How to set proxy host on HttpClient request in Java

Developer :

I want to set proxy before sending HttpClient request on a URL. As I am able to connect it curl command setting up the proxy but with Java code I am not able to do that.

Curl command:

**curl -I -x IP:80  URL**

Code change done in java file:

HttpClient client = new HttpClient();
System.getProperties().put("http.proxyHost", "someProxyURL");
System.getProperties().put("http.proxyPort", "someProxyPort");
EntityEnclosingMethod method = new PostMethod(url);
method.setRequestEntity(new StringRequestEntity(requestXML, "text/xml", "utf-8"));

With above code changes in my java file I am getting below error :

java.net.ConnectException: Connection refused (Connection refused)

Which shows that I am not able to connect that URL with the proxy I am trying to use to connect the URL.

DontPanic :

I think this could be helpful:

HttpClient client = new HttpClient();

HostConfiguration config = client.getHostConfiguration();
config.setProxy("someProxyURL", "someProxyPort");

Credentials credentials = new UsernamePasswordCredentials("username", "password");
AuthScope authScope = new AuthScope("someProxyURL", "someProxyPort");
client.getState().setProxyCredentials(authScope, credentials);

EntityEnclosingMethod method = new PostMethod(url);
method.setRequestEntity(new StringRequestEntity(requestXML, "text/xml", "utf-8"));