jmx测试

import java.lang.management.MemoryUsage;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Formatter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.management.MBeanAttributeInfo;
import javax.management.MBeanInfo;
import javax.management.MBeanServerConnection;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

public class JMXTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {

		   String jmxURL = "service:jmx:rmi:///jndi/rmi://127.0.0.1:6901/jmxrmi";//tomcat jmx url
           JMXServiceURL serviceURL = new JMXServiceURL(jmxURL);
           
           Map map = new HashMap();
           String[] credentials = new String[] { "monitorRole" , "QED" };
           map.put("jmx.remote.credentials", credentials);
           JMXConnector connector = JMXConnectorFactory.connect(serviceURL, map);
           MBeanServerConnection  mbsc = connector.getMBeanServerConnection();
           
           //端口最好是动态取得
           ObjectName threadObjName = new ObjectName("Catalina:type=ThreadPool,name=http-80");
           MBeanInfo mbInfo = mbsc.getMBeanInfo(threadObjName);
           
           String attrName = "currentThreadCount";//tomcat的线程数对应的属性值
           MBeanAttributeInfo[] mbAttributes = mbInfo.getAttributes();
           System.out.println("currentThreadCount:"+mbsc.getAttribute(threadObjName, attrName));
           
           //heap
           for(int j=0;j <mbsc.getDomains().length;j++){ 
        	   System.out.println("###########"+mbsc.getDomains()[j]); 
           } 
           Set MBeanset = mbsc.queryMBeans(null, null);
           System.out.println("MBeanset.size() : " + MBeanset.size());
           Iterator MBeansetIterator = MBeanset.iterator();
           while (MBeansetIterator.hasNext()) { 
        	   ObjectInstance objectInstance = (ObjectInstance)MBeansetIterator.next();
        	   ObjectName objectName = objectInstance.getObjectName();
        	   String canonicalName = objectName.getCanonicalName();
        	   System.out.println("canonicalName : " + canonicalName); 
        	   if (canonicalName.equals("Catalina:host=localhost,type=Cluster"))      {  
        		   // Get details of cluster MBeans
        		   System.out.println("Cluster MBeans Details:");
        		   System.out.println("========================================="); 
        		   //getMBeansDetails(canonicalName);
        	   	  String canonicalKeyPropList = objectName.getCanonicalKeyPropertyListString();
        	  }
           }
           //------------------------- system ----------------------
           ObjectName runtimeObjName = new ObjectName("java.lang:type=Runtime");
           System.out.println("厂商:"+ (String)mbsc.getAttribute(runtimeObjName, "VmVendor"));
           System.out.println("程序:"+ (String)mbsc.getAttribute(runtimeObjName, "VmName"));
           System.out.println("版本:"+ (String)mbsc.getAttribute(runtimeObjName, "VmVersion"));
           Date starttime=new Date((Long)mbsc.getAttribute(runtimeObjName, "StartTime"));
           SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
           System.out.println("启动时间:"+df.format(starttime));
           
           Long timespan=(Long)mbsc.getAttribute(runtimeObjName, "Uptime");
           System.out.println("连续工作时间:"+JMXTest.formatTimeSpan(timespan));
           //------------------------ JVM -------------------------
           //堆使用率
           ObjectName heapObjName = new ObjectName("java.lang:type=Memory");
           MemoryUsage heapMemoryUsage =  MemoryUsage.from((CompositeDataSupport)mbsc.getAttribute(heapObjName, "HeapMemoryUsage"));
           long maxMemory = heapMemoryUsage.getMax();//堆最大
           long commitMemory = heapMemoryUsage.getCommitted();//堆当前分配
           long usedMemory = heapMemoryUsage.getUsed();
           System.out.println("heap:"+(double)usedMemory*100/commitMemory+"%");//堆使用率
           
           MemoryUsage nonheapMemoryUsage =  MemoryUsage.from((CompositeDataSupport)mbsc.getAttribute(heapObjName, "NonHeapMemoryUsage"));           
           long noncommitMemory = nonheapMemoryUsage.getCommitted();
           long nonusedMemory = heapMemoryUsage.getUsed();
           System.out.println("nonheap:"+(double)nonusedMemory*100/noncommitMemory+"%");
           
           ObjectName permObjName = new ObjectName("java.lang:type=MemoryPool,name=Perm Gen");
           MemoryUsage permGenUsage =  MemoryUsage.from((CompositeDataSupport)mbsc.getAttribute(permObjName, "Usage"));           
           long committed = permGenUsage.getCommitted();//持久堆大小
           long used = heapMemoryUsage.getUsed();//
           System.out.println("perm gen:"+(double)used*100/committed+"%");//持久堆使用率
           
           //-------------------- Session --------------- 
           ObjectName managerObjName = new ObjectName("Catalina:type=Manager,*");
           Set<ObjectName> s=mbsc.queryNames(managerObjName, null);
           for (ObjectName obj:s){
        	   System.out.println("应用名:"+obj.getKeyProperty("path"));
        	   ObjectName objname=new ObjectName(obj.getCanonicalName());
        	   System.out.println("最大会话数:"+ mbsc.getAttribute( objname, "maxActiveSessions"));
        	   System.out.println("会话数:"+ mbsc.getAttribute( objname, "activeSessions"));
        	   System.out.println("活动会话数:"+ mbsc.getAttribute( objname, "sessionCounter"));
           }
           
           //----------------- Thread Pool ----------------
           ObjectName threadpoolObjName = new ObjectName("Catalina:type=ThreadPool,*");
           Set<ObjectName> s2=mbsc.queryNames(threadpoolObjName, null);
           for (ObjectName obj:s2){
        	   System.out.println("端口名:"+obj.getKeyProperty("name"));
        	   ObjectName objname=new ObjectName(obj.getCanonicalName());
        	   System.out.println("最大线程数:"+ mbsc.getAttribute( objname, "maxThreads"));
        	   System.out.println("当前线程数:"+ mbsc.getAttribute( objname, "currentThreadCount"));
        	   System.out.println("繁忙线程数:"+ mbsc.getAttribute( objname, "currentThreadsBusy"));
           }
        	   
		} catch (Exception e) {
            e.printStackTrace();
        }
	}

	public static String formatTimeSpan(long span){
		long minseconds = span % 1000;
		
		span = span /1000;
		long seconds = span % 60;
		
		span = span / 60;
		long mins = span % 60;
		
		span = span / 60;
		long hours = span % 24;

		span = span / 24;
		long days = span;
		return (new Formatter()).format("%1$d天 %2$02d:%3$02d:%4$02d.%5$03d", days,hours,mins,seconds,minseconds).toString();
	}
}