Spring java config EJB proxy not working

Question

I have a problem getting EJB beans working when using Spring's java config classes. Specifically I have the following that works:

@Configuration
@ComponentScan(basePackages = "com.company.web.config")
@ImportResource(value = {"classpath:spring-beans.xml"})
public class AppConfig {
}

@Configuration
@ComponentScan(basePackages = "com.company.web")
public class WebConfig extends WebMvcConfigurationSupport {
   // basic Spring MVC setup omitted
}

My spring-beans.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:jee="http://www.springframework.org/schema/jee"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd">

    <jee:local-slsb id="fooService" jndi-name="java:app/model/FooServiceBean!com.company.ejb.FooService"
      business-interface="com.company.ejb.FooService" />
</beans>

With this configuration, everything works, and I can do this:

@Controller
public class HomeController {
    private final FooService fooService;

    @Autowired
    public MyPageController(FooService fooService){
        this.fooService = fooService;
    }

    // request methods
}

Now i try to get rid of the XML file. According to the documentation the local-slsb should be equivalent

<bean id="fooService"
        class="org.springframework.ejb.access.LocalStatelessSessionProxyFactoryBean">
    <property name="jndiName" value="java:app/model/FooServiceBean!com.company.ejb.FooService"/>
    <property name="businessInterface" value="com.company.ejb.FooService"/>
</bean>

However, if I remove the @ImportResource from AppConfig and put this @Bean method instead, deployment fails because the Controller cannot be instantiated (no autowire candidates found for FooService):

@Bean
    public LocalStatelessSessionProxyFactoryBean fooService(){
        LocalStatelessSessionProxyFactoryBean factory = new LocalStatelessSessionProxyFactoryBean();
        factory.setBusinessInterface(FooService.class);
        factory.setJndiName("java:app/model/FooServiceBean!com.company.ejb.FooService");
        return factory;
    }

Any ideas why this doesn't work? I am using Spring version 4.0.2.

I already did? Deployment fails because it cannot instantiate my Controller. The exception says no autowire candidates were found for FooService. — Morten Jacobsen
– Morten Jacobsen, Commented Mar 3, 2014 at 8:54

Morten Jacobsen · Accepted Answer · 2014-03-10 12:57:21Z

It seems that the issue was related to the order in which configuration was read, and possibly double configuration loading.

Specifically, introducing a separate configuration class and importing it before WebConfig seems to do the trick, like so:

@Configuration
@Import({EJBConfig.class, WebConfig.class})
public class AppConfig {
}

@Configuration
public class EJBConfig {
    @Bean
    public LocalStatelessSessionProxyFactoryBean fooService(){
        LocalStatelessSessionProxyFactoryBean factory = new LocalStatelessSessionProxyFactoryBean();
        factory.setBusinessInterface(FooService.class);
        factory.setJndiName("java:app/model/FooServiceBean!com.company.ejb.FooService");
        return factory;
    }
}

@Configuration
@ComponentScan(basePackages = "com.company.web")
public class WebConfig extends WebMvcConfigurationSupport {
   // basic Spring MVC setup omitted
}

Collectives™ on Stack Overflow

Spring java config EJB proxy not working

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related