package com.fdkankan.ucenter.service.impl; import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper; import com.fdkankan.ucenter.entity.UserPlatform; import com.fdkankan.ucenter.mapper.IUserPlatformMapper; import com.fdkankan.ucenter.service.IUserPlatformService; import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import org.springframework.stereotype.Service; import java.util.ArrayList; import java.util.List; import java.util.stream.Collectors; /** *

* 服务实现类 *

* * @author * @since 2024-11-19 */ @Service public class UserPlatformServiceImpl extends ServiceImpl implements IUserPlatformService { @Override public List getByUserId(Long id) { LambdaQueryWrapper wrapper = new LambdaQueryWrapper<>(); wrapper.eq(UserPlatform::getUserId,id); List list = this.list(wrapper); if(list.isEmpty()){ return new ArrayList<>(); } return list.stream().map(UserPlatform::getPlatformKey).collect(Collectors.toList()); } }