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public class PageHtml<T> {       public Map showPageHtml(Integer currentPage, Integer pageSize, Integer count) {           //计算总页数         int st = 0, ed = 0, all_pager = 0;         int page_merchant = count / pageSize;         int page_remainder = count % pageSize;         if (page_remainder > 0) {             all_pager = page_merchant + 1;         } else {             all_pager = page_merchant;         }         Map<String, Object> map = new HashMap<String, Object>();           if (all_pager < 5) {             st = 1;             ed = all_pager + 1;//5 + 1;         } else {             if (currentPage < 3) {                 st = 1;                 //最多显示5个页码                 ed = 5 + 1;             } else {                 if (currentPage + 2 < all_pager) {                     st = currentPage - 2;                     ed = currentPage + 2 + 1;                 } else {                     st = all_pager - 5 + 1;                     ed = all_pager + 1;                 }             }         }         StringBuilder sb = new StringBuilder();         sb.append("<nav aria-label=\"Page navigation\">");         sb.append("<ul class=\"pagination\">");         sb.append("<li>");         sb.append("<a aria-label=\"Previous\" onclick=\"prevPage()\">");         sb.append("<span aria-hidden=\"true\">«</span>");         sb.append("</a>");         sb.append("</li>");         sb.append("<li><a onclick=\"firstPage()\">首页</a></li>");         for (int i = st; i < ed; i++) {             if (i == currentPage) {                 sb.append("<li class=\"active\" id=\"selected\"><a onclick=\"pageIndex(" + i + ")\">" + i + "</a></li>");             } else {                 sb.append("<li><a onclick=\"pageIndex(" + i + ")\">" + i + "</a></li>");             }         }         sb.append("<li><a  onclick=\"lastPage()\">尾页</a></li>");         sb.append("<li>");         sb.append("<a aria-label=\"Next\" onclick=\"nextPage()\">");         sb.append("<span aria-hidden=\"true\">»</span>");         sb.append("</a>");         sb.append("</li>");         sb.append("</ul>");         sb.append("</nav>");         String html = sb.toString();         map.put("conut", count);         map.put("html", html);         map.put("pageTotal", all_pager);         return map;     } }

 

 

 

参考

https://www.cnblogs.com/Dominic-Ji/articies/12035722.html