}//使用mongoTemplate查询@TestpublicvoidfindOne01(){Queryquery=newQuery();//构建查询条件Criteriacriteria=newCriteria(); criteria.and("userName").is("happy9527"); query.addCriteria(criteria);Studentone=mongoTemplate.findOne(query, Student.class); System.out.println("one = "+ one); }//根据age聚...
import org.springframework.data.mongodb.core.CollectionOptions; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.data.mongodb.core.query.Criteria; import org.springframework.data.mongodb.core.query.CriteriaDefinition; import org.springframework.data.mongodb.core.valida...
packageorg.ouyushan.spring.boot.data.mongodb.repository;importorg.ouyushan.spring.boot.data.mongodb.entity.User;importorg.springframework.beans.factory.annotation.Autowired;importorg.springframework.data.mongodb.core.MongoTemplate;importorg.springframework.data.mongodb.core.query.Criteria;importorg.springfra...
在项目实际应用中记录mongodb查询指定字段,优化性能问题避免查询其他非必要字段 代码: @RepositorypublicinterfaceMsgRecordRepositoryextendsMongoRepository<MsgCollection,String>{@Query(fields="{'message.msgId' : 1,'message.templateTypeId' : 1,'message.msgType' : 1,'message.msgTitle' : 1,'message.msgSummar...
使用Query和Criteria类 JPA自动生成的查询方法 使用@Query 注解基于JSON查询 1.1 添加maven依赖 <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>2.2.2.RELEASE</version> </dependency> ...
query.with(pageable); // 排序 query.with(new Sort(Direction.ASC, CONSTS.DEVICE_SERIAL_FIELD, CONSTS.DOMAINID_FIELD)); // 查询总数 int count = (int) mongoOperations.count(query, DeviceStatusItem.class, collectionName); List<DeviceStatusItem> items = mongoOperations.find(query, DeviceStatusItem...
The APIs to perform the query or crud operations on mongo documents are the same forMongoRepositoryorMongoTemplate, so we are taking the example ofMongoTemplatewhich is the preferred approach among both. 6.1. Insert Tocreate the new documents that have their_idfieldNULL, we can use the following...
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importorg.springframework.test.context.junit4.SpringRunner;importjava.util.LinkedList;importjava.util.List;@Slf4j@RunWith(SpringRunner.class)@SpringBootTestpublicclassDemoApplicationTests{@AutowiredMemberRepository memberRepository;@AutowiredMongoTemplate mongoTemplate;@TestpublicvoidqueryDemo(){// add SortSort...
@Repository public interface ProductRepository extends MongoRepository<Product, String>, ProductRepositoryGrouping, ProductRepositorySearch { @Query(value = "{?0:{ $elemMatch: { ?1: {$in : ?2} } }, ?3: {$eq : ?4}, ?5: {$eq : ?6}}") List<Product> findByBarcodeAndFilteredAttribute...