使用hibernate时报Cannot open connection,是什么原因?
使用hibernate时报Cannot open connection,是什么原因?
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java.lang.Exception: net.sf.hibernate.JDBCException: Cannot open connection
at com.sun.DAO.SunDAO.getChannelTypeList(SunDAO.java:65)
at com.sun.bo.SunEJB.queryChannelTypeList(SunEJB.java:36)
at com.sun.bo.Sun_a6ku9v_EOImpl.queryChannelTypeList(Sun_a6ku9v_EOImpl.java:46)
at com.sun.bo.Sun_a6ku9v_EOImpl_CBV.queryChannelTypeList(Unknown Source)
at Controller.begin(Controller.jpf:59)
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:324)
at com.bea.wlw.netui.pageflow.FlowController.invokeActionMethod(FlowController.java:1507)
at com.bea.wlw.netui.pageflow.FlowController.getActionMethodForward(FlowController.java:1433)
at com.bea.wlw.netui.pageflow.FlowController.internalExecute(FlowController.java:764)
at com.bea.wlw.netui.pageflow.PageFlowController.internalExecute(PageFlowController.java:211)
at com.bea.wlw.netui.pageflow.FlowController.execute(FlowController.java:594)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:650)
at com.bea.wlw.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:527)
at com.bea.wlw.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:152)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
at weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:318)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.superForward(PageFlowRequestProcessor.java:1301
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有谁知道,如何解决?3ks