[JMX一步步来]　8、编写程序来连接MBean

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 set = mbsc.queryMBeans(null, null);

        for (Iterator 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();

    }

}