invoke spring proxy bean`s method

��޺� — Thu, 14 Aug 2008 13:54:03 +0800

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.springframework.aop.support.AopUtils;
import org.springframework.util.MethodInvoker;

/**
*
* @author wangliang_gz@hotmail.com
* @version 1.1.0
*/
public class MethodUtils {

    static public Object invokeMethod(Object obj, String methodName,
            Object[] args) {

        if (AopUtils.isJdkDynamicProxy(obj)) {
            if (args == null) {
                args = new Object[0];
            }
            int arguments = args.length;
            Class parameterTypes[] = new Class[arguments];
            for (int i = 0; i < arguments; i++) {
                parameterTypes[i] = args[i].getClass();
            }

            Class _targetClass = AopUtils.getTargetClass(obj);

            Class[] _targetInterfaces = _targetClass.getInterfaces();
            Method method = null;
            for (int i = 0; i < _targetInterfaces.length; i++) {
                method = org.apache.commons.beanutils.MethodUtils
                        .getMatchingAccessibleMethod(_targetInterfaces[i], methodName,
                                parameterTypes);
                if (method != null) {
                    break;
                }
            }
            if (method == null) {
                method = org.apache.commons.beanutils.MethodUtils
                        .getMatchingAccessibleMethod(_targetClass, methodName,
                                parameterTypes);
            }
            try {
                // AopUtils.invokeJoinpointUsingReflection(obj, method, args);
                return java.lang.reflect.Proxy.getInvocationHandler(obj)
                        .invoke(obj, method, args);
            } catch (Throwable e) {
                throw new RuntimeException(e);
            }

        } else {
            try {
                MethodInvoker invoker = new MethodInvoker();
                invoker.setTargetObject(obj);
                invoker.setArguments(args);
                invoker.setTargetMethod(methodName);
                invoker.prepare();
                return invoker.invoke();
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            } catch (NoSuchMethodException e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            } catch (InvocationTargetException e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            } catch (IllegalAccessException e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            }
        }
    }

}

A JDBC pool connection leak was detected.

��޺� — Sat, 15 Mar 2008 01:49:10 +0800

f��:WLsp3,hibernate3.1.3,spring1.2.7

at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6458)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
Caused by: org.springframework.transaction.CannotCreateTransactionException:

Could not open Hibernate Session for transaction; nested exception is

org.hibernate.exception.GenericJDBCException: Cannot open connection
at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:548)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.

getTransaction(AbstractPlatformTransactionManager.java:282)
at org.springframework.transaction.interceptor.TransactionAspectSupport.

createTransactionIfNecessary(TransactionAspectSupport.java:225)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.

Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tapestry.listener.ListenerMap.invokeTargetMethod(ListenerMap.java:257)
... 30 more
Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:91)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:79)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:307)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:109)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:134)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:57)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1236)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:515)
... 43 more
Caused by: weblogic.jdbc.extensions.PoolLimitSQLException: weblogic.common.resourcepool.ResourceLimitException:

No resources currently available in pool cp_ffp to allocate to applications, please increase the size of the pool and retry..
at weblogic.jdbc.common.internal.JDBCUtil.wrapAndThrowResourceException(JDBCUtil.java:203)
at weblogic.jdbc.pool.Driver.connect(Driver.java:161)
at weblogic.jdbc.jts.Driver.getNonTxConnection(Driver.java:507)
at weblogic.jdbc.jts.Driver.connect(Driver.java:139)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:305)
at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider

.getConnection(LocalDataSourceConnectionProvider.java:80)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:304)
... 48 more
<2008-3-11 ��10ʱ30��42�� GMT> <Warning> <JDBC> <BEA-001074> <A JDBC pool connection leak was detected.

A connection leak occurs when a connection obtained from the pool was not closed explicitly by calling close()

and then was disposed by the garbage collector and returned to the connection pool. The following stack

trace at create shows where the leaked connection was created.

[Null exception passed, creating stack trace for offending caller]
at weblogic.utils.StackTraceUtils.throwable2StackTrace(StackTraceUtils.java:28)
at weblogic.jdbc.wrapper.PoolConnection.finalizeInternal(PoolConnection.java:84)
at weblogic.jdbc.wrapper.PoolConnection_com_sybase_jdbc2_jdbc_SybConnection.finalize(Unknown Source)
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
at java.lang.ref.Finalizer.runFinalizer(Unknown Source)
at java.lang.ref.Finalizer.access$100(Unknown Source)
at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

http://forums.bea.com/thread.jspa?threadID=200035670&start=105

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invoke spring proxy bean`s method

A JDBC pool connection leak was detected.

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