有些业务要将某些字段更新位null值，但是又不能影响其它业务，就有了这篇文章。
一、写法
这样写就可以将这些字段置位null值。
代码语言：javascript复制 @Override
public boolean updateByIdCustome(HouseSpace houseSpace) {
//return houseSpaceMapper.updateByIdCustome(houseSpace);
LambdaUpdateWrapper<HouseSpace> wrapper = new LambdaUpdateWrapper<>();
wrapper.eq(HouseSpace::getSpaceId, houseSpace.getSpaceId());
wrapper.set(HouseSpace::getCurrentMoisture, null);
wrapper.set(HouseSpace::getMineral, null);
wrapper.set(HouseSpace::getColorSmell, null);
wrapper.set(HouseSpace::getWholeRiceGrains, null);
wrapper.set(HouseSpace::getYellowGrain, null);
wrapper.set(HouseSpace::getFattyacid, null);
wrapper.set(HouseSpace::getCrudeFattyacid, null);
wrapper.set(HouseSpace::getMucoriferous, null);
wrapper.set(HouseSpace::getMildew, null);
wrapper.set(HouseSpace::getImperfectGrain, null);
wrapper.set(HouseSpace::getCompleteGrain, null);
wrapper.set(HouseSpace::getProteinSolubilization, null);
wrapper.set(HouseSpace::getDamageGrain, null);
wrapper.set(HouseSpace::getGermination, null);
wrapper.set(HouseSpace::getGluten, null);
wrapper.set(HouseSpace::getHardness, null);
wrapper.set(HouseSpace::getGrainHeight, null);
wrapper.set(HouseSpace::getRemark, null);
return this.update(wrapper);
}记录下笔记。
参考文章
https://blog.csdn.net/qq_43718048/article/details/125979551
