Services Web: BeanSerializer

Question

Lorsqu'une telle erreur se produit?

<ERROR> <BeanSerializer> <serialize> <Exception:> 
java.io.IOException: Non nillable element 'standardHeader' is null. 
     at org.apache.axis.encoding.ser.BeanSerializer.serialize(BeanSerializer.java:215) 
     at org.apache.axis.encoding.SerializationContext.serializeActual(SerializationContext.java:1426) 
     at org.apache.axis.encoding.SerializationContext.serialize(SerializationContext.java:914) 
     at org.apache.axis.message.RPCParam.serialize(RPCParam.java:200) 
     at org.apache.axis.message.RPCElement.outputImpl(RPCElement.java:433) 
     at org.apache.axis.message.MessageElement.output(MessageElement.java:1208) 
     at org.apache.axis.message.SOAPBody.outputImpl(SOAPBody.java:139) 
     at org.apache.axis.message.SOAPEnvelope.outputImpl(SOAPEnvelope.java:477) 
     at org.apache.axis.message.MessageElement.output(MessageElement.java:1208) 
     at org.apache.axis.SOAPPart.writeTo(SOAPPart.java:315) 
     at org.apache.axis.SOAPPart.writeTo(SOAPPart.java:269) 
     at org.apache.axis.SOAPPart.saveChanges(SOAPPart.java:530) 
     at org.apache.axis.attachments.AttachmentsImpl.getAttachmentCount(AttachmentsImpl.java:519) 
     at org.apache.axis.Message.getContentType(Message.java:475) 
     at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:775) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:763) 
     at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) 
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) 
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) 
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283) 
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) 
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3231) 
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) 
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121) 
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2002) 
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1908) 
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1362) 
     at weblogic.work.ExecuteRequestAdapter.execute(ExecuteRequestAdapter.java:21) 
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:145) 
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:117) 

Answer 1

Chaque fois que l'élément standardHeader est réglé sur null, mais il est marqué comme nillable="false" dans le XSD.

Answer 2

Obtenez la même erreur lors de la création JAXWS Client:

2016-03-16 10:42:02 ERROR BeanSerializer:274 - Exception: 
java.io.IOException: Non nillable element 'createDate' is null. 
     at org.apache.axis.encoding.ser.BeanSerializer.serialize(BeanSerializer.java:215) 

donc j'ai étudié le contenu des classes JAXWS générés et trouvé:

elemField = new org.apache.axis.description.ElementDesc(); 
     elemField.setFieldName("createDate"); 
     elemField.setXmlName(new javax.xml.namespace.QName("", "createDate")); 
     elemField.setXmlType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string")); 
     elemField.setNillable(false); 
     typeDesc.addFieldDesc(elemField); 

La raison code

elemField.setNillable(false); 

est fourni XSD lors de la création du client JAXWS à partir de WSDL.

<xs:complexType name="AddEventRequestType"> 
    <xs:sequence> 
     <xs:element name="id" type="xs:int"/> 
     <xs:element name="createDate" type="xs:string"/> 

Answer 3

définir le champ élément minOccurs = 0 dans XSD,

elemField = new org.apache.axis.description.ElementDesc(); 
    elemField.setFieldName("createDate"); 
    elemField.setXmlName(new javax.xml.namespace.QName("", "createDate")); 
    elemField.setXmlType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string")); 
    elemField.setMinOccurs(0); //it's treated as null value 
    elemField.setNillable(false); 
    typeDesc.addFieldDesc(elemField);