You must define a <wsdl:message> for your request message, even if you
have no arguments. In that case, you just define an empty message,
e.g.,
<wsdl:message name="GetCategoriesRequest"/>
Anne
On 8/1/06, Simon West <[EMAIL PROTECTED]> wrote:
Hello,
i build my first webservice and i got a big problem. I modified the
\samples\wsdl\perf.wsdl. I want to make a method which has no arguments an
retrieves an list of strings. I generated the classes and deployed the service.
Now the problem is that i cant invoke my method. I get this exception:
public static void main(String[] args) {
try {
ProductStub ps = new ProductStub();
ps.GetCategories();
} catch (Exception e) {
e.printStackTrace();
}
}
produces
java.lang.NullPointerException
at
org.apache.axis2.context.MessageContext.setEnvelope(MessageContext.java:681)
at
testclient.org.apache.axis2.ProductStub.GetCategories(ProductStub.java:109)
at testclient.ProductTest.main(ProductTest.java:14)
But i have already implemented the server side as:
public class ProductSkeleton {
public org.example.www.product.Categories GetCategories()
{
Categories c = new Categories();
c.addCategory("hello");
c.addCategory("cya");
return c;
}
}
The wsdl is a little bit longer but maybe helpfull:
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/";
xmlns:tns="http://www.example.org/Product/";
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; name="Product"
targetNamespace="http://www.example.org/Product/";>
<wsdl:types>
<xsd:schema targetNamespace="http://www.example.org/Product/";>
<xsd:element name="Categories">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="Category"
type="xsd:string"
minOccurs="1"
maxOccurs="unbounded">
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</wsdl:types>
<wsdl:message name="GetCategoriesResponse">
<wsdl:part element="tns:Categories"
name="GetCategoriesResponse" />
</wsdl:message>
<wsdl:portType name="Product">
<wsdl:operation name="GetCategories">
<wsdl:input message="tns:GetCategoriesRequest" />
<wsdl:output message="tns:GetCategoriesResponse" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="ProductSOAP" type="tns:Product">
<soap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"; />
<wsdl:operation name="GetCategories">
<soap:operation
soapAction="http://www.example.org/Product/GetCategories"; />
<wsdl:input>
<soap:body parts="GetCategoriesRequest"
use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body parts="GetCategoriesResponse"
use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="Product">
<wsdl:port binding="tns:ProductSOAP" name="ProductSOAP">
<soap:address location="http://www.example.org/"; />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Maybe someone can help me how to invoke this method?
Best regards
Simon
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