</tr> <tr align="center" class="t1"> <td > <%if(!session.getAttribute("setNum").toString().equals("0")){%> <a href="MachineAction.action?page=1">上一页</a> <%} %> <a href="MachineAction.action?page=2">下一页</a> </td> </tr>
//创建session对象 HttpSession session=ServletActionContext.getRequest().getSession(); if (session.getAttribute("id")==null) { out.print("<script lanaguage='javascript'>alert('请重新登录');window.location='login.jsp';></script>"); out.flush(); out.close(); return null; } if (page.equals("0")) { if (setNum.equals("0")) { session.setAttribute("setNum", setNum); } } //上一页 if (page.equals("1")) { setNum=String.valueOf(Integer.valueOf(session.getAttribute("setNum").toString())-1); } //下一页 else if(page.equals("2")) { setNum=String.valueOf(Integer.valueOf(session.getAttribute("setNum").toString())+1); } session.setAttribute("setNum", setNum);