mybatisplus一个入参查询两个字段用and，集合元素之间用或

1 List<TechnologyParamPackageMaterialVo> materialVoList = new ArrayList<>();
2 
3 LambdaQueryWrapper<TechnologyParamPackage> wrapper = new LambdaQueryWrapper<>();
4 wrapper.eq(ObjUtil.isNotEmpty(queryReq.getStatus()),TechnologyParamPackage::getStatus,queryReq.getStatus());
5 materialVoList.forEach(e ->{
6     wrapper.or().eq(TechnologyParamPackage::getParamPackageCode,e.getParamPackageCode())
7             .eq(TechnologyParamPackage::getParamPackageVersion,e.getParamPackageVersion());
8 });
9 wrapper.orderByDesc(TechnologyParamPackage::getCreateTime);


主要就是这个wrapper.or(),出来的效果为如下

 1 SELECT 
 2     param_package_name,
 3     param_package_version,
 4     technology_code,
 5     technology_version,
 6     `STATUS`
 7 FROM
 8     technology_param_package 
 9 WHERE
10     del_flag = '0' 
11     AND (  
12         param_package_code = '002' 
13         AND param_package_version = 2 
14         OR param_package_code = 'package0603' 
15         AND param_package_version = 603 
16         OR param_package_code = 'packagecode03' 
17         AND param_package_version = 3 
18         OR param_package_code = 'devtest001' 
19         AND param_package_version = 1 
20     ) 
21 ORDER BY
22     create_time DESC

这里记录主要是使用mybatisplus的LambdaQueryWrapper，里面的两个字段用and，之外用or去隔开

因为开发中用到多次，所以做个记录

第二个是如下：

if (StrUtil.isNotEmpty(queryReq.getSearchCodeAndName())){
    wrapper.like(Maintenance::getMaintenanceCode,queryReq.getSearchCodeAndName()).or().like(Maintenance::getMaintenanceName,queryReq.getSearchCodeAndName());
}

效果如下

SELECT 
    maintenance_code,
    maintenance_name,
    maintenance_period,
    maintenance_position,
    operation_method,
    standard
FROM
    maintenance 
WHERE
    del_flag = '0' 
    AND ( maintenance_code LIKE '%a%' OR maintenance_name LIKE '%a%' ) 
ORDER BY
    create_time DESC

这个是传入一个参数，查询两个字段，用or去区分隔开