接口 TransactionManagementConfigurer

方法详细资料

• annotationDrivenTransactionManager

  PlatformTransactionManager annotationDrivenTransactionManager()

  Return the default transaction manager bean to use for annotation-driven database transaction management, i.e. when processing @Transactional methods.

  There are two basic approaches to implementing this method:

  1. Implement the method and annotate it with @Bean

  In this case, the implementing @Configuration class implements this method, marks it with @Bean and configures and returns the transaction manager directly within the method body:

   @Bean
   @Override
   public PlatformTransactionManager annotationDrivenTransactionManager() {
       return new DataSourceTransactionManager(dataSource());
   }

  2. Implement the method without @Bean and delegate to another existing @Bean method

   @Bean
   public PlatformTransactionManager txManager() {
       return new DataSourceTransactionManager(dataSource());
   }
  
   @Override
   public PlatformTransactionManager annotationDrivenTransactionManager() {
       return txManager(); // reference the existing @Bean method above
   }

  If taking approach #2, be sure that only one of the methods is marked with @Bean!

  In either scenario #1 or #2, it is important that the PlatformTransactionManager instance is managed as a Spring bean within the container as all PlatformTransactionManager implementations take advantage of Spring lifecycle callbacks such as InitializingBean and BeanFactoryAware.