比较笨的分页方法

gundumw100

Java：
sql += " order by id desc,addtime desc";System.out.println("sql="+sql);String tmp = this.getExpenseService().getCount("Expense", sql);if(tmp==null){tmp = "0";}String first = request.getParameter("first");String up = request.getParameter("up");String down = request.getParameter("down");String last = request.getParameter("last");String page = request.getParameter("page");//int count = Integer.valueOf(tmp);int count=Integer.parseInt(tmp);int max = 0;int pagePer=10;if (count % pagePer != 0) {max = count / pagePer + 1;} else {max = count / pagePer;}if (request.getParameter("page") == null) {page = "1";}int page2 = Integer.parseInt(page) - 1;if (down != null) {page2 += 1;}if (up != null) {page2 -= 1;}if (first != null) {page2 = 0;}if (last != null) {page2 = max - 1;}if (page2 > max - 1) {page2 = max - 1;}if (page2 < 0) {page2 = 0;}if (count < pagePer) {page2 = 0;}List list = this.getExpenseService().getListByHQL("Expense",page2*pagePer,pagePer,sql);System.out.println("list.size="+list.size());request.setAttribute("page", page2 + 1 + "");request.setAttribute("totel", count + "");request.setAttribute("list", list);
html:
<%String pager = (String) request.getAttribute("page");String totel = (String) request.getAttribute("totel");String total = (String) request.getAttribute("total");if (pager == null) {pager = "1";}if (totel == null) {totel = "0";}if (total == null) {total = "0";}%><table width="80%" border="0" cellpadding="0" cellspacing="0" bordercolor="#4DB0E7"  align="center"><tr bgcolor="#FFFFFF"><td width="17%">总记录 <font color='red' ><%=totel%></font> 条 <input class="button_y" name="first" type="submit" value="首页"><input class="button_y" name="up" type="submit" value="上一页"> <input class="button_y" name="down" type="submit" value="下一页"> <input class="button_y" name="last" type="submit" value="末页"></td><td width="17%">当前页为第 <input style="text-align: center" type="text" size="2" name="page" value=<%=pager%> readonly="readonly" /> &nbsp页</td></tr></table>