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两个数据库实例，一个负责读，一个负责写。
datasource-reader: type: com.alibaba.druid.pool.DruidDataSource url: jdbc:MySQL://192.168.43.61:3306/test?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=false username: icbc password: icbc driver-class-name: com.mysql.jdbc.Driver continue-on-error: false sql-script-encoding: UTF-8 datasource-writer: type: com.alibaba.druid.pool.DruidDataSource url: jdbc:mysql://192.168.43.61:3306/hdfs?useUnicode=true&characterEncoding=utf8&autoReconnect=true&useSSL=false username: icbc password: icbc driver-class-name: com.mysql.jdbc.Driver continue-on-error: false sql-script-encoding: UTF-8
读数据库配置
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactoryPrimary", transactionManagerRef = "transactionManagerPrimary", basePackages = {
"cn.cib.repository.read"})
public class RepositoryPrimaryConfig {
@Autowired
@Qualifier("r_ds")
private DataSource r_ds;
@Bean(destroyMethod = "", name = "entityManagerPrimary")
@Primary
public EntityManager entityManager() {
return entityManagerFactoryPrimary().getObject().createEntityManager();
}
@Bean(destroyMethod = "", name = "entityManagerFactoryPrimary")
@Primary
public LocalContainerEntityManagerFactoryBean entityManagerFactoryPrimary() {
HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
factoryBean.setDataSource(r_ds);
factoryBean.setJpaVendorAdapter(jpaVendorAdapter);
factoryBean.setJpaProperties(HibernatePropertiesBuilder.hibernateProperties());
factoryBean.setPackagesToScan("cn.cib.repository.read", "cn.cib.entity.read");
factoryBean.setPersistenceUnitName("read");
return factoryBean;
}
@Bean(destroyMethod = "", name = "transactionManagerPrimary")
@Primary
PlatformTransactionManager transactionManagerPrimary() {
return new JpaTransactionManager(entityManagerFactoryPrimary().getObject());
}
}写数据库配置
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactorySecondary", transactionManagerRef = "transactionManagerSecondary", basePackages = {
"cn.cib.repository.write"})
public class RepositorySecondaryConfig {
@Autowired
@Qualifier("w_ds")
private DataSource w_ds;
@Bean(destroyMethod = "", name = "entityManagerSecondary")
public EntityManager entityManager() {
return entityManagerFactorySecondary().getObject().createEntityManager();
}
@Bean(destroyMethod = "", name = "entityManagerFactorySecondary")
public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary() {
HibernateJpaVendorAdapter jpaVendorAdapter = new HibernateJpaVendorAdapter();
LocalContainerEntityManagerFactoryBean factoryBean = new LocalContainerEntityManagerFactoryBean();
factoryBean.setDataSource(w_ds);
factoryBean.setJpaVendorAdapter(jpaVendorAdapter);
factoryBean.setJpaProperties(HibernatePropertiesBuilder.hibernateProperties());
factoryBean.setPackagesToScan("cn.cib.repository.write","cn.cib.entity.write");
factoryBean.setPersistenceUnitName("write");
return factoryBean;
}
@Bean(destroyMethod = "", name = "transactionManagerSecondary")
PlatformTransactionManager transactionManagerSecondary() {
return new JpaTransactionManager(entityManagerFactorySecondary().getObject());
}
}Hibernate相关属性配置
public class HibernatePropertiesBuilder {
public static Properties hibernateProperties() {
final Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
hibernateProperties.setProperty("hibernate.hbm2ddl.auto", "update");
hibernateProperties.setProperty("hibernate.show_sql", "true");
hibernateProperties.setProperty("hibernate.format_sql", "true");
return hibernateProperties;
}
}感谢你能够认真阅读完这篇文章，希望小编分享的“SpringBoot 2.0多数据源配置的示例分析”这篇文章对大家有帮助，同时也希望大家多多支持创新互联，关注创新互联行业资讯频道，更多相关知识等着你来学习!