Java Management Extension JMX's Helloword Chapter

JMX (Java Management Extensions, or Java Management Extensions) is a framework for embedding management functions for applications, devices, systems, and so on. JMX can flexibly develop seamlessly integrated systems, network, and service management applications across a range of heterogeneous operating system platforms, system architectures, and network transport protocols.

• The interface class used to publish the service Itesthellomxbean.java

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Package org.suren.littlebird;/** * @author Suren * Interface name must end with Mxbean */public interface itesthellomxbean{public void Hello () ;p ublic String getName ();}

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• Interface implementation class for publishing a service Testhello.java

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Package org.suren.littlebird;/** * @author Suren */public class Testhello implements itesthellomxbean{@Overridepublic void Hello () {System.out.println ("impl hello");} @Overridepublic String GetName () {return ' test get name ';}}

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• Service-Side test class Jmxservertest.java

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Package Org.suren.littlebird;import Java.lang.management.managementfactory;import Java.rmi.registry.locateregistry;import Java.util.hashmap;import Java.util.map;import Javax.management.mbeanserver;import Javax.management.objectname;import Javax.management.remote.jmxconnectorserver;import Javax.management.remote.jmxconnectorserverfactory;import Javax.management.remote.jmxserviceurl;import javax.naming.context;/** * @author Suren * */public Class Jmxservertest {    private static final String domain    = "Suren";    //With Jconsole, you'll get more than one node in the MBean tab defined by the bread name     private static final String package = " Org.suren.littlebird:type= ";    public static void Main (String args[]) throws exception    {        locateregistry.createregistry (5006);//ports for remote connections          mbeanserver Server = Managementfactory.getplatformmbeanserver ();  &nbSp      //Registering a callable Bean object         testhello Testhello = new Testhello () ;        objectname testhelloobjname = new ObjectName (package + "Testhello");         server.registermbean (Testhello, testhelloobjname);        //register a Bean object that is available for remote connection         jmxserviceurl serverurl = new Jmxserviceurl ("Service: jmx:rmi:///jndi/rmi://127.0.0.1:5006/"+domain);        map<string, String> env = new hashmap<string, string> ();        env.put (context.initial_context_factory , "Com.sun.jndi.rmi.registry.RegistryContextFactory");        jmxconnectorserver Connectorserver = Jmxconnectorserverfactory.newjmxconnectorserver (serverurl,env, server);         server.registermbean (Connectorserver, new ObjectName (Package + "JMXCOnnectorserver "));        //Start service, this start action can also be jconsole to invoke          connectorserver.start ();   }}

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• The client class used to test the service connection Jmxclienttest.java

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Package Org.suren.littlebird;import Java.util.arrays;import Java.util.hashmap;import java.util.map;import Java.util.set;import Javax.management.mbeaninfo;import Javax.management.mbeanserverconnection;import Javax.management.objectinstance;import Javax.management.objectname;import Javax.management.remote.JMXConnector; Import Javax.management.remote.jmxconnectorfactory;import javax.management.remote.jmxserviceurl;/** * @ Author Suren * */public class jmxclienttest{    /**     * @param args      */    public static void Main (string[] args) throws exception    { & nbsp      string hostName = "127.0.0.1"; Publish the address of the JMX service         int portnum = 5006; Port of the Publishing Service         jmxserviceurl u = new Jmxserviceurl ("service:jmx:rmi:///jndi/rmi://"                 + hostName + ":" +Portnum + "/suren");        map<string, object> auth = new hashmap<string, Object > ();        //Authentication Required user Information         auth.put ( Jmxconnector.credentials, new string[]{"Controlrole", "123"});        jmxconnector Jmxconnector = Jmxconnectorfactory.connect (U, auth);        mbeanserverconnection Connection = Jmxconnector.getmbeanserverconnection ();        set<objectinstance > beans = Connection.querymbeans (null, NULL);        for (objectinstance objinstance: Beans)         {            objectname Mbeanname = Objinstance.getobjectname ();            mbeaninfo mbeaninfo = Connection.getmbeaninfo (mbeanname);           system.out.println (Arrays.tostring (Mbeaninfo.getoperations ()));        }     }}

[/codesyntax] Tomcat posted to me might be jmxrmi, the URI to access is Service:jmx:rmi:///jndi/rmi://localhost:5006/jmxrmi

• Java Authentication Configuration

Locate the configuration file: $JAVA _home\jre\lib\management\jmxremote.password Add the following configuration: Suren Suren Then modify the Jmxremote.password permissions for other users without permissions, chmod Jmxremote.password Find the profile: $JAVA _home\jre\lib\management\ Jmxremote.access Suren readwrite \ Create javax.management.monitor.*,javax.management.timer.* \ Unregister

• Start remote Service

If you want to access by remote (IP address + port), you need to add the following parameters at run time (how to add parameters can be found in this site):-dcom.sun.management.jmxremote.port=5006- Dcom.sun.management.jmxremote.ssl=false-dcom.sun.management.jmxremote.authenticate=true- djava.rmi.server.hostname=10.0.32.35

Java Management Extension JMX's Helloword Chapter