Spring数据JPA existByField区分大小写，如何使其忽略大小写

Question

ClientsRepository类

public interface ClientsRepository extends JpaRepository<ClientsEntity, Long> {

    boolean existsByClientId(String clientId);

}

ClientsEntity类

@Getter
@Setter
@NoArgsConstructor
@Entity
@Table(name = "clients")
public class ClientsEntity {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    private String clientId;

}

客户表

|      id             |     client_id    |
 |---------------------|------------------|
 |       1             |         ABC      |
 |---------------------|------------------|

在调用existingByClientId（“ abc”）时返回true，如何强制检查大小写？

预期结果：existsByClientId("abc") --> falseexistsByClientId("ABC") --> true

Java版本8Spring Boot版本2.1.2.RELEASEmysql-connector-java版本5.1.46

Answer 1

从Query Creation，您可以使用IgnoreCase

existsByClientIdIgnoreCase("abc")