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copied!<p>Try implementing your own RequestFactory in order to achieve preemptive authentication.</p> <pre><code>public class PreEmptiveAuthHttpRequestFactory extends HttpComponentsClientHttpRequestFactory { public PreEmptiveAuthHttpRequestFactory(DefaultHttpClient client) { super(client); } @Override protected HttpContext createHttpContext(HttpMethod httpMethod, URI uri) { AuthCache authCache = new BasicAuthCache(); BasicScheme basicAuth = new BasicScheme(); HttpHost targetHost = new HttpHost(uri.getHost(), uri.getPort()); authCache.put(targetHost, basicAuth); BasicHttpContext localcontext = new BasicHttpContext(); localcontext.setAttribute(ClientContext.AUTH_CACHE, authCache); return localcontext; } } </code></pre> <p>An then just use it:</p> <pre><code>HttpComponentsClientHttpRequestFactory requestFactory = new PreEmptiveAuthHttpRequestFactory( newHttpClient ); </code></pre> <p>Hope it helps</p> <hr> <p><strong>how to set the username and password</strong> (Copied from @bifur's comment)</p> <p>You can use <code>UserNamePasswordCredentials</code> </p> <pre><code>UsernamePasswordCredentials credentials = new UsernamePasswordCredentials(getUsername(),getPassword()); client.getCredentialsProvider().setCredentials(new AuthScope(getHost(), getPort(), AuthScope.ANY_REALM), credentials); </code></pre> <p>And just use the client in the previous factory </p> <pre><code>HttpComponentsClientHttpRequestFactory requestFactory = new PreEmptiveAuthHttpRequestFactory(client); </code></pre>

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