Spring boot spring引导和调用存储过程注释还是entityManger？

有人能帮我一下吗，告诉我调用存储过程的正确方法是什么

1. I've seen annotations to call a procedure like : 
   @Procedure: In this case I have seen that they create the procedure in the entity,
   but I think it is not most optimal.
   @Query: I have been able to call my procedure with this option, but when I would like a
   parameter to be     null, I don't know how to do it since there is
   not much information. 
2. I've been using entityManager and I've been able to make a parameter null, but I don't know if it's 
   the best way to call a procedure with entityManager

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另外，创建一个验证数据的过程好吗？或者它不是必需的，无论是在实际情况下还是仅在后端有效，调用存储过程的更好选项是

@namedStoredProcedureRequesties