RestTemplate with basic or digest authentication configured

RestTemplateConfigSample.java

HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory(); 
DefaultHttpClient client = (DefaultHttpClient) factory.getHttpClient();
client.getCredentialsProvider().setCredentials(
    new AuthScope(hostName, portNumber), 
    new UsernamePasswordCredentials(username, password));
RestTemplate restTemplate = new RestTemplate(factory);

Thank you!
This is very helpful!