springboot mongodb分页查询

springboot jpa mongodb

public Page<Recorded> getRecordeds(Integer page, Integer size, Recorded recorded) {
          
   

        if (page<1){
          
   

            page=1;

        }

        Sort sort = new Sort(Sort.Direction.DESC,"createTime");

        Pageable pageable = new PageRequest(page-1,size,sort);

        Query query = new Query();

        //条件id =XX

        Criteria criteria = Criteria.where("callerId").is(recorded.getCallerId());

criteria.and(“status”).is(Recorded.SUCCESS);

if(startTime!=null&&endTime!=null){
          
   

            criteria.andOperator(

                    Criteria.where("createTime").gte(startTime),

                    Criteria.where("createTime").lt(endTime)

            );

        }

query.addCriteria(criteria);

        //mongoTemplate.count计算总数

        long total = mongoTemplate.count(query, Recorded.class);   

        // mongoTemplate.find 查询结果集

        List<Recorded> items = mongoTemplate.find(query.with(pageable), Recorded.class);

        return new PageImpl(items, pageable, total);

    }

分页

package com.tk.portal.utils;

import java.util.List;
/**
 * mongoDb分页对象
 */
public class PageResult<T> {
          
   
	//当前业
    private Integer pageNum;
    //每页的数量
    private Integer pageSize;
    //总共的条数
    private Long total;
    //总共的页数
    private Integer pages;
    //实体类集合
    private List<T> list;

    public Integer getPageNum() {
          
   
        return pageNum;
    }

    public void setPageNum(Integer pageNum) {
          
   
        this.pageNum = pageNum;
    }

    public Integer getPageSize() {
          
   
        return pageSize;
    }

    public void setPageSize(Integer pageSize) {
          
   
        this.pageSize = pageSize;
    }

    public Long getTotal() {
          
   
        return total;
    }

    public void setTotal(Long total) {
          
   
        this.total = total;
    }

    public Integer getPages() {
          
   
        return pages;
    }

    public void setPages(Integer pages) {
          
   
        this.pages = pages;
    }

    public List<T> getList() {
          
   
        return list;
    }

    public void setList(List<T> list) {
          
   
        this.list = list;
    }

}

/**
     * MongDb分页公共方法
     * @param clazz 实体类的class对象
     * @param pageSize 每页的数量
     * @param pageNum 当前的页数
     * @param query query是啥不知道赶紧去查下，相当于sql语句
     * @return
     */
    public PageResult<T> pagination(Class<T> clazz, int pageSize, int pageNum, Query query) {
          
   
        long total = this.mongoTemplate.count(query, clazz);
        Integer pages = (int)Math.ceil((double)total / (double)pageSize);
        if (pageNum <= 0 || pageNum > pages) {
          
   
            pageNum = 1;
        }
        int skip = pageSize * (pageNum - 1);
        query.skip(skip).limit(pageSize);
        List<T> list = mongoTemplate.find(query, clazz);
        PageResult pageResult = new PageResult();
        pageResult.setTotal(total);
        pageResult.setPages(pages);
        pageResult.setPageSize(pageSize);
        pageResult.setPageNum(pageNum);
        pageResult.setList(list);
        return pageResult;
    }