Continue: How WebServiceTemplate Look Like

So now we come down to the spring-ws which is relatively new to me. My goal is to access a SOAP web service and my plan is to create POJO requests and receive POJO responses by using the marshallSendAndReceive from WebServiceTemplate.

Here is how I define the beans in app2Context.xml.

<bean id="app2WebServiceTemplate" class="org.springframework.ws.client.core.WebServiceTemplate"> <property name="defaultUri" value="http://webservice-endpoint"> </property> <property name="marshaller"> <ref bean="castorMarshaller"></ref> </property> <property name="unmarshaller"> <ref bean="castorMarshaller"></ref> </property> </bean> <bean id="castorMarshaller" class="org.springframework.oxm.castor.CastorMarshaller"> <property name="mappingLocation" value="classpath:castorMapping.xml" /> </bean>

You can see I let CastorMarshaller to handle marshaling and unmarshaling, which I will talk about later.

Now I would show you how the code look like.

public App2Response app2m1(Param param) { App2Request request = new App2Request(param); App2Response response = app2WebServiceTemplate.marshalSendAndReceive(request, new Callback()); return response; } private class Callback implements WebServiceMessageCallback { @Override public void doWithMessage(WebServiceMessage message) throws IOException, TransformerException { SaajSoapMessage saajSoapMessage = (SaajSoapMessage)message; saajSoapMessage.getEnvelope().addNamespaceDeclaration(prefix, namespace); } }

You can see I create a WebServiceMessageCallback to handle the namespace, simply because I can't find a declarative way to get it into the SOAP XML request. If any of you know how, please let me know. Or you can confirm with me this is actually the right way to go.

This method is rather simple because I let CastorMarshaller mapping to do the heavy lifting.