Turns out you can't. You have to subclass MBeanExporter if you want to achieve this.
How do I get the beans that spring has registered with jmx?
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03-06-2022 - |
문제
is there a way to get the list of bean instances that spring has registered with the mbeanserver?
I saw that you can register a MBeanExporterListener on the MBeanExporter, but that only tells me the ObjectName that a bean was registered with. Can I use that ObjectName somewhere to get the instance of the Object that was registered?
I see that one option could be to subclass MBeanExporter, but I really don't want to do that unless I have to.
Thanks.
해결책
다른 팁
I had tested a sample code as follows
// Get the Platform MBean Server
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
// Construct the ObjectName for the MBean we will register
ObjectName name = new ObjectName("com.example.mbeans:type=Hello");
// Create the Hello World MBean
Hello mbean = new Hello();
// Register the Hello World MBean
mbs.registerMBean(mbean, name);
Set<ObjectInstance> instances = mbs.queryMBeans(name, null);
ObjectInstance instance = (ObjectInstance) instances.toArray()[0];
System.out.println("Class Name:t" + instance.getClassName());
System.out.println("Object Name:t" + instance.getObjectName());
// Wait forever
System.out.println("Waiting forever...");
Thread.sleep(Long.MAX_VALUE);
Of course there is interface HelloMBean
and
class Hello extends NotificationBroadcasterSupport implements HelloMBean
The output is
Class Name:tcom.example.mbeans.Hello
Object Name:tcom.example.mbeans:type=Hello
Waiting forever...
Hope this helps!
Update :
public class ObjectInstance extends Object implements Serializable
. ObjectInstance represent the object name of an MBean and its class name. We cannot retrieve the reference to the object itself.
I guess the only way to operate on the registered mbeans is to use JMS/RMI connector(or HTML adaptors) to get connection of mbaean server, create mbaen proxy using JMX.newMBeanProxy corresponding to registered mbean and invoke methods on that.