
    public void sessionIdle(IoSession session, IdleStatus status) throws Exception {
        System.out.println("IDLE" + session.getIdleCount(status));
    }

}
-------------------------------------------------- :sleeping: 
Client

import java.net.InetSocketAddress;
import java.nio.charset.Charset;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.nio.NioSocketConnector;

public class MinaTimeClient {

    public static void main(String[] args){
        // create user connection contianer
        NioSocketConnector connector = new NioSocketConnector();
        connector.getFilterChain().addLast("logger", new LoggingFilter());
        connector.getFilterChain().addLast("codec", 
                new ProtocolCodecFilter(new TextLineCodecFactory(Charset.forName("UTF-8"))));

        // set outTime
        connector.setConnectTimeoutCheckInterval(30);
        connector.setHandler(new TimeClientHandler());

        // create link
        ConnectFuture cf = connector.connect(new InetSocketAddress("192.168.2.109", 6488));
        // wait for link will be connection
        cf.awaitUninterruptibly();

        cf.getSession().write("Hi Server!");
        cf.getSession().write("quit");

        // wait link offline
        cf.getSession().getCloseFuture().awaitUninterruptibly();
        // discharge
        connector.dispose();
    }
}
----------------------------------------------- :unamused: 

import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;

public class TimeClientHandler extends IoHandlerAdapter {

    public void messageReceived(IoSession session, Object message) throws Exception {
        String content = message.toString();
        System.out.println("client receive a message is : " + content);
    }

    public void messageSent(IoSession session, Object message) throws Exception {
        System.out.println("messageSent -> ：" + message);
    }

}
これは　簡単なDEMOでした〜
![pixelavatar48.png](https://qiita-image-store.s3.amazonaws.com/0/85191/ec3db6eb-53f1-599b-19ac-25cfc7f15b73.png)