Databases
StackOverflow2013
Postsdbo
POAndroid JSON HttpClient to send data to PHP server with HttpResponse
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAndroid JSON HttpClient to send data to PHP server with HttpResponse
    text
    copied!<p>I am currently trying to send some data from and Android application to a php server (both are controlled by me). </p> <p>There is alot of data collected on a form in the app, this is written to the database. This all works.</p> <p>In my main code, firstly I create a JSONObject (I have cut it down here for this example):</p> <pre><code>JSONObject j = new JSONObject(); j.put("engineer", "me"); j.put("date", "today"); j.put("fuel", "full"); j.put("car", "mine"); j.put("distance", "miles"); </code></pre> <p>Next I pass the object over for sending, and receive the response:</p> <pre><code>String url = "http://www.server.com/thisfile.php"; HttpResponse re = HTTPPoster.doPost(url, j); String temp = EntityUtils.toString(re.getEntity()); if (temp.compareTo("SUCCESS")==0) { Toast.makeText(this, "Sending complete!", Toast.LENGTH_LONG).show(); } </code></pre> <p>The HTTPPoster class:</p> <pre><code>public static HttpResponse doPost(String url, JSONObject c) throws ClientProtocolException, IOException { HttpClient httpclient = new DefaultHttpClient(); HttpPost request = new HttpPost(url); HttpEntity entity; StringEntity s = new StringEntity(c.toString()); s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json")); entity = s; request.setEntity(entity); HttpResponse response; response = httpclient.execute(request); return response; } </code></pre> <p>This gets a response, but the server is returning a 403 - Forbidden response.</p> <p>I have tried changing the doPost function a little (this is actually a little better, as I said I have alot to send, basically 3 of the same form with different data - so I create 3 JSONObjects, one for each form entry - the entries come from the DB instead of the static example I am using).</p> <p>Firstly I changed the call over a bit:</p> <pre><code>String url = "http://www.myserver.com/ServiceMatalan.php"; Map&lt;String, String&gt; kvPairs = new HashMap&lt;String, String&gt;(); kvPairs.put("vehicle", j.toString()); // Normally I would pass two more JSONObjects..... HttpResponse re = HTTPPoster.doPost(url, kvPairs); String temp = EntityUtils.toString(re.getEntity()); if (temp.compareTo("SUCCESS")==0) { Toast.makeText(this, "Sending complete!", Toast.LENGTH_LONG).show(); } </code></pre> <p>Ok so the changes to the doPost function:</p> <pre><code>public static HttpResponse doPost(String url, Map&lt;String, String&gt; kvPairs) throws ClientProtocolException, IOException { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost(url); if (kvPairs != null &amp;&amp; kvPairs.isEmpty() == false) { List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(kvPairs.size()); String k, v; Iterator&lt;String&gt; itKeys = kvPairs.keySet().iterator(); while (itKeys.hasNext()) { k = itKeys.next(); v = kvPairs.get(k); nameValuePairs.add(new BasicNameValuePair(k, v)); } httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); } HttpResponse response; response = httpclient.execute(httppost); return response; } </code></pre> <p>Ok So this returns a response 200</p> <pre><code>int statusCode = re.getStatusLine().getStatusCode(); </code></pre> <p>However the data received on the server cannot be parsed to a JSON string. It is badly formatted I think (this is the first time I have used JSON):</p> <p>If in the php file I do an echo on $_POST['vehicle'] I get the following:</p> <pre><code>{\"date\":\"today\",\"engineer\":\"me\"} </code></pre> <p>Can anyone tell me where I am going wrong, or if there is a better way to achieve what I am trying to do? Hopefully the above makes sense!</p>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload