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() {
        }
}