spring MongoDB 集成(分页)

 

 

首页创建分页类

Pagination.java

 

package com.mkfree.framework.common.page;import java.util.List;/**
 * 分页数据类
 * 
 * @author hk
 * 
 *         2012-10-26 下午8:23:15
 */publicclassPagination{/**
	 * 一页数据默认20条
	 */privateint pageSize =20;/**
	 * 当前页码
	 */privateint pageNo;/**
	 * 上一页
	 */privateint upPage;/**
	 * 下一页
	 */privateint nextPage;/**
	 * 一共有多少条数据
	 */privatelong totalCount;/**
	 * 一共有多少页
	 */privateint totalPage;/**
	 * 数据集合
	 */privateListdatas;/**
	 * 分页的url
	 */privateString pageUrl;/**
	 * 获取第一条记录位置
	 * 
	 * @return
	 */publicint getFirstResult(){return(this.getPageNo()-1)*this.getPageSize();}/**
	 * 获取最后记录位置
	 * 
	 * @return
	 */publicint getLastResult(){returnthis.getPageNo()*this.getPageSize();}/**
	 * 计算一共多少页
	 */publicvoid setTotalPage(){this.totalPage =(int)((this.totalCount %this.pageSize >0)?(this.totalCount /this.pageSize +1):this.totalCount /this.pageSize);}/**
	 * 设置 上一页
	 */publicvoid setUpPage(){this.upPage =(this.pageNo >1)?this.pageNo -1:this.pageNo;}/**
	 * 设置下一页
	 */publicvoid setNextPage(){this.nextPage =(this.pageNo ==this.totalPage)?this.pageNo :this.pageNo +1;}publicint getNextPage(){return nextPage;}publicint getTotalPage(){return totalPage;}publicint getUpPage(){return upPage;}publicint getPageSize(){return pageSize;}publicvoid setPageSize(int pageSize){this.pageSize = pageSize;}publicint getPageNo(){return pageNo;}publicvoid setPageNo(int pageNo){this.pageNo = pageNo;}publiclong getTotalCount(){return totalCount;}publicvoid setTotalCount(long totalCount2){this.totalCount = totalCount2;}publicListgetDatas(){return datas;}publicvoid setDatas(Listdatas){this.datas = datas;}publicString getPageUrl(){return pageUrl;}publicvoid setPageUrl(String pageUrl){this.pageUrl = pageUrl;}publicPagination(int pageNo,int pageSize,long totalCount2){this.setPageNo(pageNo);this.setPageSize(pageSize);this.setTotalCount(totalCount2);this.init();}/**
	 * 初始化计算分页
	 */privatevoid init(){this.setTotalPage();// 设置一共页数this.setUpPage();// 设置上一页this.setNextPage();// 设置下一页}}

然后,我们看回

 

MongodbBaseDao.java 添加了以下分页的代码

 

package com.mkfree.framework.common.mongodb;import java.util.List;import org.springframework.data.mongodb.core.MongoTemplate;import org.springframework.data.mongodb.core.query.Query;import org.springframework.data.mongodb.core.query.Update;import com.mkfree.framework.common.page.Pagination;/**
 * mongodb　基础操作类
 * 
 * @author oyhk
 * 
 *         2013-1-22下午5:28:26
 */publicabstractclassMongodbBaseDao{/**
	 * 通过条件查询,查询分页结果
	 * 
	 * @param pageNo
	 * @param pageSize
	 * @param query
	 * @return
	 */publicPaginationgetPage(int pageNo,int pageSize,Query query){long totalCount =this.mongoTemplate.count(query,this.getEntityClass());Paginationpage=newPagination(pageNo, pageSize, totalCount);
		query.skip(page.getFirstResult());// skip相当于从那条记录开始
		query.limit(pageSize);// 从skip开始,取多少条记录Listdatas=this.find(query);
		page.setDatas(datas);return page;}//.......其他代码,请下载源代码吧}

come from internet

源碼見附件