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POPOST request with URLConnection, only numbers seems to work
 

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  1. POPOST request with URLConnection, only numbers seems to work
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    <p>I'm trying to do a request to a server with some POST parameters, I have used some code that I found here: <a href="https://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests">Using java.net.URLConnection to fire and handle HTTP requests</a></p> <p>The problem is that all values becomes "0" when i write them out on the php page on the server, except the first numbers in the ssn. Also, the response i get back to the java code, does not have "charset=UTF-8" in the "content-type" member of the header. But as you can see in the php/html code, I don't change the header anywhere. </p> <p>Android code: </p> <pre><code>public static String testCon() { String url = "http://xxx.xxx.se/postReciverTest.php"; String charset = "UTF-8"; String param1 = "Test"; String param2 = "Test2"; String param3 = "123456-7899"; // ... String query = null; try { query = String.format("fname=%s&amp;sname=%s&amp;ssn=%s", URLEncoder.encode(param1, charset), URLEncoder.encode(param2, charset), URLEncoder.encode(param3, charset)); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } URLConnection connection = null; try { connection = new URL(url).openConnection(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } connection.setDoOutput(true); // Triggers POST. connection.setRequestProperty("Accept-Charset", charset); connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset); OutputStream output = null; try { try { output = connection.getOutputStream(); } catch (IOException e) { e.printStackTrace(); } try { output.write(query.getBytes(charset)); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } finally { if (output != null) try { output.close(); } catch (IOException logOrIgnore) {} } InputStream response = null; try { response = connection.getInputStream(); } catch (IOException e) { e.printStackTrace(); } int status; try { status = ((HttpURLConnection) connection).getResponseCode(); } catch (IOException e) { e.printStackTrace(); } for (Entry&lt;String, List&lt;String&gt;&gt; header : connection.getHeaderFields().entrySet()) { System.out.println(header.getKey() + "=" + header.getValue()); } String contentType = connection.getHeaderField("Content-Type"); charset = null; for (String param : contentType.replace(" ", "").split(";")) { if (param.startsWith("charset=")) { charset = param.split("=", 2)[1]; break; } } charset = "UTF-8"; //this is here just because the header don't seems to contain the info and i know that the charset is UTF-8 String res = ""; if (charset != null) { BufferedReader reader = null; try { try { reader = new BufferedReader(new InputStreamReader(response, charset)); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } try { for (String line; (line = reader.readLine()) != null;) { // ... System.out.println(line) ? res += line; } } catch (IOException e) { e.printStackTrace(); } } finally { if (reader != null) try { reader.close(); } catch (IOException logOrIgnore) {} } } else { // It's likely binary content, use InputStream/OutputStream. } return null; } </code></pre> <p>page that i sent the request to:</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt; &lt;title&gt;Untitled Document&lt;/title&gt; &lt;/head&gt; &lt;body&gt; Test &lt;? echo $_POST["fname"] + "&lt;br /&gt;"; echo $_POST["sname"] + "&lt;br /&gt;"; echo $_POST["ssn"] + "&lt;br /&gt;"; ?&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>So the result I get in the "res" variable is the html code with "00123456" insted of: "Test Test2 123456-7899"</p> <p>This is not my field, so it would be nice if the answer(s) is fairly easy to understand :)</p> <p>Thanks in advance! </p>
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    1. USMockarutan
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    1. COI noticed a space in your request header .... application/x-www-form- urlencoded ... this probably isn't the issue but its worth a try. See http://stackoverflow.com/questions/896721/urlencoder-encode-urldecoder-decode-in-java-android also.
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    2. COThat was just a typo here, and it's not in the real code. But thanks anyway.
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    3. COIt works now, the problem was in the php file. Don't know exactly what, but when i removed the "<br />", it worked like a charm.
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      1. USMockarutan
 

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