JMX问题

这个问题貌似是启动tomcat之后就获取不到jmx的链接了，不知咋回事～～
终于找到解决的办法了，呵呵
参考：http://www.docjar.com/html/api/sun/tools/jconsole/ProxyClient.java.html
之前的获取MBeanServerConnection方法看来是有些问题，
以前的方法：

private MBeanServerConnection getRemoteMBConn(){
//	    String user = "monitorRole";
//	    String pw = "password";
//	    String[] credentials = new String[] { user, pw };
//	    Map<String, String[]> props = new HashMap<String, String[]>();
//	    props.put("jmx.remote.credentials", credentials);
	    JMXServiceURL address;
	    MBeanServerConnection mbs=null;
	    String jmxServerIp=ConfigUtils.getInstance().getOampConfig(OampConstants.JMX_SERVER_IP);//127.0.0.1
	    String jmxServerPort=ConfigUtils.getInstance().getOampConfig(OampConstants.JMX_SERVER_PORT);//9999
		try {
//			address =new JMXServiceURL("service:jmx:rmi:///jndi/rmi://127.0.0.1:9999/jmxrmi");
			address =new JMXServiceURL("service:jmx:rmi:///jndi/rmi://"+jmxServerIp+":"+jmxServerPort+"/jmxrmi");
			JMXConnector connector = JMXConnectorFactory.connect(address, null);
//			address = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:1234/jmxrmi");
//			JMXConnector connector = JMXConnectorFactory.connect(address, props);
			mbs= connector.getMBeanServerConnection();
		    connector.connect();
		} catch (Exception e) {
			SrvLogger.error("oamp", ClientMBServerManage.class, "Fail to getRemoteMBConn", e);
		}
	    return mbs;
	}

现在的方法：

/**
	 * 获取远程MBeanServerConnection
	 * @return
	 */
	private MBeanServerConnection getRemoteMBConn(){
//	    String user = "monitorRole";
//	    String pw = "password";
//	    String[] credentials = new String[] { user, pw };
//	    Map<String, String[]> props = new HashMap<String, String[]>();
//	    props.put("jmx.remote.credentials", credentials);
//	    JMXServiceURL address;
//	    MBeanServerConnection mbs=null;
//	    String jmxServerIp=ConfigUtils.getInstance().getOampConfig(OampConstants.JMX_SERVER_IP);//127.0.0.1
//	    String jmxServerPort=ConfigUtils.getInstance().getOampConfig(OampConstants.JMX_SERVER_PORT);//9999
//		try {
//			address =new JMXServiceURL("service:jmx:rmi:///jndi/rmi://"+jmxServerIp+":"+jmxServerPort+"/jmxrmi");
//			JMXConnector connector = JMXConnectorFactory.connect(address, null);
//			mbs= connector.getMBeanServerConnection();
//		    connector.connect();
//		} catch (Exception e) {
//			SrvLogger.error("oamp", ClientMBServerManage.class, "Fail to getRemoteMBConn", e);
//		}
		
		String jmxServerIp=ConfigUtils.getInstance().getOampConfig(OampConstants.JMX_SERVER_IP);//127.0.0.1
	    String jmxServerPort=ConfigUtils.getInstance().getOampConfig(OampConstants.JMX_SERVER_PORT);//9999
		try{
			MBeanServerConnection mbs=null;
			JMXServiceURL address=new JMXServiceURL("service:jmx:rmi:///jndi/rmi://"+jmxServerIp+":"+jmxServerPort+"/jmxrmi");
			Registry registry=LocateRegistry.getRegistry(jmxServerIp, Integer.parseInt(jmxServerPort));
			RMIServer stub=null;
			JMXConnector jmxc=null;
			if (isVmConnector()) {
				  if (stub == null) {
					  stub = (RMIServer) registry.lookup("jmxrmi");
				  }
				  jmxc = new RMIConnector(stub, null);
				  jmxc.connect();
			  } else {
			      jmxc = JMXConnectorFactory.connect(address);
			  }
			mbs=jmxc.getMBeanServerConnection();
		    return mbs;
		} catch (Exception e) {
//			e.printStackTrace();
			SrvLogger.error("oamp", ServerMBClientManage.class, "Fail to getRemoteMBConn", e);
		}
	    return null;
	}
	/**
	* Returns true if this {@code ProxyClient} denotes
	* a JMX connector for a JMX VM agent.
	*/
	 private boolean isVmConnector() {
	     return true;
	 }

先记录下问题，JMX Remote时通过JMXConnectorFactory.connect(address, null);获取connector，在正常情况下一切ok，但是当两台机器时，一台作为服务器，一台作为客户机，当有一方把web服务重启时，然后再执行JMXConnectorFactory.connect(address, null);时，则会出现一些问题，不管怎么弄都出现问题，真的是没辙了。记得之前是解决了这个问题的，现在又出现了，并且没有丝毫的办法，哎。。。。。
出现的问题如下：

java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.naming.java.javaURLContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory]
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:338)
at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:248)
at com.pachira.oamp.jmx.jmxServer.ServerMBClientManage.getRemoteMBConn(ServerMBClientManage.java:317)
at com.pachira.oamp.jmx.jmxServer.ServerMBClientManage.refreshClientConn(ServerMBClientManage.java:47)
at com.pachira.oamp.jmx.jmxServer.ServerMBClientManage.getRemoteMBeanRetry(ServerMBClientManage.java:75)
at com.pachira.oamp.jmx.jmxServer.ServerInitMBean.updateServerMBean(ServerInitMBean.java:79)
at com.pachira.oamp.jmx.MBean.Server.update(Server.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:120)
at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1427)
at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1360)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:788)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.naming.java.javaURLContextFactory [Root exception is java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory]
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1884)
at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1856)
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:257)
... 36 more
Caused by: java.lang.ClassNotFoundException: org.apache.naming.java.javaURLContextFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:46)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:654)
... 42 more

评论

1 楼 lv12312 2014-08-20  

Tomcat 7的老版本么？有bug的，https://issues.apache.org/bugzilla/show_bug.cgi?id=54247