【hibernate】04-Criteria的用法

以User 为例

  

public List<User> findUserByName(String name) {

  Session s = null;
   List<User> list = null;
   try {
    s = HibernateUtil.getSession();
    Criteria c= s.createCriteria(User.class);
    c.add(Restrictions. eq("name", name));
    list =c.list();
   } finally {
    if (s != null)
     s.close();
   }
   return list;
  
 }

 

较运算符

HQL运算符 QBC运算符 含义

= Restrictions.eq() 等于

<> Restrictions.not(Exprission.eq()) 不等于

> Restrictions.gt() 大于

>= Restrictions.ge() 大于等于

< Restrictions.lt() 小于

<= Restrictions.le() 小于等于

is null Restrictions.isnull() 等于空值

is not null Restrictions.isNotNull() 非空值

like Restrictions.like() 字符串模式匹配

and Restrictions.and() 逻辑与

and Restrictions.conjunction() 逻辑与

or Restrictions.or() 逻辑或

or Restrictions.disjunction() 逻辑或

not Restrictions.not() 逻辑非

in(列表) Restrictions.in() 等于列表中的某一个值

ont in(列表) Restrictions.not(Restrictions.in())不等于列表中任意一个值

between x and y Restrictions.between() 闭区间xy中的任意值

not between x and y Restrictions.not(Restrictions..between()) 小于值X或者大于值y