JMX连接Tomcat的JMX测试类

首先是为了使tomcat支持JMX，必须在tomcat的启动项里加上以下几行
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=9999
-Dcom.sun.management.jmxremote.ssl="false"
-Dcom.sun.management.jmxremote.authenticate="false"
意思大体上很明白，端口使用的9999，没有使用ssl，没有进行权限认证

下面是测试类

package com.rmi;

import java.lang.management.ManagementFactory;
import java.lang.management.MemoryManagerMXBean;
import java.util.Set;

import javax.management.MBeanAttributeInfo;
import javax.management.MBeanInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanParameterInfo;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

/**
 * 远程链接Tomcat的MBeanServer
 * @author Administrator
 *
 */
public class TomcatClient {

	/**
	 * @param args
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception {
		 JMXServiceURL address =
		      new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/jmxrmi");
		    JMXConnector connector = JMXConnectorFactory.connect(address, null);
		    // it is a trivial matter to get a reference for the MBean server
		    // connection to the remote agent
		    MBeanServerConnection mbsc = connector.getMBeanServerConnection();


		    System.out.println("MBean count="+mbsc.getMBeanCount());

		    connector.connect();

//		    for (ObjectInstance object : mbsc.queryMBeans(null, null)) {//服务器上的所有MBean
//	            System.out.println("object.getObjectName="+object.getObjectName());
//	        }
		    ObjectName on=new ObjectName("Catalina:type=ThreadPool,name=http-8080");
			MBeanInfo mbeanInfo=mbsc.getMBeanInfo(on);
			MBeanOperationInfo[] operationInfo=mbeanInfo.getOperations();
			if(operationInfo!=null){//获取方法的一些东西
				for(MBeanOperationInfo opration:operationInfo){
					System.out.println("MBeanOperationInfo="+opration.getName());
					MBeanParameterInfo[] paramsInfo=opration.getSignature();
					for(MBeanParameterInfo param:paramsInfo){
						System.out.println("param="+param.getName());
//						param.getType();
//						param.getName();
					}
//					mbsc.invoke(on, opration.getName(), params, opration.getSignature());
				}
			}

			MBeanAttributeInfo[] attributeInfo=mbeanInfo.getAttributes();
			if(attributeInfo!=null){//获取属性的一些东西
				for(MBeanAttributeInfo attr:attributeInfo){
					System.out.println("MBeanAttributeInfo="+attr.getName()+";type="+attr.getType());
					System.out.println(mbsc.getAttribute(on, attr.getName()));//获取属性值
				}
			}

		    // Get the names of all the Memory Manager MXBeans in the server
	        Set srvMemMgrNames = mbsc.queryNames(new ObjectName(
	            ManagementFactory.MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE + ",*"), null);

	        // Get a MXBean Proxy for each name returned
	        for (Object memMgrName : srvMemMgrNames){
	            // Cast Object to an ObjectName
	            ObjectName memMgr = (ObjectName) memMgrName;

	            // Call newPlatformMXBeanProxy with the complete object name
	            // for the specific MXBean
	            MemoryManagerMXBean memMgrBean =
	                ManagementFactory.newPlatformMXBeanProxy(
	                		mbsc, memMgr.toString(), MemoryManagerMXBean.class);

	            // memMgrBean is a proxy to the remote MXBean. We can use it
	            // just as if it was a reference to a local MXBean.
	            System.out.println("Memory Manager Name = " + memMgrBean.getName());
	        }

	}

	public static String toCapital(String str){
		char[] cs=str.toCharArray();
		char c=(char)(str.charAt(0)-32);
		cs[0]=c;
//		System.out.println(String.valueOf(cs));
		return String.valueOf(cs);
	}
}