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How to read HTTP Response Status 

Commons Http Client is a HTTP agent implementation in java supporting client-side authentication, HTTP state management and HTTP connection management. This requires the libraries httpclient-4.1.2.jar, httpcore-4.1.2.jar, httpmime-4.1.2.jar, httpclient-cache-4.1.2.jar, commons-codec.jar and commons-logging-1.1.1.jar to be in classpath. The following example shows how to read response status through Commons Http Client.

File Name  :  
com/bethecoder/tutorials/commons_httpclient/ResponseStatusTest.java 
Author  :  Sudhakar KV
Email  :  kvenkatasudhakar@gmail.com
   
package com.bethecoder.tutorials.commons_httpclient;

import java.io.IOException;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

public class ResponseStatusTest {

  /**
   @param args
   */
  public static void main(String[] args) {
    HttpClient httpclient = new DefaultHttpClient();
    HttpGet httpget = new HttpGet("http://finance.google.com/finance/info?client=ig&q=NASDAQ:GOOG");
    System.out.println("Requesting : " + httpget.getURI());

    try {
      
            HttpResponse response = httpclient.execute(httpget);
            System.out.println("Protocol : " + response.getProtocolVersion());
            System.out.println("Status code : " + response.getStatusLine().getStatusCode());
            System.out.println("Status line : " + response.getStatusLine());
      
      System.out.println("\n\nResponse : ");
      if (response.getEntity() != null) {
        System.out.println(EntityUtils.toString(response.getEntity()));
      }
      
    catch (ClientProtocolException e) {
      e.printStackTrace();
    catch (IOException e) {
      e.printStackTrace();
    finally {
       httpclient.getConnectionManager().shutdown();
    }
  }

}
   

It gives the following output,
Requesting : http://finance.google.com/finance/info?client=ig&q=NASDAQ:GOOG

Protocol : HTTP/1.1
Status code : 200
Status line : HTTP/1.1 200 OK


Response : 

// [
{
"id": "694653"
,"t" : "GOOG"
,"e" : "NASDAQ"
,"l" : "604.33"
,"l_cur" : "604.33"
,"s": "0"
,"ltt":"2:39PM EST"
,"lt" : "Mar 9, 2:39PM EST"
,"c" : "-2.81"
,"cp" : "-0.46"
,"ccol" : "chr"
}
]


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