----------------------------------------方法说明

--------------------------QBC常用限定方法-----------------------------------

Restrictions.eq --------------------------------------> equal,等于.

Restrictions.ne --------------------------------------> not-equals,不等于

Restrictions.allEq -----------------------------------> 参数为Map对象,使用key/value进行多个等于的比对,相当于多个Restrictions.eq的效果

Restrictions.gt ---------------------------------------> great-than > 大于

Restrictions.ge --------------------------------------> great-equal >= 大于等于

Restrictions.lt ----------------------------------------> less-than, < 小于

Restrictions.le ---------------------------------------> less-equal <= 小于等于

Restrictions.between ------------------------------> 对应SQL的between子句

Restrictions.like -------------------------------------> 对应SQL的LIKE子句

Restrictions.in ---------------------------------------> 对应SQL的in子句

Restrictions.and -------------------------------------> and 关系

Restrictions.or ---------------------------------------> or 关系

Restrictions.isNull ----------------------------------> 判断属性是否为空,为空则返回true

Restrictions.isNotNull -----------------------------> 与isNull相反

Restrictions.sqlRestriction -----------------------> SQL限定的查询

Order.asc ---------------------------------------------> 根据传入的字段进行升序排序

Order.desc -------------------------------------------> 根据传入的字段进行降序排序

MatchMode.EXACT -------------------------------> 字符串精确匹配.相当于"like 'value'"

MatchMode.ANYWHERE -----------------------> 字符串在中间匹配.相当于"like '%value%'"

MatchMode.START ------------------------------> 字符串在最前面的位置.相当于"like 'value%'"

MatchMode.END ---------------------------------> 字符串在最后面的位置.相当于"like '%value'"

1 importjava.util.ArrayList;2 importjava.util.HashMap;3 importjava.util.List;4 importjava.util.Map;5 importjava.util.Set;6 importjava.util.TreeSet;7 importorg.hibernate.Criteria;8 importorg.hibernate.Hibernate;9 importorg.hibernate.criterion.MatchMode;10 importorg.hibernate.criterion.Order;11 importorg.hibernate.criterion.Restrictions;12 importcom.happy.dao.BaseHibernateDAO;13 importcom.happy.entity.AwardNums;14 importcom.happy.test.util.HandleList;15 public class Restriction extendsBaseHibernateDAO {16 public static voidmain(String[] args) {17 Restriction query = newRestriction();18 query.query();19 }20 @SuppressWarnings("unchecked")21 public voidqueryAlias() {22 Criteria criteria = getSession().createCriteria(AwardNums.class);23 //获取别名：eg：this

24 System.out.println(criteria.getAlias());25 HandleList.print(criteria.list());26 }27 @SuppressWarnings("unchecked")28 public voidqueryOrder() {29 Criteria criteria = getSession().createCriteria(AwardNums.class);30 criteria.addOrder(Order.desc("id"));31 HandleList.print(criteria.list());32 }33 @SuppressWarnings("unchecked")34 public voidqueryBetween() {35 Criteria criteria = getSession().createCriteria(AwardNums.class);36 //第一个参数是属性，第一个是小的数值，第三个是大的数值

37 criteria.add(Restrictions.between("id", 17720820, 17720830));38 HandleList.print(criteria.list());39 }40 @SuppressWarnings("unchecked")41 public voidqueryIdEq() {42 Criteria criteria = getSession().createCriteria(AwardNums.class);43 //id=17720820

44 criteria.add(Restrictions.idEq(17720820));45 HandleList.print(criteria.list());46 }47 @SuppressWarnings("unchecked")48 public voidqueryIlike() {49 Criteria criteria = getSession().createCriteria(AwardNums.class);50 //忽略大小写，05结束的

51 criteria.add(Restrictions.ilike("numbers", "05", MatchMode.END));52 HandleList.print(criteria.list());53 }54 @SuppressWarnings("unchecked")55 public voidqueryLike() {56 Criteria criteria = getSession().createCriteria(AwardNums.class);57 //05介绍的

58 criteria.add(Restrictions.like("numbers", "05", MatchMode.END));59 HandleList.print(criteria.list());60 }61 @SuppressWarnings("unchecked")62 public voidqueryLike2() {63 Criteria criteria = getSession().createCriteria(AwardNums.class);64 //05开始的

65 criteria.add(Restrictions.like("numbers", "05%"));66 HandleList.print(criteria.list());67 }68 @SuppressWarnings("unchecked")69 public voidqueryInArray() {70 Criteria criteria = getSession().createCriteria(AwardNums.class);71 //new int[]错误的

72 Integer[] arrInt = new Integer[] { 17720808, 17720809, 17720810};73 criteria.add(Restrictions.in("id", arrInt));74 HandleList.print(criteria.list());75 }76 @SuppressWarnings("unchecked")77 public voidqueryInList() {78 Criteria criteria = getSession().createCriteria(AwardNums.class);79 //new int[]错误的

80 List list = new ArrayList();81 list.add(17720808);82 list.add(17720809);83 list.add(17720810);84 criteria.add(Restrictions.in("id", list));85 HandleList.print(criteria.list());86 }87 @SuppressWarnings("unchecked")88 public voidqueryInSet() {89 Criteria criteria = getSession().createCriteria(AwardNums.class);90 //new int[]错误的

91 Set set = new TreeSet();92 set.add(17720808);93 set.add(17720809);94 set.add(17720810);95 criteria.add(Restrictions.in("id", set));96 HandleList.print(criteria.list());97 }98 @SuppressWarnings("unchecked")99 public voidqueryInMap() {100 Criteria criteria = getSession().createCriteria(AwardNums.class);101 Map map = new HashMap();102 //String不能命名重复，否者会过滤重复的

103 map.put("1", 17720808);104 map.put("2", 17720809);105 map.put("3", 17720810);106 criteria.add(Restrictions.in("id", map.values()));107 HandleList.print(criteria.list());108 }109 @SuppressWarnings("unchecked")110 public voidqueryIsEmpty() {111 Criteria criteria = getSession().createCriteria(AwardNums.class);112 //Property path [com.happy.entity.AwardNums.issue] does not reference a113 //collection

114 criteria.add(Restrictions.isEmpty("issue"));115 HandleList.print(criteria.list());116 }117 @SuppressWarnings("unchecked")118 public voidqueryIsNotEmpty() {119 Criteria criteria = getSession().createCriteria(AwardNums.class);120 //Property path [com.happy.entity.AwardNums.issue] does not reference a121 //collection

122 criteria.add(Restrictions.isNotEmpty("issue"));123 HandleList.print(criteria.list());124 }125 @SuppressWarnings("unchecked")126 public voidqueryIsNull() {127 Criteria criteria = getSession().createCriteria(AwardNums.class);128 //this_.id is null

129 criteria.add(Restrictions.isNull("id"));130 HandleList.print(criteria.list());131 }132 @SuppressWarnings("unchecked")133 public voidqueryIsNotNull() {134 Criteria criteria = getSession().createCriteria(AwardNums.class);135 //this_.id is not null

136 criteria.add(Restrictions.isNotNull("id"));137 HandleList.print(criteria.list());138 }139 @SuppressWarnings("unchecked")140 public voidquerySizeEq() {141 Criteria criteria = getSession().createCriteria(AwardNums.class);142 //Unknown collection role: com.happy.entity.AwardNums.id

143 criteria.add(Restrictions.sizeEq("id", 15));144 HandleList.print(criteria.list());145 }146 @SuppressWarnings("unchecked")147 public voidquerySqlRestriction() {148 Criteria criteria = getSession().createCriteria(AwardNums.class);149 String alias =criteria.getAlias();150 //_很重要的

151 criteria.add(Restrictions.sqlRestriction(alias + "_.id < 17720812"));152 HandleList.print(criteria.list());153 }154 @SuppressWarnings("unchecked")155 public voidquerySqlRestrictionEasy() {156 Criteria criteria = getSession().createCriteria(AwardNums.class);157 //{alias}.id

158 criteria.add(Restrictions.sqlRestriction("{alias}.id < 17720812"));159 HandleList.print(criteria.list());160 }161 @SuppressWarnings("unchecked")162 public voidquerySqlRestrictionType() {163 Criteria criteria = getSession().createCriteria(AwardNums.class);164 //lower(this_.numbers) like lower(?)

165 criteria.add(Restrictions166 .sqlRestriction("lower({alias}.numbers) like lower(?)", "%09",167 Hibernate.STRING));168 HandleList.print(criteria.list());169 }170 @SuppressWarnings("unchecked")171 public voidqueryConjunction() {172 Criteria criteria = getSession().createCriteria(AwardNums.class);173 //永真情况下查询

174 criteria.add(Restrictions.conjunction());175 HandleList.print(criteria.list());176 }177 @SuppressWarnings("unchecked")178 public voidqueryDisjunction() {179 Criteria criteria = getSession().createCriteria(AwardNums.class);180 //永真情况下查询

181 criteria.add(Restrictions.disjunction());182 HandleList.print(criteria.list());183 }184 @SuppressWarnings("unchecked")185 public voidqueryNaturalId() {186 Criteria criteria = getSession().createCriteria(AwardNums.class);187 //永真情况下查询

188 criteria.add(Restrictions.naturalId());189 HandleList.print(criteria.list());190 }191 @SuppressWarnings("unchecked")192 public voidqueryCompare() {193 Criteria criteria = getSession().createCriteria(AwardNums.class);194 //this_.id=? eq&&ne this_.id<>?

195 criteria.add(Restrictions.eq("id", 17719845));196 //this_.id>=? ge&&le this_.id<=?

197 criteria.add(Restrictions.ge("id", 17719845));198 //this_.id>? gt&&lt this_.id

199 criteria.add(Restrictions.gt("id", 17719845));200 //this_.id<=?

201 criteria.add(Restrictions.le("id", 17719845));202 //this_.id

203 criteria.add(Restrictions.lt("id", 17719845));204 //this_.id<>?

205 criteria.add(Restrictions.ne("id", 17719845));206 HandleList.print(criteria.list());207 }208 @SuppressWarnings("unchecked")209 public voidqueryCompareProperty() {210 Criteria criteria = getSession().createCriteria(AwardNums.class);211 //this_.issue=this_.numbers eq&&ne this_.id<>?

212 criteria.add(Restrictions.eqProperty("id", "issue"));213 //this_.id>=this_.issue ge&&le this_.id<=?

214 criteria.add(Restrictions.geProperty("id", "issue"));215 //this_.id>this_.issue gt&&lt this_.id

216 criteria.add(Restrictions.gtProperty("id", "issue"));217 //this_.id<=this_.issue

218 criteria.add(Restrictions.leProperty("id", "issue"));219 //this_.id

220 criteria.add(Restrictions.ltProperty("id", "issue"));221 //this_.id<>this_.issue

222 criteria.add(Restrictions.neProperty("id", "issue"));223 HandleList.print(criteria.list());224 }225 @SuppressWarnings("unchecked")226 public voidqueryOr() {227 Criteria criteria = getSession().createCriteria(AwardNums.class);228 //或者查询

229 criteria.add(Restrictions.or(Restrictions.eq("id", 17719845),230 Restrictions.eq("id", 17719846)));231 HandleList.print(criteria.list());232 }233 @SuppressWarnings("unchecked")234 public voidqueryAnd() {235 Criteria criteria = getSession().createCriteria(AwardNums.class);236 //并且查询

237 criteria.add(Restrictions.and(Restrictions.eq("id", 17719845),238 Restrictions.eq("issue", "2011100")));239 HandleList.print(criteria.list());240 }241 @SuppressWarnings("unchecked")242 public voidquery() {243 Criteria criteria = getSession().createCriteria(AwardNums.class);244 //排除查询

245 criteria.add(Restrictions.not(Restrictions.eq("id", 17719841)));246 HandleList.print(criteria.list());247 }248 }