EJB, Spring Remoting, and Web Services - Spring Enterprise Recipes: A Problem Solution Approach - page 242

Now you can inject this manually written proxy into WeatherServiceClient and run it with the
Client main class.
Because your DAO class can extend JdbcDaoSupport to get a precreated JdbcTemplate instance,
your web service client can similarly extend the WebServiceGatewaySupport class to retrieve a
WebServiceTemplate instance without explicit injection. At this point, you can comment out
the webServiceTemplate variable and setter method.
package com.apress.springenterpriserecipes.weather;
...
import org.springframework.ws.client.core.support.WebServiceGatewaySupport;
public class WeatherServiceProxy extends WebServiceGatewaySupport
implements WeatherService {
public List<TemperatureInfo> getTemperatures(String city, List<Date> dates) {
...
// Invoke the remote web service
DocumentSource source = new DocumentSource(requestDocument);
DocumentResult result = new DocumentResult();
getWebServiceTemplate().sendSourceAndReceiveToResult(source, result);
...
}
}
However, without a WebServiceTemplate bean declared explicitly, you have to inject the default URI
to the proxy directly. The setter method for this property is inherited from the WebServiceGatewaySupport
class.
<beans ...>
...
<bean id="weatherServiceProxy"
class="com.apress.springenterpriserecipes.weather.WeatherServiceProxy">
<property name="defaultUri"
value=" http://localhost:8080/weather/services" />
</bean>
</beans>
5-12. Developing Web Services with XML Marshalling
Problem
To develop web services with the contract-first approach, you have to process request and response
XML messages. If you parse the XML messages with XML parsing APIs directly, you'll have to deal with
the XML elements one by one with low-level APIs, which is a cumbersome and inefficient task.
Solution
Spring-WS supports using XML marshalling technology to marshal/unmarshal objects to/from XML
documents. In this way, you can deal with object properties instead of XML elements. This technology is
also known as object/XML mapping (OXM) , because you are actually mapping objects to and from XML
documents.