[android-developers] Re: HttpURLConnection with POST method

[Alan]

Thank you so much for sharing that link... it helped me a great deal.
I wound up combining parts of that code with others to come up with
this:

/* Note: these are some methods in a class I wrote. "mURLString" is
the url to
*       talk to such as "http://somesite/somefile.php";; "parameters" are the
parameters to use for the POST, such
*       as "param1=abc&param2=def&param3=ghi".  I create the string in
similar way to his example which was like:
*
*        String parameters = "param1=" +
URLEncoder.encode("abc","UTF-8")+
*                      "&param2="+URLEncoder.encode("def","UTF-8")+
*                      "&param3="+URLEncoder.encode("ghi","UTF-8");
*
*       The result of the POST is returned in "resultString".
*/

public String doHttpPost( String parameters )
{
        String resultString = null;

        URL url = null;
        HttpURLConnection urlConnection = null;

        try {
                url = new URL( mURLString );
        } catch (MalformedURLException e)
        {
                // TODO Auto-generated catch block
                e.printStackTrace();
        }

        try {
                urlConnection = (HttpURLConnection) url.openConnection();
                urlConnection.setDoOutput(true);
                urlConnection.setRequestMethod("POST");
 
urlConnection.setFixedLengthStreamingMode(parameters.getBytes().length);

                //send the POST out
                PrintWriter out = new 
PrintWriter(urlConnection.getOutputStream());
                out.print(parameters);
                out.close();

                int response = urlConnection.getResponseCode();
                // if resonse = HttpURLConnection.HTTP_OK = 200, then it worked.

                InputStream in = new
BufferedInputStream(urlConnection.getInputStream());
                resultString = readStream(in);

        } catch( Exception e ){
                e.printStackTrace();
        }
        finally {
                urlConnection.disconnect();
        }

        return resultString;
  }

  public static String readStream(InputStream in) throws IOException
  {
        StringBuilder sb = new StringBuilder();
        BufferedReader r = new BufferedReader(new InputStreamReader(in),
1000);

        for (String line = r.readLine(); line != null; line = r.readLine())
{
                sb.append(line).append("\n");
        }

        in.close();

        return sb.toString();
  }


On Aug 30, 1:06 pm, jesb <budiat...@gmail.com> wrote:
> i figured it out.http://digitallibraryworld.com/?p=189
>
> On Aug 16, 3:21 pm, lbendlin <l...@bendlin.us> wrote:
>
> >POSTworks very different from GET. You need to spend much more energy to
> > format the request body. You're missing the whole Content-Disposition:
> > form-data  and the delimiter definitions etc.
>
> > your out.write should then use the prepared request body string (as you did,
> > sort of).
>
>

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