1、相关资源

MINA：http://mina.apache.org/mina-project/quick-start-guide.html

jar包下载：http://download.csdn.net/detail/hulan_baby/8424891

源代码(客户端)：http://download.csdn.net/detail/hulan_baby/8424897

源代码(服务器端)：http://download.csdn.net/detail/hulan_baby/8424903

由于我没有资源分了，所以请各位有分的亲们贡献一点了，十分感谢。

2、工程目录

log4j.properties不需要

3、服务器端核心代码

import java.util.Date;

import org.apache.log4j.Logger;

import org.apache.mina.common.IdleStatus;

import org.apache.mina.common.IoHandlerAdapter;

import org.apache.mina.common.IoSession;

public class TimeServerHandler extends IoHandlerAdapter {

// 继承了7种方法

public static Logger logger = Logger.getLogger(TimeServerHandler.class);

// 服务器端与客户端创建连接

@Override

public void sessionCreated(IoSession session) {

// 显示客户端的ip和端口

System.out.println(session.getRemoteAddress().toString());

logger.info("sessionCreated");

}

// 从端口接受消息，会响应此方法来对消息进行处理

@Override

public void messageReceived(IoSession session, Object message)

throws Exception {

String str = message.toString();

if (str.trim().equalsIgnoreCase("quit")) {

session.close();// 结束会话

return;

} else if (str.trim().equalsIgnoreCase("hello")) {

session.write("how are you !");

// session.getAttribute("");

// session.setAttribute("");

}

Date date = new Date();

session.write(date.toString());// 返回当前时间的字符串

System.out.println("客户端收到的数据：" + message.toString());

System.out.println("Message written...");

}

@Override

public void exceptionCaught(IoSession session, Throwable cause)

throws Exception {

// TODO Auto-generated method stub

logger.info("服务器异常");

super.exceptionCaught(session, cause);

}

// 向客服端发送消息后会调用此方法

@Override

public void messageSent(IoSession session, Object message) throws Exception {

// TODO Auto-generated method stub

super.messageSent(session, message);

logger.info("向客户端消息发送成功");

}

// 关闭与客户端的连接时会调用此方法

@Override

public void sessionClosed(IoSession session) throws Exception {

// TODO Auto-generated method stub

logger.info("服务器端关闭与客户端的连接");

super.sessionClosed(session);

}

@Override

public void sessionOpened(IoSession session) throws Exception {

// TODO Auto-generated method stub

logger.info("服务器与客户端连接打开");

super.sessionOpened(session);

}

@Override

public void sessionIdle(IoSession session, IdleStatus status)

throws Exception {

logger.info("服务器进入空闲......");

System.out.println("IDLE " + session.getIdleCount(status));

}

}测试：

cmd——>telnet 127.0.0.1 9123,运用此方法亦可测试。

此时有可能会有错误，“telnet不是内部或外部命令.......”.

解决方法：http://jingyan.baidu.com/article/7908e85c6ec355af491ad265.html4、客户端(核心代码)

5、结果

先启动服务器端，再启动客户端

服务器端显示：

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: CREATED

/127.0.0.1:61982

[QC] INFO [NioProcessor-1] TimeServerHandler.sessionCreated(17) | sessionCreated

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: OPENED

[QC] INFO [NioProcessor-1] TimeServerHandler.sessionOpened(68) | 服务器与客户端连接打开

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: RECEIVED: HeapBuffer[pos=0 lim=6 cap=2048: 68 65 6C 6C 6F 0A]

客户端收到的数据：hello

Message written...

[QC] INFO [NioProcessor-1] TimeServerHandler.messageSent(54) | 向客户端消息发送成功

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=14 cap=15: 68 6F 77 20 61 72 65 20 79 6F 75 20 21 0A]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=0 cap=0: empty]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: RECEIVED: HeapBuffer[pos=0 lim=5 cap=2048: 71 75 69 74 0A]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=29 cap=30: 54 68 75 20 46 65 62 20 30 35 20 31 30 3A 30 31...]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=0 cap=0: empty]

2015-2-5 10:01:44 org.apache.mina.filter.logging.LogLevel$4 log

信息: CLOSED

[QC] INFO [NioProcessor-1] TimeServerHandler.messageSent(54) | 向客户端消息发送成功

[QC] INFO [NioProcessor-1] TimeServerHandler.sessionClosed(61) | 服务器端关闭与客户端的连接

客户端显示：

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: CREATED

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: OPENED

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=6 cap=7: 68 65 6C 6C 6F 0A]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=0 cap=0: empty]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=5 cap=6: 71 75 69 74 0A]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: SENT: HeapBuffer[pos=0 lim=0 cap=0: empty]

how are you !

Thu Feb 05 10:01:43 CST 2015

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: RECEIVED: HeapBuffer[pos=0 lim=14 cap=2048: 68 6F 77 20 61 72 65 20 79 6F 75 20 21 0A]

2015-2-5 10:01:43 org.apache.mina.filter.logging.LogLevel$4 log

信息: RECEIVED: HeapBuffer[pos=0 lim=29 cap=2048: 54 68 75 20 46 65 62 20 30 35 20 31 30 3A 30 31...]

2015-2-5 10:01:44 org.apache.mina.filter.logging.LogLevel$4 log

信息: CLOSED

原文：http://blog.csdn.net/hulan_baby/article/details/43523977