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
– rajpara

2012-06-29 11:10:53 +00:00
Commented Jun 29, 2012 at 11:10 — rajpara
– rajpara, Commented Jun 29, 2012 at 11:10

JesperB · Accepted Answer · 2012-06-29 11:13:31Z

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, 2012 at 11:13

JesperB

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2 Comments

dave21 Over a year ago

@jesperB...Thanks buddy. Now i got it how to do it.:-)

Vipul Over a year ago

@dave21 If this solved your issue then you should give credit to this person by accepting his answer :)

Nirali · Accepted Answer · 2012-07-12 06:25:40Z

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);
}

Community · Accepted Answer · 2017-05-23 12:07:12Z

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, 2017 at 12:07

CommunityBot

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answered Jun 29, 2012 at 11:21

sunil

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