Integrating Spring and GWT

by Jelmer KuperusJune 4, 2006

I just completed my first shot at integrating Spring with GWT. You can check it out here

Here’s what you do to expose a simple service.

1) Write the remote service, note that the service no longer extends RemoteServiceServlet however HelloService should still implement RemoteService

public class HelloServiceImpl implements HelloService {
public String sayHello(String name) {
return "hello " + name;

2) Define this service in your application context

<bean id=”helloService” class=”nl.jteam.hello.server.HelloServiceImpl”/>

3) expose the bean as a gwt service

<bean id=”defaultHandlerMapping” class=”org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping”/>

<bean name=”/helloService” class=”nl.jteam.gwt.exporter.GwtInvokerServiceExporter”>
<property name=”service” ref=”helloService”/>
<property name=”serviceInterface” value=”nl.jteam.hello.client.HelloService”/>

4) Change the clientcode to point to your Spring service. be sure to use an absolute url while running in hosted mode or it will complain

helloService = (HelloServiceAsync) GWT.create(HelloService.class);
ServiceDefTarget endpoint = (ServiceDefTarget) helloService;

Feedback is appreciated