mina2 结合spring应用的小例子

最新推荐文章于 2024-08-04 23:36:48 发布

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#Spring #Mina #Bean #Apache #Socket

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本文介绍了一个使用Spring框架和MINA库实现的简单网络通信应用案例，包括配置文件详解、自定义编码器实现及客户端测试代码。

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先来看spring中的配置：

<?xml version="1.0" encoding="UTF-8"?>

</bean>
<bean id="executorFilter"
  class="org.apache.mina.filter.executor.ExecutorFilter" />
<bean id="mdcInjectionFilter"
  class="org.apache.mina.filter.logging.MdcInjectionFilter">
  <constructor-arg value="remoteAddress" />
</bean>
<bean id="codecFilter"
  class="org.apache.mina.filter.codec.ProtocolCodecFilter">
  <constructor-arg>
  
    <bean class="cn.org.handler.MyCodeFactory"></bean>//自定义的字符编码类
  </constructor-arg>
</bean>
<bean id="loggingFilter"
  class="org.apache.mina.filter.logging.LoggingFilter" />
<bean id="SampleHandler" class="cn.org.handler.HandlerTwo" />

<bean id="bossSampleHandler" class="cn.org.handler.HandlerOne" />

</beans>

然后再看 :SampleHandler:

很简单的:

package cn.org.handler;

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

public class HandlerTwo extends IoHandlerAdapter {

@Override
public void messageReceived(IoSession session, Object message)
   throws Exception {
  // TODO Auto-generated method stub
// super.messageReceived(session, message);
  System.out.println("message :"+message);
}

@Override
public void sessionClosed(IoSession session) throws Exception {
// TODO Auto-generated method stub
super.sessionClosed(session);
}

@Override
public void sessionIdle(IoSession session, IdleStatus status)
   throws Exception {
  // TODO Auto-generated method stub
  super.sessionIdle(session, status);
}

}

测试的：//启动可以通过telnet 端口号来，也可以写个客户端的测试类

public class Test {

/**
* @param args
*/
public static void main(String[] args) {
ClassPathXmlApplicationContext ct = new ClassPathXmlApplicationContext("applicationContext-mina.xml");

}

客户端的测试类：

public class ClintTest {

/**
* @param args
*/
public static void main(String[] args) {
  // 创建客户端连接器.
  NioSocketConnector connector = new NioSocketConnector();
  connector.getFilterChain().addLast( "logger", new LoggingFilter() );
  connector.getFilterChain().addLast( "codec", new ProtocolCodecFilter( new TextLineCodecFactory( Charset.forName( "GBK" )))); //设置编码过滤器
  connector.setConnectTimeout(1);
  connector.setHandler(new HandlerOne());//设置事件处理器
  ConnectFuture cf = connector.connect(
  new InetSocketAddress("127.0.0.1", 1235));//建立连接
  cf.awaitUninterruptibly();//等待连接创建完成
  cf.getSession().write("知识");//发送消息
  //cf.getSession().write("quit");//发送消息
  cf.getSession().close();
  cf.getSession().getCloseFuture().awaitUninterruptibly();//等待连接断开
  connector.dispose();

}

还有自定义的编码类：

package cn.org.handler;

import java.nio.charset.Charset;

import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFactory;
import org.apache.mina.filter.codec.ProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolEncoder;
import org.apache.mina.filter.codec.textline.LineDelimiter;
import org.apache.mina.filter.codec.textline.TextLineDecoder;
import org.apache.mina.filter.codec.textline.TextLineEncoder;

public class MyCodeFactory implements ProtocolCodecFactory {

     private final TextLineEncoder encoder;
     private final TextLineDecoder decoder;
     /*final static char endchar = 0x1a;*/
     final static char endchar = 0x0d;
     public MyCodeFactory() {
         this(Charset.forName("gb2312"));
     }
     public MyCodeFactory(Charset charset) {
     encoder = new TextLineEncoder(charset, LineDelimiter.UNIX);
          decoder = new TextLineDecoder(charset, LineDelimiter.AUTO);
          }

     @Override
  public ProtocolDecoder getDecoder(IoSession session) throws Exception {
   // TODO Auto-generated method stub
   return decoder;
  }
  @Override
  public ProtocolEncoder getEncoder(IoSession session) throws Exception {
   // TODO Auto-generated method stub
   return encoder;
  }
  public int getEncoderMaxLineLength() {
         return encoder.getMaxLineLength();
     }
     public void setEncoderMaxLineLength(int maxLineLength) {
         encoder.setMaxLineLength(maxLineLength);
     }
     public int getDecoderMaxLineLength() {
         return decoder.getMaxLineLength();
     }
     public void setDecoderMaxLineLength(int maxLineLength) {
         decoder.setMaxLineLength(maxLineLength);
     }