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[Source] In Spring boot, the JPA persistent listener intercepts additions, deletions, and modifications

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Posted on 4/2/2019 4:20:47 PM | | |
In JPA, we use the Java Persistence API to persist data (adding, deleting, modifying, and checking), which also provides a callback method in the life cycle of listening to data persistence, which is mainly implemented by the following annotations:

* @PrePersist Before saving
* @PostPersist After saving
* @PreRemove before deletion
* @PostRemove after deletion
* @PreUpdate Before the update
* @PostUpdate After the update
* After @PostLoad query

These annotations must be used in conjunction with @EntityListeners annotations, @EntityListeners annotations are entity listener annotations.

Let's take the Saving Customer object as an example:

Step 1: Create a listener class CustomerListener

Step 2: Add @EntityListeners annotation to the Customer class

Through the above, data persistence can be intercepted.





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