Hi, all
I created a table with a primary key of auto-increment value.
but when excute doInsert(criteria), the following exception were thrown:
java.lang.NullPointerException
at org.apache.turbine.om.peer.BasePeer.doInsert(BasePeer.java:712)
at org.apache.turbine.om.peer.BasePeer.doInsert(BasePeer.java:615)
at com.vtradex.om.peer.LocalContentPeer.doInsert(LocalContentPeer.java:4
9)
at com.vtradex.businesslogic.item.ItemLogic.setItem(ItemLogic.java:70)
at com.vtradex.actions.ItemAction.doAdditem(ItemAction.java:61)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.turbine.util.velocity.VelocityActionEvent.doEvents(Velocit
yActionEvent.java:166)
at org.apache.turbine.util.velocity.VelocityActionEvent.perform(Velocity
ActionEvent.java:113)
at org.apache.turbine.modules.actions.VelocityAction.perform(VelocityAct
ion.java:116)
at org.apache.turbine.modules.ActionLoader.exec(ActionLoader.java:121)
at org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java
:149)
at org.apache.turbine.modules.Page.build(Page.java:92)
at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:122)
at org.apache.turbine.Turbine.doGet(Turbine.java:372)
at org.apache.turbine.Turbine.doPost(Turbine.java:459)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:4
at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:4
04)
at org.apache.tomcat.core.Handler.service(Handler.java:286)
at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372
)
at org.apache.tomcat.core.ContextManager.internalService(ContextManager.
java:799)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:745
)
at org.apache.tomcat.service.http.HttpConnectionHandler.processConnectio
n(HttpConnectionHandler.java:210)
at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:
407)
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java
:498)
at java.lang.Thread.run(Thread.java:484)
Error=Turbine.handleException: null
Error=An error occurred while rendering template layoutsnull:
null
Error=Turbine.handleException: null
Error=Turbine.handleException: null
Error=Turbine.handleException: null
Error=Turbine.handleException: null
Who can tell me why? and somtimes the values have been insert into the table, but the
same exception appears.
lvjin
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