send JSON to server via HTTP put request in android

Question

How to wrap given json to string and send it to server via Http put request in android?

This is how my json look like.

    {
    "version": "1.0.0",
    "datastreams": [
        {
            "id": "example",
            "current_value": "333"
        },
        {
            "id": "key",
            "current_value": "value"
        },
        {
            "id": "datastream",
            "current_value": "1337"
        }
    ]
}

above is my json array.

below is how I wrote the code but, its not working

        protected String doInBackground(Void... params) {
            String text = null;
            try {
                JSONObject child1 = new JSONObject();
                try{
                    child1.put("id", "LED");
                    child1.put("current_value", "0");


                } catch (JSONException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }


                JSONArray jsonArray = new JSONArray();

                jsonArray.put(child1);

                JSONObject datastreams = new JSONObject();
                datastreams.put("datastreams", jsonArray);  

                JSONObject version = new JSONObject();
                version.put("version", "1.0.0");
                version.put("version", datastreams);


             HttpClient httpClient = new DefaultHttpClient();
             HttpContext localContext = new BasicHttpContext();
             HttpPut put = new HttpPut("url");
             put.addHeader("X-Apikey","");
             StringEntity se = new StringEntity( version.toString());  
             se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));

             put.addHeader("Accept", "application/json");
             put.addHeader("Content-type", "application/json");
             put.setEntity(se);


             try{

                   HttpResponse response = httpClient.execute(put, localContext);
                   HttpEntity entity = response.getEntity();
                   text = getASCIIContentFromEntity(entity);
             }
              catch (Exception e) {
                 return e.getLocalizedMessage();
             }


        }catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
            return text;
        }

please help on this

Use gson, it will help you wrap unwrap your jsons and objects — Hardik4560, Jan 27 '14 at 09:10
SO is not a `give me teh codez!!1` site. Please provide what you have tried so far. If you haven't done anything, please try at least google and **then** if you still can't manage - ask here — Mario Stoilov, Jan 27 '14 at 09:10
in general, _to wrap given json to string_ is just to put it into quotes and escape the internal quotes. "{ \"version\": \"1.0.0\", \"datastreams\": [ { \"id\": \"example\", \"current_value\": \"333\" }, { \"id\": \"key\", \"current_value\": \"value\" }, { \"id\": \"datastream\", \"current_value\": \"1337\" } ] }" -- you need to open a text editor window and replace all "-s with \"-s — 18446744073709551615, Jan 27 '14 at 09:13
if u solved ur problem then check as a correct answer which solved.......! — Prasad, Aug 26 '14 at 14:28

Shayan Pourvatan · Answer 1 · 2014-01-28T10:21:06.317

4

this is one sample.

    JSONObject Parent = new JSONObject();
    JSONArray array = new JSONArray();

    for (int i = 0 ; i < datastreamList.size() ; i++)
    {
        JSONObject jsonObj = new JSONObject();

        jsonObj.put("id", datastreamList.get(i).GetId());
        jsonObj.put("current_value", datastreamList.get(i).GetCurrentValue());
        array.put(jsonObj);
    }       
    Parent.put("datastreams", array);       
    Parent.put("version", version);

and for sending that:

    HttpClient client = new DefaultHttpClient();
    HttpPost post = new HttpPost(url);
    StringEntity se = new StringEntity( Parent.toString());  
    se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
    post.setHeader("Accept", "application/json");
    post.setHeader("Content-type", "application/json");
    post.setEntity(se);
    client.execute(post);

EDIT

in this sample datastreamList that used in for statement is a list that you must have for all value that want send to server ( one list of one class that have 2 property , id and value ), actually i think you have two class like bellow:

class A {

List<Datastreams> datastreamList
String version;
//get
//set
}

class Datastreams {

String id;
String current_value; // or int
//get
//set
}

and in your code you must have one object of A class that want send to server, so you can use first part to map your object to json.

edited Jan 28 '14 at 10:21

answered Jan 27 '14 at 09:31

Shayan Pourvatan

11,898
4
42
63

But, how to write "current_value" for particular "id" ?? ex. "current_value" = "0" – Jimit Jan 27 '14 at 11:08
i don't get you, can you explain better? – Shayan Pourvatan Jan 27 '14 at 11:22
"current_value" is something where we can update data like 1,2,3 or with any char. So, how should I write actual data to above code? – Jimit Jan 27 '14 at 17:22
also, this code in eclipse shows "datastreams can not be resolved". What to do next? – Jimit Jan 27 '14 at 17:41
class A { List datastreamList String version= 1.0.0; } class datastreams { String id=example; int current_value=0; // or int } Is this class will work?? Because I am new to this. – Jimit Jan 28 '14 at 08:33
I was doing like this jsonObj.put("id", "LED"); jsonObj.put("current_value", "0"); but, it was not helping to send data. – Jimit Jan 28 '14 at 10:08
with this code you just have `datastreams` tag, what about `version`? can you edit your post with new code? – Shayan Pourvatan Jan 28 '14 at 10:20
I have wrote the code above in question, but its not working. Would you please give me full detail of working code? – Jimit Jan 28 '14 at 19:13
`its not working` not a good describe of your problem, above code is a complete, you just need put your set and get method in two class and before for statement put your list in `datastreamList`, rest of code do your job. – Shayan Pourvatan Jan 29 '14 at 04:51
Hello Shayan , I am not saying your code is not working. I have posted the code on which I was working in question is not giving any output. – Jimit Jan 29 '14 at 09:19
for checking your `json` you can use `log version.toString()` to make Sure your json is correct or not, but in first look you need put your version Json in another `jsonObject` and then send that. and change tag of `version.put("version", datastreams);` to `datastreams` – Shayan Pourvatan Jan 29 '14 at 09:34

Vipul Purohit · Answer 2 · 2014-02-27T05:14:08.157

2

If you prefer to use a library then I'll prefer you to use Ion Library by Kaush.

Form this library you can simply post your JSON like this :

JsonObject json = new JsonObject();
json.addProperty("foo", "bar");

Ion.with(context, "http://example.com/post")
.setJsonObjectBody(json)
.asJsonObject()
.setCallback(new FutureCallback<JsonObject>() {
   @Override
    public void onCompleted(Exception e, JsonObject result) {
        // do stuff with the result or error
    }
});

edited Feb 27 '14 at 05:14

answered Jan 28 '14 at 05:30

Vipul Purohit

9,807
6
53
76

4

How is Ion used to send PUT requests? This example will send a POST request – Jonás Feb 26 '14 at 23:17

score 0 · Answer 3 · answered Jan 27 '14 at 09:59

Just you have to send as a String so store following JSON data in String

{
    "version": "1.0.0",
    "datastreams": [
        {
            "id": "example",
            "current_value": "333"
        },
        {
            "id": "key",
            "current_value": "value"
        },
        {
            "id": "datastream",
            "current_value": "1337"
        }
    ]
}

then you have to send like:

pairs.add(new BasicNameValuePair("data", finalJsonObject.toString()));

jos · Answer 4 · 2014-01-28T06:01:23.360

The '{' bracket represent a object and '[' represent an array or list. In your case create a bean

YourObj{
private String version;
private List<DataStream> datastreams;
//getters
//setters 
}
DataStream{
private String id;
private String current_value;
//getters
//setters
}

use org.codehaus.jackson:jackson-xc jar for json parssing

use ObjectMapper

String to Object

 YourObj obj = new ObjectMapper().readValue(stringyouwanttopass,new TypeReference<YourObj>(){});

now you can use the parsed value.

or you can set the values to the YourObj

YourObj obj =new YourObj();
obj.setVersion(1.0.0);
List<Datastream> datastreams=new ArrayList<Datastream>();
Datastream datestr=new Datastream();
datestr.setId("example");
datestr.setCurrent_value("333");
datastreams.add(datestr);
datestr.setId("key");
datestr.setCurrent_value("value");
datastreams.add(datestr);
datestr.setId("datastream");
datestr.setCurrent_value("1337");
datastreams.add(datestr);
JSONObject jsonget = new JSONObject(appObject);
jsonget.toString();

Connecting server using Jersey

Client client = Client.create();
WebResource webResource = client.resource("serverURl");
ClientResponse response = webResource.path("somePath")
                    .type("application/json").accept("application/json")
                    .post(ClientResponse.class, jsonget.toString());

in the server side get it as string and parse it.

score 0 · Answer 5 · answered Jan 28 '16 at 07:30

0

here is a android Client library can help you: Httpzoid - Android REST (JSON) Client,it has some examples and you can do put post,get request easily. https://github.com/kodart/Httpzoid

answered Jan 28 '16 at 07:30

Jack Li

9
2

Link-only answers are highly discouraged here because the links may become dead in the future. I suggest you edit your answer with quotes from the sources you cite. – Anirudh Sharma Jan 28 '16 at 07:50
than you for your advice – Jack Li Jan 29 '16 at 02:51

send JSON to server via HTTP put request in android

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