apache httpclient proxy authentication id password

public proxy인경 acl만 가지고 접근제한을 하지만, 

필요에 따라 basic authentication을 이용하여 보안 수준을 조금이나마 올릴 수 있다.

DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.getCredentialsProvider().setCredentials(
    new AuthScope("PROXY HOST", 8080),
    new UsernamePasswordCredentials("username", "password"));

HttpHost targetHost = new HttpHost("TARGET HOST", 443, "https");
HttpHost proxy = new HttpHost("PROXY HOST", 8080);

httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);