MINA的UDP协议demo

最近要写一个监控程序，于是想到了用下MINA，网上找了些例子感觉并不适用，写了一个小例子测试了一下，很简单。数据需要主要通过xml发送，所以这个例子实现了文本数据传输。

 

import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.charset.Charset;
import java.util.Date;

import org.apache.log4j.Logger;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.LineDelimiter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.DatagramSessionConfig;
import org.apache.mina.transport.socket.nio.NioDatagramAcceptor;

public class ServerHandler extends IoHandlerAdapter {

    private static Logger logger = Logger.getLogger(ServerHandler.class);

    public ServerHandler() throws IOException {
        NioDatagramAcceptor acceptor = new NioDatagramAcceptor();
        acceptor.setHandler(this);
        DefaultIoFilterChainBuilder chain = acceptor.getFilterChain();
        chain.addLast("logger", new LoggingFilter());
        chain.addLast("codec", new ProtocolCodecFilter(
                new TextLineCodecFactory(Charset.forName("UTF-8"),
                        LineDelimiter.NUL, LineDelimiter.NUL)));
        DatagramSessionConfig dcfg = acceptor.getSessionConfig();
        dcfg.setReuseAddress(true);
        acceptor.bind(new InetSocketAddress(1234));
    }

    public void messageReceived(IoSession session, Object message)
            throws Exception {
        System.out.println(message.toString() + ":" + new Date());
    }

    public void exceptionCaught(IoSession session, Throwable cause)
            throws Exception {
        logger.error("MINA发生异常：", cause);
    }

    public void sessionOpened(IoSession session) throws Exception {
        super.sessionOpened(session);
    }

    public void sessionIdle(IoSession session, IdleStatus status)
            throws Exception {
        super.sessionIdle(session, status);
    }

    public static void main(String[] args) throws IOException {
        new ServerHandler();
    }
}

 

import java.net.InetSocketAddress;
import java.nio.charset.Charset;

import org.apache.log4j.Logger;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.future.IoFuture;
import org.apache.mina.core.future.IoFutureListener;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.LineDelimiter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.DatagramConnector;
import org.apache.mina.transport.socket.nio.NioDatagramConnector;

public class Client extends IoHandlerAdapter {
    private static Logger logger = Logger.getLogger(Client.class);

    DatagramConnector connector;

    IoSession session;

    public Client() {
        connector = new NioDatagramConnector();
        connector.setHandler(this);
        DefaultIoFilterChainBuilder chain = connector.getFilterChain();
        chain.addLast("logger", new LoggingFilter());
        chain.addLast("codec", new ProtocolCodecFilter(
                new TextLineCodecFactory(Charset.forName("UTF-8"),
                        LineDelimiter.NUL, LineDelimiter.NUL)));
        IoFuture connFuture = connector.connect(new InetSocketAddress(
                "127.0.0.1", 1234));
        connFuture.addListener(new IoFutureListener() {
            public void operationComplete(IoFuture future) {
                ConnectFuture connFuture = (ConnectFuture) future;
                if (connFuture.isConnected()) {
                    session = future.getSession();
                    try {
                        sendData();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                } else {
                    logger.error("Not connected...exiting");
                }
            }
        });
    }

    private void sendData() throws InterruptedException {
        session.write("测试数据发送！");
    }

    public static void main(String[] args) {
        new Client();
    }
}

 

 

 

 

参考：

http://mina.apache.org/udp-tutorial.html

http://hi.baidu.com/yhzhw2121/blog/item/ba7b76552b30045d564e00e2.html