Httpclient 4, error 302. How to redirect?

Question

I want to access one site that first requires an (tomcat server) authentication and then log in with a POST request and keep that user to see the site's pages. I use Httpclient 4.0.1

The first authentication works fine but not the logon that always complains about this error: "302 Moved Temporarily"

I keep cookies & I keep a context and yet nothing. Actually, it seems that the logon works, because if I write incorrect parameters or user||password, I see the login page. So I guess what doesn't work is the automatic redirection.

Following my code, which always throws the IOException, 302:

    DefaultHttpClient httpclient = new DefaultHttpClient();     CookieStore cookieStore = new BasicCookieStore();     httpclient.getParams().setParameter(       ClientPNames.COOKIE_POLICY, CookiePolicy.BROWSER_COMPATIBILITY);      HttpContext context = new BasicHttpContext();     context.setAttribute(ClientContext.COOKIE_STORE, cookieStore);     //ResponseHandler<String> responseHandler = new BasicResponseHandler();      Credentials testsystemCreds = new UsernamePasswordCredentials(TESTSYSTEM_USER,  TESTSYSTEM_PASS);     httpclient.getCredentialsProvider().setCredentials(             new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),             testsystemCreds);      HttpPost postRequest = new HttpPost(cms + "/login");     List<NameValuePair> formparams = new ArrayList<NameValuePair>();     formparams.add(new BasicNameValuePair("pUserId", user));     formparams.add(new BasicNameValuePair("pPassword", pass));     postRequest.setEntity(new UrlEncodedFormEntity(formparams, "UTF-8"));     HttpResponse response = httpclient.execute(postRequest, context);     System.out.println(response);      if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK)         throw new IOException(response.getStatusLine().toString());      HttpUriRequest currentReq = (HttpUriRequest) context.getAttribute(              ExecutionContext.HTTP_REQUEST);     HttpHost currentHost = (HttpHost)  context.getAttribute(              ExecutionContext.HTTP_TARGET_HOST);     String currentUrl = currentHost.toURI() + currentReq.getURI();             System.out.println(currentUrl);      HttpEntity entity = response.getEntity();     if (entity != null) {         long len = entity.getContentLength();         if (len != -1 && len < 2048) {             System.out.println(EntityUtils.toString(entity));         } else {             // Stream content out         }     } 

Answer 1

For 4.1 version:

DefaultHttpClient  httpclient = new DefaultHttpClient();     httpclient.setRedirectStrategy(new DefaultRedirectStrategy() {                         public boolean isRedirected(HttpRequest request, HttpResponse response, HttpContext context)  {             boolean isRedirect=false;             try {                 isRedirect = super.isRedirected(request, response, context);             } catch (ProtocolException e) {                 // TODO Auto-generated catch block                 e.printStackTrace();             }             if (!isRedirect) {                 int responseCode = response.getStatusLine().getStatusCode();                 if (responseCode == 301 || responseCode == 302) {                     return true;                 }             }             return isRedirect;         }     });