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Using JSR-160 Connectors

For remote access, Spring JMX module offers two FactoryBean implementations inside the org.springframework.jmx.support package for creating both server- and client-side connectors.

Server-side Connectors

To have Spring JMX create, start, and expose a JSR-160 JMXConnectorServer, you can use the following configuration:

<bean id="serverConnector" class="org.springframework.jmx.support.ConnectorServerFactoryBean"/>

By default, ConnectorServerFactoryBean creates a JMXConnectorServer bound to service:jmx:jmxmp://localhost:9875. The serverConnector bean thus exposes the local MBeanServer to clients through the JMXMP protocol on localhost, port 9875. Note that the JMXMP protocol is marked as optional by the JSR 160 specification. Currently, the main open-source JMX implementation, MX4J, and the one provided with the JDK do not support JMXMP.

To specify another URL and register the JMXConnectorServer itself with the MBeanServer, you can use the serviceUrl and ObjectName properties, respectively, as the following example shows:

<bean id="serverConnector"
		class="org.springframework.jmx.support.ConnectorServerFactoryBean">
	<property name="objectName" value="connector:name=rmi"/>
	<property name="serviceUrl"
			value="service:jmx:rmi://localhost/jndi/rmi://localhost:1099/myconnector"/>
</bean>

If the ObjectName property is set, Spring automatically registers your connector with the MBeanServer under that ObjectName. The following example shows the full set of parameters that you can pass to the ConnectorServerFactoryBean when creating a JMXConnector:

<bean id="serverConnector"
		class="org.springframework.jmx.support.ConnectorServerFactoryBean">
	<property name="objectName" value="connector:name=iiop"/>
	<property name="serviceUrl"
		value="service:jmx:iiop://localhost/jndi/iiop://localhost:900/myconnector"/>
	<property name="threaded" value="true"/>
	<property name="daemon" value="true"/>
	<property name="environment">
		<map>
			<entry key="someKey" value="someValue"/>
		</map>
	</property>
</bean>

Note that, when you use a RMI-based connector, you need the lookup service (tnameserv or rmiregistry) to be started in order for the name registration to complete.

Client-side Connectors

To create an MBeanServerConnection to a remote JSR-160-enabled MBeanServer, you can use the MBeanServerConnectionFactoryBean, as the following example shows:

<bean id="clientConnector" class="org.springframework.jmx.support.MBeanServerConnectionFactoryBean">
	<property name="serviceUrl" value="service:jmx:rmi://localhost/jndi/rmi://localhost:1099/jmxrmi"/>
</bean>

JMX over Hessian or SOAP

JSR-160 permits extensions to the way in which communication is done between the client and the server. The examples shown in the preceding sections use the mandatory RMI-based implementation required by the JSR-160 specification (IIOP and JRMP) and the (optional) JMXMP. By using other providers or JMX implementations (such as MX4J) you can take advantage of protocols such as SOAP or Hessian over simple HTTP or SSL and others, as the following example shows:

<bean id="serverConnector" class="org.springframework.jmx.support.ConnectorServerFactoryBean">
	<property name="objectName" value="connector:name=burlap"/>
	<property name="serviceUrl" value="service:jmx:burlap://localhost:9874"/>
</bean>

In the preceding example, we used MX4J 3.0.0. See the official MX4J documentation for more information.