Hibernate（随手记）

HQL运算符

QBC运算符

含义

=

Restrictions.eq()

等于equal

<> 

Restrictions.ne()

不等于not equal

> 

Restrictions.gt()

大于greater than

>=

Restrictions.ge()

大于等于greater than or equal

< 

Restrictions.lt()

小于less than

<=

Restrictions.le()

小于等于less than or equal

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

not 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

注：Restrictions.ge("id",20)  表示id大于等于20

很屌的一个功能

StringBuffer queryStringBuffer = new StringBuffer();
        queryStringBuffer.append("SELECT DISTINCT(u) From User u");
        queryStringBuffer.append(" JOIN u.userRelativeList ur");
        queryStringBuffer.append(" WITH ur.isDeleted =:isDeleted");
        if (org.springframework.util.StringUtils.hasText(dto.getKeyword())) {
            queryStringBuffer.append(" AND (ur.realName LIKE :keyword");
            queryStringBuffer.append(" OR ur.mobile LIKE :keyword");
            queryStringBuffer.append(" OR ur.email LIKE :keyword");
            queryStringBuffer.append(" OR ur.nickName LIKE :keyword)");
        }
        if (dto.getConfirmStatus() != null && dto.getConfirmStatus()) {
            queryStringBuffer.append(" JOIN u.certificateList uc");
            queryStringBuffer.append(" WITH uc.isDeleted =:isDeleted");
            queryStringBuffer.append(" AND uc.status = :status");
        }