mybatis plus or and 的合并写法实例
我就废话不多说了，大家还是直接看代码吧~int count =hrDeliverEmployContractService.selectCount(new EntityWrapper<HrDeliverEmployContractEntity>()
.eq("pool_id",hrDeliverEmployContract.getPoolId()).andNew().lt("contract_start_date",hrDeliverEmployContract.getContractStartDate()).or().gt("contract_end_date",hrDeliverEmployContract.getContractEndDate()) );
对应的SQL
SELECT COUNT(1)
FROM hr_deliver_employ_contract
WHERE (pool_id = 1) AND (contract_start_date < '2018-07-01 00:00:00.0' OR contract_end_date > '2018-10-31 00:00:00.0');
补充：mybatis plus or使用
QueryWrapper queryWrapper = new QueryWrapper();
queryWrapper .and(wrapper -> wrapper.isNull(“sim”).or().eq(“sim”, “”));
queryWrapper .eq(“is_delete”, “0”);
对应sql语句
select * from vehicle where (sim is null or sim='') and is_delete=‘0'
QueryWrapper queryWrapper = new QueryWrapper();
queryWrapper .eq(“name”,“测试”).or().eq(“sim”,“2”);
对应sql语句
select * from vehicle where name=‘测试' or sim=‘2'
以上为个人经验，希望能给大家一个参考，也希望大家多多支持CodeAE代码之家。如有错误或未考虑完全的地方，望不吝赐教。
原文链接：https://blog.csdn.net/liuming690452074/article/details/82775614
文档来源：服务器之家http://www.zzvips.com/article/180880.html
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