[英]Why does Request.QueryString[“path”] converts all + signs to spaces?
I have a javascript code like this : 我有这样的JavaScript代码:
function OnRequestComplete(result) {
// Download the file
//Tell browser to open file directly
alert(result);
var requestImage = "Handler.ashx?path=" + result;
document.location = requestImage;
}
and Handler.ashx code is like this : 和Handler.ashx代码是这样的:
public void ProcessRequest(HttpContext context)
{
Context = context;
string filePath = context.Request.QueryString["path"];
filePath = context.Server.MapPath(filePath);
}
In filePath we don't have any + signs (spaces instead). 在filePath中,我们没有任何+号(而是空格)。
How can I solve this issue ? 我该如何解决这个问题?
Why does Request.QueryString["path"] converts all + signs to spaces ? 为什么Request.QueryString [“ path”]会将所有+符号转换为空格?
When you correctly encode the query string a space becomes +
and +
becomes %2B
. 当您正确编码查询字符串时,空格变为
+
而+
变为%2B
。 The process of decoding does the reverse, which is why your +
gets turned into a space. 解码的过程相反,这就是为什么
+
变成空格。
The problem is that you didn't encode the query string, and that means it gets decoded incorrectly. 问题是您没有对查询字符串进行编码 ,这意味着它被错误地解码。
var requestImage = "Handler.ashx?path=" + encodeURIComponent(result);
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