[Axis2] Paramètre d'une méthode toujours null

**Neikeur** · 02/01/2010, 23h58

Bonsoir à tous,

je sèche depuis un petit moment sur un problème récurent au niveau de la consommation de mon WS. La méthode que j'ai suivie pour l'implémenter :
- Définition d'une classe JAVA de service

Code :

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    public Long getPages();
    public Item[] getItems(Long page);

- Génération du WEB Service associé avec axis, le tout sous netbeans

Code :

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<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:axis2="http://impl/services/conception/edu/" xmlns:ns1="http://impl/services/conception/edu/xsd" xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:ns0="http://domain.conception.edu/xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" targetNamespace="http://impl/services/conception/edu/">
    <wsdl:types>
        <xs:schema xmlns:ax21="http://domain.conception.edu/xsd" attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://domain.conception.edu/xsd">
            <xs:complexType name="Item">
                <xs:sequence>
                    <xs:element maxOccurs="unbounded" minOccurs="0" name="features" nillable="true" type="xs:string"/>
                    <xs:element minOccurs="0" name="id" nillable="true" type="xs:string"/>
                    <xs:element minOccurs="0" name="image" nillable="true" type="xs:string"/>
                    <xs:element minOccurs="0" name="price" nillable="true" type="xs:string"/>
                    <xs:element minOccurs="0" name="salesRank" type="xs:float"/>
                    <xs:element minOccurs="0" name="stock" type="xs:int"/>
                    <xs:element minOccurs="0" name="title" nillable="true" type="xs:string"/>
                </xs:sequence>
            </xs:complexType>
        </xs:schema>
        <xs:schema xmlns:ns="http://impl/services/conception/edu/xsd" attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="http://impl/services/conception/edu/xsd">
            <xs:element name="getItems">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element minOccurs="0" name="page" type="xs:long"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="getItemsResponse">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element maxOccurs="unbounded" minOccurs="0" name="return" nillable="true" type="ns0:Item"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="getPagesResponse">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element minOccurs="0" name="return" type="xs:long"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
        </xs:schema>
    </wsdl:types>
    <wsdl:message name="getPagesRequest"/>
    <wsdl:message name="getPagesResponse">
        <wsdl:part name="parameters" element="ns1:getPagesResponse"/>
    </wsdl:message>
    <wsdl:message name="getItemsRequest">
        <wsdl:part name="parameters" element="ns1:getItems"/>
    </wsdl:message>
    <wsdl:message name="getItemsResponse">
        <wsdl:part name="parameters" element="ns1:getItemsResponse"/>
    </wsdl:message>
    <wsdl:portType name="ItemFacadeImplPortType">
        <wsdl:operation name="getPages">
            <wsdl:input message="axis2:getPagesRequest" wsaw:Action="urn:getPages"/>
            <wsdl:output message="axis2:getPagesResponse" wsaw:Action="urn:getPagesResponse"/>
        </wsdl:operation>
        <wsdl:operation name="getItems">
            <wsdl:input message="axis2:getItemsRequest" wsaw:Action="urn:getItems"/>
            <wsdl:output message="axis2:getItemsResponse" wsaw:Action="urn:getItemsResponse"/>
        </wsdl:operation>
    </wsdl:portType>
    <wsdl:binding name="ItemFacadeImplSOAP11Binding" type="axis2:ItemFacadeImplPortType">
        <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
        <wsdl:operation name="getPages">
            <soap:operation soapAction="urn:getPages" style="document"/>
            <wsdl:input>
                <soap:body use="literal"/>
            </wsdl:input>
            <wsdl:output>
                <soap:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
        <wsdl:operation name="getItems">
            <soap:operation soapAction="urn:getItems" style="document"/>
            <wsdl:input>
                <soap:body use="literal"/>
            </wsdl:input>
            <wsdl:output>
                <soap:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
    </wsdl:binding>
    <wsdl:binding name="ItemFacadeImplSOAP12Binding" type="axis2:ItemFacadeImplPortType">
        <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
        <wsdl:operation name="getPages">
            <soap12:operation soapAction="urn:getPages" style="document"/>
            <wsdl:input>
                <soap12:body use="literal"/>
            </wsdl:input>
            <wsdl:output>
                <soap12:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
        <wsdl:operation name="getItems">
            <soap12:operation soapAction="urn:getItems" style="document"/>
            <wsdl:input>
                <soap12:body use="literal"/>
            </wsdl:input>
            <wsdl:output>
                <soap12:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
    </wsdl:binding>
    <wsdl:binding name="ItemFacadeImplHttpBinding" type="axis2:ItemFacadeImplPortType">
        <http:binding verb="POST"/>
        <wsdl:operation name="getPages">
            <http:operation location="ItemFacadeImpl/getPages"/>
            <wsdl:input>
                <mime:content type="text/xml" part="getPages"/>
            </wsdl:input>
            <wsdl:output>
                <mime:content type="text/xml" part="getPages"/>
            </wsdl:output>
        </wsdl:operation>
        <wsdl:operation name="getItems">
            <http:operation location="ItemFacadeImpl/getItems"/>
            <wsdl:input>
                <mime:content type="text/xml" part="getItems"/>
            </wsdl:input>
            <wsdl:output>
                <mime:content type="text/xml" part="getItems"/>
            </wsdl:output>
        </wsdl:operation>
    </wsdl:binding>
    <wsdl:service name="ItemFacadeImpl">
        <wsdl:port name="ItemFacadeImplSOAP11port_http" binding="axis2:ItemFacadeImplSOAP11Binding">
            <soap:address location="http://localhost:8080/axis2/services/ItemFacadeImpl"/>
        </wsdl:port>
        <wsdl:port name="ItemFacadeImplSOAP12port_http" binding="axis2:ItemFacadeImplSOAP12Binding">
            <soap12:address location="http://localhost:8080/axis2/services/ItemFacadeImpl"/>
        </wsdl:port>
        <wsdl:port name="ItemFacadeImplHttpport" binding="axis2:ItemFacadeImplHttpBinding">
            <http:address location="http://localhost:8080/axis2/services/ItemFacadeImpl"/>
        </wsdl:port>
    </wsdl:service>
</wsdl:definitions>

J'ai écris un petit client qui appel les méthodes. Aucun problème tant que je n'utilise pas de paramètre : getItems(Long page) déclenche un exception parce que le paramètre est toujours null !

Que ce soit mon client ou l'outil de test du webservice de netbeans, Axis génère toujours cette erreur

Code :

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[ERROR] Exception occurred while trying to invoke service method getItems
java.lang.reflect.InvocationTargetException
	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:597)
	at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
	at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
	at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
	at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)
	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
	at org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUtil.java:135)
	at org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUtil.java:130)
	at org.apache.axis2.transport.http.HTTPWorker.service(HTTPWorker.java:245)
	at org.apache.axis2.transport.http.server.AxisHttpService.doService(AxisHttpService.java:281)
	at org.apache.axis2.transport.http.server.AxisHttpService.handleRequest(AxisHttpService.java:187)
	at org.apache.axis2.transport.http.server.HttpServiceProcessor.run(HttpServiceProcessor.java:82)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.RuntimeException
	at edu.conception.services.impl.ItemFacadeImpl.getItems(ItemFacadeImpl.java:102)
	... 18 more
Caused by: java.lang.NullPointerException
	at edu.conception.services.impl.ItemFacadeImpl.getItems(ItemFacadeImpl.java:65)
	... 18 more
[ERROR] Exception occurred while trying to invoke service method getItems
org.apache.axis2.AxisFault: Exception occurred while trying to invoke service method getItems
	at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:158)
	at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
	at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)
	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
	at org.apache.axis2.transport.http.util.RESTUtil.invokeAxisEngine(RESTUtil.java:135)
	at org.apache.axis2.transport.http.util.RESTUtil.processURLRequest(RESTUtil.java:130)
	at org.apache.axis2.transport.http.HTTPWorker.service(HTTPWorker.java:245)
	at org.apache.axis2.transport.http.server.AxisHttpService.doService(AxisHttpService.java:281)
	at org.apache.axis2.transport.http.server.AxisHttpService.handleRequest(AxisHttpService.java:187)
	at org.apache.axis2.transport.http.server.HttpServiceProcessor.run(HttpServiceProcessor.java:82)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.reflect.InvocationTargetException
	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:597)
	at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
	at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
	... 12 more
Caused by: java.lang.RuntimeException
	at edu.conception.services.impl.ItemFacadeImpl.getItems(ItemFacadeImpl.java:102)
	... 18 more
Caused by: java.lang.NullPointerException
	at edu.conception.services.impl.ItemFacadeImpl.getItems(ItemFacadeImpl.java:65)
	... 18 more

Si quelqu'un pouvait éclairer ma lenterne...

[Axis2] Paramètre d'une méthode toujours null

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