Spring JPA H2 数据库获取 org.h2.jdbc.JdbcSQLSyntaxErrorException Table 未找到

Question

我有一个 Spring 引导实体定义为：

@Data
@Entity
@Table(name = "TaxOffice")
public class TaxOffice {

    public TaxOffice(){}

    public TaxOffice(int id, String name, int voivodeship_id){
        this.id = id;
        this.name = name;
        this.voivodeship_id = voivodeship_id;
      
    }

    @Id
    private int id;

    @Column(name="name")
    private String name;

    @Column(name="voivodeship_id")
    private int voivodeship_id;

    @ManyToOne
    @JoinColumn(name = "city_id")
    private City city;

    @OneToOne
    @JoinColumn(name = "details_id")
    private TaxOffice_Detail taxOffice_details;
}

在应用程序-test.properties中，我有以下设置：

spring.datasource.url=jdbc:h2:mem:TestDB;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.h2.console.enabled=true
spring.jpa.hibernate.ddl-auto=none
spring.jpa.defer-datasource-initialization=true

当我运行这个测试

    @Test
    void  findAllByCity_idTest(){
        assertEquals(1, taxOfficeService.findAllByCity_id(48).size());
    }

我收到此错误：

org.h2.jdbc.JdbcSQLSyntaxErrorException: 
Table "TAX_OFFICE" not found; SQL statement:
/* select t from TaxOffice t where t.city.id = :id */ select taxoffice0_.id as id1_1_, taxoffice0_.city_id as city_id4_1_, taxoffice0_.name as name2_1_, taxoffice0_.details_id as details_5_1_, taxoffice0_.voivodeship_id as voivodes3_1_ from tax_office taxoffice0_ where taxoffice0_.city_id=? [42102-210]

没有Table“TAX_OFFICE”，但是有“TaxOffice”，为什么要找“TAX_OFFICE”呢？为什么会发生这种情况，我该如何解决？

编辑：TaxService.java

@Transactional
@Service
public class TaxOfficeService {

    @Autowired
    TaxOfficeRepository taxOfficeRepository;

    public List<TaxOffice> findAllByCity_id(int id){
        return taxOfficeRepository.findAllByCity_id(id);
    }

}

税务局资料库

@Repository("taxOfficeRepository")
public interface TaxOfficeRepository extends JpaRepository<TaxOffice,Integer> {

    @Query("select t from TaxOffice t where t.city.id = :id")
    List<TaxOffice> findAllByCity_id(int id);
}

Answer 1

Hibernate 和 Spring 默认具有命名策略，这决定了必须如何编译实体 class 以及如何生成 table 和列名。这可以根据使用情况通过应用程序属性或休眠配置文件进行自定义。

例如

spring:
  jpa:
    hibernate:
      naming:
        physical-strategy: org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
        implicit-strategy: org.hibernate.boot.model.naming.ImplicitNamingStrategyLegacyJpaImpl

Spring JPA H2 数据库获取 org.h2.jdbc.JdbcSQLSyntaxErrorException Table 未找到

Spring JPA H2 database get org.h2.jdbc.JdbcSQLSyntaxErrorException Table not found

java

jpa

h2

spring-boot