How to make permanent 301 redirect work when there are parameters in the query string?

Question

I moved some of my old asp pages to new aspx website. In all of the old pages i used (for file example.asp):

Response.Status = "301 Moved Permanently"; 
Response.AddHeader("Location","http://www.example.com/example.aspx");

The problem is that when the page example.com/example.asp?param=value&param2=value2
is requested - the redirect ain't working...

Anyone...?

Answer 1

This solution will work from a classic ASP page. Basically an example of what smelch said.

<%@ Language=VBScript %>
<%
Response.Status="301 Moved Permanently"
Response.AddHeader "Location", "http://www.test.com/default.aspx?" + Request.QueryString
Response.End
%>

Answer 2

Add the query string parameters to the end of the location header, separated by a question mark. I believe it is in Request.Url.Query.

Answer 3

You could try something like this to ensure the query-string is carried across:

protected void Page_Load(object sender, EventArgs e)
{
    Response.Status = "301 Moved Permanently";
    string sQueryString = this.Request.ServerVariables["QUERY_STRING"];
    Response.AddHeader("Location", String.Format("http://www.domain.com/example.aspx?{0}",   sQueryString));
}