Jersey - Redirect after POST to outside URL

问题:

I'm using Jersey to create REST API. I have one POST method and as a response from that method, user should be redirected to custom URL like http://example.com that doesn't have to be related to API.

I was looking at other similar questions on this topic here, but didn't find anything that I could use.

回答1:

I'd suggest altering the signature of the JAX-RS-annotated method to return a javax.ws.rs.core.Response object. Depending on whether you intend the redirection to be permanent or temporary (i.e. whether the client should update its internal references to reflect the new address or not), the method should build and return a Response corresponding to an HTTP-301 (permanent redirect) or HTTP-302 (temporary redirect) status code.

Here's a description in the Jersey documentation regarding how to return custom HTTP responses: https://jersey.java.net/documentation/latest/representations.html#d0e5151. I haven't tested the following snippet, but I'd imagine that the code would look something like this, for HTTP-301:

@POST
public Response yourAPIMethod() {
    URI targetURIForRedirection = ...;
    return Response.seeOther(targetURIForRedirection).build();
}

...or this, for HTTP-302:

@POST
public Response yourAPIMethod() {
    URI targetURIForRedirection = ...;
    return Response.temporaryRedirect(targetURIForRedirection).build();
}