java-jmx

最近接触jmx，查了很多资料，资料是很全，下面总结了本地操作jmx,远程发布、远程访问JMX相关示例,希望能帮到你。

转贴请表明原地址：http://skyteam.iteye.com/blog/1893302

JDK中对每个方法介绍很是详细，所以查看jdk 文档会有很大的惊喜。
在线JDK连接：http://www.ostools.net/apidocs/apidoc?api=jdk-zh

----------------------本地操作JMX----------------------------------
获取本地MBeanServerConnection

private MBeanServerConnection getServerConnection() throws IOException,
			NotBoundException {
		Registry registry = LocateRegistry.getRegistry();
		RMIServer stub = null;

		JMXConnector jmxc = null;
		if (stub == null) {
//registry_name 注册访问连接的名字如service:jmx:rmi:///jndi/rmi://127.0.0.1:8888/jcfJmxConnector
		stub = (RMIServer) registry.lookup(REGISTRY_NAME);//jcfJmxConnector
		}
		jmxc = new RMIConnector(stub, null);
		jmxc.connect();
		return jmxc.getMBeanServerConnection();
	}

获得MBean：

private Set<ObjectInstance> findServer()
			throws MalformedObjectNameException, NullPointerException {
		MBeanServer server = MBeanServerFactory.findMBeanServer(null).get(0);
		return server.queryMBeans(new ObjectName([color=red]
				"jcf.mbeans:name=*,type=NewServerController"[/color]), null);
	}

****需要注意的是queryMBeans支持模糊查询

循环调用

Set<ObjectInstance> mbeans = findServer();
for (Iterator<ObjectInstance> it = mbeans.iterator();it.hasNext();) {
		ObjectInstance oi = it.next();
		mbsc.invoke(oi.getObjectName(), "start", null, null);			
}

获取当前环境（karaf）JMX，将自己ObjectName注册进去

private void startJmxConnServer() throws Exception {
		try {
			ArrayList<MBeanServer> servers = MBeanServerFactory
					.findMBeanServer(null);
			System.out.println(servers.size());
			MBeanServer mbs = (MBeanServer) servers.get(0);
			ObjectName objName = new ObjectName(
					"ManagementJmxServer:name=Management");
			mbs.registerMBean(new Management(), objName);

		} catch (MalformedObjectNameException e) {
			throw new Exception(e);
		} catch (InstanceAlreadyExistsException e) {
			throw new Exception(e);
		} catch (MBeanRegistrationException e) {
			throw new Exception(e);
		} catch (NotCompliantMBeanException e) {
			throw new Exception(e);
		} catch (Exception e) {
			throw new Exception(e);
		}
	}

------------------------------远程JMX------------------------------------
代码注册：

MBeanServer server = MBeanServerFactory.createMBeanServer();
server.registerMBean(new Management(), new ObjectName("com.travelsky.jcf.management:type=Management"));
JMXServiceURL url = new JMXServiceURL("rmi", "127.0.0.1", 9589,
			"/jndi/rmi://localhost:" + 1099 + "/management");
// 调用方法，初始化
Map<String, String[]> environment = new HashMap<String, String[]>();
		String[] credentials = new String[] { "karaf", "karaf" };
		environment.put("jmx.remote.credentials", credentials);
JMXConnectorServer jmxServer = JMXConnectorServerFactory
					.newJMXConnectorServer(url, environment , server);
System.out.println(url);
// 在RMI上注册
LocateRegistry.createRegistry(1099);
jmxServer.start();
----
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
// Construct the ObjectName for the MBean we will register
ObjectName name = new ObjectName("com.travelsky.jcf.control:type=NewServerController");
// Create the Hello World MBean
NewServerController mbean = new NewServerController();
// Register the Hello World MBean
mbs.registerMBean(mbean, name);
-----

spring 文件注册

<bean id="jcfServerMBean" class="com.travelsky.jcf.NewServerController" init-method="init"></bean>

	<!-- <context:component-scan base-package="com.travelsky.jcf" /> -->

	<context:mbean-export default-domain="jcf.mbeans" />

	<bean id="mbeanServer" class="org.springframework.jmx.support.MBeanServerFactoryBean">
	    <property name="locateExistingServerIfPossible" value="true"/>
	</bean>

	<bean id="rmiRegistry" class="org.springframework.remoting.rmi.RmiRegistryFactoryBean" destroy-method="destroy">
		<property name="port" value="${jcf.jmx.rmi.port}" />
	</bean>

	<bean id="jcfJmxServer" class="org.springframework.jmx.support.ConnectorServerFactoryBean" depends-on="rmiRegistry">
		<property name="objectName" value="connector:name=rmi" />
		<property name="serviceUrl" value="service:jmx:rmi://127.0.0.1/jndi/rmi://127.0.0.1:${jcf.jmx.rmi.port}/jcfJmxConnector" />
		<property name="server" ref="mbeanServer" />
		<property name="environment">
			<!-- the following is only valid when the sun jmx implementation is used -->
			<!-- <map>
				<entry key="jmx.remote.x.password.file" value="${user.home}/.secure/jmxremote.password" />
				<entry key="jmx.remote.x.access.file" value="${user.home}/.secure/jmxremote.access" />
			</map> -->
			<props>
			    <prop key="java.naming.security.principal">${jcf.jmx.rmi.username}</prop>
				<prop key="java.naming.security.credentials">${jcf.jmx.rmi.password}</prop>
			</props>
		</property>
	</bean>

	<bean id="clientConnector" class="org.springframework.jmx.support.MBeanServerConnectionFactoryBean" depends-on="jcfJmxServer">
		<property name="serviceUrl" value="service:jmx:rmi://127.0.0.1/jndi/rmi://127.0.0.1:${jcf.jmx.rmi.port}/jcfJmxConnector" />
		<property name="environment">
			<map>
				<entry key="jmx.remote.credentials">
					<bean class=" org.springframework.util.StringUtils" factory-method="commaDelimitedListToStringArray">
						<constructor-arg value="${jcf.jmx.rmi.username},${jcf.jmx.rmi.password}" />
					</bean>
				</entry>
			</map>
		</property>
	</bean>

访问远程JMX

MBeanServerConnection mbeanServerConnection = null;
JMXConnector jmxConnector = null;
JMXServiceURL serviceURL = new JMXServiceURL(URL);
Map<String, String[]> environment = new HashMap<String, String[]>();
String[] credentials = new String[] { USERNAME, PASSWORD };
environment.put("jmx.remote.credentials", credentials);
jmxConnector = JMXConnectorFactory.connect(serviceURL, environment);
mbeanServerConnection = jmxConnector.getMBeanServerConnection();
ObjectName nodeObjName = new ObjectName(
		"jcf.mbeans:name=jcfServerMBean,type=NewServerController");
System.out.println(mbeanServerConnection.invoke(nodeObjName,		"getRepository", new Object[] { "String1" };new String[] { String.class.getName() }));

package test;

import java.util.Iterator;
import java.util.Set;

import javax.management.Attribute;
import javax.management.MBeanInfo;
import javax.management.MBeanServerConnection;
import javax.management.MBeanServerInvocationHandler;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;

public class Client {
	public static void main(String[] args) throws Exception {
		JMXServiceURL url = new JMXServiceURL(
				"service:jmx:rmi:///jndi/rmi://localhost:9999/server");
		JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
		MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
		ObjectName mbeanName = new ObjectName("chengang:name=HelloWorld");
		// 把所有Domain都打印出来
		System.out.println("Domains:---------------");
		String domains[] = mbsc.getDomains();
		for (int i = 0; i < domains.length; i++) {
			System.out.println("\tDomain[" + i + "] = " + domains[i]);
		}
		// MBean的总数
		System.out.println("MBean count = " + mbsc.getMBeanCount());
		// 对name属性的操作（属性名的第一个字母要大写）
		mbsc.setAttribute(mbeanName, new Attribute("Name", "Chen.Gang"));// 设值
		System.out.println("Name = " + mbsc.getAttribute(mbeanName, "Name"));// 取值
		// 得到proxy代理后直接调用的方式
		HelloMBean proxy = (HelloMBean) MBeanServerInvocationHandler
				.newProxyInstance(mbsc, mbeanName, HelloMBean.class, false);
		proxy.printHello();
		proxy.printHello("陈刚");
		// 远程调用的方式
		mbsc.invoke(mbeanName, "printHello", null, null);
		mbsc.invoke(mbeanName, "printHello", new Object[] { "子在川上曰" },
				new String[] { String.class.getName() });
		// 得mbean的信息
		MBeanInfo info = mbsc.getMBeanInfo(mbeanName);
		System.out.println("Hello Class: " + info.getClassName());
		System.out.println("Hello Attriber："
				+ info.getAttributes()[0].getName());
		System.out.println("Hello Operation："
				+ info.getOperations()[0].getName());
		// 得到所有的MBean的ObjectName
		System.out.println("all ObjectName：---------------");
		Set<ObjectInstance> set = mbsc.queryMBeans(null, null);
		for (Iterator<ObjectInstance> it = set.iterator(); it.hasNext();) {
			ObjectInstance oi = (ObjectInstance) it.next();
			System.out.println("\t" + oi.getObjectName());
		}
	}
	// 注销
	// mbsc.unregisterMBean(mbeanName);
	// 关闭MBeanServer连接jmxc.close();

}