hibernate5与spring4中事务处理只读问题。

import org.hibernate.SessionFactory;  
import org.springframework.beans.factory.annotation.Autowired;  
import org.springframework.orm.hibernate5.support.HibernateDaoSupport;  
import org.springframework.stereotype.Component;  
import org.springframework.stereotype.Repository;  
import org.springframework.transaction.annotation.Transactional;  

@Component
@Repository
@Transactional(rollbackFor = Exception.class)
public class UserDao extends HibernateDaoSupport {
    @Autowired
    public void setSuperSessionFactory(SessionFactory sessionFactory){
        super.setSessionFactory(sessionFactory);
    }

    public int saveUser(User user) {
//        this.getHibernateTemplate().setCheckWriteOperations(false);
        return (Integer) this.getHibernateTemplate().save(user);
    }
}

不加注释那行 Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.MANUAL): Turn your Session into FlushMode.COMMIT/AUTO or remove 'readOnly' marker from transaction definition.