Spring support multiple @Transactional datasource

1. Define tx-manager

    <tx:annotation-driven/>
    
        <property name="dataSource" ref="dataSource1"/>
    

    
        <property name="dataSource" ref="dataSource2"/>
    

2. In you service layer code

@Transactional(value = "jdbcTxManager")
public List<String> getNames() {
    return userDao.getNames();
}

@Transactional(value = "jpaTxManager")
public void persitentUser(User user) {
    return user.persist();
}