[英]Hibernate not creating PostgreSQL schema object using JPA
我有以下代碼:
@Configuration
public class HibernateConfig {
@Autowired
private DataSourceProperties dataSourceProperties;
@Autowired
private JpaProperties jpaProperties;
@Bean
JpaVendorAdapter jpaVendorAdapter() {
return new HibernateJpaVendorAdapter();
}
@Bean
@Scope(
value = ConfigurableBeanFactory.SCOPE_PROTOTYPE,
proxyMode = ScopedProxyMode.TARGET_CLASS)
public JdbcTemplate jdbcTemplate() {
return new JdbcTemplate(customDataSource(dataSourceProperties));
}
@Bean
public DataSource customDataSource(DataSourceProperties properties) {
final CustomHikariDataSource dataSource = properties.initializeDataSourceBuilder().type(CustomHikariDataSource.class).build();
if (properties.getName() != null) {
dataSource.setPoolName(properties.getName());
}
return dataSource;
}
// @Bean
// LocalContainerEntityManagerFactoryBean entityManagerFactory(
//// DataSource dataSource,
// MultiTenantConnectionProvider multiTenantConnectionProviderImpl,
// CurrentTenantIdentifierResolver currentTenantIdentifierResolverImpl
// ) {
//
// Map<String, Object> jpaPropertiesMap = createJpaPropertiesMap(multiTenantConnectionProviderImpl, currentTenantIdentifierResolverImpl);
//
// LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
//
// factoryBean.setDataSource(customDataSource(dataSourceProperties));
// factoryBean.setPackagesToScan("com.sample.billing*");
// factoryBean.setJpaVendorAdapter(this.jpaVendorAdapter());
// factoryBean.setJpaPropertyMap(jpaPropertiesMap);
//
// return factoryBean;
// }
private Map<String, Object> createJpaPropertiesMap(MultiTenantConnectionProvider multiTenantConnectionProviderImpl,
CurrentTenantIdentifierResolver currentTenantIdentifierResolverImpl) {
Map<String, Object> jpaPropertiesMap = new HashMap<>(jpaProperties.getProperties());
jpaPropertiesMap.put(Environment.MULTI_TENANT, MultiTenancyStrategy.SCHEMA);
jpaPropertiesMap.put(Environment.MULTI_TENANT_CONNECTION_PROVIDER, multiTenantConnectionProviderImpl);
jpaPropertiesMap.put(Environment.MULTI_TENANT_IDENTIFIER_RESOLVER, currentTenantIdentifierResolverImpl);
jpaPropertiesMap.put(Environment.FORMAT_SQL, true);
jpaPropertiesMap.put(Environment.SHOW_SQL, true);
return jpaPropertiesMap;
}
}
public class CustomHikariDataSource extends HikariDataSource {
@Override
public Connection getConnection() throws SQLException {
Connection connection = super.getConnection();
connection.setSchema("public");
return connection;
}
}
該項目運行良好,但我想根據客戶端選擇架構。 然后,我取消注釋前面提供的第一個類中的 bean:
@Bean
LocalContainerEntityManagerFactoryBean entityManagerFactory(
// DataSource dataSource,
MultiTenantConnectionProvider multiTenantConnectionProviderImpl,
CurrentTenantIdentifierResolver currentTenantIdentifierResolverImpl
) {
Map<String, Object> jpaPropertiesMap = createJpaPropertiesMap(multiTenantConnectionProviderImpl, currentTenantIdentifierResolverImpl);
LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
factoryBean.setDataSource(customDataSource(dataSourceProperties));
factoryBean.setPackagesToScan("com.sample.billing*");
factoryBean.setJpaVendorAdapter(this.jpaVendorAdapter());
factoryBean.setJpaPropertyMap(jpaPropertiesMap);
return factoryBean;
}
在取消注釋 bean 的情況下,我得到了提供的錯誤:
2020-11-24 18:03:24.602 ERROR 31729 --- [ scheduling-1] o.h.engine.jdbc.spi.SqlExceptionHelper : ERROR: relation "account" does not exist
Position: 515
2020-11-24 18:03:24.603 INFO 31729 --- [ scheduling-1] c.m.b.m.c.d.TenantConnectionProvider : Release connection for tenant public
2020-11-24 18:03:24.608 ERROR 31729 --- [ scheduling-1] o.s.s.s.TaskUtils$LoggingErrorHandler : Unexpected error occurred in scheduled task
org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:259) ~[spring-orm-5.3.1.jar:5.3.1]
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233) ~[spring-orm-5.3.1.jar:5.3.1]
出現SQLGrammarException
錯誤是因為模式中的表沒有被創建,但表確實在沒有這個 bean 的情況下創建。
這里有什么問題,我該如何解決?
ohengine.jdbc.spi.SqlExceptionHelper:錯誤:關系“帳戶”不存在,您的表帳戶不存在。
我不知道如何在您的邏輯中創建表,但通常當我使用 Hibernate 時,我使用 hibernate.hbm2ddl.auto 可能的選項:validate | 更新 | 創建 | 創建刪除
也許嘗試為這個數據源創建它會解決這個問題?
https://docs.spring.io/spring-boot/docs/1.1.0.M1/reference/html/howto-database-initialization.html
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