从编码链接ASP.NET获取参数? [英] Getting Parameter From Encoded Link ASP.NET ?

问题描述

我必须从编码链接中获取参数.

链接的第一种格式如下: About.aspx?parameter = bla

但是由于需要，链接像
一样发送给用户
About.aspx?parameter％3Dbla

从链接 About.aspx?parameter％3Dbla ，我应该获取参数(bla).
当我尝试使用
正常获取参数时 Request.QueryString ["parameter"]或HttpContext.Current.Request ["parameter"]，它们返回null.

感谢您的提前答复..

I have to get a parameter from an encoded link .

The first format of link is like : About.aspx?parameter=bla

But because of a requirement the link is sended to the user like

About.aspx?parameter%3Dbla

From the link About.aspx?parameter%3Dbla , I should get the parameter(bla).
When I try to get parameter normally with
Request.QueryString["parameter"] or HttpContext.Current.Request["parameter"] , they returns null.

Thanks for the replies in advance..

推荐答案

发生的事情是，查询字符串中的"="已被htmlencoded为％3D.您需要先修复使用querystring创建此url的所有内容，以使其正确显示为About.aspx?parameter=bla

What has happened is that the "=" in your querystring has gotten htmlencoded into %3D. You need to fix whatever is creating this url with querystring first so that it appears properly like About.aspx?parameter=bla

它不是适当的解决方案，但可能会对您有所帮助，
只需将编码后的值保留在temp中，然后再次对其进行解码，并根据需要使用该查询字符串值即可:

Hi,its not a proper solution but it might help you,
just hold the encoded value in temp and then again decode it and use that query string value as you want to use:

public partial class About : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        var myString = "parameter=\"bla\"";
        var base64EncodedString = Convert.ToBase64String(ASCIIEncoding.ASCII.GetBytes(myString));
        Response.Redirect("Default.aspx?temp=" + base64EncodedString);
    }
}

现在为Default.aspx.cs页面编码:
---------------------------------------

now code for Default.aspx.cs page:
---------------------------------------

public partial class _Default : System.Web.UI.Page
  {
      protected void Page_Load(object sender, EventArgs e)
      {
          var originalString = ASCIIEncoding.ASCII.GetString(Convert.FromBase64String(Request.QueryString["temps"]));
          lblShowName.Text = Request.QueryString["parameter"];
      }
  }

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