SessionFactory异常

Question

在我的spring boot + hibernate 5应用程序中获取java.lang.IllegalArgumentException: Property 'sessionFactory' is required。我试着像这样自动挂线

@Autowired
    public void setupSessionFactory(SessionFactory sessionFactory) {
        setSessionFactory(sessionFactory);
        getHibernateTemplate().setCheckWriteOperations(false);
    }

我还试着在我的配置文件中添加类似这样的东西

 @Bean
    public HibernateJpaSessionFactoryBean getSessionFactory() {
        return new HibernateJpaSessionFactoryBean();
    }

    @Bean
    public SessionFactory sessionFactory(){
        return new LocalSessionFactoryBean().getObject();
    }

    @Bean
    public HibernateTransactionManager transactionManager(SessionFactory sf) {
        return new HibernateTransactionManager(sf);
    }

我的application.yml文件

spring:
  datasource:
    url: jdbc:postgresql://localhost:5432/db
    driver-class-name: org.postgresql.Driver
    username: postgres
    password: password
  jpa:
    hibernate:
      ddl-auto: update

security:
  basic:
    enabled: false

有什么办法解决这个问题吗？

Answer 1

这可能是因为return new LocalSessionFactoryBean().getObject();返回null。

此方法仅返回内部字段值：

public SessionFactory getObject() {
        return this.sessionFactory;
}

其默认值为null。

需要配置会话工厂:应设置dataSource、要扫描的包、hibernate属性。Something like that

   @Bean
   public LocalSessionFactoryBean sessionFactory() {
      LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
      sessionFactory.setDataSource(restDataSource());
      sessionFactory.setPackagesToScan(
        new String[] { "org.baeldung.spring.persistence.model" });
      sessionFactory.setHibernateProperties(hibernateProperties());

      return sessionFactory;
   }