Don't know the specific answer to your question regarding a true deserialization "problem" with String arrays, but I've been using the following Java client code as a work-around to this exact problem, and it seems to work okay for us:
try {
String endpointURL = "http://localhost:8080/axis/services/yourServiceName";
Service service = new Service();
Call call = (Call) service.createCall();
call.setTargetEndpointAddress( new java.net.URL(endpointURL) );
call.setOperationName( new QName("yourServiceClass", "yourMethod") );
call.addParameter("inputParam", XMLType.XSD_STRING, ParameterMode.IN);
call.setReturnType( XMLType.XSD_ANY );
String[] ret = (String[]) call.invoke( new Object[] { "value" } );
} catch (Exception e) {
System.err.println(e.toString());
}
The thing to key in on here is the XMLType.XSD_ANY value in the setReturnType method. As I said, I don't know if this is the BEST way to approach this, but as a last-ditch, stop-gap measure, it may work for you.
Nicholas (Nick) Remy
| Ray Kramp <[EMAIL PROTECTED]>
03/05/2004 06:02 PM
|
|
Hi Axis users,
I was wondering if someone might know the solution to a deserialization problem
that I'm experiencing when returning a Java String array type in a response
from a service method.
My service is deployed to Axis 1.1 and it's invoked using client stubs
generated with Axis WSDL2Java. I'm able to pass string arrays in requests, but
when I return a string array I encounter this exception:
org.xml.sax.SAXException: Bad types
(class [Ljava.lang.Object; -> class java.lang.String)
at org.apache.axis.message.RPCHandler.onStartChild
(RPCHandler.java:311)
at org.apache.axis.encoding.DeserializationContextImpl.startElement
(DeserializationContextImpl.java:963)
For example, here's a test class that I've deployed to Axis:
package arraytest;
public class Test {
public String[] method() {
return new String [] {"a", "b", "c"};
}
}
My wsdd file is defined as:
<?xml version="1.0" encoding="UTF-8"?>
<deployment
xmlns="http://xml.apache.org/axis/wsdd/"
xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
<service name="TestService" provider="java:RPC">
<parameter name="allowedMethods" value="method"/>
<parameter name="scope" value="request"/>
<parameter name="className" value="arraytest.Test"/>
<typeMapping
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
type="java:java.lang.String[]"
qname="ns1:ArrayOfString"
xmlns:ns1="urn:java.lang"/>
</service>
</deployment>
Is there a problem with the type mapping that I've created? My client is using
stub classes generated with Axis WSDL2Java. The code which makes the call was
generated as:
public java.lang.String[] method() throws java.rmi.RemoteException {
if (super.cachedEndpoint== null) {
throw new org.apache.axis.NoEndPointException();
}
org.apache.axis.client.Call _call = createCall();
_call.setOperation(_operations[0]);
_call.setUseSOAPAction(true);
_call.setSOAPActionURI("");
_call.setSOAPVersion
(org.apache.axis.soap.SOAPConstants.SOAP11_CONSTANTS);
_call.setOperationName(new javax.xml.namespace.QName
("http://arraytest", "method"));
setRequestHeaders(_call);
setAttachments(_call);
java.lang.Object _resp = _call.invoke(new java.lang.Object[] {});
if (_resp instanceof java.rmi.RemoteException) {
throw (java.rmi.RemoteException)_resp;
}
else {
extractAttachments(_call);
try {
return (java.lang.String[]) _resp;
} catch (java.lang.Exception _exception) {
return (java.lang.String[])
org.apache.axis.utils.JavaUtils.convert(
_resp, java.lang.String.class);
}
}
}
Here's my wsdl document:
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions
targetNamespace="http://localhost:18080/axis/services/TestService"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:apachesoap="http://xml.apache.org/xml-soap"
xmlns:impl="http://localhost:18080/axis/services/TestService"
xmlns:intf="http://localhost:18080/axis/services/TestService"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:tns1="urn:java.lang"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:types>
<schema
targetNamespace="urn:java.lang"
xmlns="http://www.w3.org/2001/XMLSchema">
<import
namespace="http://schemas.xmlsoap.org/soap/encoding/" />
<complexType
name="ArrayOfString">
<complexContent>
<restriction
base="soapenc:Array">
<attribute
ref="soapenc:arrayType"
wsdl:arrayType="xsd:string[]" />
</restriction>
</complexContent>
</complexType>
</schema>
</wsdl:types>
<wsdl:message
name="methodResponse">
<wsdl:part
name="methodReturn"
type="tns1:ArrayOfString" />
</wsdl:message>
<wsdl:message
name="methodRequest">
</wsdl:message>
<wsdl:portType
name="Test">
<wsdl:operation
name="method">
<wsdl:input
message="impl:methodRequest"
name="methodRequest" />
<wsdl:output
message="impl:methodResponse"
name="methodResponse" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding
name="TestServiceSoapBinding"
type="impl:Test">
<wsdlsoap:binding
style="rpc"
transport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operation
name="method">
<wsdlsoap:operation
soapAction="" />
<wsdl:input
name="methodRequest">
<wsdlsoap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="http://arraytest"
use="encoded" />
</wsdl:input>
<wsdl:output
name="methodResponse">
<wsdlsoap:body
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="http://localhost:18080/axis/services/TestService"
use="encoded" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service
name="TestService">
<wsdl:port
binding="impl:TestServiceSoapBinding"
name="TestService">
<wsdlsoap:address
location="http://localhost:18080/axis/services/TestService" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Thanks in advance!
Ray
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