Android (Java) URLConnection ich verzweifel

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLEncoder;

/**

 *

 * A complete Java class that shows how to open a URL, then read data (text) from that URL,

 * HttpURLConnection class (in combination with an InputStreamReader and BufferedReader).

 *

 * @author alvin alexander, devdaily.com.

 *

 */

public class Main

{

  public static void main(String[] args)

  throws Exception

  {

    new Main();

  }

  public Main()

  {

    try

    {

      String myUrl = "http://www.amazon.de";

      // if your url can contain weird characters you will want to 

      // encode it here, something like this:

      // myUrl = URLEncoder.encode(myUrl, "UTF-8");

      String results = doHttpUrlConnectionAction(myUrl);

      System.out.println(results);

    }

    catch (Exception e)

    {

      // deal with the exception in your "controller"

    }

  }

  /**

   * Returns the output from the given URL.

   * 

   * I tried to hide some of the ugliness of the exception-handling

   * in this method, and just return a high level Exception from here.

   * Modify this behavior as desired.

   * 

   * @param desiredUrl

   * @return

   * @throws Exception

   */

  private String doHttpUrlConnectionAction(String desiredUrl)

  throws Exception

  {

    URL url = null;

    BufferedReader reader = null;

    StringBuilder stringBuilder;

    try

    {

      // create the HttpURLConnection

      url = new URL(desiredUrl);

      HttpURLConnection connection = (HttpURLConnection) url.openConnection();

      // just want to do an HTTP GET here

      connection.setRequestMethod("GET");

      // uncomment this if you want to write output to this url

      //connection.setDoOutput(true);

      // give it 15 seconds to respond

      connection.setReadTimeout(15*1000);

      connection.connect();

      // read the output from the server

      reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));

      stringBuilder = new StringBuilder();

      String line = null;

      while ((line = reader.readLine()) != null)

      {

        stringBuilder.append(line + "\n");

      }

      return stringBuilder.toString();

    }

    catch (Exception e)

    {

      e.printStackTrace();

      throw e;

    }

    finally

    {

      // close the reader; this can throw an exception too, so

      // wrap it in another try/catch block.

      if (reader != null)

      {

        try

        {

          reader.close();

        }

        catch (IOException ioe)

        {

          ioe.printStackTrace();

        }

      }

    }

  }

}

URL url = new URL("http://blabla");

HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();

conn.setReadTimeout(10000);

conn.setConnectTimeout(15000);

conn.setRequestMethod("POST");

conn.setDoInput(true);

conn.setDoOutput(true);

List<NameValuePair> params = new ArrayList<NameValuePair>();

params.add(new BasicNameValuePair("firstParam", paramValue1));

params.add(new BasicNameValuePair("secondParam", paramValue2));

params.add(new BasicNameValuePair("thirdParam", paramValue3));

OutputStream os = conn.getOutputStream();

BufferedWriter writer = new BufferedWriter(

        new OutputStreamWriter(os, "UTF-8"));

writer.write(getQuery(params));

writer.flush();

writer.close();

os.close();

conn.connect();