semovy

DetachedCriteria detachedCriteria =DetachedCriteria.forClass(UserVO.class)
 //.add(Restrictions.like("username","sz",MatchMode.ANYWHERE));
   .add(org.hibernate.criterion.Expression.disjunction()  //or查詢把add放到外面是and查詢,MatchMode.ANYWHERE糊查詢
        .add(org.hibernate.criterion.Property.forName("username").like("s", MatchMode.ANYWHERE))
        .add(org.hibernate.criterion.Property.forName("password").like("c", MatchMode.ANYWHERE))
        );

多對一情況  
DetachedCriteria  zlbdc=DetachedCriteria.forClass(ZlZlxm.class, "zlb");
                     //  .createAlias("zlb.zl", "t")
                        // .setProjection(Property.forName("t.id").count())
                       //.add(Property.forName("t.id").eq(new  Long(1)))
                       org.hibernate.criterion.Projection projection=org.hibernate.criterion.Projections.projectionList()
                                   .add(org.hibernate.criterion.Property.forName("zlb.fdxx"),"id");
                       zlbdc.setProjection(projection);
                                     //zlbdc.createCriteria("zl");//加上這句是內(nèi)聯(lián)接(inner join)zl為集合
投影查詢，得到一是object[]

  DetachedCriteria  zlbdc=DetachedCriteria.forClass(ZlZlxm.class, "zlb")
  //zlbdc.createCriteria("zl"); //此處為對象
                       .createAlias("zlb.zl", "t") //別名
                       .setProjection(Property.forName("t.id").count())
                       .add(Property.forName("t.id").eq(new  Long(1))); //這里統(tǒng)計的是個數(shù)內(nèi)聯(lián)接(inner join)
         //zladc.setFetchMode("zla.zlZlxm", org.hibernate.FetchMode.JOIN);//無作用(集合lazy)？？？，如果not lazy將會是全部查出