JMX监视EhCache服务器MBean

Question

I have a Tomcat instance where I have deployed the ehcache-server. Now I make rest requests to put/get elements from my standalone Java class. Everything works as expected.

Now I would like to monitor the Cache. I understand ehcache-server provides the mbeans of multiple classes. But I can barely find any information on how to register these mbeans.

When I start the jconsole, I can see the Tomcat instance and connect to it. But I do not see any classes (net.sf.ehache.*) of ehcache-server.

The documentation says I could use function registerMBeans to register the mbeans. But how do I call a method in a web application from my standalone Java application?

I am afraid I am completely misunderstanding this. I could use some pointers on how to register the mbeans and do the monitoring.

Thanks in advance.

Answer 1

It is actually pretty simple. Add this below config file in your web project

@Configuration
@EnableCaching
public class SpringCachePocConfig implements CachingConfigurer {

    net.sf.ehcache.CacheManager newCacheManager;

    @Bean(destroyMethod = "shutdown")
    public net.sf.ehcache.CacheManager ehCacheManager() {
        //Construct you cache here.

        net.sf.ehcache.config.Configuration config = new net.sf.ehcache.config.Configuration();
        config.addCache(<Your cache>);

        this.newCacheManager = new net.sf.ehcache.CacheManager(config);
        return newCacheManager;
    }


    @Bean
    public ManagementService managementService() {
        return new ManagementService(ehCacheManager(), mbeanServer(), true, true, true, true);

    }


    @Bean
    @Override
    public CacheManager cacheManager() {
        return new EhCacheCacheManager(ehCacheManager());
    }


    @Bean
    public MBeanServer mbeanServer() {
        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
        return mBeanServer;   
    }

    @PostConstruct
    public void init() {
        ManagementService.registerMBeans(ehCacheManager(), mbeanServer(), true, true, true, true);
    }


}

The init() function will register your MBeans. Dont forget to add @PostConstruct annotation above your init() method