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这个语句为什么查不出数据？Criterion cria = Restrictions.like("uname", "三%");
Calendar c = Calendar.getInstance();// java日历类
c.set(2013, 11, 21);
Criterion crib = Restrictions.ge("bith", c.getTime());
Criterion cric = Restrictions.isNull("password");
Criterion crid = Restrictions.and(cria, crib);
cri.add(cria);
这几句分别是什么意思