我有一个实体，需要手动设置 ID (PK)。
我有一些用于审计和 PK 的抽象 @MappedSuperclass，我仍然想使用它。所以我的想法是覆盖 id 列以摆脱 @GenerateValue(strategy = GenerationType.AUTO.
所以我有这样的东西：
@Entity
@Table(name = Constants.MERCHANT_PREFIX + "MERCHANT")
@Cacheable(false)
public class Merchant extends AbstractAuditable<String, Long> {
@AttributeOverride(name = "id", column = @Column(name="ID"))
private Long id;
@Override
public Long getId() {
return id;
}
@Override
public void setId(Long id) {
this.id = id;
}
}
@MappedSuperclass
@EntityListeners(value = { AuditingEntityListener.class })
public abstract class AbstractAuditable<U, PK extends Serializable> extends AbstractPersistable<PK> {
...
}
@MappedSuperclass
public abstract class AbstractPersistable<PK extends Serializable> implements Persistable<PK> {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "ID")
private PK id;
public PK getId() {
return id;
}
protected void setId(final PK id) {
this.id = id;
}
}
它工作正常（服务器已启动并且大摇大摆）
但我的集成测试失败了，下面有这个错误。
你知道为什么吗？我想也许我不应该以这种方式使用 @AttributeOverride...而且我想找到一种工作方式，让我的 Merchant 类仍然扩展我的抽象类（审核和 PK）
org.springframework.dao.InvalidDataAccessResourceUsageException:
could not prepare statement;
SQL [insert into MER_MERCHANT (ID, CREATED_BY, CREATED_DATE, LAST_MODIFIED_BY, LAST_MODIFIED_DATE, ALLOW_ACCESS, id)
values (default, ?, ?, ?, ?, ?, ?)];
nested exception is org.hibernate.exception.SQLGrammarException:
could not prepare statement
单元测试：
@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(classes = {ApplicationTest.class})
@TestExecutionListeners({ DependencyInjectionTestExecutionListener.class,
DirtiesContextTestExecutionListener.class,
TransactionalTestExecutionListener.class,
DbUnitTestExecutionListener.class })
@DatabaseSetup(value = "classpath:merchantData.xml")
@DatabaseTearDown(value="classpath:merchantData.xml", type = DatabaseOperation.DELETE_ALL)
public class RestMerchantControllerTest extends AbstractControllerTest {
@Test
public void testCreateMerchant() throws Exception {
final Long merchantId = 2L;
final Boolean allowAccess = true;
MerchantCreateVO merchantCreateVO = StubVOBuilder.buildMerchantCreateVO(allowAccess);
String requestBody = JsonUtils.jsonFormat(merchantCreateVO);
mvc.perform(post("/merchants/" + merchantId).contentType(MediaType.APPLICATION_JSON).content(requestBody)).andExpect(status().isOk());
}
}
还有ApplicationTest：（ApplicationTest和我们用来设置JPA的Application很相似）
@Configuration
@ComponentScan(value = "uk.co.xxx.yyy", excludeFilters = @ComponentScan.Filter(value=Configuration.class, type = FilterType.ANNOTATION ))
@EnableWebMvc
@EnableTransactionManagement
@PropertySources({@PropertySource("classpath:hibernate.properties"), @PropertySource("classpath:junit-persistence.properties"), @PropertySource("classpath:application-test.properties")})
@EnableJpaRepositories(basePackages = "uk.co.xxx.yyy.merchant.data.repository")
@EnableJpaAuditing(auditorAwareRef = "springSecurityAuditorAware")
public class ApplicationTest {
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(){
...
}
@Bean
public JpaTransactionManager transactionManager() {
...
}
}
通过服务器我得到了这个插入：
insert
into
MER_MERCHANT
(CREATED_BY, CREATED_DATE, LAST_MODIFIED_BY, LAST_MODIFIED_DATE, ALLOW_ACCESS, id)
values
(?, ?, ?, ?, ?, ?)
并通过集成测试：
insert
into
MER_MERCHANT
(ID, CREATED_BY, CREATED_DATE, LAST_MODIFIED_BY, LAST_MODIFIED_DATE, ALLOW_ACCESS, id)
values
(default, ?, ?, ?, ?, ?, ?)
