JSP分页问题，急啊 在线等高人指点
<%@ page contentType= "text/html;charset=gb2312 "%>
<%@ include file= "conn.jsp "%> //数据库的连接和相关定义
<html>
<head> <title> 通讯录 </title>
</head>
<body background= "image/zuobian.jpg ">
<a href= "index.jsp "> 返回 </a>
<%int ZGBH=0;
String zh=(String)session.getAttribute( "ZGBH ");//zgbh 为用户的编号，同过他找到用户的通讯录
if(zh!=null){
ZGBH=Integer.parseInt(zh);
if(request.getParameter( "flag ")==null){//如果没有查询就输出通讯录表
%>
<table class= "tab " width= "97% " align= "center " cellspacing=1 cellpadding=5 bgcolor=#999999 style= "word-break:break-all; ">
<tr>
<form name= "chacun " method= "post " action= "tliebiao.jsp ">
<td colspan= "7 " align= "right " bgcolor= "#66CCFF " > 按姓名查找
<input name= "lxrxm " type= "text " >
<input type= "submit " name= "submit " value= "查询 "/> </td> <input type= "hidden " name= "flag ">
</FORM>
</tr>
<tr bgcolor= "#2969b5 " height= "22 ">
<td width=8% align=center bgcolor= "#66CCFF " > <font color= "#ffffff " > <b> 姓名 <img src= "image/tou.bmp " /> </b> </font> </td>
<td width=12% align=center bgcolor= "#66CCFF "> <font color= "#ffffff "> <b> 移动电话 </b> </font> </td>
<td width=12% align=center bgcolor= "#66CCFF "> <font color= "#ffffff "> <b> 邮件 </b> </font> </td>
<td width=12% align=center bgcolor= "#66CCFF "> <font color= "#ffffff "> <b> 办公电话 </b> </font> </td>
<td width=15% align=center bgcolor= "#66CCFF "> <font color= "#ffffff "> <b> 工作单位 </b> </font> </td>
<td width=19% align=center bgcolor= "#66CCFF "> <font color= "#ffffff "> <b> 家庭地址 </b> </font> </td>
<td width=12% align=center bgcolor= "#66CCFF "> <font color= "#ffffff "> <b> 操作 </b> </font> </td>
</tr>
<tr bgcolor=#ffffff>
<td colspan=6 height=15> </td>
<td width= "10% "align= "center " title= "新增成员 "> <a href= "txinjia.jsp?ZGBH= <%=ZGBH%> "> <font size=2> 新增联系人 </font> </a> </td>
</tr>
<%
int curpage=1;//当前页
int page_record=6;//每页显示的记录数
curpage=Integer.parseInt(request.getParameter( "page ")）;//获取传递的值，需要显示的页 //也就是这里老报错说里面的为NULL 不知道怎么解决
String sql= "select top "+page_record+ " * from ZZ_TXLB where ZGBH= ' "+ZGBH+ " ' and LXRXH not in (select top "+(curpage*page_record)+ " * form ZZ_TXLB where ZGBH= ' "+ZGBH+ " ') ";
rs=stmt.executeQuery(sql);
int lxrxh=0;
while(rs.next()){
lxrxh=rs.getInt(1);
%>
<tr align= "center " valign= "middle " bgcolor= "#FFFFFF "> </tr>
<tr bgcolor= "#999999 " align=center>
<td align=center bgcolor= "#d0e7ff "> <font size=2> <%=rs.getString( "LXRXM ")%> </font> </td>
<td bgcolor= "#d0e7ff "> <font size=2> <%=rs.getString( "YDDH ")%> </font> </td>
<td bgcolor= "#d0e7ff "> <font size=2> <%=rs.getString( "EMAIL ")%> </font> </td>
<td bgcolor= "#d0e7ff "> <font size=2> <%=rs.getString( "BGDH ")%> </font> </td>
<td bgcolor= "#d0e7ff "> <font size=2> <%=rs.getString( "GZDW ")%> </font> </td>
<td bgcolor= "#d0e7ff "> <font size=2> <%=rs.getString( "JTDZ ")%> </font> </td>
<td bgcolor= "#d0e7ff "> <a href= "tgenggai.jsp?LXRXH= <%=lxrxh%> "> <font size=2> 改 </font> </a> | <a href= "tshanchu.jsp?LXRXH= <%=lxrxh%> "> <font size=2> 删除 </font> </a> </td>
</tr>
<tr>
<td colspan= "7 " height= "3 " bgcolor= "#FFFFFF "> </td>
</tr>
<% }
%>
</table>
<center>
<form method= "POST " action= "tliebiao.jsp "> //提叫本页处理
<%if(curpage> 0){%> <a
href= "tliebiao.jsp?page= <%=curpage+1%> "> 下一页
</a> <%}%> <%if(curpage> 1){%> <a href= "tiliebiao.jsp?page= <%=curpage-1%> ">
上一页 </a> <%}%>
转到第: <input type= "text " name= "page " size= "8 "> 页
<span> <input type= "submit " name= "Submit " value= "GO " /> </span>
</form>
</center>
<%
}else{//如果有查询就弹出小窗口显示查询结果
String LXRXM=request.getParameter( "lxrxm ");
byte[] tmpbyte=LXRXM.getBytes( "ISO8859_1 ");
LXRXM=new String(tmpbyte);%>
<script language= "javascript ">
function load()
{
window.open( "tchaxun.jsp?LXRXM= <%=LXRXM%> ", "toolbar=no,menubai=no,width=100,height=100 ");
}
</script>
<body onLoad= "load() ">
<%}
stmt.close();
conn.close();
}
%>
</body>
</html>
报错信息
org.apache.jasper.JasperException: An exception occurred processing JSP page /tliebiao.jsp at line 40
37: <td colspan=6 height=15> </td>
38: <td width= "10% "align= "center " title= "新增成员 "> <a href= "txinjia.jsp?ZGBH= <%=ZGBH%> "> <font size=2> 新增联系人 </font> </a> </td>
39: </tr>
40: <%
41: int curpage=1;//当前页
42: int page_record=6;//每页显示的记录数
43: //用下面的方法（sql查询完成，速度快）
java.lang.NumberFormatException: null
它报错40行 我想是后面的得到的为空
请高手指点
[解决办法]
curpage=Integer.parseInt(request.getParameter( "page ")）;//获取传递的值，需要显示的页 //也就是这里老报错说里面的为NULL 不知道怎么解决
改为
String Page =request.getParameter( "page ");
if(Page==null)
{
curpage=1;
}else
{
curpage=Integer.parseInt(Page);
}
再试试！！！
[解决办法]
String Page =request.getParameter( "page ")==null? "1 ":request.getParameter( "page ");
[解决办法]
在
curpage=Integer.parseInt(request.getParameter( "page ")）;//获取传递的值，需要显示的页 //也就是这里老报错说里面的为NULL 不知道怎么解决
前面要加个判断，因为页面初始化的时候没有传递page这个参数，所以会出错，判断如下：
if(null != request.getParameter( "page "))
{
curpage=Integer.parseInt(request.getParameter( "page ").toString());
}
[解决办法]
String Page =request.getParameter( "page ")==null? "1 ":request.getParameter( "page ");
这样写。顶楼上的
[解决办法]
curpage=Integer.parseInt(request.getParameter( "page ")）
改成curpage=Integer.parseInt(（String）request.getParameter( "page ")）试试
我的异常网推荐解决方案：An exception occurred processing JSP page,http://www.myexception.cn/j2se/33144.html
