初学hibernate，问问关于下面的异常，如何定位问题出现在那里？非常感谢
com.adtec.moia.exception.DaoException: No row with the given identifier exists: 0, of class: com.adtec.moia.entity.Menu
at com.adtec.moia.dao.hibernate.HibernateProxyImpl.load(HibernateProxyImpl.java:99)
at com.adtec.moia.dao.hibernate.MenuDaoHibernate.getMenuById(MenuDaoHibernate.java:63)
at com.adtec.moia.web.ShowMenuBarAction.execute(ShowMenuBarAction.java:70)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
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$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.adtec.moia.filter.HibernateSessionFilter.doFilter(HibernateSessionFilter.java:42)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.adtec.moia.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:62)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.adtec.moia.filter.LoggerFilter.doFilter(LoggerFilter.java:109)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at com.adtec.moia.filter.PermissionFilter.doFilter(PermissionFilter.java:93)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.WebAppServletContext$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)
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