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  • mina与spring集成(翻译)

    源地址:http://mina.apache.org/mina-project/userguide/ch17-spring-integration/ch17-spring-integration.html

    一个mina应用主要包括一下方面:

    • One Handler
    • Two Filter - Logging Filter and a ProtocolCodec Filter
    • NioDatagram Socket

    一个mina 服务端的实例程序如下:

    public void initialize() throws IOException {
    
        // Create an Acceptor
        NioDatagramAcceptor acceptor = new NioDatagramAcceptor();
    
        // Add Handler
        acceptor.setHandler(new ServerHandler());
    
        acceptor.getFilterChain().addLast("logging",
                    new LoggingFilter());
        acceptor.getFilterChain().addLast("codec",
                    new ProtocolCodecFilter(new SNMPCodecFactory()));
    
        // Create Session Configuration
        DatagramSessionConfig dcfg = acceptor.getSessionConfig();
            dcfg.setReuseAddress(true);
            logger.debug("Starting Server......");
            // Bind and be ready to listen
            acceptor.bind(new InetSocketAddress(DEFAULT_PORT));
            logger.debug("Server listening on "+DEFAULT_PORT);
    }

    继承过程如下:

    1.设置IO handler。在spring context文件中设置IO handler。

    <!-- The IoHandler implementation -->
    <bean id="trapHandler" class="com.ashishpaliwal.udp.mina.server.ServerHandler">

    2.创建过滤器链。

    <bean id="snmpCodecFilter" class="org.apache.mina.filter.codec.ProtocolCodecFilter">
      <constructor-arg>
        <bean class="com.ashishpaliwal.udp.mina.snmp.SNMPCodecFactory" />
      </constructor-arg>
    </bean>
    
    <bean id="loggingFilter" class="org.apache.mina.filter.logging.LoggingFilter" />
    
    <!-- The filter chain. -->
    <bean id="filterChainBuilder" class="org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder">
      <property name="filters">
        <map>
          <entry key="loggingFilter" value-ref="loggingFilter"/>
          <entry key="codecFilter" value-ref="snmpCodecFilter"/>
        </map>
      </property>
    </bean>

    3.创建socket并设置socket参数

    <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer">
        <property name="customEditors">
          <map>
            <entry key="java.net.SocketAddress">
              <bean class="org.apache.mina.integration.beans.InetSocketAddressEditor" />
            </entry>
          </map>
        </property>
    </bean>
    
    <!-- The IoAcceptor which binds to port 161 -->
    <bean id="ioAcceptor" class="org.apache.mina.transport.socket.nio.NioDatagramAcceptor" init-method="bind" destroy-method="unbind">
      <property name="defaultLocalAddress" value=":161" />
      <property name="handler" ref="trapHandler" />
      <property name="filterChainBuilder" ref="filterChainBuilder" />
    </bean>


    测试程序

    public void initializeViaSpring() throws Exception {
        new ClassPathXmlApplicationContext("trapReceiverContext.xml");
    }
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  • 原文地址:https://www.cnblogs.com/davidwang456/p/2999283.html
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