空指针错误.....比如:
if(i=0,i<text.length,i++)
{
....... ;
}
如果text开始没有值的话... 肯定NullPointerException;可以这样:
int a=text.length;
if(i=0,i<a,i++)
{
.......;
}就可以了.....
if(i=0,i<text.length,i++)
{
....... ;
}
如果text开始没有值的话... 肯定NullPointerException;可以这样:
int a=text.length;
if(i=0,i<a,i++)
{
.......;
}就可以了.....
<html>
<script LANGUAGE="javascript">
<!--
window.open ("http://www.jspshop.cn/")
-->
</script>
<%@ include file="top.jsp"%><table width="778" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td height="10"></td>
</tr>
</table>
<table width="778" border="0" cellspacing="0" cellpadding="0" align="center" height="148">
<!--DWLayoutTable-->
<tr valign="top">
<td width="180"> <table width="180" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td valign="top">
<%@ include file="dengluyufou.jsp"%>
</td>
</tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0" height="5">
<tr>
<td></td>
</tr>
<tr>
<td></td>
</tr>
</table>
<!--------------------search page------------------------------>
<%@ include file="in-search.jsp"%>
<table width="100%" border="0" cellspacing="0" cellpadding="0" height="5">
<tr>
<td>
<!-------------------topsort------------------------------>
<%@ include file="topsort.jsp"%>
<!-------------------noticenotice------------------------------>
<%@ include file="inludenotice.jsp"%>
</td>
</tr>
</table></td>
<td width="16"> </td>
<!--///////////////////////////midle begin////////////////////////////////////////-->
<td width="408"> <table width="100%">
<!--DWLayoutTable-->
<tr>
<td width="393" height="156">
<%
sql="select * from logo ";
rs=mdb.executeQuery(sql);
if(!rs.next())
{
out.print("暂且没有广告");
}
else
{%>
<a href="<%=rs.getString("url")%>"target="_blank"><img src="<%=rs.getString("banner")%>" width="395" height="118" border="0"></a>
<%
}
%>
</td>
<td> </td>
</tr>
<tr>
<td> <table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="151" id="AutoNumber1" height="20" background="img/fu.gif">
<tr>
<td align="center" width="82"><b>精品推荐</b></td>
<td align="center"> </td>
</tr>
</table></td>
<td> </td>
</tr>
<tr>
<td height="118" valign="top">
<!-- ------------------circulation-------------------------->
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<%
sql="select top 10 * from hw where tuijian=-1 order by hw_id DESC";
rs=mdb.executeQuery(sql);
if(!rs.next())
{
%>
<td width="128" valign="top" align="left" bgcolor="#FFFFFF"><div align="center">
暂且没有推荐商品<br>
</div></td>
<%
}
else
{ int hwid=0;
i=0;
rs.previous();
while(rs.next())
{
i=i+1;
hwid=rs.getInt("hw_id");
%>
<td width="50%"> <br>
商品名称:<%=rs.getString("hw_name")%> <br> <a href="views.jsp?hw_id=<%=hwid%>">
<img border="0" src="<%=rs.getString("hw_pic")%>" width="114" height="83" vspace="6"></a>
<br>
会员价：<%=rs.getInt("hw_cash")%>元 <br> <a target="_blank" href="views.jsp?hw_id=<%=hwid%>">详情</a>
<a href='javascript:openbag(<%=hwid%>)'>定购<img border="0" src="img/order.gif" width="21" height="15"></a>
</td>
<%
if(i%2==0&i>=2)
{
%>
</tr>
<tr>
<%
}
if(i>=10) {
break;
}
}
}
%>
</tr>
</table>
<!-------------------circulation end-------------------------------->
</td>
<td> </td>
</tr>
</table></td>
<!--/////////////////////////////midle end/////////////////////////////////////-->
<td width="174"> <table width="100%" border="0" cellspacing="0" cellpadding="0">
<!--DWLayoutTable-->
<tr>
<td width="174" height="1"></td>
</tr>
<tr>
<td height="388" valign="top">
<%@ include file="paihang.jsp"%>
</td>
</tr>
</table></td>
</tr>
<TR>
<td height="16" colspan="4" valign="top">
<%@ include file="copy.jsp"%>
</td>
</TR>
</table><script language="JavaScript1.2">
var dragswitch=0
var nsx
var nsy
var nstemp
function drag_dropns(name){
temp=eval(name)
temp.captureEvents(Event.MOUSEDOWN | Event.MOUSEUP)
temp.onmousedown=gons
temp.onmousemove=dragns
temp.onmouseup=stopns
}function gons(e){
temp.captureEvents(Event.MOUSEMOVE)
nsx=e.x
nsy=e.y
}
function dragns(e){
if (dragswitch==1){
temp.moveBy(e.x-nsx,e.y-nsy)
return false
}
}function stopns(){
temp.releaseEvents(Event.MOUSEMOVE)
}
var dragapproved=false
function drag_dropie(){
if (dragapproved==true){
document.all.showimage.style.pixelLeft=tempx+event.clientX-iex
document.all.showimage.style.pixelTop=tempy+event.clientY-iey
return false
}
}function initializedragie(){
iex=event.clientX
iey=event.clientY
tempx=showimage.style.pixelLeft
tempy=showimage.style.pixelTop
dragapproved=true
document.onmousemove=drag_dropie
}
if (document.all){
document.onmouseup=new Function("dragapproved=false")
}
function hidebox(){
if (document.all)
showimage.style.visibility="hidden"
else if (document.layers)
document.showimage.visibility="hide"
}
</script>