Sending Json message using gson on android

Question

I want to send a json message over http to a php server.I used the gson library as you can see.

Gson gson = new Gson();
String[] data = {"value1", "value2", "value3"};
String json = gson.toJson(data);
String message = "jdata"+json; //I did this because of the server implementation 
String path= "http://localhost/joomla/index.php?option=com_up1";

I want to connect to send (POST) the string message to the server that is located on the path The server will retrieve the values, value1,value2,value3 from the message.

$jd = json_decode(JRequest::getVar( 'jdata'), true);
if (sizeof($jd)>0) {


$name = $jd[0];
$surname = $jd[1];
......
 ......

The server will return messages like

if ($db->query()) {
                printf("OK");

that I want to display in my application.

How can I send the message to the server ? And how can I read the messages from the server to my app ?

possible duplicate of [Send JSON from Java to PHP through Post](http://stackoverflow.com/questions/14983521/send-json-from-java-to-php-through-post) — Brian Roach, May 08 '13 at 01:17

score 0 · Answer 1 · answered May 07 '13 at 21:39

0

Have a look at the HttpPost class. A Google search will show you tons of examples.

answered May 07 '13 at 21:39

SimonSays

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I have found many examples but none of them explains the steps that are taken to complete HTTP POST.... I could not understand how it works – malcolm the4 May 07 '13 at 22:41
Refine the google search to "android httppost json". One of the first results is this one, it does exactly what you are looking for. http://stackoverflow.com/questions/6218143/android-post-json-using-http – SimonSays May 07 '13 at 23:41

dmon · Answer 2 · 2013-05-07T22:02:24.947

0

You say you want it in the path but:

//If it's a parameter it would have to be "jdata="+json
String message = "jdata"+json; 
//And you didn't append it to the path either...
String path= "http://localhost/joomla/index.php?option=com_up1";

However, you should really be sending this in the message body.

edited May 07 '13 at 22:02

answered May 07 '13 at 21:46

dmon

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I am now confused. The path is the url I want to send my message to. Please elaborate more. Thank you – malcolm the4 May 07 '13 at 22:38

score -3 · Accepted Answer · answered May 07 '13 at 21:38

-3

In android long operation such as internet interaction should (in latest versions must) be done in separate thread.

You can accomplish this task in many ways, but i think the simplest consists in creating a subclass of AsyncTask and put the network interaction into the doInBackground method. To interact with the server you can use either the Apache HttpClient or the HttpURLConnection.

answered May 07 '13 at 21:38

user2340612

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-1: I disagree. Consider an IntentService. http://stackoverflow.com/a/4177349/109941 – Jim G. Mar 08 '14 at 22:51

Sending Json message using gson on android

3 Answers3