我们正尝试通过JMXConnector使用Java程序与服务器进行通信，并且为了进行身份验证，我们正在使用LDAP。但是我们在这样做时却遇到了这个异常：
D:\Development\Workspace\chatbot\test_script\BSNL_TCCHATBOTCLEARLOCKS_20190828.log
Connecting to jmx pool service:jmx:rmi:///jndi/rmi://bsnl-tc-dev.bsnltcdev:8088/jmxrmito delete s's sessionjava.rmi.UnmarshalException: Error unmarshaling return; nested exception is:
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.sun.jndi.ldap.LdapCtx
at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unknown Source)
at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source)
at com.sun.proxy.$Proxy0.newClient(Unknown Source)
at javax.management.remote.rmi.RMIConnector.getConnection(Unknown Source)
at javax.management.remote.rmi.RMIConnector.connect(Unknown Source)
at javax.management.remote.JMXConnectorFactory.connect(Unknown Source)
at com.asml.listjmxdomains.BSNL_listJMXDomains.<init>(BSNL_listJMXDomains.java:77)
at com.asml.listjmxdomains.BSNL_listJMXDomains.main(BSNL_listJMXDomains.java:118)
Caused by: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.sun.jndi.ldap.LdapCtx
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
at java.io.ObjectInputStream.readSerialData(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
我们正在使用的代码可以在下面找到：
/**
* @copyright 2017 BSNL. All Rights Reserved.
* @file BSNL_CommonHelper.java
* @package com.bsnl.teamcenter.helper
* @Description This class implements clear locks use case for chat bot
* @author BSNL
* @version 1.0
* @date Jan 11, 2019
*
* <table border="1">
* <caption align="left">Change History</caption>
* <tr><th>Description</th> <th>Who</th> <th>Date</th></tr>
* </table>
*/
package com.bsnl.listjmxdomains;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;
import java.util.Set;
import java.util.logging.FileHandler;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.logging.SimpleFormatter;
import javax.management.AttributeNotFoundException;
import javax.management.InstanceNotFoundException;
import javax.management.IntrospectionException;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanException;
import javax.management.MBeanServerConnection;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectInstance;
import javax.management.ObjectName;
import javax.management.ReflectionException;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
public class BSNL_listJMXDomains {
private JMXServiceURL url;
private JMXConnector jmxc;
private MBeanServerConnection mbsc;
private static Properties props = null;
static String hostname = null;
static String BSNL_CLEARLOCKSLOGGER = null;
static String logFilePath = null;;
static String user_name=null;
static final String DATE_FORMAT_yyyyMMdd =
new SimpleDateFormat("yyyyMMdd").format(new Date()).toString();
private static Logger logger =null;
String store = null;
String idle33 = null;
String idle44 = null;
String test1 = null;
String test2 = null;
String test79 = null;
static boolean idle = false;
static boolean value7979 = false;
boolean sample =false;
boolean sample1 = false;
public BSNL_listJMXDomains(String url)
{
try
{
this.url = new JMXServiceURL(url);
this.jmxc = JMXConnectorFactory.connect(this.url);
this.mbsc = this.jmxc.getMBeanServerConnection();
}
catch(IOException e)
{
e.printStackTrace();
}
}
public void go()
{
listJMXDomains();
listManager();
listTCServers();
listTCManagerMonitors();
listTCServerMonitors();
}
public static void main(String[] args)
{
/* construct jmx pool server url of corporate servers to connect */
String url = "service:jmx:rmi:///jndi/rmi://" + args[1] + ":8088/jmxrmi" ;
/* read server details from properties file*/
props = readPropertiesFromFile(args[2]);
/* create log file */
BSNL_CLEARLOCKSLOGGER="BSNL_TCCHATBOTCLEARLOCKS_"+DATE_FORMAT_yyyyMMdd + ".log";
logFilePath = System.getProperty("user.dir") + File.separator + BSNL_CLEARLOCKSLOGGER;
createLoggerFile(logFilePath);
user_name = args[0]; /* user name whose session should be removed from server */
hostname=args[1]; /* server */
System.out.print("Connecting to jmx pool " + url + "to delete " + user_name + "'s session");
new BSNL_listJMXDomains(url).go();
}
public static void test(String inpStr)
{
System.out.println(inpStr);
}
void listJMXDomains()
{
try
{
String[] domains = this.mbsc.getDomains();
System.out.println("Domains: ");
String[] arrayOfString1;
int j = (arrayOfString1 = domains).length;
for(int i = 0; i<j; i++)
{
String name = arrayOfString1[i];
System.out.println("\t"+name);
}
}
catch(IOException e)
{
e.printStackTrace();
}
}
void listManager()
{
try
{
ObjectName oNamePattern = new ObjectName("AdministerPoolA manager :id=PoolA");
Set<ObjectInstance> objs = this.mbsc.queryMBeans(oNamePattern, null);
for(ObjectInstance obj : objs)
{
ObjectName oName = obj.getObjectName();
String oClass = obj.getClassName();
String serverId = oName.getKeyProperty("id");
System.out.println("Class: "+oClass+", Id: "+serverId);
printAttributes(oName);
}
}
catch(MalformedObjectNameException|IOException|AttributeNotFoundException|InstanceNotFoundException|MBeanException|ReflectionException|IntrospectionException e)
{
e.printStackTrace();
}
}
void listTCServers()
{
try
{
ObjectName oNamePattern = new ObjectName("Administer PoolA servers :id=*") ;
Set<ObjectInstance> objs = this.mbsc.queryMBeans(oNamePattern, null);
for(ObjectInstance obj : objs)
{
ObjectName oName = obj.getObjectName();
String oClass = obj.getClassName();
if(oClass.equals("com.teamcenter.jeti.serversubpoolmanager.ServerInfo"))
{
String serverId = oName.getKeyProperty("id");
System.out.println(serverId);
if(idle==true)
{
printAttributes2(oName);
}
printAttributes1(oName);
}
}
}
catch(MalformedObjectNameException|IOException|AttributeNotFoundException|InstanceNotFoundException|MBeanException|ReflectionException|IntrospectionException e)
{
e.printStackTrace();
}
}
void listTCManagerMonitors()
{
try
{
ObjectName oNamePattern = new ObjectName("Administer PoolA manager monitoring:id=*");
Set<ObjectInstance> objs = this.mbsc.queryMBeans(oNamePattern,null);
for(ObjectInstance obj : objs){
ObjectName oName = obj.getObjectName();
String oClass = obj.getClassName();
String serverId = oName.getKeyProperty("id");
System.out.println("Class : " + oClass + ", Id: " + serverId);
printAttributes(oName);
}
}
catch(MalformedObjectNameException|IOException|AttributeNotFoundException|InstanceNotFoundException|MBeanException|ReflectionException|IntrospectionException e)
{
e.printStackTrace();
}
}
void listTCServerMonitors()
{
try
{
ObjectName oNamePattern = new ObjectName("AdministerPoolA serversmonitoring:type=*,id=*");
Set<ObjectInstance> objs = this.mbsc.queryMBeans(oNamePattern,null);
for(ObjectInstance obj : objs){
ObjectName oName = obj.getObjectName();
String oClass = obj.getClassName();
String type = oName.getKeyProperty("type");
String id = oName.getKeyProperty("id");
System.out.println("Class : " + oClass + ", Type: "+ type + ", Id: " + id);
printAttributes(oName);
}
}
catch(MalformedObjectNameException|IOException|AttributeNotFoundException|InstanceNotFoundException|MBeanException|ReflectionException|IntrospectionException e)
{
e.printStackTrace();
}
}
private void printAttributes(ObjectName oName) throws InstanceNotFoundException,IntrospectionException,AttributeNotFoundException,ReflectionException,MBeanException,IOException
{
MBeanAttributeInfo[] arrayOfMBeanAttributeInfo;
int j = (arrayOfMBeanAttributeInfo = this.mbsc.getMBeanInfo(oName).getAttributes()).length;
for(int i=0; i<j; i++)
{
MBeanAttributeInfo attr = arrayOfMBeanAttributeInfo[i];
System.out.println("\t" + attr.getName() + ": " + this.mbsc.getAttribute(oName, attr.getName().toString()) );
}
}
private void printAttributes2(ObjectName oName) throws InstanceNotFoundException,IntrospectionException,AttributeNotFoundException,ReflectionException,MBeanException,IOException
{
MBeanAttributeInfo[] arrayOfMBeanAttributeInfo;
int j = (arrayOfMBeanAttributeInfo = this.mbsc.getMBeanInfo(oName).getAttributes()).length;
for(int i=0; i<j; i++)
{
MBeanAttributeInfo attr = arrayOfMBeanAttributeInfo[i];
String idle22 = null;
String idle11 = null;
System.out.println("\t" + attr.getName() + ": " + this.mbsc.getAttribute(oName, attr.getName().toString()) );
try
{
if(attr.getName().toString().compareToIgnoreCase("Process ID")== 0)
{
idle22 = this.mbsc.getAttribute(oName, attr.getName().toString()).toString();
System.out.println("process id: " + idle22 );
idle33 = idle22;
}
if(attr.getName().toString().compareToIgnoreCase("Active")==0)
{
idle11 = this.mbsc.getAttribute(oName, attr.getName().toString()).toString();
System.out.println("idle11 "+ idle11);
if(idle11.equalsIgnoreCase("false"))
{
System.out.println("entered");
idle44 = "true";
}
else
{
System.out.println("Not Entered");
idle44 = "false";
}
}
if(attr.getName().toString().compareToIgnoreCase("Health Monitoring")==0)
{
if(idle44.compareToIgnoreCase("true")==0)
{
logger.info("\nDeleting "+ user_name + " session on corporate server " + hostname + "\n" );
String cmd = "taskkill /s " + hostname + " /u " + props.getProperty("username") + " /p " + props.getProperty("pwd") + " /pid " + idle33 + " /f";
System.out.println("cmd"+cmd);
Runtime.getRuntime().exec(cmd);
}
}
}
catch(Exception localException){}
}
}
private void printAttributes1(ObjectName oName) throws InstanceNotFoundException, IntrospectionException, AttributeNotFoundException, ReflectionException, MBeanException, IOException
{
boolean sample = false;
MBeanAttributeInfo[] arrayOfMBeanAttributeInfo;
int j = (arrayOfMBeanAttributeInfo = this.mbsc.getMBeanInfo(oName).getAttributes()).length;
for( int i =0; i<j; i++)
{
MBeanAttributeInfo attr = arrayOfMBeanAttributeInfo[i];
System.out.println("\t" + attr.getName() + ":" + this.mbsc.getAttribute(oName, attr.getName().toString()));
try
{
String test1 = null;
test1 = this.mbsc.getAttribute(oName, attr.getName().toString()).toString();
String test79 = user_name;
if(test1.equalsIgnoreCase(test79))
{
sample = true;
}
if(attr.getName().toString().compareToIgnoreCase("Process ID")==0)
{
if(sample)
{
sample = false;
logger.info("\nDeleting "+ user_name + " session on corporate server " + hostname + "\n" );
String cmd = "taskkill /s " + hostname + " /u " + props.getProperty("username") + " /p " + props.getProperty("pwd") + " /pid " + test1 + " /f";
System.out.println("cmd"+cmd);
Runtime.getRuntime().exec(cmd);
}
}
}
catch(Exception localException){}
}
}
private static Properties readPropertiesFromFile(String paramString)
{
Properties localProperties = null;
if (paramString != null)
{
try
{
localProperties = new Properties();
FileInputStream localFileInputStream = new FileInputStream(paramString);
localProperties.load(localFileInputStream);
}
catch (Exception localException)
{
localException.printStackTrace();
}
}
return localProperties;
}
private static Logger createLoggerFile(String paramString)
{
try
{
System.out.println(paramString);
FileHandler localFileHandler = new FileHandler(paramString, true);
SimpleFormatter localSimpleFormatter = new SimpleFormatter();
localFileHandler.setFormatter(localSimpleFormatter);
if (logger == null)
logger = Logger.getLogger("BSNL_listJMXDomains" );
logger.addHandler(localFileHandler);
logger.setLevel(Level.INFO);
}
catch (SecurityException localSecurityException)
{
localSecurityException.printStackTrace();
}
catch (IOException localIOException)
{
localIOException.printStackTrace();
}
return logger;
}
}
您能帮我解释一下此消息吗？我确实知道这可能是因为该类不可序列化，并且Transient关键字可以解决此问题，但问题是它抱怨的类-LDAPCtx不归我们所有。因此，我试图查看是否还有其他方法可以解决此问题。我也不是LDAP专家，无法朝着这个方向射击。
任何指针都会有所帮助。
谢谢， 帕万。