ASP programming hide the real address of the picture

Generally, the site's picture code is like this.

Right click on the picture, select Properties can see the real address of the picture. This lets other website have opportunity, hotlinking the picture of your website. We can use a little trick to prevent this.

Create a new showimg.asp (or showimg.php) file (this article is in ASP syntax, in fact, PHP in addition to the syntax is different, the basic idea is the same), it has to do is from the request to take the value of the file. As follows:

<%
Dim filename
filename=request("file")
response.Redirect "attachments/" & filename & ".jpg"
%>

Change the picture code to the following way:

Right-click on the picture, select the attribute to see the address will be: http://localhost/showimg.asp?file=test