There are Several ways of doing this. Following most popular ways. We can also consider
this as REST Web services client.

i) By using HTTPConnectionURL :
public class URLConnectionReader {
    public static void main(String[] args) throws Exception {
        URL oracle = new URL("http://www.yourwebsite.com/");
        URLConnection yc = oracle.openConnection();
        BufferedReader in = new BufferedReader(new InputStreamReader( yc.getInputStream()));
        String inputLine;
        while ((inputLine = in.readLine()) != null)
            System.out.println(inputLine);
        in.close();
    }
}

ii) By using Apache HttpClient :
          HttpClient client = new DefaultHttpClient();
                HttpPost post = new HttpPost("http://yourhost/QueueTester/messageSender.do");
                try {
                        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
                        nameValuePairs.add(new BasicNameValuePair("jmsMessage","http post"));
                        post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                        HttpResponse response = client.execute(post);
                        BufferedReader rd = new BufferedReader(
      new InputStreamReader(response.getEntity().getContent()));

                        String line = "";
                        while ((line = rd.readLine()) != null) {
                                System.out.println(line);
                   }
        } catch (IOException e) {
                        e.printStackTrace();
                }

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