118 more at org.springframework.orm.hibernate3.support.HibernateDaoSupport.getSession(HibernateDaoSupport.java:143)Caused by: java.lang.NullPointerExcepti
org.springframework.orm.hibernate5.SpringSessionContext放在application.properties中
public abstract class BaseHibernateDao<E, PK extends Serializable> HibernateDaoSupport</em
我读到了Spring框架的DAOSupport类。但我无法理解这些DAOSuport类的优点。在DAOSupport类中,我们调用getXXXTemplate()方法来获取特定的模板对象,然后将其进一步用于DB访问。那么扩展DAOSupport类的优势是什么?public class JdbcDao extends SimpleJdbcDaoSupport {
public int create(Bb o