Parsing ElasticSearch Results with Java

gistfile1.jsp

import java.io.BufferedInputStream;
import java.net.URL;
import java.net.URLConnection;
import org.json.JSONArray;
import org.json.JSONObject;

protected void foo () {
  // The input stream from the JSON response
  BufferedInputStream buffer = null;

  // URL objects
  String url = "";
  URL urlObject = null;
  URLConnection con = null;
  String response = "";
 
  // JSON objects
  JSONArray hitsArray = null;
  JSONObject hits = null;
  JSONObject source = null;
  JSONObject json = null;
  
  try {
    // get a JSON object from ElasticSearch
    url = "http://10.49.236.132:9200/dfc/_search?q=";
    
    // configure the URL request
    urlObject = new URL(url);
    con = urlObject.openConnection();
    con.setRequestProperty("User-Agent", "Mozilla/5.0");
      
  	buffer = new BufferedInputStream(con.getInputStream());
    	
  	while (buffer.available()>0) {
  		response += (char)buffer.read();
  	}
  	
    buffer.close();
    
    // parse the JSON response 		
		json = new JSONObject(response);
		hits = json.getJSONObject("hits");
		hitsArray = hits.getJSONArray("hits");
		
		for (int i=0; i<hitsArray.length(); i++) {
  		JSONObject h = hitsArray.getJSONObject(i);
  		source = h.getJSONObject("_source");
  		//string object = (source.getString("the string you want to get"));
  		
    }
  } catch(Exception e) {
    // handle the exception
  }
}