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导入maven包
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>1.10.7.RELEASE</version>
</dependency>
分页实际代码
其中的 LearnMdb 为新建的MongDB实体类
import com.baomidou.mybatisplus.plugins.Page;
import com.baomidou.mybatisplus.service.impl.ServiceImpl;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
/**
* @author xuyuntong
* @date 2020/9/25 17:40
*/
@Service
public class PlanLearnServiceImpl extends ServiceImpl<PlanLearnMapper, PlanLearn> implements IPlanLearnService {
@Resource
private MongoTemplate mongoTemplate;
@Override
public PageImpl<LearnMdb> getMyAssociatedCourseList(Integer pageNow,Integer pageSize, String trainclassId) {
Query query = new Query();
query.addCriteria(Criteria.where("trainclassId").is(trainclassId));
query.with(new Sort(Sort.Direction.DESC, "createTime"));
if(pageNow<1){
pageNow = 1;
}
long total = mongoTemplate.count(query, LearnMdb.class);
Pageable pageable = new PageRequest(pageNow-1,pageSize);
List<LearnMdb> items = mongoTemplate.find(query.with(pageable), LearnMdb.class);
PageImpl<LearnMdb> page = new PageImpl(items, pageable, total);
return page;
}
}