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

In case you are using JAX RS, there is a method in javax.ws.rs.core.Response which automatically converts relative URLs:

public static Response.ResponseBuilder created(java.net.URI location)

Create a new ResponseBuilder for a created resource, set the location header using the supplied value.

Parameters:

• location - the URI of the new resource. If a relative URI is supplied it will be converted into an absolute URI by resolving it relative to the request URI.

Note however that there is a bug in the JAX RS implementation CXF which leads to incorrect absolute URLs.