FrontPage/Axis/AxisSamples/AxisSamplesArraySerializer

This page was created to explain the using of ArrayDeserializer in Web Services.

Here is a sample for the definition of a Web Service with a method using Array of String.

A method String[] get4xHelloWorld() has been defined to return an array of String containing 4 string for a Hello World in 4 languages. The definition of the WSDD file seems to be correct, the client java file are correctly generated with the tool WSDL2Java from Axis, and the server returns a SOAP message coresponding to the answer to the request with the 4 languages in an array. But the client can't find a good deserializer.

If you have an answer for this problem, you can modified this page to identify the correct definition of this sample. NB : This seems not be a problem with the version of Axis or woth the Weblogic server.

Informations :

• - Server : BEA Weblogic 8.1 SP2 - Axis Server-Side : Axis 1.2 Beta2 - Axis Client-Side : Axis 1.2 Beta2

Thanks for the users of this sample.

WSDD-Server Definition

<service name="WSTester" provider="java:RPC" style="wrapped" >

• <namespace>http://myNamespace.com</namespace> <parameter name="className" value="...WebServiceImpl"/> <parameter name="allowedMethods" value="get4xHelloWorld"/>

  <typeMapping qname="myNSJava:ArrayOf_string"

  • type="java:java.lang.String[]"

    serializer="org.apache.axis.encoding.ser.ArraySerializerFactory" deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory" encodingStyle=""/>

</service>

WSDL File

<element name="get4xHelloWorld">

• <complexType/>

</element> ... <element name="get4xHelloWorldResponse">

• <complexType>

  • <sequence>

    • <element maxOccurs="unbounded" name="get4xHelloWorldReturn" type="xsd:string"/>

    </sequence>

  </complexType>

</element> ... <wsdl:message name="get4xHelloWorldRequest">

• <wsdl:part element="impl:get4xHelloWorld" name="parameters"/>

</wsdl:message> ... <wsdl:message name="get4xHelloWorldResponse">

• <wsdl:part element="impl:get4xHelloWorldResponse" name="parameters"/>

</wsdl:message> ... <wsdl:operation name="get4xHelloWorld">

• <wsdl:input message="impl:get4xHelloWorldRequest" name="get4xHelloWorldRequest"/> <wsdl:output message="impl:get4xHelloWorldResponse" name="get4xHelloWorldResponse"/>

</wsdl:operation> ... <wsdl:operation name="get4xHelloWorld">

• <wsdlsoap:operation soapAction=""/> <wsdl:input name="get4xHelloWorldRequest">

  • <wsdlsoap:body namespace="http://myNamespace.com/service" use="literal"/>

  </wsdl:input> <wsdl:output name="get4xHelloWorldResponse">

  • <wsdlsoap:body namespace="http://myNamespace.com/service" use="literal"/>

  </wsdl:output>

</wsdl:operation>

SOAP RESPONSE MESSAGE

HTTP/1.1 200 OK Date: Thu, 03 Feb 2005 15:20:18 GMT Server: WebLogic Server 8.1 SP2 Fri Dec 5 15:01:51 PST 2003 316284 Content-Type: text/xml; charset=utf-8 Connection: Close <?xml version="1.0" encoding="utf-8"?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

• <soapenv:Header> </soapenv:Header> <soapenv:Body>

  • <get4xHelloWorldResponse xmlns="http://myNamespace.com/service">

    • <get4xHelloWorldReturn xsi:type="ns2:ArrayOfstring" xmlns:ns2="http://myNamespace.com/java">

      • <item xsi:type="xsd:string" xmlns="">Hello World</item> <item xsi:type="xsd:string" xmlns="">Bonjour Monde</item> <item xsi:type="xsd:string" xmlns="">Guten Tag Welt</item> <item xsi:type="xsd:string" xmlns="">Buongiorno Mondo</item>

      </get4xHelloWorldReturn>

    </get4xHelloWorldResponse>

  </soapenv:Body>

</soapenv:Envelope>

WSDD-Client Definition

<?xml version="1.0" encoding="UTF-8"?> <deployment name="wbsclient"

• xmlns="http://xml.apache.org/axis/wsdd/" xmlns:java="http://xml.apache.org/axis/wsdd/providers/java" xmlns:handler="http://xml.apache.org/axis/wsdd/providers/handler">

• <globalConfiguration> </globalConfiguration>

  <transport name="java" pivot="java:org.apache.axis.transport.java.JavaSender"/> <transport name="http" pivot="java:org.apache.axis.transport.http.HTTPSender">

  • <requestFlow> </requestFlow> <responseFlow> </responseFlow>

  </transport>

  <transport name="local" pivot="java:org.apache.axis.transport.local.LocalSender"/>

</deployment>

Error Message

AxisFault

• faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException faultSubcode: faultString: org.xml.sax.SAXException: Deserializing parameter 'get4xHelloWorldReturn': could not find deserializer for type {http://www.extranet.rtc.ch/java}ArrayOf_string faultActor: faultNode: faultDetail:

  • {http://xml.apache.org/axis/}stackTrace:org.xml.sax.SAXException: Deserializing parameter 'get4xHelloWorldReturn': could not find deserializer for type {http://www.extranet.rtc.ch/java}ArrayOf_string at org.apache.axis.message.RPCHandler.onStartChild(RPCHandler.java:269) at org.apache.axis.encoding.DeserializationContextImpl.startElement(DeserializationContextImpl.java:1001) at org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:159) at org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1050) at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:196) at org.apache.axis.message.RPCElement.getParams(RPCElement.java:310) at org.apache.axis.client.Call.invoke(Call.java:2381) at org.apache.axis.client.Call.invoke(Call.java:2280) at org.apache.axis.client.Call.invoke(Call.java:1741)