HTTP request via proxy server

In some cases, we are not allowed to make direct http call to fetch the content.This is due to firewall or org policy. In this case we need to find a way to access outside server via proxy.

Here I am talking about making http call via proxy settings. In this implementation, we need few class to be imported for apache and java net:

import org.apache.http.HttpHost;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.fluent.Request;
import org.apache.http.client.utils.URIBuilder;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URLEncoder;
import java.sql.Timestamp;
import java.util.Date;

First step is to create url where we need to connect to access the content:
  String path = "test.htm";
  URIBuilder builder = new URIBuilder();
  builder.setScheme("http").setHost("www.google.com").setPath(path);
  URI targetUrl = builder.build();
Result:  http://www.google.com/test.htm

Second step is to create proxy server:
HttpHost proxy = new HttpHost("proxy.server.com", "1234", "http");
Result:  http://proxy.server.com:1234

Final step is to make http request call get to access content:
String content = Request.Get(targetUrl).viaProxy(proxy).connectTimeout("2000").socketTimeout("3000").execute().returnContent().asString();