求助ORACLE 中保存clob类型出现如下错误，我用的weblogic 8.1

java.lang.RuntimeException: Failed to setAutoCommit to true for pool connection.
at weblogic.jdbc.wrapper.PoolConnection.init(Lweblogic/jdbc/common/internal/ConnectionEnv;)V(PoolConnection.java:52)
at weblogic.jdbc.common.internal.RmiDataSource.getPoolConnectionObj(Lweblogic/jdbc/common/internal/ConnectionEnv;)Ljava/sql/Connection;(RmiDataSource.java:353)
at weblogic.jdbc.common.internal.RmiDataSource.getPoolConnection()Ljava/sql/Connection;(RmiDataSource.java:319)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection()Ljava/sql/Connection;(RmiDataSource.java:334)
at com.ursa.j2ee.J2eeDataSource.getConnection()Ljava/sql/Connection;(J2eeDataSource.java:121)
at com.ursa.acf.component.datasource.impl.StrutsDSManager.getConnection(Ljava/lang/String;)Ljava/sql/Connection;(StrutsDSManager.java:102)
at com.ursa.acf.component.datasource.DatabaseHelper.getConnection(Ljava/lang/String;)Ljava/sql/Connection;(DatabaseHelper.java:40)
at com.ursa.acf.plugins.form.ursaimpl.ele.base.ListTableEle.getOrders()[Ljava/util/HashMap;(ListTableEle.java:846)
at com.ursa.acf.plugins.form.ursaimpl.ele.base.ListTableEle.setTableOrder(Lcom/ursa/acf/core/bizlogic/mammoth/smp/table/ursa/UrsaListTable;Ljavax/servlet/ServletRequest;)V(ListTableEle.java:2280)
at com.ursa.acf.plugins.form.ursaimpl.ele.base.ListTableEle.out(Ljavax/servlet/jsp/JspWriter;Ljava/lang/Object;Ljava/util/HashMap;Lcom/ursa/acf/plugins/sessionuser/SessionUser;ILjavax/servlet/ServletRequest;)V(ListTableEle.java:3713)
at com.ursa.acf.plugins.form.tag.BullHeadFormTag.doEndTag()I(BullHeadFormTag.java:110)
at jsp_servlet._taxispage._rswjgl.__form._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(form.jsp:29)
at weblogic.servlet.jsp.JspBase.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V(JspBase.java:33)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run()Ljava/lang/Object;(ServletStubImpl.java:1072)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Lweblogic/servlet/internal/FilterChainImpl;)V(ServletStubImpl.java:465)
at weblogic.servlet.internal.TailFilter.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/FilterChain;)V(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V(FilterChainImpl.java:27)
at com.ursa.acf.core.EncodingFilter.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/FilterChain;)V(EncodingFilter.java:46)
at weblogic.servlet.internal.FilterChainImpl.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V(FilterChainImpl.java:27)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V(RequestDispatcherImpl.java:326)
at org.apache.struts.action.RequestProcessor.doForward(Ljava/lang/String;Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(RequestProcessor.java:1063)
at org.apache.struts.tiles.TilesRequestProcessor.doForward(Ljava/lang/String;Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(TilesRequestProcessor.java:263)
at org.apache.struts.action.RequestProcessor.processForwardConfig(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Lorg/apache/struts/config/ForwardConfig;)V(RequestProcessor.java:386)
at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;Lorg/apache/struts/config/ForwardConfig;)V(TilesRequestProcessor.java:318)
at org.apache.struts.action.RequestProcessor.process(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(RequestProcessor.java:229)
at org.apache.struts.action.ActionServlet.process(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doGet(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)V(HttpServlet.java:802)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run()Ljava/lang/Object;(ServletStubImpl.java:1072)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Lweblogic/servlet/internal/FilterChainImpl;)V(ServletStubImpl.java:465)
at weblogic.servlet.internal.TailFilter.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/FilterChain;)V(TailFilter.java:28)