Accessing web services using JAX-WS:-
Spring provides two factory beans to create JAX-WS web service proxies, namely
LocalJaxWsServiceFactoryBean and JaxWsPortProxyFactoryBean. The
former can only return a JAX-WS service class for us to work with. The latter is
the full-fledged version that can return a proxy that implements our business
service interface. In this example we use the latter to create a proxy for the
AccountService endpoint .
<bean id="dataWebService" class="org.springframework.remoting.jaxws.JaxWsPortProxyFactoryBean">
<property name="serviceInterface" value="r4r.in.DataService"/>
<property name="wsdlDocumentUrl" value="http://localhost:8888/DataServiceEndpoint?WSDL"/>
<property name="namespaceUri" value="http://example/"/>
<property name="serviceName" value="DataService"/>
<property name="portName" value="DataServiceEndpointPort"/>
</bean>
Where serviceInterface is our business interface the clients will use.
wsdlDocumentUrl is the URL for the WSDL file. Spring needs this a startup
time to create the JAX-WS Service. namespaceUri corresponds to the
targetNamespace in the .wsdl file. serviceName corresponds to the service
name in the .wsdl file. portName corresponds to the port name in the .wsdl
file.
Accessing the web service is now very easy as we have a bean factory for it that
will expose it as AccountService interface. We can wire this up in Spring:
<bean id="client" class="r4r.in.dataClientImpl">
...
<property name="service" ref="dataWebService"/>
</bean>
From the client code we can access the web service just as if it was a normal class:
public class DataClientImpl {
private DataService service;
public void setService(DataService service) {
this.service = service;
}
public void show() {
service.insertData(...);
}}