Hibernate error: failed to lazily Initialize a Collection

xiaoxiao2021-03-06  17

Detailed error:

Net.sf.hibernate.lazyInitializationException: failed to lazily initialize a collection - no session or session WAS Closed

Net.sf.hibernate.collection.PersistentCollection.initialize (PersistentCollection.java: 209)

Net.sf.hibernate.collection.PersistentCollection.read (personistentCollection.java: 71)

Net.sf.hibernate.collection.bag.isempty (Bag.java:240)

Org.apache.struts.taglib.logic.emptytag.condition (Emptytag.java: 134)

Org.apache.struts.taglib.logic.notemptytag.condition (Notemptytag.java: 94)

Org.apache.struts.taglib.logic.conditionaltagbase.dostarttag (conditionaltagbase.java: 218)

Org.apache.jsp.base.scale.scaleEdit_Jsp._JspService (ScaleEdit_jsp.java: 256)

Org.apache.jasper.Runtime.httpjspBase.Service (httpjspbase.java: 133)

Javax.servlet.http.httpservlet.service (httpservlet.java: 856)

Org.apache.jasper.Servlet.jspservletWrapper.Service (jspservletwrapper.java: 311)

Org.apache.jasper.servlet.jspservlet.ServiceJspfile (jspservlet.java: 301)

Org.apache.jasper.servlet.jspservlet.Service (jspservlet.java: 248)

Javax.servlet.http.httpservlet.service (httpservlet.java: 856)

Org.apache.struts.Action.RequestProcessor.doforward (RequestProcessor.java:1069)

Org.apache.struts.Action.RequestProcessor.ProcessForwardConfig (RequestProcessor.java: 455)

Org.apache.struts.action.RequestProcessor.Process (RequestProcessor.java: 279)

Org.apache.struts.Action.ActionServlet.Process (ActionServlet.java: 1482)

Org.apache.struts.Action.ActionServlet.doget (ActionServlet.java: 507)

Javax.Servlet.http.httpservlet.service (httpservlet.java: 743)

Javax.servlet.http.httpservlet.service (httpservlet.java: 856)

Org.apache.filters.SetCharacterencodingfilter.dofilter (setcharacterencodingfilter.java: 169)

Find cause and solution ing ...........

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