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This article introduces the knowledge of "how to configure Spring Data JPA compound primary key". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Create a compound primary key class, add @ Embeddable annotation to the class, and pay attention to implementing the Serializable interface

Import lombok.Data;import javax.persistence.Column;import javax.persistence.Embeddable;import java.io.Serializable;@Data@Embeddablepublic class PriKey implements Serializable {private String icId; private String orgId;}

two。 The compound primary key class is the primary key attribute on the entity class, and the @ EmbeddedId annotation is added to the attribute

This is the end of import lombok.Data;import javax.persistence.Column;import javax.persistence.EmbeddedId;import javax.persistence.Entity;import javax.persistence.Table;@Data@Entity@Table (name = "tbl_ic_study_task") public class IcStudy {@ EmbeddedId private PriKey priKey; private String type;} "how to configure Spring Data JPA compound primary keys". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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