Mina初学例子

服务端：

package com.mina.demo;

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

import org.apache.mina.common.ByteBuffer;
import org.apache.mina.common.IoAcceptor;
import org.apache.mina.common.SimpleByteBufferAllocator;
import org.apache.mina.filter.LoggingFilter;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.transport.socket.nio.SocketAcceptor;
import org.apache.mina.transport.socket.nio.SocketAcceptorConfig;

/**
 * @author Qixuan.Chen
 * 创建时间：2015年8月7日
 */
public class MinaTimeServer {
	
	private static final int PORT=9123;
	
	public static void main(String[] args) throws IOException { 
		//设置buffer 
        ByteBuffer.setUseDirectBuffers(false); 
        ByteBuffer.setAllocator(new SimpleByteBufferAllocator()); 
        //定义acceptor 
        IoAcceptor acceptor = new SocketAcceptor(); 
        //定义config 
        SocketAcceptorConfig cfg = new SocketAcceptorConfig(); 
        //设置config,加入filter 
        cfg.getSessionConfig().setReuseAddress( true ); 
        cfg.getFilterChain().addLast( "logger", new LoggingFilter() ); 
        cfg.getFilterChain().addLast( "codec", new ProtocolCodecFilter( new TextLineCodecFactory( Charset.forName( "UTF-8" )))); 
        //加入port handler cfg 
        acceptor.bind( new InetSocketAddress(PORT), new TimeServerHandler(), cfg); 
        System.out.println("MINA Time server started."); 
	}

}

服务端处理类：

package com.mina.demo;

import java.net.InetSocketAddress;
import java.util.Date;

import org.apache.mina.common.IdleStatus;
import org.apache.mina.common.IoHandlerAdapter;
import org.apache.mina.common.IoSession;
import org.apache.mina.common.TransportType;
import org.apache.mina.transport.socket.nio.SocketSessionConfig;

/**
 * @author Qixuan.Chen
 * 创建时间：2015年8月7日
 * 对应的handler ,handler的作用是在对应的网事件的处理代码 
 */
public class TimeServerHandler extends IoHandlerAdapter{
	
	public void exceptionCaught(IoSession session, Throwable t) throws Exception { 
        t.printStackTrace(); 
        session.close(); 
    } 

    public void messageReceived(IoSession session, Object msg) throws Exception { 
        String str = msg.toString(); 
        //如果是quit就关闭session退出 
        if( str.trim().equalsIgnoreCase("quit") ) { 
            session.close(); 
            return; 
        } 
        //否则打印当前日期 
        //Date date = new Date(); 
        //session.write( date.toString() );
        //String clientIP = ((InetSocketAddress)session.getRemoteAddress()).getAddress().getHostAddress();
        String clientIP = ((InetSocketAddress)session.getRemoteAddress()).getAddress().getHostAddress();//获取远程客户端的IP
        String result = "["+clientIP+"]:"+ str;
        session.write(new String(result.getBytes("GBK"),"UTF-8"));
        System.out.println("Message written"); 
    } 

    public void sessionCreated(IoSession session) throws Exception { 
        System.out.println("Session created"); 

        if( session.getTransportType() == TransportType.SOCKET ) 
            ((SocketSessionConfig) session.getConfig() ).setReceiveBufferSize( 2048 ); 

        session.setIdleTime( IdleStatus.BOTH_IDLE, 10 );
    } 

}

需要导入的依赖：

		<!-- mina -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.5.8</version>
		</dependency>
		
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-jdk14</artifactId>
			<version>1.6.1</version>
		</dependency>
		
		<dependency>
			<groupId>org.apache.mina</groupId>
			<artifactId>mina-core</artifactId>
			<version>1.1.7</version>
		</dependency>

测试：

cmd进入doc窗口

先启动服务端

telnet  127.0.0.1   9094