我重新回到了Java世界，我试图用JPA，Hibernate和PostgreSQL配置一个新的Spring web应用程序。
我找到了很多具有各种XML配置文件的旧例子，我想知道是否有一种首选的新方法来执行此配置而不依赖于XML文件创作。
有些我需要配置的东西是hibernate的sql语言，驱动程序等。 解决方案
将以下片段放入注释类使用 @Configuration 和 @EnableTransactionManagement
Hibernate / JPA （编辑packagesToScan字符串）：
@Bean LocalContainerEntityManagerFactoryBean entityManagerFactory（）{ LocalContainerEntityManagerFactoryBean em =新的LocalContainerEntityManagerFactoryBean（）; em.setDataSource（dataSource（））; em.setPackagesToScan（new String [] {com.XY.model}）; JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter（）; em.setJpaVendorAdapter（vendorAdapter）; em.setJpaProperties（additionalProperties（））; 返回em; 属性additionalProperties（）{属性properties = new Properties（）; properties.setProperty（hibernate.hbm2ddl.auto，update）; properties.setProperty（hibernate.dialect，org.hibernate.dialect.PostgreSQL9Dialect）; properties.setProperty（hibernate.show_sql，true）; 返回属性; $ / code>数据源（编辑用户名，密码和主机地址）：
@Bean public DataSource dataSource（）{ DriverManagerDataSource dataSource = new DriverManagerDataSource（）; dataSource.setDriverClassName（org.postgresql.Driver）; dataSource.setUrl（jdbc：postgresql：// localhost：port / DB_NAME）; dataSource.setUsername（root）; dataSource.setPassword（）; 返回dataSource; $ b $ p $ bpre> @Bean public PlatformTransactionManager transactionManager（EntityManagerFactory emf）{ JpaTransactionManager transactionManager = new JpaTransactionManager（）; transactionManager.setEntityManagerFactory（emf）; 返回transactionManager; }
I'm getting back into the Java world, and I'm trying to configure a new Spring web application with JPA, Hibernate and PostgreSQL.
I have found a lot of older examples with various XML configuration files, and I'm wondering if there is a preferred new way to perform this configuration without relying on XML file authoring.
Some of the things I need to configure are the hibernate sql dialect, driver, etc.
解决方案Put the following fragments into a class annotated with @Configuration and @EnableTransactionManagement
Hibernate/JPA (edit the packagesToScan String):
@Bean public LocalContainerEntityManagerFactoryBean entityManagerFactory() { LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean(); em.setDataSource(dataSource()); em.setPackagesToScan(new String[] { "com.XY.model" }); JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter(); em.setJpaVendorAdapter(vendorAdapter); em.setJpaProperties(additionalProperties()); return em; } Properties additionalProperties() { Properties properties = new Properties(); properties.setProperty("hibernate.hbm2ddl.auto", "update"); properties.setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQL9Dialect"); properties.setProperty("hibernate.show_sql", "true"); return properties; }DataSource (edit username, password and host address):
@Bean public DataSource dataSource() { DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName("org.postgresql.Driver"); dataSource.setUrl("jdbc:postgresql://localhost:port/DB_NAME"); dataSource.setUsername("root"); dataSource.setPassword(""); return dataSource; }Transaction Manager:
@Bean public PlatformTransactionManager transactionManager(EntityManagerFactory emf) { JpaTransactionManager transactionManager = new JpaTransactionManager(); transactionManager.setEntityManagerFactory(emf); return transactionManager; }
更多推荐
不使用XML配置JPA / Hibernate / PostgreSQL
发布评论