JMX连接Tomcat的JMX测试类

ab520025520025

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);
}
}