Hi Harshit S.

创新互联云计算的互联网服务提供商,拥有超过13年的服务器租用、川西大数据中心、云服务器、虚拟主机、网站系统开发经验，已先后获得国家工业和信息化部颁发的互联网数据中心业务许可证。专业提供云主机、虚拟主机、域名与空间、VPS主机、云服务器、香港云服务器、免备案服务器等。

project structure:

multiple datasource config as follows:

step 1:

 

step 2:add a datasource configuration class

@Configuration
public class DataSourceConfig {
// ape datasource config    @Value("${spring.ape-datasource.driver-class-name}")
private String apeDriverClassName;

    @Value("${spring.ape-datasource.url}")
private String apeDBUrl;

    @Value("${spring.ape-datasource.username}")
private String apeDBUsername;

    @Value("${spring.ape-datasource.password}")
private String apeDBPassword;

// DBQ datasource config    @Value("${spring.dbq-datasource.url}")
private String dbqDBUrl;

    @Value("${spring.dbq-datasource.username}")
private String dbqDBUsername;

    @Value("${spring.dbq-datasource.password}")
private String dbqDBPassword;

    @Value("${spring.dbq-datasource.driver-class-name}")
private String dbqDriverClassName;

    @Primary
    @Bean(name= "apeDataSource")
    @Qualifier("apeDataSource")
public DataSource apeDataSource() {
        HikariDataSource dataSource= new HikariDataSource();
        dataSource.setPoolName("ape pool");
        dataSource.setDriverClassName(apeDriverClassName);
        dataSource.setJdbcUrl(apeDBUrl);
        dataSource.setUsername(apeDBUsername);
        dataSource.setPassword(apeDBPassword);
        dataSource.setAutoCommit(true);
        dataSource.setMaximumPoolSize(20);
return dataSource;
    }

    @Bean(name= "dbqDataSource")
    @Qualifier("dbqDataSource")
public DataSource dbqDataSource() {
        HikariDataSource dataSource= new HikariDataSource();
        dataSource.setPoolName("DBQ pool");
        dataSource.setDriverClassName(dbqDriverClassName);
        dataSource.setJdbcUrl(dbqDBUrl);
        dataSource.setUsername(dbqDBUsername);
        dataSource.setPassword(dbqDBPassword);
        dataSource.setAutoCommit(true);
        dataSource.setMaximumPoolSize(20);
return dataSource;
    }

}

 Step3: add Jpa config class

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef= "apeManagerFactory",
        transactionManagerRef= "apeTransactionManager",
        basePackages= {"com.cn.ano2ape.repository.ape"}
)
public class ApeJpaConfig {
    @Autowired
    @Qualifier("apeDataSource")
private DataSource apeDataSource;

    @Autowired
private JpaProperties jpaProperties;

    @Autowired
private HibernateProperties hibernateProperties;

    @Primary
    @Bean(name= "apeEntityManager")
public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
return apexaEntityManagerFactory(builder).getObject().createEntityManager();
    }

    @Primary
    @Bean(name= "apeManagerFactory")
public LocalContainerEntityManagerFactoryBean apexaEntityManagerFactory(EntityManagerFactoryBuilder builder) {
        Map properties = hibernateProperties.determineHibernateProperties(jpaProperties.getProperties(), new HibernateSettings());
return builder.dataSource(apeDataSource).properties(properties).packages("com.cn.ano2ape.model.ape").build();
    }

    @Primary
    @Bean(name= "apeTransactionManager")
    PlatformTransactionManager apexaTransactionManager(EntityManagerFactoryBuilder builder) {
return new JpaTransactionManager(apexaEntityManagerFactory(builder).getObject());
    }
}

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef= "dbqManagerFactory",
        transactionManagerRef= "dbqTransactionManager",
        basePackages= {"com.cn.ano2ape.repository.dbq"}
)
public class DbqJpaConfig {
    @Autowired
    @Qualifier("dbqDataSource")
private DataSource dbqDataSource;

    @Autowired
private JpaProperties jpaProperties;

    @Autowired
private HibernateProperties hibernateProperties;

    @Bean(name= "dbqEntityManager")
public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
return dbqEntityManagerFactory(builder).getObject().createEntityManager();
    }

    @Bean(name= "dbqManagerFactory")
public LocalContainerEntityManagerFactoryBean dbqEntityManagerFactory(EntityManagerFactoryBuilder builder) {
        Map properties = hibernateProperties.determineHibernateProperties(jpaProperties.getProperties(), new HibernateSettings());
return builder.dataSource(dbqDataSource).properties(properties).packages("com.cn.ano2ape.model.dbq").build();
    }

    @Bean(name= "dbqTransactionManager")
    PlatformTransactionManager dbqTransactionManager(EntityManagerFactoryBuilder builder) {
return new JpaTransactionManager(dbqEntityManagerFactory(builder).getObject());
    }
}

end.

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