JMX remote server system monitoring II

Next, we provide another implementation method:

First look at a class diagram:

JDK implements nine built-in mbeans that can monitor all the information of virtual machines:

 

ManagementFactoryThe factory class can get the corresponding MBean instance through ObjectName, and naturally the desired data can be obtained.

2 The code is as follows:

Package pyc. jvm. monitor; import java. io. IOException; import java. lang. management. classLoadingMXBean; import java. lang. management. managementFactory; import java. lang. management. memoryMXBean; import java. lang. management. memoryUsage; import java. lang. management. operatingSystemMXBean; import java. lang. management. threadMXBean; import java.net. malformedURLException; import java. util. timer; import java. util. timerTa Sk; import java. util. concurrent. timeUnit; import javax. management. attributeNotFoundException; import javax. management. instanceNotFoundException; import javax. management. MBeanException; import javax. management. MBeanServerConnection; import javax. management. reflectionException; import javax. management. remote. JMXConnector; import javax. management. remote. JMXConnectorFactory; import javax. management. remote. JMXS ErviceURL;/*** creation Time: 11:06:34 ** @ author zhangtianyou * @ version 2.2 */public class JMXTest2 {private final static String SERVICE_1 = "service: jmx: rmi: /// jndi/rmi: // 192.168.85.54: 8787/jmxrmi ";/*** @ param args */public static void main (String [] args) {// call Timer timer once every 10 seconds = new Timer (); timer. schedule (new JMXTest2 (). new MonitorTask (SERVICE_1), 0, 10000);} private class MonitorTask exte Nds TimerTask {private String service; public MonitorTask (String service) {this. service = service ;}@ Overridepublic void run () {JMXmonitor (service) ;}} private static void JMXmonitor (String service) {jmxconnejmxconnector = null; try {JMXServiceURL ServiceURL = new JMXServiceURL (service); jmxConnector = JMXConnectorFactory. connect (ServiceURL); // MBean server (whether local or remote) communication method MBeanServerConnectionMBe AnServerConnection mBeanServerConnection = jmxConnector. getMBeanServerConnection (); // get MemoryMXBeanSystem. out. println ("\ nMemory"); MemoryMXBean memoryMXBean = ManagementFactory. newPlatformMXBeanProxy (mBeanServerConnection, ManagementFactory. MEMORY_MXBEAN_NAME, MemoryMXBean. class); MemoryUsage heapMemoryUsage = memoryMXBean. getHeapMemoryUsage (); System. out. println ("heapMemoryUsage:"); System. out. printl N ("committed =" + convertKB (heapMemoryUsage. getCommitted (); System. out. println ("init =" + convertKB (heapMemoryUsage. getInit (); System. out. println ("max =" + convertKB (heapMemoryUsage. getMax (); System. out. println ("used =" + convertKB (heapMemoryUsage. getUsed (); MemoryUsage nonHeapMemoryUsage = memoryMXBean. getNonHeapMemoryUsage (); System. out. println ("\ nnonHeapMemoryUsage:"); System. out. println ( "Committed =" + convertKB (nonHeapMemoryUsage. getCommitted (); System. out. println ("init =" + convertKB (nonHeapMemoryUsage. getInit (); System. out. println ("max =" + convertKB (nonHeapMemoryUsage. getMax (); System. out. println ("used =" + convertKB (nonHeapMemoryUsage. getUsed (); // Obtain ThreadMXBeanSystem. out. println ("\ nThread"); ThreadMXBean threadMXBean = ManagementFactory. newPlatformMXBeanProxy (mBeanServ ErConnection, ManagementFactory. THREAD_MXBEAN_NAME, ThreadMXBean. class); System. out. println ("ThreadCount =" + threadMXBean. getThreadCount (); System. out. println ("DaemonThreadCount =" + threadMXBean. getDaemonThreadCount (); System. out. println ("PeakThreadCount =" + threadMXBean. getPeakThreadCount (); System. out. println ("CurrentThreadCpuTime =" + threadMXBean. getCurrentThreadCpuTime (); System. out. println ( "CurrentThreadUserTime =" + threadMXBean. getCurrentThreadUserTime (); System. out. println ("\ nClassLoading"); ClassLoadingMXBean classLoadingMXBean = ManagementFactory. newPlatformMXBeanProxy (mBeanServerConnection, ManagementFactory. CLASS_LOADING_MXBEAN_NAME, ClassLoadingMXBean. class); // The number of classes currently loaded to the Java virtual machine System. out. println ("LoadedClassCount =" + classLoadingMXBean. getLoadedClassCount (); // The Java virtual machine starts to execute Total number of classes that have been loaded before. System. out. println ("TotalLoadedClassCount =" + classLoadingMXBean. getTotalLoadedClassCount (); // The total number of classes that have been uninstalled since the Java virtual machine started running. System. out. println ("UnloadedClassCount =" + classLoadingMXBean. getUnloadedClassCount (); System. out. println ("\ nCpu"); OperatingSystemMXBean operatingSystemMXBean = ManagementFactory. newPlatformMXBeanProxy (mBeanServerConnection, ManagementFactory. OPERATING_SYSTEM_MXBEAN_NAME, OperatingSystemMXBean. class); System. out. println ("AvailableProcessors =" + operatingSystemMXBean. getAvailableProcessors (); double Ratio = 0.0; long start = System. currentTimeMillis (); long startC; try {startC = (long) mBeanServerConnection. getAttribute (operatingSystemMXBean. getObjectName (), "ProcessCpuTime"); try {TimeUnit. SECONDS. sleep (5);} catch (InterruptedException e) {e. printStackTrace ();} long end = System. currentTimeMillis (); long endC = (long) mBeanServerConnection. getAttribute (operatingSystemMXBean. getObjectName (), "Proce SsCpuTime "); int availableProcessors = operatingSystemMXBean. getAvailableProcessors (); ratio = (endC-startC)/1000000.0/(end-start)/availableProcessors;} catch (AttributeNotFoundException e1) {// TODO Auto-generated catch blocke1.printStackTrace ();} catch (InstanceNotFoundException e1) {// TODO Auto-generated catch blocke1.printStackTrace ();} catch (MBeanException e1) {// TODO Auto-generated c Atch blocke1.printStackTrace ();} catch (ReflectionException e1) {// TODO Auto-generated catch blocke1.printStackTrace ();} System. out. println ("CUP usage" + ratio * 100 + "%");} catch (MalformedURLException e) {e. printStackTrace (); System. out. println ("invalid ServiceURL");} catch (IOException e) {e. printStackTrace ();} finally {try {if (jmxConnector! = Null) {jmxConnector. close () ;}} catch (IOException e) {e. printStackTrace () ;}} private static String convertKB (long src) {if (src <= 0L) {return "0KB" ;}return (double) src/1024 + "KB ";}}

3. The running effect is as follows:

MemoryheapMemoryUsage: committed = 59392.0 KBinit = 63667.75 KBmax = 906752.0 KBused = 21645.8046875 KBnonHeapMemoryUsage: committed = 30144.0 KBinit = 24000.0 KBmax = 133120.0 KBused = 17608.9921875 KBThreadThreadCount = 53 DaemonThreadCount = 52 PeakThreadCount = 56 CurrentThreadCpuTime = 0 CurrentThreadUserTime = 0 bytes = 2526 bytes = 2581 UnloadedClassCount = 55 bytes = 4CUP usage 0.07790701158609668%

This method conforms to the jconsole curve data, which is more common and avoids hard coding.

JMX remote server system monitoring II