apache mina 学习（十四）-----与spring整合

muri

　　mina与spring整合的主要问题就是mina中一些bean的配置需要spring的ioc，我们首先看一个简单的服务端代码：
　　public void initialize() throws IOException {// Create an AcceptorNioDatagramAcceptor acceptor = new NioDatagramAcceptor();// Add Handleracceptor.setHandler(new ServerHandler());acceptor.getFilterChain().addLast("logging",new LoggingFilter());acceptor.getFilterChain().addLast("codec",new ProtocolCodecFilter(new SNMPCodecFactory()));// Create Session ConfigurationDatagramSessionConfig dcfg = acceptor.getSessionConfig();dcfg.setReuseAddress(true);logger.debug("Starting Server......");// Bind and be ready to listenacceptor.bind(new InetSocketAddress(DEFAULT_PORT));logger.debug("Server listening on "+DEFAULT_PORT);}整合步骤一般有三步：1、设置io handler 2、创建filters 3、创建socket
　　spring中设置iohandler：
　　<!-- The IoHandler implementation --><bean id="trapHandler" class="com.ashishpaliwal.udp.mina.server.ServerHandler" />Filters：
　　<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>
我们用的是基于构造方法的注入方式，最后我们注入socket：
　　<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>这样我们可以在spring容器中获得mina的服务器实例了：
　　public void initializeViaSpring() throws Exception {new ClassPathXmlApplicationContext("trapReceiverContext.xml");}