Question

尝试以编程方式验证架构

@Autowired    
LocalContainerEntityManagerFactoryBean localContainerEntityManagerFactoryBean;

//获取hibernate配置的代码

private Configuration getHibernateConfiguration() {
        final PersistenceUnitInfo persistenceUnitInfo = localContainerEntityManagerFactoryBean.getPersistenceUnitInfo();
        final Map<String, Object> jpaPropertyMap = localContainerEntityManagerFactoryBean.getJpaPropertyMap();
        EntityManagerFactoryBuilderImpl builder = new EntityManagerFactoryBuilderImpl(new PersistenceUnitInfoDescriptor(persistenceUnitInfo), jpaPropertyMap) {
            @Override
            public Configuration buildHibernateConfiguration(ServiceRegistry serviceRegistry) {
                Configuration configuration = super.buildHibernateConfiguration(serviceRegistry);
                if (persistenceUnitInfo instanceof SmartPersistenceUnitInfo) {
                    for (String managedPackage : ((SmartPersistenceUnitInfo) persistenceUnitInfo).getManagedPackages()) {
                        configuration.addPackage(managedPackage);
                    }
                }
                return configuration;
            }
        };
        serviceRegistry = builder.buildServiceRegistry();


        return builder.buildHibernateConfiguration(serviceRegistry);
    }

此方法尝试从Configuration类调用schemaValidator方法。

public void getSchemaValidationService(DataSource dataSource) {
        Properties hibernateProperties = new Properties();
        hibernateProperties.setProperty("hibernate.dialect", hibernateDialect);
        Dialect dialect = Dialect.getDialect(hibernateProperties);
        Configuration configuration = getHibernateConfiguration(dataSource);
        Connection connection = null;
        try {
            connection = dataSource().getConnection();
            DatabaseMetadata metadata = new DatabaseMetadata(connection, dialect, configuration);
            configuration.validateSchema(dialect, metadata);
        } catch (SQLException e) {
            throw new RuntimeException(e);
        } finally {
            if (connection != null) {
                try {
                    new SqlExceptionHelper().logAndClearWarnings( connection );
                    connection.setAutoCommit( false );
                    connection.close();
                    logger.error("Connection Closed : "+connection.isClosed() );
                    connection = null;
                    StandardServiceRegistryBuilder.destroy(serviceRegistry);

                } catch (SQLException e) {
                    logger.error("Datasource connection failed to close");
                }
            }
        }

    }

在多租户模式下使用hibernate，以便尝试以编程方式验证架构。

模式验证工作正常，但几分钟后它就会尝试抛出

MySQLNonTransientConnectionException以防验证失败。

请提出任何有价值的建议。

Answer 1

是的，问题是当架构验证失败时，dataSource没有关闭

在hibernate中以编程方式验证数据库模式会抛出MySQLNonTransientConnectionException

1 个答案: