NoSuchBeanDefinitionException with spring and gwt (requestFactory)

[collinm]

I get this error with a gwt (using requestfactory) and spring

    org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.calibra.server.service.AccountService] is defined: expected single bean but found 0: 
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:271)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1101)
	at org.calibra.server.SpringServiceLocator.getInstance(SpringServiceLocator.java:24)
	at com.google.web.bindery.requestfactory.server.LocatorServiceLayer.createServiceInstance(LocatorServiceLayer.java:56)

My service locator

    public class SpringServiceLocator implements ServiceLocator {
        @Override
        public Object getInstance(Class<?> clazz) {
            ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(                
                RequestFactoryServlet.getThreadLocalServletContext());
            return context.getBean(clazz);
        }
    }

My spring service

    @Service
    public class AccountServiceImpl implements AccountService{
         @Override
         public void addNewAccount(Account account) {
           ...
         }

         @Override
         public List<Account> loadAllAccounts() {
            ...
         }

    }

Gwt requestContext

    @Service(value=AccountService.class, locator=SpringServiceLocator.class)
    public interface AccountRequest extends RequestContext {
    
        Request<Void> addNewAccount(AccountProxy account);

        Request<List<AccountProxy>> loadAllAccounts();
   
    }

My web.xml

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<servlet>
    <servlet-name>gwtRequest</servlet-name>
    <servlet-class>com.google.web.bindery.requestfactory.server.RequestFactoryServlet</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>gwtRequest</servlet-name>
    <url-pattern>/gwtRequest</url-pattern>
</servlet-mapping>

<welcome-file-list>
    <welcome-file>welcomeGWT.html</welcome-file>
</welcome-file-list>

my dispatcher-servlet.xml

<context:annotation-config />
<context:component-scan base-package="com.calibra" />

I don't understand why i have 0 bean

Any idea?

[Marten Deinum]

There is nothing that is loading your dispatcher-servlet.xml. Your beans should all be loaded in the applicationContext.xml.

[collinm]

There is nothing that is loading your dispatcher-servlet.xml. Your beans should all be loaded in the applicationContext.xml.

I will need to add dispatcher-servlet.xml to my config, so i will have 2 servlet.

I saw this file: https://code.google.com/p/gwtcontact...EB-INF/web.xml

Don't know it's is the good way to do it. Will test it tonight.

[Marten Deinum]

That won't work either... You can only access beans loaded by the ContextLoaderListener you cannot access beans from servlet x loaded by servlet y. So as mentioned the beans must be loaded with the ContextLoaderListener.

[collinm]

That won't work either... You can only access beans loaded by the ContextLoaderListener you cannot access beans from servlet x loaded by servlet y. So as mentioned the beans must be loaded with the ContextLoaderListener.

ok, my dispatcher-servlet.xml is not loaded, so i need to add the contain of this file to applicationContext.xml ?

<context:annotation-config />
<context:component-scan base-package="com.calibra" />

and maybe will need to add

<bean id="accountService" class="org.calibra.server.service.AccountServiceIm pl"/>

[Marten Deinum]

You only need to component-scan (annotation-config is implied when using componet-scan). Component-scanning would be pretty useless if one would still need to configure the services explicitly.

[collinm]

You only need to component-scan (annotation-config is implied when using componet-scan). Component-scanning would be pretty useless if one would still need to configure the services explicitly.

ok thank, will try tonigh and give you the result.

[collinm]

i put

<context:component-scan base-package="com.calibra" />

in applicationContex.xml file, but i got the same error.

[collinm]

I posted all the source there: http://filebin.ca/CRE3HbzFunH

[Marten Deinum]

I'm not that familair with GWT but one thing I noticed is that you are trying to get the AccountServiceImpl whereas you should get the interface (due to proxy creation for instance).

Also make sure that everything is deployed correctly (you probably want to enable debug logging for spring to see which beans are registered at startup).