RestTemplate and Cookie - spring

Question

I need to send an HTTP cookie, I'm using RestTemplate:
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.add("Cookie", "SERVERID=c52");
HttpEntity requestEntity = new HttpEntity(null, requestHeaders);
ResponseEntity responses = restTemplate.exchange(webService.getValidateUserUrl(),
HttpMethod.POST, requestEntity, String.class, mapValidateUser);
However, the receiving server doesn't see the cookie.

Answer 1

The default rest template does not use a persistent connetion, here is what I use.
public class StatefullRestTemplate extends RestTemplate
{
private final HttpClient httpClient;
private final CookieStore cookieStore;
private final HttpContext httpContext;
private final StatefullHttpComponentsClientHttpRequestFactory statefullHttpComponentsClientHttpRequestFactory;
public StatefullRestTemplate()
{
super();
HttpParams params = new BasicHttpParams();
HttpClientParams.setRedirecting(params, false);
httpClient = new DefaultHttpClient(params);
cookieStore = new BasicCookieStore();
httpContext = new BasicHttpContext();
httpContext.setAttribute(ClientContext.COOKIE_STORE, getCookieStore());
statefullHttpComponentsClientHttpRequestFactory = new StatefullHttpComponentsClientHttpRequestFactory(httpClient, httpContext);
super.setRequestFactory(statefullHttpComponentsClientHttpRequestFactory);
}
public HttpClient getHttpClient()
{
return httpClient;
}
public CookieStore getCookieStore()
{
return cookieStore;
}
public HttpContext getHttpContext()
{
return httpContext;
}
public StatefullHttpComponentsClientHttpRequestFactory getStatefulHttpClientRequestFactory()
{
return statefullHttpComponentsClientHttpRequestFactory;
}
}
public class StatefullHttpComponentsClientHttpRequestFactory extends HttpComponentsClientHttpRequestFactory
{
private final HttpContext httpContext;
public StatefullHttpComponentsClientHttpRequestFactory(HttpClient httpClient, HttpContext httpContext)
{
super(httpClient);
this.httpContext = httpContext;
}
#Override
protected HttpContext createHttpContext(HttpMethod httpMethod, URI uri)
{
return this.httpContext;
}
}

Answer 2

You can also extend the RestTemplate:
public class CookieRestTemplate extends RestTemplate {
#Override
protected ClientHttpRequest createRequest(URI url, HttpMethod method) throws IOException {
ClientHttpRequest request = super.createRequest(url, method);
request.getHeaders().add("Cookie", "SERVERID=c52");
return request;
}
}