Sending Data From Android To Server With Json Data
Solution 1:
This isn't where your JSON is:
$json = $_SERVER['HTTP_JSON'];
You possibly meant:
$json = $_POST['HTTP_JSON'];
Where HTTP_JSON is the POST variable name you gave to your JSON in your Android app.
The rest of the errors stem from the fact that json_decode is failing because you're not successfully reading the JSON data from the request. You can check the response of json_decode to check if it was successful as follows:
$data = json_decode($json,true);
if( $data === NULL)
{
exit( 'Could not decode JSON');
}
Finally, passing true as the second parameter to json_encode means it will return an associative array, so you'd access elements like so:
$name = $data['name'];
$pos = $data['position'];
Make sure you read the docs for json_encode so you understand what it's doing.
Edit: Your problem is that you're accessing the $_POST parameter by the wrong name. You should be using:
$json = $_POST['jsonpost'];
Since the following line names the parameter "jsonpost":
httppost.getParams().setParameter("jsonpost",postjson);
Solution 2:
Since I don't know how the java client sends the request I would try :
print_r($_SERVER);
print_r($_GET);
print_r($_POST);
To figure out how it does.
Solution 3:
try these lines:
httppost.setHeader("Accept", "application/json");
httppost.setHeader("Content-type", "application/json");
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