Shulou(Shulou.com)06/01 Report--

This article mainly introduces how Mybatisplus uses @ EnableKeyGen to start the primary key to customize the primary key filling function in the startup class, which has a certain reference value, and interested friends can refer to it. I hope you can learn a lot after reading this article.

Use @ EnableKeyGen to start the custom primary key fill function in the startup class. Note that if you implement IKeyGenerator, it will conflict with @ EnableKeyGen.

@ SpringBootApplication@EnableMPP@EnableKeyGenpublic class PlusDemoApplication {public static void main (String [] args) {SpringApplication.run (PlusDemoApplication.class, args);}}

Set @ KeySequence on the entity class to automatically populate the primary key field with complex calculated values when inserting

@ KeySequence ("select lpad (max (seqno) + 3Magne10) from test") @ TableName (value = "test") public class TestEntity {@ TableId (value = "id", type=IdType.INPUT) private Integer id Thank you for reading this article carefully. I hope the article "Mybatisplus how to use @ EnableKeyGen to start custom primary key filling function in startup class" shared by the editor is helpful to everyone. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.