1 Criteria criteria = this.getSession().createCriteria(EquipmentPO.class);
2 criteria. add (Restrictions.allEq(new Map(Restrictions.eq("equipID",new String(" 11020449 ")),Restrictions.eq("equipID",new String(" 11020449 "))));
3 // 注意：between查询条件可解释为查询EquipmentPO对象中的equipID属性值在new String(" 11020449 ")和new String(" 11030137 ")之间的所有记录值（包含两个端点）
4 criteria. add (Restrictions. between ("equipID",new String(" 11020449 "),new String(" 11030137 ")));
5 // 查询结果列表记录按照equipID的属性值来升序排序
6 criteria.addOrder( Order . asc ("equipID")); // 降序方式为： Order . desc ("equipID")
7 // 通过EquipmentPO对象的主键id来查询
8 criteria. add (Restrictions.idEq("402882ac0d3f7ca8010d3f7ef869000b"));
9 Restrictions. like (fieldName, " % " + para + " % ")
10 // 使用ilike方式进行模糊查询
11 criteria. add (Restrictions.ilike("equipID",new String(" % 11020 % ")));
12 // ilike的i即ignore之意,所以这里查询出englishName值为"Optima XL 100K Ultracentrifuge"（忽略大小写）的记录
13 criteria. add (Restrictions.ilike("englishName",new String("Optima XL 100K Ultracentrifuge"),MatchMode.ANYWHERE)); // 这里
14 // 使用in方式有两种形式，即数组或者Collection的方式，可参考如下两个实例
15 // criteria. add (Restrictions. in ("equipID",new String [] {" 11020449 "," 11020450 "})); // 数组参数
16 Collection col = new ArrayList();
17 col. add (new String(" 11020449 "));
18 col. add (new String(" 11020450 "));
19 col. add (new String(" 11020874 "));
20 criteria. add (Restrictions. in ("equipID",col)); // Collection参数
21 // 使用isEmpty / isNotEmpty方式用来判断EquipmentPO对象中的Collection类型的属性是否为空的所有记录
22 // EquipmentPO对象中定义属性private Set equipFunctionDevelopPOs = new HashSet(); // 设备功能开发对象
23 criteria. add (Restrictions.isEmpty("equipFunctionDevelopPOs"));
24 criteria. add (Restrictions.isNotEmpty("equipFunctionDevelopPOs"));
25 // 使用isNull方式查询出所有schoolID属性没有值的记录。说明：Restrictions.isNull判断属性是否为空，为空返回true，反之返回false
26 criteria. add (Restrictions. isNull ("schoolID"));
27 criteria. add (Restrictions.isNotNull("schoolID"));
28 // 与Restrictions.eq正好相反，表示不存在( not in )
29 criteria. add (Restrictions. not (Restrictions.eq("equipID",new String(" 11020449 "))));
30 // 使用Restrictions.sizeEq方式用来查询EquipmentPO对象中的Collection类型的属性equipFunctionDevelopPOs的size为1的所有记录
31 criteria. add (Restrictions.sizeEq("equipFunctionDevelopPOs", 1 ));
32 // 使用sql限定的查询。注意{alias}.chnname这里是指实际表中的字段名而非属性名（不区分大小写）
33 criteria. add (Restrictions.sqlRestriction("{alias}.chnname like (?)"," % 电 % ",Hibernate.STRING));
34 criteria. add (Restrictions.sqlRestriction("{alias}.ENGNAME like (?)"," % ptima % ",Hibernate.STRING));
35 // 如果有多个查询条件，比如between子句的查询则如下：
36 BigDecimal [] unitPrice = {new BigDecimal( 402514 ),new BigDecimal( 614891 )};
37 Type [] types = {Hibernate.BIG_DECIMAL,Hibernate.BIG_DECIMAL};
38 criteria. add (Restrictions.sqlRestriction("{alias}.unit_price between (?) and (?)",unitPrice,types));
39 List list = criteria.list();
40 System.out.println("size ===> " + list.size());
41 return list;
