我收到了 org.hibernate.hql.internal.ast.QuerySyntaxException: Test is not mapped
当我在使用 @Query
的 Spring Data JPA 存储库中创建方法时注释和 Spring Data JPA 验证它。
Caused by: java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: Test is not mapped [SELECT t from Test t]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1750)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1683)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:331)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_40]
at java.lang.reflect.Method.invoke(Method.java:497) [rt.jar:1.8.0_40]
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:344)
at com.sun.proxy.$Proxy125.createQuery(Unknown Source)
at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:86)
... 47 more
存储库如下所示:
public interface TestRepository extends JpaRepository<Test, Long>{
Test findByDescriptionContaining(String text); //works
@Query("SELECT t from Test t") //fails
Test getOr();
}
有趣的是,我可以使用 Spring Data JPA 方法名称解析并且此查询有效。此外,当我向实体添加新字段并将 hbm2ddl.auto 设置为更新时,更改会持久保存到数据库中。但是用
@Query
查询注释不起作用。我的持久化配置如下所示:
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(basePackages = "com.company", entityManagerFactoryRef = "localContainerEntityManagerFactoryBean")
@ComponentScan("com.company")
public class PersistenceJPAConfig {
private static final Logger LOGGER = LoggerFactory.getLogger(PersistenceJPAConfig.class);
@Bean
@DependsOn("dataSource")
public JdbcTemplate jdbcTemplate() {
return new JdbcTemplate(dataSource());
}
@Bean
@DependsOn("dataSource")
public NamedParameterJdbcTemplate namedParameterJdbcTemplate() {
return new NamedParameterJdbcTemplate(dataSource());
}
@Bean
public MailSender mailSender(){
final MailSenderImpl mailSenderImpl = new MailSenderImpl();
mailSenderImpl.setDataSource(dataSource());
return mailSenderImpl;
}
@Bean
public DataSource dataSource() {
HikariConfig config = new HikariConfig();
config.setDriverClassName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
config.setJdbcUrl("jdbc:sqlserver://localhost;DatabaseName=mydb");
config.setUsername("user");
config.setPassword("pass");
config.setPoolName("HikariCpConnectionPool");
config.setMaximumPoolSize(50);
config.setMinimumIdle(2);
return new HikariDataSource(config);
}
@Bean
@DependsOn({"dataSource"})
public LocalContainerEntityManagerFactoryBean localContainerEntityManagerFactoryBean() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan(new String[]{
"com.company.**.*"
});
em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
em.setJpaProperties(additionalProperties());
return em;
}
@Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
@Bean
public PlatformTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}
private Properties additionalProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.hbm2ddl.auto", "update");
properties.setProperty("hibernate.dialect", "org.hibernate.dialect.SQLServer2012Dialect");
properties.setProperty("hibernate.show_sql", "false");
properties.setProperty("hibernate.format_sql", "false");
properties.setProperty("hibernate.use_sql_comments", "false");
properties.setProperty("hibernate.id.new_generator_mappings", "false");
properties.setProperty("hibernate.enable_lazy_load_no_trans", "true");
properties.setProperty("hibernate.generate_statistics", "false");
return properties;
}
}
更新:测试实体。基础实体有
@Id Long id
并且是 @MappedSuperClass
@Entity(name = "test")
public class Test extends BaseEntity{
public Test() {
}
@Column(name = "description")
private String description;
最佳答案
@Entity(name = "test")
public class Test extends BaseEntity { ... }
在您的实体中,您指定一个
name
属性覆盖默认命名(使用类的名称)。因此您的查询是错误的,您的查询需要一个名为 Test
的实体但这不可用。您有 2 种可能的解决方案
name
属性并保持查询不变。 select t from test t
(注意 t
而不是 T
)。 随后您的返回类型也是错误的,因为它将返回一组元素而不是单个元素。所以把它改成
List<Test>
.
关于Spring,Spring Data JPA : org. hibernate.hql.internal.ast.QuerySyntaxException:测试未映射,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34151149/