Hibernate 条件查询

3、条件查询【重要】   
    * 可以采用拼字符串的方式传递参数
    * 可以采用 ？来传递参数（索引从0开始）
    * 可以采用 :参数名 来传递参数
    * 如果传递多个参数，可以采用setParamterList方法
    * 在hql中可以使用数据库的函数，如：date_format
    参见：SimpleConditionQueryTest.java   

    ================================================================
    A:
    //可以拼字符串
                List students = session.createQuery("select s.id, s.name from Student s where s.name like '%1%'").list();
                for (Iterator iter=students.iterator(); iter.hasNext();) {
                    Object[] obj = (Object[])iter.next();
                    System.out.println(obj[0] + "," + obj[1]);
                }
    =============================================================
    B.
    Query query = session.createQuery("select s.id, s.name from Student s where s.name like ?");
    //            query.setParameter(0, "%1%");
    //            List students = query.list();
              
                //可以使用？方式传递参数
                //参数的索引从0开始
                //传递的参数值，不用单引号引起来
                //注意方法链编程
                List students = session.createQuery("select s.id, s.name from Student s where s.name like ?")
                                           .setParameter(0, "%1%")
                                           .list();
    =============================================================
    C
    //使用 ：参数名称 的方式传递参数值
                List students = session.createQuery("select s.id, s.name from Student s where s.name like :myname")
                                           .setParameter("myname", "%1%")
                                           .list();
              
                for (Iterator iter=students.iterator(); iter.hasNext();) {
                    Object[] obj = (Object[])iter.next();
                    System.out.println(obj[0] + "," + obj[1]);
                }
    ==============================================================
    D
    //使用 ：参数名称 的方式传递参数值
                List students = session.createQuery("select s.id, s.name from Student s where s.name like :myname and s.id=:myid")
                                           .setParameter("myname", "%1%")
                                           .setParameter("myid", 12)
                                           .list();
    ===============================================================
    E
    //支持in，需要使用setParameterList进行参数传递
                List students = session.createQuery("select s.id, s.name from Student s where s.id in(:myids)")
                                        .setParameterList("myids", new Object[]{1, 2, 3, 4, 5})
                                           .list();
    ==================================================================
    F
    //查询2008年2月创建的学生
                List students = session.createQuery("select s.id, s.name from Student s where date_format(s.createTime, '%Y-%m')=?")
                                        .setParameter(0, "2008-02")
                                           .list();
    ====================================================================
    G
    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
              
                //查询2008-01-10到2008-02-15创建的学生
                List students = session.createQuery("select s.id, s.name from Student s where s.createTime between ? and ?")
                                        .setParameter(0, sdf.parse("2008-01-10 00:00:00"))
                                        .setParameter(1, sdf.parse("2008-02-15 23:59:59"))
                                           .list();