How to create Json using JsonArray and JsonObject

Question

I want to create a Json structure which is actually a JsonArray inside a JsonObject. The sample structure is:

1.

{
“req”: [
{
  “ctrlId”:”txt1”
},
{
  “ctrlId”:”txt2”
}
]
}

2.

{
“req”: [
{
  “ctrlId”:”txt1”,
  “val” : “val1”
},
{
  “ctrlId”:”txt2”,
  “val” : “val2”
}
]
}

But i am not able to get it..Any help is appreciated..

google it out for parsing json – rajpara Jun 29 '12 at 11:10 — rajpara, Jun 29 '12 at 11:10

score 16 · Accepted Answer · answered Jun 29 '12 at 11:13

16

    JSONObject obj = new JSONObject();
    JSONArray req = new JSONArray();

    JSONObject reqObj = new JSONObject()
    reqObj.put( "ctrlId", "txt1" );
    req.put( reqObj );
    reqObj = new JSONObject();
    reqObj.put( "ctrlId", "txt2" );
    req.put( reqObj );

    obj.put( "req", req );

The final object is obj

answered Jun 29 '12 at 11:13

JesperB

4,625
1
36
40

@jesperB...Thanks buddy. Now i got it how to do it.:-) – dave21 Jun 29 '12 at 11:21
1

@dave21 If this solved your issue then you should give credit to this person by accepting his answer :) – Vipul Jun 29 '12 at 11:23

Nirali · Answer 2 · 2012-07-12T06:25:40.480

I have this array

{
"result": "success",
"countryCodeList":
[
  {"countryCode":"00","countryName":"World Wide"},
  {"countryCode":"kr","countryName":"Korea"}
] 
}

Here below I am fetching country details, so I have used valArray.getJSONArray(1)

You can use valArray.getJSONArray(0)

JSONObject json = new JSONObject(jsonstring);
JSONArray nameArray = json.names();
JSONArray valArray = json.toJSONArray(nameArray);

JSONArray valArray1 = valArray.getJSONArray(1);

valArray1.toString().replace("[", "");
valArray1.toString().replace("]", "");

int len = valArray1.length();

for (int i = 0; i < valArray1.length(); i++) {

 Country country = new Country();
 JSONObject arr = valArray1.getJSONObject(i);
 country.setCountryCode(arr.getString("countryCode"));                        
 country.setCountryName(arr.getString("countryName"));
 arrCountries.add(country);
}

score 0 · Answer 3 · edited May 23 '17 at 12:07

0

you can use GSON for doing this parsing. it will make your life simple.

you can have a look at my answers in this SO question

edited May 23 '17 at 12:07

Community

1
1

answered Jun 29 '12 at 11:21

sunil

6,444
1
32
44

How to create Json using JsonArray and JsonObject

3 Answers3

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