PageUtil

 package cn.com.qmhd.oto.common;

 import java.io.Serializable;
 import java.util.List;

 import org.springframework.data.domain.PageImpl;

 /**
  * 转换为json时需要的bean
  * @version 1.0
  * @时间 2016年9月14日
  * @描述
  */
 public class Page<T> implements Serializable {

     private static final long serialVersionUID = -3640039664184539350L;
         //当前页
         private long page;
         //前一页
         private long prePage;
         //后一页
         private long nextPage;
         //每页大小
         private long pageSize;
         //总条数
         private long totalCount;
         //总页数
         private long pageCount;
         //当前页数据
         private List<T> rows;
         /**
          * @return the page
          */
         public long getPage() {
             return page;
         }
         /**
          * @param page the page to set
          */
         public void setPage(long page) {
             this.page = page;
         }
         /**
          * @return the prePage
          */
         public long getPrePage() {
             return prePage;
         }
         /**
          * @param prePage the prePage to set
          */
         public void setPrePage(long prePage) {
             this.prePage = prePage;
         }
         /**
          * @return the nextPage
          */
         public long getNextPage() {
             if(nextPage<=0){
                 return 1;
             }else{
                 return nextPage>pageCount?pageCount:nextPage;
             }
         }
         /**
          * @param nextPage the nextPage to set
          */
         public void setNextPage(long nextPage) {
             this.nextPage = nextPage;
         }
         /**
          * @return the pageSize
          */
         public long getPageSize() {
             return pageSize;
         }
         /**
          * @param pageSize the pageSize to set
          */
         public void setPageSize(long pageSize) {
             this.pageSize = pageSize<=0?10:pageSize;
         }
         /**
          * @return the totalCount
          */
         public long getTotalCount() {
             return totalCount;
         }
         /**
          * @param totalCount the totalCount to set
          */
         public void setTotalCount(long totalCount) {
             this.totalCount = totalCount;
         }
         /**
          * @return the pageCount
          */
         public long getPageCount() {
             return pageCount;
         }
         /**
          * @param pageCount the pageCount to set
          */
         public void setPageCount(long pageCount) {
             this.pageCount = pageCount;
         }
         /**
          * @return the rows
          */
         public List<T> getRows() {
             return rows;
         }
         /**
          * @param rows the rows to set
          */
         public void setRows(List<T> rows) {
             this.rows = rows;
         }
         public void resetNextPage(){
             nextPage=page+1;
             this.prePage = page -1>0?page-1:1;
             pageCount=totalCount%pageSize==0?totalCount/pageSize:totalCount/pageSize+1;
         }

         public Page(org.springframework.data.domain.Page<T> pageImpl) {
             if(pageImpl!=null){
                 this.page = pageImpl.getNumber()+1;
                 this.pageSize = pageImpl.getSize();
                 this.rows = pageImpl.getContent();
                 this.totalCount = pageImpl.getTotalElements();
                 this.pageCount = pageImpl.getTotalPages();
                 resetNextPage();
             }
         }
         public Page() {
         }
 }