关系管理系统:分页jsp显示上一页下一页...

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 当前第[${page.pagenum }]页   
    <a href="${page.url }?pagenum=1">首页</a>
    <c:if test="${page.pagenum>1}">
    <a href="${page.url }?pagenum=${page.pagenum-1 }">上一页</a>
    </c:if>
     
    <c:forEach var="pagenum" begin="${page.startPage}" end="${page.endPage}">
        [<a href="${page.url }?pagenum=${pagenum}">${pagenum }</a>]
    </c:forEach>  
     
    
    <c:if test="${page.pagenum<page.totalpage}">
    <a href="${page.url }?pagenum=${page.pagenum+1 }">下一页</a>
    </c:if>
    <a href="${page.url }?pagenum=${page.totalpage}">末页</a>
       
    共[${page.totalpage }]页,共[${page.totalrecord}]纪录,
    
    <input type="text" style=" 30px" id="pagenum">
    <input type="button" value=" GO " onclick="goWhich(document.getElementById('pagenum'))">
    
    <script type="text/javascript">
        function goWhich(input){
            var pagenum = input.value;
            if(pagenum==null || pagenum==""){
                alert("请输入页码！");
                return;
            }
            
            if(!pagenum.match("\d+")){
                alert("请输入数字！");
                input.value="";
                return;
            }
            
            if(pagenum<1 || pagenum>${page.totalpage}){
                alert("无效的页码！");
                input.value="";
                return;
            }
            window.location.href="${page.url }?pagenum=" + pagenum;
        }
    </script>