Question

This code works for my simple testing login form. It uses POST to log in and then print all the information to the screen from logged view. But it does not work on one specific website I have been creating this code all the way. Any ideas why this is happening and how to fix it?

package visualutopiabot;

import org.apache.http.client.ResponseHandler;
import org.apache.http.impl.client.BasicResponseHandler;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;

    public class Main {

        public static void main(String[] args) throws Exception {

            DefaultHttpClient httpclient = new DefaultHttpClient();
            try {

                /* POST login */
                HttpPost httpost = new HttpPost("http://website.com/login.asp");

                List <NameValuePair> nvps = new ArrayList <NameValuePair>();
                nvps.add(new BasicNameValuePair("username", "nnnnick"));
                nvps.add(new BasicNameValuePair("password", "pppassswww123"));

                httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
                HttpResponse response = httpclient.execute(httpost);
                HttpEntity entity = response.getEntity();
                System.out.println("Login form get: " + response.getStatusLine());
                EntityUtils.consume(entity);

                /* get content*/
                HttpGet httpget = new HttpGet("http://website.com/index.asp");

                System.out.println("executing request " + httpget.getURI());

                // Create a response handler
                ResponseHandler<String> responseHandler = new BasicResponseHandler();
                String responseBody = httpclient.execute(httpget, responseHandler);
                System.out.println("----------------------------------------");
                System.out.println(responseBody);
                System.out.println("----------------------------------------");


            } finally {
                // When HttpClient instance is no longer needed,
                // shut down the connection manager to ensure
                // immediate deallocation of all system resources
                httpclient.getConnectionManager().shutdown();
            }
        }
    }

Answer 1

The answer all along was that I was sending wrong POST queries. Instead of:

nvps.add(new BasicNameValuePair("username", "nnnnick"));
nvps.add(new BasicNameValuePair("password", "pppassswww123"));

Had to write:

nvps.add(new BasicNameValuePair("login", "nnnnick"));
nvps.add(new BasicNameValuePair("pw", "pppassswww123"));