在Spring Boot中从MongoDB存储库中查找最大值和最小值

@Repository
public interface YourEntityRepository extends MongoRepository<YourEntity, String> {
}

@Service
public class YourService {
    private final YourEntityRepository repository;
    private final MongoTemplate mongoTemplate;

    public YourService(YourEntityRepository repository, MongoTemplate mongoTemplate) {
        this.repository = repository;
        this.mongoTemplate = mongoTemplate;
    }

    public YourEntity findMaxValue() {
        Query query = new Query().with(Sort.by(Sort.Direction.DESC, "yourField")).limit(1);
        return mongoTemplate.findOne(query, YourEntity.class);
    }

    public YourEntity findMinValue() {
        Query query = new Query().with(Sort.by(Sort.Direction.ASC, "yourField")).limit(1);
        return mongoTemplate.findOne(query, YourEntity.class);
    }
}