Java (1)

@RequestBody binding VO Class parameters processing json data VO foreground interaction

Transform put the value of the entity in the map.

@Transactional hit the annotated class or method to indicate that all the methods inside the class or the transaction of the method are handled by spring to ensure the atomicity of the transaction,
I do not know if you can understand that, that is, the method in the face of database operations, if it fails, spring is responsible for rollback operations, the successful submission of operations

Java (1)