JMX操作ActiveMQ(1)
我们知道ActiveMQ broker的管理接口是通过JMX方式提供的。
一个简单的访问方式就是通过jconsole，输入
service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi
需要注意的是：
1、默认JMX功能是没有打开的，需要在activemq.xml的broker配置上添加useJmx="true"
2、需要在managementContext里，修改为createConnector="true"，（同时这里也可以修改jmx的端口和domain）
（参见http://activemq.apache.org/jmx.html）
通过jconsole来操作还是不太方便。特别是某些时候我们需要把对broker和queue的管理集成到我们的管理系统中去。
这时候我们就需要通过JMX的编程接口来与broker进行交互了。
可以先写一个小程序，看看broker的jmx中都提供了什么东西。
package kk;
import java.util.Iterator;
import java.util.Set;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanServerConnection;
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 TestJMX {
public static void main(String[] args) throws Exception {
String surl = "service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi";
JMXServiceURL url = new JMXServiceURL(surl);
JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
System.out.println("Domains:---------------");
String domains[] = mbsc.getDomains();
for (int i = 0; i < domains.length; i++) {
System.out.println("\tDomain[" + i + "] = " + domains[i]);
}
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());
}
System.out.println("org.apache.activemq:BrokerName=localhost,Type=Broker：---------------");
ObjectName mbeanName = new ObjectName("org.apache.activemq:BrokerName=localhost,Type=Broker");
MBeanInfo info = mbsc.getMBeanInfo(mbeanName);
System.out.println("Class: " + info.getClassName());
if (info.getAttributes().length > 0){
for(MBeanAttributeInfo m : info.getAttributes())
System.out.println("\t ==> Attriber：" + m.getName());
}
if (info.getOperations().length > 0){
for(MBeanOperationInfo m : info.getOperations())
System.out.println("\t ==> Operation：" + m.getName());
}
jmxc.close();
}
}
输出结果：
Domains:--------------- Domain[0] = JMImplementation Domain[1] = com.sun.management Domain[2] = java.lang Domain[3] = org.apache.activemq Domain[4] = java.util.logging all ObjectName：--------------- java.lang:type=OperatingSystem java.lang:type=MemoryPool,name=Perm Gen java.lang:type=Memory JMImplementation:type=MBeanServerDelegate org.apache.activemq:BrokerName=localhost,Type=Producer,destinationType=Queue,destinationName=kk.qq,clientId=ID_bsb3-1381-1372146822218-0_1,producerId=ID_bsb3-1381-1372146822218-1_1_1_1 org.apache.activemq:BrokerName=localhost,Type=Connection,ConnectorName=openwire,Connection=ID_bsb3-1381-1372146822218-0_1 org.apache.activemq:BrokerName=localhost,Type=Subscription,persistentMode=Non-Durable,destinationType=Queue,destinationName=kk.qq,clientId=ID_bsb3-1381-1372146822218-0_1,consumerId=ID_bsb3-1381-1372146822218-1_1_1_1 org.apache.activemq:BrokerName=localhost,Type=Connection,ConnectorName=openwire,ViewType=address,Name=tcp_//127.0.0.1_1347 java.lang:type=GarbageCollector,name=MarkSweepCompact org.apache.activemq:BrokerName=localhost,Type=Broker org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Producer.Topic.kk.dp org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Topic java.lang:type=MemoryManager,name=CodeCacheManager org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Connection org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Queue org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Consumer.Topic.kk.dp org.apache.activemq:BrokerName=localhost,Type=Connection,ConnectorName=openwire,Connection=ID_bsb3-1346-1372146798953-0_1 java.lang:type=Compilation org.apache.activemq:BrokerName=localhost,Type=Connection,ConnectorName=openwire,ViewType=address,Name=tcp_//127.0.0.1_1382 java.util.logging:type=Logging java.lang:type=MemoryPool,name=Tenured Gen org.apache.activemq:BrokerName=localhost,Type=Subscription,persistentMode=Non-Durable,destinationType=Topic,destinationName=ActiveMQ.Advisory.TempQueue_ActiveMQ.Advisory.TempTopic,clientId=ID_bsb3-1346-1372146798953-0_1,consumerId=ID_bsb3-1346-1372146798953-1_1_-1_1 java.lang:type=MemoryPool,name=Survivor Space java.lang:type=Runtime org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Producer.Queue.kk.qq java.lang:type=GarbageCollector,name=Copy org.apache.activemq:BrokerName=localhost,Type=Queue,Destination=kk.qq org.apache.activemq:BrokerName=localhost,Type=Subscription,persistentMode=Durable,subscriptionID=kk-dp-dc,destinationType=Topic,destinationName=kk.dp,clientId=kk-dp java.lang:type=MemoryPool,name=Eden Space org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=ActiveMQ.Advisory.Consumer.Queue.kk.qq java.lang:type=Threading org.apache.activemq:BrokerName=localhost,Type=Topic,Destination=kk.dp com.sun.management:type=HotSpotDiagnostic java.lang:type=ClassLoading org.apache.activemq:BrokerName=localhost,Type=Subscription,persistentMode=Non-Durable,destinationType=Topic,destinationName=ActiveMQ.Advisory.TempQueue_ActiveMQ.Advisory.TempTopic,clientId=ID_bsb3-1381-1372146822218-0_1,consumerId=ID_bsb3-1381-1372146822218-1_1_-1_1 java.lang:type=MemoryPool,name=Code Cache org.apache.activemq:BrokerName=localhost,Type=Connector,ConnectorName=openwire org.apache.activemq:BrokerName=localhost,Type=Broker：--------------- Class: org.apache.activemq.broker.jmx.BrokerView ==> Attriber：Uptime ==> Attriber：BrokerVersion ==> Attriber：Slave ==> Attriber：BrokerName ==> Attriber：Persistent ==> Attriber：TransportConnectors ==> Attriber：BrokerId ==> Attriber：Topics ==> Attriber：Queues ==> Attriber：TemporaryTopics ==> Attriber：TemporaryQueues ==> Attriber：TopicSubscribers ==> Attriber：DurableTopicSubscribers ==> Attriber：QueueSubscribers ==> Attriber：TemporaryTopicSubscribers ==> Attriber：TemporaryQueueSubscribers ==> Attriber：InactiveDurableTopicSubscribers ==> Attriber：TopicProducers ==> Attriber：QueueProducers ==> Attriber：TemporaryTopicProducers ==> Attriber：TemporaryQueueProducers ==> Attriber：DynamicDestinationProducers ==> Attriber：TotalEnqueueCount ==> Attriber：TotalDequeueCount ==> Attriber：TotalConsumerCount ==> Attriber：TotalProducerCount ==> Attriber：TotalMessageCount ==> Attriber：MemoryPercentUsage ==> Attriber：MemoryLimit ==> Attriber：StoreLimit ==> Attriber：StorePercentUsage ==> Attriber：TempLimit ==> Attriber：TempPercentUsage ==> Attriber：StatisticsEnabled ==> Attriber：OpenWireURL ==> Attriber：StompURL ==> Attriber：SslURL ==> Attriber：StompSslURL ==> Attriber：VMURL ==> Attriber：DataDirectory ==> Attriber：JMSJobScheduler ==> Operation：gc ==> Operation：stop ==> Operation：enableStatistics ==> Operation：addConnector ==> Operation：removeConnector ==> Operation：addNetworkConnector ==> Operation：removeNetworkConnector ==> Operation：stopGracefully ==> Operation：resetStatistics ==> Operation：disableStatistics ==> Operation：terminateJVM ==> Operation：addTopic ==> Operation：addQueue ==> Operation：removeTopic ==> Operation：removeQueue ==> Operation：createDurableSubscriber ==> Operation：destroyDurableSubscriber ==> Operation：reloadLog4jProperties ==> Operation：getTransportConnectorByType ==> Operation：start
上面只是拿到了broker的属性和操作，同理也可以拿到其它对象的属性和操作列表。
根据这些，我们就可以拿到broker，connector，producer，consumer，queue，topic，Subscription等等的Object对象，进一步的操作他们。
待续。