counter.java

精通Jboss——Ejb和Web Services开发精解的随书源代码

package com.liuyang.jmx.mbeans.counter;

import javax.management.MBeanServer;
import javax.management.ObjectName;

import org.jboss.system.ServiceMBeanSupport;

/**
 * @author liuyang
 * @jmx.mbean
 *   name=":service=Counter"
 * 
 */
public class Counter extends ServiceMBeanSupport implements CounterMBean {

	int sum = 0;
	/**
	 * @jmx.managed-operation 
	 */
	public void add(int num) {
		sum+=num;
	}
	/**
	 * @jmx.managed-operation 
	 */	
	public int get(int num) {
		MBeanServer server = this.getServer();
		ObjectName name;
		try {
			name = new ObjectName("book.liuyang:service=Counter");
			String[] sig1 = {"int"};
			Object[] opArgs1 = {new Integer(3)};
			Object result1 = server.invoke(name, "add", opArgs1, sig1);
			System.out.println("在get方法中调用MBean:"+result1);
		} catch (Exception e) {
			e.printStackTrace();
		}					
		sum+=num;
		return sum;
	}
}