如何在Spring Boot中使用Spring管理的Hibernate拦截器？ [英] How to use Spring managed Hibernate interceptors in Spring Boot?

问题描述

是否可以集成Spring管理的Hibernate拦截器（ http：/ /docs.jboss.org/hibernate/orm/4.3/manual/en-US/html/ch14.html ）在Spring Boot？

I' m使用Spring Data JPA和Spring Data REST，并且需要一个Hibernate拦截器来处理实体上特定字段的更新。

对于标准的JPA事件，不可能获取旧值，因此我认为我需要使用Hibernate拦截器。

解决方案

没有特别简单的添加方法一个Hibernate拦截器，它也是一个Spring Bean，但如果它完全由Hibernate管理，你可以轻松地添加一个拦截器。为此，请在 application.properties 中添加以下内容： .jpa.properties.hibernate.ejb.interceptor = my.package.MyInterceptorClassName

如果您需要拦截器也可以创建自己的 LocalContainerEntityManagerFactoryBean 。来自Spring Boot 1.1.4的 EntityManagerFactoryBuilder 对于属性的泛型有一点限制，因此您需要将其转换为（Map）
$ b

  @Bean 
 public LocalContainerEntityManagerFactoryBean entityManagerFactory（
 EntityManagerFactoryBuilder工厂，DataSource数据源，
 JpaProperties属性）{
 Map< String，Object> jpaProperties = new HashMap< String，Object>（）; 
 jpaProperties.putAll（properties.getHibernateProperties（dataSource））; 
 jpaProperties.put（hibernate.ejb.interceptor，hibernateInterceptor（））; 
 return factory.dataSource（dataSource）.packages（sample.data.jpa）
 .properties（（Map）jpaProperties）.build（）; 
 
 $ b @Bean 
 public EmptyInterceptor hibernateInterceptor（）{
 return new EmptyInterceptor（）{
 @Override 
 public boolean onLoad（Object实体，Serializable id，Object []状态，
 String [] propertyNames，Type []类型）{
 System.out.println（Loaded+ id）; 
返回false; 
} 
}; 
} 
  




Is it possible to integrate Spring managed Hibernate interceptors (http://docs.jboss.org/hibernate/orm/4.3/manual/en-US/html/ch14.html) in Spring Boot?

I'm using Spring Data JPA and Spring Data REST and need an Hibernate interceptor to act on an update of a particular field on an entity.

With standard JPA events it's not possible to get the old values, and hence I think I need to use the Hibernate interceptor.

解决方案

There's not a particularly easy way to add a Hibernate interceptor that is also a Spring Bean but you can easily add an interceptor if it's manged entirely by Hibernate. To do that add the following to your application.properties:

spring.jpa.properties.hibernate.ejb.interceptor=my.package.MyInterceptorClassName

If you need the Interceptor to also be a bean you can create your own LocalContainerEntityManagerFactoryBean. The EntityManagerFactoryBuilder from Spring Boot 1.1.4 is a little too restrictive with the generic of the properties so you need cast to (Map), we'll look at fixing that for 1.2.

@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(
        EntityManagerFactoryBuilder factory, DataSource dataSource,
        JpaProperties properties) {
    Map<String, Object> jpaProperties = new HashMap<String, Object>();
    jpaProperties.putAll(properties.getHibernateProperties(dataSource));
    jpaProperties.put("hibernate.ejb.interceptor", hibernateInterceptor());
    return factory.dataSource(dataSource).packages("sample.data.jpa")
            .properties((Map) jpaProperties).build();
}

@Bean
public EmptyInterceptor hibernateInterceptor() {
    return new EmptyInterceptor() {
        @Override
        public boolean onLoad(Object entity, Serializable id, Object[] state,
                String[] propertyNames, Type[] types) {
            System.out.println("Loaded " + id);
            return false;
        }
    };
}

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