javaproxyhttpclientproxy-authenticationhttp-status-code-407

Proxy setting for HttpClient 4 not working

I am using Apache HttpClient library to connect to url. The network in which i am doing has a secure proxy to it. when i am using the java.net package to connect to the url i just have to add the 

System.setProperty("http.proxyHost", proxy);
System.setProperty("http.proxyPort", proxyPort);

no proxy userid and password is needed to be passed but when i am trying to connect through httpclient i am getting 407 proxy authentication error.My code is:

HttpHost proxy = new HttpHost("xyz.abc.com",8080,"http");
HttpClient httpclient = new DefaultHttpClient();
httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY,proxy);

Proxy is using NTML authentication.I don't want to pass userid and password.

Solution

  • I have upgraded to httpclient 4.2 and this version has out of box NTML support. Just need to add following lines to the code

    HttpClient httpclient = new DefaultHttpClient();
NTCredentials creds = new NTCredentials("user", "pwd", "myworkstation", "microsoft.com");
httpclient.getCredentialsProvider().setCredentials(AuthScope.ANY, creds);

    For further reading Httpclent authentication scheme u can refer http://hc.apache.org/httpcomponents-client-ga/tutorial/html/authentication.html#d5e947

    But my question is still open, why HttpClent is not picking the system proxy as simple java program does.