How to enable JMXMP in Tomcat?

问题

I've downloaded the JMXMP extensions and installed them in Tomcat's lib directory. Now, how can I make it use them, i.e. let Tomcat accept JMXMP connections?

Oracle's examples show how to do it with code, for which I'd have to write my own listener, which I'd rather keep as a last resort.
Tomcat's JMX listener does not seem to include JMXMP support.

回答1:

Well, I wrote my own JMXMP Tomcat listener. Feel free to use:

package webersg.tomcat;

import java.lang.management.ManagementFactory;

import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;

import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleEvent;
import org.apache.catalina.LifecycleListener;

public class JMXMPLifecycleListener implements LifecycleListener {

    private int port = 5555;

    private JMXConnectorServer cs;

    @Override
    public void lifecycleEvent(LifecycleEvent event) {

        try {

            // START
            if (Lifecycle.START_EVENT == event.getType()) {

                System.out.println("Start JMXMP on port " + port);

                cs = JMXConnectorServerFactory.newJMXConnectorServer(
                        new JMXServiceURL("jmxmp", "0.0.0.0", port),
                        null,
                        ManagementFactory.getPlatformMBeanServer()
                );
                cs.start();

                System.out.println("Started JMXMP");

            }

            // STOP
            else if (Lifecycle.STOP_EVENT == event.getType()) {

                System.out.println("Stop JMXMP");

                cs.stop();
            }

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

}

So after a day of breaking my head on this issue, I'm now able to use VisualVM on my application.

回答2:

I created a mvn project based on Bart von Heukeloms' answer with the needed tomcat-catalina as provided dependency: jmxmp-lifecycle-listener

Just to be plugged in to tomcat's server.xml:
<Listener className="javax.management.remote.extension.JMXMPLifecycleListener" port="5555" />

I don't have enough reputation, otherwise I would have posted this as a comment.

来源：https://stackoverflow.com/questions/11413178/how-to-enable-jmxmp-in-tomcat

标签

java

Tomcat

jmx

jmxmp

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