Example.or() example.and
可实现: where(条件1 and 条件2)or (条件3and条件4)
或:where条件1 and(条件2or条件3)
Example example = new Example(Std.class);
Criteria criteria1 = example.createCriteria();
Criteria criteria2 = example.createCriteria();
if(!StringUtils.isEmpty(std.getA100())){
criteria1.andLike("a100", "%"+std.getA100()+"%");
}
if(!StringUtils.isEmpty(std.getA200())){
criteria1.andEqualTo("a200", std.getA200());
}
if(!StringUtils.isEmpty(std.getA298())){
criteria2.andLike("a298", "%"+std.getA298()+"%");
criteria2.orLike("a302", "%"+std.getA298()+"%");
}
example.and(criteria2); //需要and或者or连接一下,具体看需要使用
List<Std> list = stdMapper.selectByExample(example);
实现如下sql
SELECT * FROM std WHERE (a100 LIKE ?) AND (a298 LIKE ? OR a302 LIKE ?)