Config.java

package com.test.wildflytransactions;

import java.util.Properties;

import javax.sql.DataSource;

import org.hibernate.engine.transaction.jta.platform.internal.JBossAppServerJtaPlatform;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.support.OpenEntityManagerInViewInterceptor;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.jta.JtaTransactionManager;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@EnableWebMvc
@EnableTransactionManagement
@ComponentScan
public class Config {

	@Bean
	public DataSource dataSource() {
		JndiDataSourceLookup dataSourceLookup = new JndiDataSourceLookup();
		return dataSourceLookup.getDataSource("java:jboss/datasources/springdemo");
	}

	@Bean
	public JtaTransactionManager transactionManager() {
		return new JtaTransactionManager();
	}

	@Bean
	public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
		LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
		em.setJtaDataSource(dataSource());
		em.setPackagesToScan(new String[] { "com.test.wildflytransactions" });
		HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
		vendorAdapter.setShowSql(true);
		vendorAdapter.setGenerateDdl(true);
		em.setJpaVendorAdapter(vendorAdapter);
		em.setJpaProperties(additionalProperties());
		return em;
	}

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

	Properties additionalProperties() {
		Properties properties = new Properties();
		properties.put("hibernate.transaction.jta.platform",
				JBossAppServerJtaPlatform.class.getName());
		return properties;
	}

	@Configuration
	protected static class JpaWebConfiguration extends WebMvcConfigurerAdapter {

		@Override
		public void addInterceptors(InterceptorRegistry registry) {
			registry.addWebRequestInterceptor(openEntityManagerInViewInterceptor());
		}

		@Bean
		public OpenEntityManagerInViewInterceptor openEntityManagerInViewInterceptor() {
			return new OpenEntityManagerInViewInterceptor();
		}

	}

}