手写基于bootstrap的分页后端代码

1、后端实体对象：public class Page<T> { private Long pageNo; // 当前页码 private int pageSize = Base.pageSize; // 页面大小 private int length = Base.pageLength;// 显示页面长度 private Long count;// 总记录数， private Long countPage;// 总页数 private Long first = 1L;// 分页开始数据 private Long last;// 分页结束数据 private Long prev;// 上一页索引 private Long next;// 下一页索引 private String pageHtml; private Long begin; private T t; private List<T> list = new ArrayList<T>();

2、/*** 构造方法，* @param pageNo 页码* @param count 总数*/public Page(Long pageNo, Long count) {this.begin = (pageNo-1)*pageSize;this.pageNo = pageNo;this.pageSize = getPageSize();this.length = getLength();this.count = count;

3、this.countPage = getCountPage();this.first = getFirst();this.last = getLast();this.prev = getPrev();this.next = getNext();this.list = getList();this.pageHtml = getPageHtml();}

4、// 返回页码public Long getPageNo() {return pageNo;}public void setPageNo(Long pageNo) {this.pageNo = pageNo;}// 返回上一页数据public Long getPrev() {if (pageNo <= 1L) {return 1L;} else {return pageNo - 1;}}public Long getNext() {if (pageNo >= getCountPage()) {return getCountPage();} else {return pageNo + 1;}}// 返回总页数public Long getCountPage() {if (count % pageSize == 0) {return count / pageSize;}return count / pageSize + 1;}

5、public Long getCount() {return count;}public void setCount(Long count) {this.count = count;}public Long getFirst() {return first;}public Long getLast() {return getCountPage();}public void setPrev(Long prev) {this.prev = prev;}public void setNext(Long next) {this.next = next;}

6、public int getLength() {return length;}public void setLength(int length) {this.length = length;}public List<T> getList() {return list;}public void setList(List<T> list) {this.list = list;}

7、@Overridepublic String toString() {StringBuilder sb = new StringBuilder();sb.append("<ul id = 'pageUl' class='pagination'>").append("<li onclick='prev()'>").append("<a href='#' aria-label='Previous'>").append("<span aria-hidden='true'>&laquo;</span></a></li>");//判断开始页Long begin = (long) (pageNo - length/2) ;if(begin <= 1L){begin = 1L;}//判断结束页Long end = begin + length - 1;if(end >= countPage){end = countPage;begin = end - length + 1;if (begin < first) {begin = first;}}for(Long i= begin;i <= end;i++){sb.append("<li onclick='change(this,"+"\"\""+")'><a href='#'>"+i+"</a></li>");}//下一页sb.append("<li onclick='next()'><a href='#' aria-label='Next'>"+"<span aria-hidden='true'>&raquo;</span></a></li>");sb.append("<li><a href='#'>共<span id='countPage'>&nbsp;"+countPage+"&nbsp;</span>页</a></li></ul>");return sb.toString();}}