Createalias method of Hibernate criteria interface: establish connection query

Grammar 1

createAlias(String associationPath,String alias)

Example

Session session = sessionFactory.openSession();  //获取session对象
Criteria criteria = session.createCriteria(TbTopic.class)  //示例化Criteria对象
.createAlias("tbReplies","r");
List list = criteria.list();

Grammar 2

createAlias(String associationPath,String alias,int joinType)

Example

Session session = sessionFactory.openSession();  //获取session对象
Criteria criteria = session.createCriteria(TbTopic.class)
.createAlias("tbReplies","r",CriteriaSpecification.LEFT_JOIN);  //建立查询连接
List list = criteria.list();