春天引導多個數據源 - 工作只有一個

Question

我有問題，當我嘗試使用2個數據庫我得到的錯誤

我的錯誤日誌：

NoUniqueBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] is defined: expected single matching bean but found 2: reportDataSource,secondDataSource

然後如果我設置@Primary在第一數據源，我得到第二個數據庫查詢出錯：

o.h.engine.jdbc.spi.SqlExceptionHelper : SQL Error: 942, SQLState: 42000 o.h.engine.jdbc.spi.SqlExceptionHelper : ORA-00942: table or view does not exist

org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet

如果我在數據庫上運行它，SQL工作會變得很麻煩。

Hibernete沒有看到我的表不是@Primary數據源。當我從應用程序第二次工作正常刪除第一個數據庫。 在我看來，兩個Entity Mangers都使用@Primary數據源，這就是爲什麼Hibernate從第二個看不到表。

我不知道我現在應該做什麼。任何幫助將受到歡迎。

首先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(); 
    } 
} 

二對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(); 
    } 
} 

從1 DB（com.company.db.report.repository.DbUserRepository）庫：

@Repository 
@Table(name = "DB_USER") 
public interface DbUserRepository extends JpaRepository<DbUser, Long> { 

    List<DbUser> findAll(); 

    DbUser save(DbUser entity); 
} 

庫from 2nd DB（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1個數據庫的實體位於com.company.db.report.entity中，第2個數據庫位於com.company.db.second.entity中， 。

類似的問題是there，但這個答案沒有幫助。

Answer 1

如果您需要檢查配置，請看這link爲了重構並使您的代碼更具可讀性。

我可以看到您在存儲庫中使用了@Table。必須在代表數據庫中的表的實體中使用@Table。在你的情況下，將在Bvp和DbUser類。