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