Configuration of eclipselink + Spring MVC + MySql using Java Configuration (No XML configuration)

Question

The following configuration will enable Spring to use two application contexts (the root context and the web application context) and will configure most of the things you need.

@Configuration
@EnableTransactionManagement
@EnableMBeanExport
@EnableJpaRepositories("your.jpa.repositories.package")
@ComponentScan(basePackages = "gr.xe.payments", excludeFilters = {@ComponentScan.Filter(value = Controller.class), @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE ,value = MvcConfig.class)})
public class ApplicationConfig {


}

@EnableWebMvc
@ComponentScan(basePackages = "your.controller.package", includeFilters = @ComponentScan.Filter(value = Controller.class))
public class MvcConfig extends WebMvcConfigurerAdapter {

    @Bean
    public TilesConfigurer tilesViewResolver() {
        TilesConfigurer tilesViewResolver = new TilesConfigurer();
        tilesViewResolver.setDefinitions(new String[]{"/WEB-INF/tiles.xml"});
        return tilesViewResolver;
    }

    @Bean
    public UrlBasedViewResolver urlBasedViewResolver() {
        UrlBasedViewResolver urlBasedViewResolver = new UrlBasedViewResolver();
        urlBasedViewResolver.setViewClass(TilesView.class);
        return urlBasedViewResolver;
    }

    @Bean(name = "messageSource")
    public ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource() {
        ReloadableResourceBundleMessageSource reloadableResourceBundleMessageSource = new ReloadableResourceBundleMessageSource();
        reloadableResourceBundleMessageSource.setBasename("WEB-INF/i18n/messages");
        reloadableResourceBundleMessageSource.setFallbackToSystemLocale(false);
        reloadableResourceBundleMessageSource.setDefaultEncoding("UTF-8");
        return reloadableResourceBundleMessageSource;
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }
}



@Configuration
public class DatabaseConfig {


    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        EclipseLinkJpaVendorAdapter vendorAdapter = new EclipseLinkJpaVendorAdapter();
        vendorAdapter.setGenerateDdl(true);
        vendorAdapter.setShowSql(false);

        LocalContainerEntityManagerFactoryBean factory =
                new LocalContainerEntityManagerFactoryBean();
        factory.setJpaVendorAdapter(vendorAdapter);
        factory.setPackagesToScan("your.domain.package");
        factory.setDataSource(dataSource());
        factory.setJpaProperties(jpaProperties());
        return factory;
    }

    @Bean
    public JpaTransactionManager transactionManager() {
        JpaTransactionManager txManager = new JpaTransactionManager();
        txManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return txManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

    @Bean
    public DataSource dataSource() {
        //This uses JNDI, you could create the data source in any way you want
        try {
            Context initCtx = new InitialContext();
            Context envCtx = (Context) initCtx.lookup("java:comp/env");
            return (DataSource) envCtx.lookup("jdbc/yourDS");
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("Unable to lookup datasource", e);
        }
    }

    private Properties jpaProperties() {
        Properties properties = new Properties();
        //use whatever EclipseLink properties you like
        return properties;
    }
}

EDIT:

The relevant dependencies are

<properties>
    <spring.version>3.2.8.RELEASE</spring.version>
    <spring-security.version>3.1.3.RELEASE</spring-security.version>
</properties>   

<dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
        <exclusions>
            <!-- Exclude Commons Logging in favor of SLF4j -->
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
         <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${spring.version}</version>
    </dependency>


    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>1.2.0.RELEASE</version>
        <exclusions>
            <exclusion>
                <artifactId>slf4j-api</artifactId>
                <groupId>org.slf4j</groupId>
            </exclusion>
            <exclusion>
                <artifactId>jcl-over-slf4j</artifactId>
                <groupId>org.slf4j</groupId>
            </exclusion>
        </exclusions>
    </dependency>   

    <dependency>
        <groupId>org.eclipse.persistence</groupId>
        <artifactId>eclipselink</artifactId>
        <version>2.5.1</version>
    </dependency>