java.rmi.RemoteException: Transaction Rolledback.; nested exception is: 
	weblogic.transaction.internal.TimedOutException: Transaction timed out after 32 seconds 
Name=[EJB testpool.EJBPoolBean.isLogin(java.lang.String,java.lang.String)],Xid=BEA1-0001D529A50E7F28EDB9(10061327),Status=Active,numRepliesOwedMe=0,numRepliesOwedOthers=0,seconds since begin=32,seconds left=30,activeThread=Thread[ExecuteThread: '13' for queue: 'weblogic.kernel.Default',5,Thread Group for Queue: 'weblogic.kernel.Default'],XAServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(ServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(state=started,assigned=none),xar=weblogic.jdbc.wrapper.JTSXAResourceImpl@1304e60),SCInfo[mydomain+myserver]=(state=active),properties=({weblogic.transaction.name=[EJB testpool.EJBPoolBean.isLogin(java.lang.String,java.lang.String)], weblogic.jdbc=t3://192.168.1.98:7001}),OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=myserver+192.168.1.98:7001+mydomain+t3+, XAResources={},NonXAResources={})],CoordinatorURL=myserver+192.168.1.98:7001+mydomain+t3+)
	at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:186)
	at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:284)
	at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:244)
	at testpool.EJBPool_isb7ao_EOImpl_811_WLStub.isLogin(Unknown Source)
	at testpool.SrvLogin.doPost(SrvLogin.java:62)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1053)
	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:387)
	at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6310)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
	at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3622)
	at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2569)
	at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
	at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: weblogic.transaction.internal.TimedOutException: Transaction timed out after 32 seconds 
Name=[EJB testpool.EJBPoolBean.isLogin(java.lang.String,java.lang.String)],Xid=BEA1-0001D529A50E7F28EDB9(10061327),Status=Active,numRepliesOwedMe=0,numRepliesOwedOthers=0,seconds since begin=32,seconds left=30,activeThread=Thread[ExecuteThread: '13' for queue: 'weblogic.kernel.Default',5,Thread Group for Queue: 'weblogic.kernel.Default'],XAServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(ServerResourceInfo[weblogic.jdbc.wrapper.JTSXAResourceImpl]=(state=started,assigned=none),xar=weblogic.jdbc.wrapper.JTSXAResourceImpl@1304e60),SCInfo[mydomain+myserver]=(state=active),properties=({weblogic.transaction.name=[EJB testpool.EJBPoolBean.isLogin(java.lang.String,java.lang.String)], weblogic.jdbc=t3://192.168.1.98:7001}),OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=myserver+192.168.1.98:7001+mydomain+t3+, XAResources={},NonXAResources={})],CoordinatorURL=myserver+192.168.1.98:7001+mydomain+t3+)
	at weblogic.transaction.internal.ServerTransactionImpl.wakeUp(ServerTransactionImpl.java:1492)
	at weblogic.transaction.internal.ServerTransactionManagerImpl.processTimedOutTransactions(ServerTransactionManagerImpl.java:1071)
	at weblogic.transaction.internal.TransactionManagerImpl.wakeUp(TransactionManagerImpl.java:1805)
	at weblogic.transaction.internal.ServerTransactionManagerImpl.wakeUp(ServerTransactionManagerImpl.java:988)
	at weblogic.transaction.internal.WLSTimer.trigger(WLSTimer.java:31)
	at weblogic.time.common.internal.ScheduledTrigger.run(ScheduledTrigger.java:243)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
	at weblogic.time.common.internal.ScheduledTrigger.executeLocally(ScheduledTrigger.java:229)
	at weblogic.time.common.internal.ScheduledTrigger.execute(ScheduledTrigger.java:223)
	... 2 more
在程序中运行都没有出错。这个TimedOutException:是执行时间超时的原理。要在哪里设置这个值？
问题的解决是在配置连接池的地方有一个高级设置：Click Hide展开后把连接持续时间设长一此。就可以了。