Java SpringBoot defining multiple datasources error - postgresql

Question

I am using springBoot, and am following this tutorial while trying to set up two datasources (pims & powwow).
application.properties
# pims datasource
spring.datasource1.jdbc-url=jdbc:postgresql://localhost:5432/pims
spring.datasource1.username=postgres
spring.datasource1.password=postgres
# powwow datasource
spring.datasource2.jdbc-url=jdbc:postgresql://localhost:5432/powwow
spring.datasource2.username=postgres
spring.datasource2.password=postgres
PersistencePimsAutoConfiguration.java
#Configuration
#PropertySource({"classpath:application.properties"})
#EnableJpaRepositories(
basePackages = {"com.clubtravel.powwow.dao.pims", "com.clubtravel.powwow.repositories.pims"},
entityManagerFactoryRef = "pimsEntityManager",
transactionManagerRef = "pimsTransactionManager")
public class PersistencePimsAutoConfiguration {
#Autowired
private Environment env;
#Primary
#Bean
#ConfigurationProperties(prefix="spring.datasource1")
public DataSource pimsDataSource() {
return DataSourceBuilder.create().build();
}
#Primary
public LocalContainerEntityManagerFactoryBean pimsEntityManager() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(pimsDataSource());
em.setPackagesToScan(new String[] { "com.clubtravel.powwow.entities.pims" });
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
HashMap<String, Object> properties = new HashMap<>();
properties.put("hibernate.hbm2ddl.auto",env.getProperty("hibernate.hbm2ddl.auto"));
properties.put("hibernate.dialect",env.getProperty("hibernate.dialect"));
em.setJpaPropertyMap(properties);
return em;
}
#Bean
public PlatformTransactionManager pimsTransactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(pimsEntityManager().getObject());
return transactionManager;
}
}
PersistencePowwowAutoConfiguration.java
#Configuration
#PropertySource({"classpath:application.properties"})
#EnableJpaRepositories(
basePackages = {"com.clubtravel.powwow.dao.powwow", "com.clubtravel.powwow.repositories.powwow"},
entityManagerFactoryRef = "powwowEntityManager",
transactionManagerRef = "powwowTransactionManager")
public class PersistencePowwowAutoConfiguration {
#Autowired
private Environment env;
#Primary
#Bean
#ConfigurationProperties(prefix="spring.datasource2")
public DataSource powwowDataSource() {
return DataSourceBuilder.create().build();
}
#Bean
#Primary
public LocalContainerEntityManagerFactoryBean powwowEntityManager() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(powwowDataSource());
em.setPackagesToScan(new String[] { "com.clubtravel.powwow.entities.powwow" });
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
HashMap<String, Object> properties = new HashMap<>();
properties.put("hibernate.hbm2ddl.auto",env.getProperty("hibernate.hbm2ddl.auto"));
properties.put("hibernate.dialect",env.getProperty("hibernate.dialect"));
em.setJpaPropertyMap(properties);
return em;
}
#Bean
public PlatformTransactionManager powwowTransactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(powwowEntityManager().getObject());
return transactionManager;
}
}
LobDao.java
#Component
public class LobDao {
#Autowired
LobRepository lobRepository;
#PersistenceContext
EntityManager entityManager;
public List<LobEntity> findAll() {
return lobRepository.findAll();
}
LobRepository.java
#Repository
public interface LobRepository extends JpaRepository<LobEntity,Integer> {
}
When i start the server, I get the folowing:
Error
***************************
APPLICATION FAILED TO START
***************************
Description:
Field lobRepository in com.clubtravel.powwow.dao.pims.LobDao required a bean of type 'com.clubtravel.powwow.repositories.pims.LobRepository' that could not be found.
The injection point has the following annotations:
- #org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean of type 'com.clubtravel.powwow.repositories.pims.LobRepository' in your configuration.
I have partitioned the entities, daos and repositories for each separate database.
More info:
If I add the repository package:
basePackages = {"com.clubtravel.powwow.dao.pims", "com.clubtravel.powwow.repositories.pims"},
The error becomes:
Description:
Field lobRepository in com.clubtravel.powwow.dao.pims.LobDao required a bean named 'pimsEntityManager' that could not be found.
The injection point has the following annotations:
- #org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean named 'pimsEntityManager' in your configuration.
More info:
I have also tried adding '#Transactional' to the DAO, but it makes no difference:
#Transactional("pimsTransactionManager")
public List<LobEntity> findAll() {
return lobRepository.findAll();
}

Answer 1

I had such problem, and it resolved by just adding these annotationsannotations in the main springBoot application class:
#SpringBootApplication(scanBasePackages = "com.clubtravel.powwow")
#EntityScan("com.clubtravel.powwow")
public class MyApplication {
public static void main(String[] args) {
SpringApplication.run(MyApplication.class, args);
}
}