UsherOu 2015-11-07
基于Vert写的组件,其中在使用过程中碰到若干瓶颈问题,如果每个组件都采用日志方式,查看资源使用情况略微低廉点,所以采用了JMX来进行管理工作。
提到JMX,就必须按照JMX的规范,写一大堆的MBean、MXBean、Agent等,想起来就挺麻烦的,这个时候想起来Spring支持JMX,发现虽然原理差不多使用MXBeanServer.register,但是就是Spring写得东西就是让你配置特别简单。
import org.apache.log4j.Logger; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; import org.springframework.jmx.export.annotation.ManagedResource; import org.springframework.stereotype.Component; import java.util.UUID; import java.util.concurrent.atomic.AtomicInteger; @Aspect @Component @ManagedResource(objectName = "aop-vertx:name=VertxRedisAspect") public class VertxRedisAspect { private static Logger LOG = Logger.getLogger(VertxRedisAspect.class); private AtomicInteger redisPartitions = new AtomicInteger(0); public void sharePartitions(int count) { redisPartitions.set(count); } }
springXML的配置结构:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:ctx="http://www.springframework.org/schema/context" xmlns:int="http://www.springframework.org/schema/integration/jmx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/integration/jmx http://www.springframework.org/schema/integration/jmx/spring-integration-jmx.xsd"> <ctx:mbean-server/> <ctx:mbean-export default-domain="aop-vertx"/> <int:mbean-export default-domain="aop-vertx"/> <bean id="rmiRegistry" class="org.springframework.remoting.rmi.RmiRegistryFactoryBean" p:port="1099"/> <bean id="jmxServerConnector" class="org.springframework.jmx.support.ConnectorServerFactoryBean" depends-on="rmiRegistry" p:objectName="connector:name=rmi" p:serviceUrl="service:jmx:rmi://localhost/jndi/rmi://localhost:1099/aop-vertx"/> </beans>
查看JConsole:
MBean下就有具体的操作和通知
不管你做中间件还是其它服务化的,最好都支持JMX support,不仅仅为了自己,也为了本身系统的健壮性。