The jmx of Java

the jmx of JavaThe definition and architecture of JMX is unknown, see Baidu Encyclopedia:

Http://baike.baidu.com/link?url=6QzGGEqphTmpft3ll5mXmDNVRdvLRZhkvGaqAWyO6EliwrHeIwt5bdMd188iMlzylxoxr7gRbtIWn2NQODBLZa

code example:It 's no different than creating a normal bean:

Package com.doctor.java.jmx;/** * @author sdcuike * * @time February 9, 2016 PM 9:47:04 *  * @see http://www.journaldev.com/135 2/what-is-jmx-mbean-jconsole-tutorial * The      interface name must end with Mbean */public interface Systemconfigmbean { Public    void Setthreadcount (int noofthreads);    public int getthreadcount ();    public void Setschemaname (String schemaName);    Public String getschemaname ();    Any method starting with get and set is considered    //as attributes getter and setter methods, so I am    //Usin G do* for operation.    Public String doconfig ();}

Package com.doctor.java.jmx;/** * @author sdcuike * * @time February 9, 2016 PM 9:51:53 */public class Systemconfig implements Sys Temconfigmbean {    private int threadcount;    Private String schemaName;    Public systemconfig (int threadcount, String schemaName) {        this.threadcount = threadcount;        This.schemaname = SchemaName;    }    @Override public    void Setthreadcount (int noofthreads) {        this.threadcount = noofthreads;    }    @Override public    int Getthreadcount () {        return threadcount;    }    @Override public    void Setschemaname (String schemaName) {        this.schemaname = schemaName;    }    @Override public    String getschemaname () {        return schemaName;    }    @Override public    String doconfig () {        return ' No of threads= ' + This.threadcount + "and DB Schema name=" + this. SchemaName;}    }

Then we create a test example:

Package Com.doctor.java.jmx;import Java.lang.management.managementfactory;import Java.util.concurrent.TimeUnit; Import Javax.management.instancealreadyexistsexception;import Javax.management.mbeanregistrationexception;import Javax.management.mbeanserver;import Javax.management.malformedobjectnameexception;import Javax.management.notcompliantmbeanexception;import javax.management.objectname;/** * @author sdcuike * * @time    February 9, 2016 PM 9:56:27 */public class Systemconfigmanagement {private static final int default_no_threads = 10;    private static final String Default_schema = "DEFAULT"; public static void Main (string[] args) throws Malformedobjectnameexception, Instancealreadyexistsexception, Mbeanregistrationexception, Notcompliantmbeanexception, interruptedexception {//Get the Mbean server Mbean        Server mbeanserver = Managementfactory.getplatformmbeanserver (); Register the MBean systemconfig systemconfig = new Systemconfig (default_no_threads, DefauLt_schema);        ObjectName ObjectName = new ObjectName ("Com.doctor.java.jmx:type=systemconfig");        Mbeanserver.registermbean (Systemconfig, objectName);            Do {TimeUnit.SECONDS.sleep (3); System.out.println ("Thread count=" + systemconfig.getthreadcount () + "::: Schema name=" + systemconfig.getschemaname ())        ;    } while (Systemconfig.getthreadcount ()! = 0); }}

Run:when running, we must enable the virtual machine option -dcom.sun.management.jmxremote


Run
Now let's modify the variables with the Java tool Jconsole:

To Modify a variable value:





To perform the modification:

look at the output of the program we run:
whether the modified property is in effect.

The jmx of Java