基于SSM框架的宠物领养系统的设计源码

package com.sms.pet.pojo; import java.util.List; /** * 存放分页相关的数据 * */ public class PageModel { //基本属性 currentPageNum private int currentPageNum;//当前页数，由用户指定 * private int offsetNum;//offset后面的变量 public int getOffsetNum() { return (currentPageNum-1)*5; } public void setOffsetNum(int offsetNum) { this.offsetNum = offsetNum; } private static int pageSize = 5 ;//每页显示的条数，固定的 * private int totalRecords;//总记录条数，数据库查出来的 * private int totalPageNum;//总页数，计算出来的 * private int startIndex;//每页开始记录的索引，计算出来的 * private int prePageNum;//上一页 * private int nextPageNum;//下一页 * private List records;//已经分好页的结果集,该list中只有10条记录 //扩展属性 //一共每页显示9个页码按钮 private int startPage;//开始页码 private int endPage;//结束页码 //完善属性 private String url; //要想使用我的分页，必须给我两个参数。一个是要看哪一页，另一个是总记录条数 public PageModel(int currentPageNum,int totalRecords,int pageSize){ this.currentPageNum = currentPageNum; this.totalRecords = totalRecords; this.pageSize=pageSize; // this.prePageNum = currentPageNum-1; // this.nextPageNum = currentPageNum+1; //计算查询记录的开始索引 startIndex = (currentPageNum-1)*pageSize; //计算总页数 totalPageNum = totalRecords%pageSize==0?(totalRecords/pageSize):(totalRecords/pageSize+1); startPage = currentPageNum - 4; //5 endPage = currentPageNum + 4; //13 //看看总页数够不够9页 if(totalPageNum>9){ //超过了9页 if(startPage < 1){ startPage = 1; endPage = startPage+8; } if(endPage>totalPageNum){ endPage = totalPageNum; startPage = endPage-8; } }else{ //不够9页 startPage = 1; endPage = totalPageNum; } } public String getUrl() { return url; } public void setUrl(String url) { this.url = url; } public int getStartPage() { return startPage; } public void setStartPage(int startPage) { this.startPage = startPage; } public int getEndPage() { return endPage; } public void setEndPage(int endPage) { this.endPage = endPage; } public int getPrePageNum() { prePageNum = currentPageNum-1; if(prePageNum<1){ prePageNum = 1; } return prePageNum; } public int getNextPageNum() { nextPageNum = currentPageNum+1; if(nextPageNum>totalPageNum){ nextPageNum = totalPageNum; } return nextPageNum; } public int getCurrentPageNum() { return currentPageNum; } public void setCurrentPageNum(int currentPageNum) { this.currentPageNum = currentPageNum; } public int getPageSize() { return pageSize; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int getTotalRecords() { return totalRecords; } public void setTotalRecords(int totalRecords) { this.totalRecords = totalRecords; } public int getTotalPageNum() { return totalPageNum; } public void setTotalPageNum(int totalPageNum) { this.totalPageNum = totalPageNum; } public int getStartIndex() { return startIndex; } public void setStartIndex(int startIndex) { this.startIndex = startIndex; } public void setPrePageNum(int prePageNum) { this.prePageNum = prePageNum; } public void setNextPageNum(int nextPageNum) { this.nextPageNum = nextPageNum; } public List getRecords() { return records; } public void setRecords(List records) { this.records = records; } @Override public String toString() { return "PageModel [currentPageNum=" + currentPageNum + ", offsetNum=" + offsetNum + ", totalRecords=" + totalRecords + ", totalPageNum=" + totalPageNum + ", startIndex=" + startIndex + ", prePageNum=" + prePageNum + ", nextPageNum=" + nextPageNum + ", records=" + records + ", startPage=" + startPage + ", endPage=" + endPage + ", url=" + url + "]"; } }