我有问题,当我尝试使用2个数据库时出现错误
我的错误日志:
NoUniqueBeanDefinitionException:没有定义[javax.sql.DataSource]类型的限定bean:期望的单个匹配bean但找到2:reportDataSource,secondDataSource
然后,如果我在第一个数据源上设置@Primary,我会在第二个数据库查询时出错:
o.h.engine.jdbc.spi.SqlExceptionHelper:SQL错误:942,SQLState:42000 o.h.engine.jdbc.spi.SqlExceptionHelper:ORA-00942:表或视图不存在
org.springframework.dao.InvalidDataAccessResourceUsageException:无法提取ResultSet; SQL [不适用];嵌套异常是org.hibernate.exception.SQLGrammarException:无法提取ResultSet
如果我在DB上手动运行它,那么SQL工作。
Hibernete没有看到我的表没有@Primary数据源。当我从app第二个数据库删除工作正常。 在我看来,两个实体经理使用@Primary数据源,这就是为什么Hibernate不会从第二个看到表格的。
我不知道我现在该做什么。欢迎任何帮助。
First DbConfig:
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
entityManagerFactoryRef = "reportEntityMangerFactory",
basePackages = {"com.company.db.report.repository"}
)
public class ReportDbConfig {
@Bean(name = "reportDataSource")
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
dataSource.setUrl("jdbc:oracle:thin:@127.0.0.1:1521:FIRST");
dataSource.setUsername("test");
dataSource.setPassword("test");
return dataSource;
}
@Bean(name = "reportEntityManager")
public EntityManager entityManager() {
return entityManagerFactory().createEntityManager();
}
@Bean(name = "reportEntityMangerFactory")
public EntityManagerFactory entityManagerFactory() {
HashMap<String, Object> properties = new HashMap<String, Object>();
properties.put("hibernate.hbm2ddl.auto", "validate");
properties.put("hibernate.dialect", "org.hibernate.dialect.Oracle10gDialect");
HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setDataSource(dataSource());
factory.setJpaVendorAdapter(jpaVendorAdapter);
factory.setPackagesToScan("com.company.db.report.entity");
factory.setJpaPropertyMap(properties);
factory.afterPropertiesSet();
return factory.getObject();
}
}
第二个DBConfig:
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
entityManagerFactoryRef = "secondEntityMangerFactory",
basePackages = {"com.company.db.second.repository"}
)
public class SecondDbConfig {
@Bean(name = "secondDataSource")
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
dataSource.setUrl("jdbc:oracle:thin:@127.0.0.1:1521:SECOND");
dataSource.setUsername("test");
dataSource.setPassword("test");
return dataSource;
}
@Bean(name = "secondEntityManager")
public EntityManager entityManager() {
return entityManagerFactory().createEntityManager();
}
@Bean(name = "secondEntityMangerFactory")
public EntityManagerFactory entityManagerFactory() {
HashMap<String, Object> properties = new HashMap<String, Object>();
properties.put("hibernate.hbm2ddl.auto", "validate");
properties.put("hibernate.dialect", "org.hibernate.dialect.Oracle10gDialect");
HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
LocalContainerEntityManagerFactoryBean factory = new LocalContainerEntityManagerFactoryBean();
factory.setDataSource(dataSource());
factory.setJpaVendorAdapter(jpaVendorAdapter);
factory.setPackagesToScan("com.company.db.second.entity");
factory.setJpaPropertyMap(properties);
factory.afterPropertiesSet();
return factory.getObject();
}
}
第一个数据库的存储库(com.company.db.report.repository.DbUserRepository):
@Repository
@Table(name = "DB_USER")
public interface DbUserRepository extends JpaRepository<DbUser, Long> {
List<DbUser> findAll();
DbUser save(DbUser entity);
}
第二个数据库的存储库(com.company.db.second.repository.BvpRepository):
@Repository
@Table(name = "BVP")
public interface BvpRepository extends JpaRepository<Bvp, Long> {
List<Bvp> findAll();
Bvp save(Bvp entity);
}
第一个数据库的实体位于com.company.db.report.entity中, 对于com.company.db.second.entity中的第二个DB。
类似的问题是there,但这个答案并没有帮助。
答案 0 :(得分:0)
如果您需要检查配置,请查看此link以重构并使您的代码更具可读性。
我可以看到您在存储库中使用@Table
。必须在表示数据库中的表的实体中使用@Table
。在您的情况下,将是Bvp
和DbUser
类。