You can extend the WebServiceTemplate
or in a more easy way use a custom sender who extends Spring's
org.springframework.ws.transport.http.CommonsHttpMessageSender
and set in your bean definition
<bean id="vehicleQuotationWebServiceTemplate" class="org.springframework.ws.client.core.WebServiceTemplate">
<constructor-arg ref="messageFactory"/>
<property name="marshaller" ref="vehicleQuotationMarshaller" />
<property name="unmarshaller" ref="vehicleQuotationMarshaller" />
<property name="faultMessageResolver" ref="vehicleServiceClientFaultMessageResolver" />
<property name="defaultUri" value="http://localhost:8080/quote/endpoints"/>
<property name="messageSender">
<bean class="org.springframework.ws.transport.http.MyHttpComponentsMessageSender"/>
</property>
</bean>
take a look at Spring forums