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sunbeamzheng:
总结的很好,好好看看。 拷贝问题确实很需要注意,特别是影不影响 ...
java深拷贝与浅拷贝 -
xmh8023:
...
获取POST数据的值 -
xmh8023:
我访问别的服务器怎么办?急求
获取POST数据的值 -
xmh8023:
String urlString="http://l ...
获取POST数据的值 -
lv12312:
Tomcat 7的老版本么?有bug的,https://iss ...
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:
现在的方法:
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
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
发表评论
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http stream
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2011-04-09 12:33 1032需要在Tomcat中的catalina.bat中添加如下的一行 ... -
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2010-09-08 18:25 4531因为需要写一个后台监控服务器的程序,涉及到jmx,也涉 ... -
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2010-07-27 09:37 1419package com.pachira.oamp.jmxS ... -
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2010-07-22 11:04 43309转载地址:http://www.iteye.com/topic ... -
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2010-07-21 14:17 9859当method为POST,Content-Type为 ... -
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