What's the proper way to set the Location header for an HTTP 201 response in a Java Servlet application

Question

Consider the following code sending an HTTP 201 \"Created\" response to the client:

    String url = \"/app/things?id=42\"; // example
    response.setStatus(Htt         


        

Answer 1

You might try

new URL(new URL(request.getRequestURL().toString()), url).toString();

That will at least be smart about canonicalizing away any .. or other oddities. Other than that, I don't think it's much better than string manipulation.