查询数据列表

Criteria criteria = new Criteria();
Query query = new Query(criteria);
List<Document_Name> documents = mongoTemplate.find(query, Document_Name.class, "collect_name");

分页查询数据列表

Criteria criteria = new Criteria();
Query query = new Query(criteria);
Pageable pageable = PageRequest.of(0, 10); // 第一页，每页10个文档  
List<Document_Name> documents = mongoTemplate.find(query.with(pageable), Document_Name.class, "collect_name");

查询数据总数

@Service  
public class DeviceService {  @Autowired  private MongoTemplate mongoTemplate;  public long countDevices() {  // 假设你的设备信息存储在名为"devices"的集合中  String collectionName = "collect_name";  Criteria criteria = new Criteria();Query query = new Query(criteria);// 使用MongoTemplate的count方法查询集合中的文档总数  return mongoTemplate.count(query, collectionName);  }  
}