JMX分析3-MXBean及OpenMBean
MXBean跟标准MBean很像，标准MBean需要实现XXXXMBean这样命名的接口，而MXBean则需要实现XXXXMXBean这样命名的接口，也可以在接口上使用注解@MXBean，而不用强制使用XXXMXBean这样的命名格式。但是MXBean有点在于它可以供任何的client，包括remote client访问相关属性和执行相关操作。并且client不需要具有MXBean类(e.g. 在JConsole中，MBean类型也可以供remote client访问，基本类型是可以展示的，但是一旦有复杂类型，那就不能显示了)。为了满足这种机制，JMX提供了一套Open type-Open value用于双方交互。以使耦合度减少。VM的很多属性都是通过MXBean的形式提供的。
例子：
代码:ZooMXBean，MXBean接口
1 package test.jmx.mxbean.simple;
2
3 public interface ZooMXBean {
4
5 public Tiger getTiger();
6
7 public void addTiger(Tiger tiger);
8
9 public String getZooName();
10
11 public int getTigerCount();
12 }
13
代码:ZooImpl，MXBean的实现类
1 package test.jmx.mxbean.simple;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 public class ZooImpl implements ZooMXBean {
7
8 private String zooName = " China zoo";
9 private static List<Tiger> list;
10 static {
11 //初始化一只Tiger
12 Tiger tiger = new Tiger(" the first tiger");
13 list = new ArrayList<Tiger>();
14 list.add(tiger);
15 }
16 public void addTiger(Tiger tiger) {
17 list.add(tiger);
18 }
19
20 public Tiger getTiger() {
21 return list.get(0);
22 }
23
24 public int getTigerCount(){
25 return list.size();
26 }
27
28 public String getZooName() {
29 return zooName;
30 }
31
32 public String[] getAnimalNames(){
33 return new String[]{"bird","tiger","mouse"};
34 };
35 }
36
代码:Tiger，复杂的类型(不同于java基本类型)
1 package test.jmx.mxbean.simple;
2
3 import java.beans.ConstructorProperties;
4
5
6 public class Tiger {
7
8 private String name;
9 @ConstructorProperties({})
10 public Tiger(){
11 this.name = "the default constructor";
12 }
13
14 @ConstructorProperties({"name"})
15 public Tiger(String name){
16 this.name = name;
17 }
18
19 public String getName(){
20 return name;
21 }
22
23 public String roar(){
24 return "@￥%%……";
25 }
26
27 public void setName(String name){
28 this.name=name;
29 }
30 public String[] getFoodNames(){
31 return new String[]{"rabbit","sheep","pig"};
32 }
33 }
34
代码:Server
1 package test.jmx.mxbean.simple;
2
3 import java.lang.management.ManagementFactory;
4 import java.rmi.registry.LocateRegistry;
5
6 import javax.management.MBeanServer;
7 import javax.management.ObjectName;
8 import javax.management.remote.JMXConnectorServer;
9 import javax.management.remote.JMXConnectorServerFactory;
10 import javax.management.remote.JMXServiceURL;
11
12 public class Server {
13 public static void main(String args[]) throws Exception{
14
15 // MBeanServer mbs = MBeanServerFactory.createMBeanServer();
16 MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
17 LocateRegistry.createRegistry(9999);
18 JMXServiceURL url = new JMXServiceURL(
19 "service:jmx:rmi:///jndi/rmi://localhost:9999/server");
20 JMXConnectorServer cs = JMXConnectorServerFactory
21 .newJMXConnectorServer(url, null, mbs);
22
23 ZooMXBean mxbean = new ZooImpl();
24 ObjectName name = new ObjectName("ZooMXBean:type=MXBean");
25 //注册ZooOpenMBean这个OpenMBean
26 mbs.registerMBean(mxbean, name);
27 //开起RMI服务
28 cs.start();
29
30 System.out.println(" the mxbean server is start");
31 }
32 }
33
代码:Client端
1
2 package test.jmx.mxbean.simple;
3
4
5
6 import javax.management.MBeanServerConnection;
7 import javax.management.ObjectName;
8 import javax.management.openmbean.ArrayType;
9 import javax.management.openmbean.CompositeData;
10 import javax.management.openmbean.CompositeDataSupport;
11 import javax.management.openmbean.CompositeType;
12 import javax.management.openmbean.OpenType;
13 import javax.management.openmbean.SimpleType;
14 import javax.management.remote.JMXConnector;
15 import javax.management.remote.JMXConnectorFactory;
16 import javax.management.remote.JMXServiceURL;
17
18 public class Client {
19
20 public static void main(String[] arg
补充：软件开发 , Java ,
