mybatis——逆向工程中 where （条件1）and （条件2 or 条件3 or 条件4）
where （条件1）and （条件2 or 条件3 or 条件4）
= where （条件1 and 条件2）or （条件1 and 条件3） or （条件1 and 条件4）
结果 是这样的
WHERE ( birthdate between ? and ? and username like ? ) or( birthdate between ? and ? and email like ? ) or( birthdate between ? and ? and phone like ? )
1. 在Example中每一个criteria相当于一个括号，把里面的内容当作一个整体。
Where(userid=’1’ and name=’2’)
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UserExample example = new UserExample();
UserExample.Criteria c1 = example.createCriteria();
C1.andUseridEqualTo(“1”);
C2.andNameEqualTo(“2”);
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C1.andUseridEqualTo(“1”).andNameEqualTo(“2”);也可
2. 在criteria中没有直接的or。
(1) where(A and B) or (C and D)
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BasePointsExample.Criteria criteria1 = example.createCriteria();
criteria1.andUseridEqualTo('11');
criteria1.andPointnameLike(StringUtil.concatlike('22'));
BasePointsExample.Criteria criteria2 = example.createCriteria();
criteria2.andUsernameEqualTo('33');
criteria2.andPointcontentLike(StringUtil.concatlike('44'));
example.or(criteria2);
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(2)where A and (B or C)
==>(A and B) or (A and C)
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BasePointsExample.Criteria criteria1 = example.createCriteria();
criteria1.andUseridEqualTo('11');
criteria1.andPointnameLike(StringUtil.concatlike('22'));
BasePointsExample.Criteria criteria2 = example.createCriteria();
criteria2.andUseridEqualTo('11');
criteria2.andPointcontentLike(StringUtil.concatlike('33'));
example.or(criteria2);
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