请教为什么用request获不了值
日期：2014-05-16 浏览次数：20336 次
请问为什么用request获不了值?
程序如下,文件名是gg.html,为什么访问http://localhost/gg.html?id=45 的时候,没有打出45出来,反而说网页上有错误?
<html >
<head>
<meta name= "ContentType " content= "text/html " />
<meta name= "CharSet " content= "GB2312 " />
<table>
<tr> <td colspan= "4 "> <input type= "button " value= "drawline " onclick= "javascript:drawCanvas() "/> </td> </tr>
</table>
<script language= "javascript ">
var ff=Request.QueryString[ "id "];
function drawCanvas()
{
Response.Write(ff);
}
</script>
</head>
<body>
</body>
</html>
------解决方案--------------------
<html>
<head>
<meta name= "ContentType " content= "text/html " />
<meta name= "CharSet " content= "GB2312 " />
<table>
<tr> <td colspan= "4 "> <input type= "button " value= "drawline " onclick= "javascript:drawCanvas() "/> </td> </tr>
</table>
<script language= "javascript ">
var ff=location.search;
ff=ff.substr(1,ff.length-1);
var paras = ff.split( "& ");
function getItem(id_name){
var a;
for(var i=0;i <paras.length;i++){
a = paras[i].split( "= ");
if(a[0]==id_name) return a[1];
}
return " ";
}
function drawCanvas()
{
document.write(getItem( "id "));
}
</script>
</head>
<body>
</body>
</html>
程序如下,文件名是gg.html,为什么访问http://localhost/gg.html?id=45 的时候,没有打出45出来,反而说网页上有错误?
<html >
<head>
<meta name= "ContentType " content= "text/html " />
<meta name= "CharSet " content= "GB2312 " />
<table>
<tr> <td colspan= "4 "> <input type= "button " value= "drawline " onclick= "javascript:drawCanvas() "/> </td> </tr>
</table>
<script language= "javascript ">
var ff=Request.QueryString[ "id "];
function drawCanvas()
{
Response.Write(ff);
}
</script>
</head>
<body>
</body>
</html>
------解决方案--------------------
<html>
<head>
<meta name= "ContentType " content= "text/html " />
<meta name= "CharSet " content= "GB2312 " />
<table>
<tr> <td colspan= "4 "> <input type= "button " value= "drawline " onclick= "javascript:drawCanvas() "/> </td> </tr>
</table>
<script language= "javascript ">
var ff=location.search;
ff=ff.substr(1,ff.length-1);
var paras = ff.split( "& ");
function getItem(id_name){
var a;
for(var i=0;i <paras.length;i++){
a = paras[i].split( "= ");
if(a[0]==id_name) return a[1];
}
return " ";
}
function drawCanvas()
{
document.write(getItem( "id "));
}
</script>
</head>
<body>
</body>
</html>
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