eclipse - Java - sending POST -

i'm trying make java make new addition url shortener, here's have:

private void sendpost() throws exception {      string url = "http://shmkane.com/index.php?";     url obj = new url(url);     httpurlconnection con = (httpurlconnection) obj.openconnection();      con.setrequestmethod("post");     con.setrequestproperty("user-agent", user_agent);     con.setrequestproperty("accept-language", "en-us,en;q=0.5");      string urlparameters = "url=testingthis";      con.setdooutput(true);     dataoutputstream wr = new dataoutputstream(con.getoutputstream());     wr.writebytes(urlparameters);     wr.flush();     wr.close();      int responsecode = con.getresponsecode();     system.out.println("\nsending 'post' request url : " + url);     system.out.println("post parameters : " + urlparameters);     system.out.println("response code : " + responsecode);      bufferedreader in = new bufferedreader(             new inputstreamreader(con.getinputstream()));     string inputline;     stringbuffer response = new stringbuffer();      while ((inputline = in.readline()) != null) {         response.append(inputline);     }     in.close();      system.out.println(response.tostring());  } 

i'd put in "form1" , "submit" here's site

i'm new great, possible tell me i'm doing wrong or improving/fixing code have.

that site doesn't support post:

<form method="get" id="form1" action="index.php">     <p>&nbsp;</p>     <p><br>       <input class="textbox" id="url" placeholder="paste link shorten it" type="text" name="url" value="">     </p>     <p>       <input class="textbox" placeholder="custom alias" id="alias" maxlength="15" type="text" name="alias" value="">     </p>     <div class="button">       <p>         <input class="button" type="submit" value="shorten">       </p> <br>       <div class="alert-box success">         <center>           <a href="" target="_blank"></a>         </center>       </div>       <em>may contain letters, numbers, dashes , underscores.</em>       <p></p>     </div>   </form> 

notice method get. change this:

 string urlparameters = "url=testingthis";  string url = "http://shmkane.com/index.php?";  url obj = new url(url + urlparameters);  httpurlconnection con = (httpurlconnection) obj.openconnection();   con.setrequestmethod("get"); 

and rid of writing output stream.