Java tutorial
package com.chortitzer.web.usi; /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ import javax.sql.DataSource; import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.jpa.repository.config.EnableJpaRepositories; import org.springframework.orm.jpa.JpaTransactionManager; import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean; import org.springframework.transaction.PlatformTransactionManager; import org.springframework.transaction.annotation.EnableTransactionManagement; @Configuration @EnableTransactionManagement @EnableJpaRepositories(entityManagerFactoryRef = "usiEntityManagerFactory", transactionManagerRef = "usiTransactionManager", basePackages = { "com.chortitzer.web.usi" }) public class RepositoryConfig_usi { @Bean @ConfigurationProperties(prefix = "usi.datasource") public DataSource dataSource_usi() { DataSource ds = DataSourceBuilder.create().build(); return ds; } @Bean public LocalContainerEntityManagerFactoryBean usiEntityManagerFactory(EntityManagerFactoryBuilder builder) { return builder.dataSource(dataSource_usi()).packages("com.chortitzer.web.usi.domain") .persistenceUnit("PU_usi").build(); } @Bean PlatformTransactionManager usiTransactionManager(EntityManagerFactoryBuilder factory) { return new JpaTransactionManager(usiEntityManagerFactory(factory).getObject()); } }