How to add multiple JSON array with same name in a JSON object?
I have tried
JSONObject jsonObject = new JSONObject(jsonHeader);
jsonObject.put("item", jsonArray1);
jsonObject.put("item", jsonArray2);
Log.i(TAG, jsonObject.toString());
and I get this result
{
...
"item":{[
jsonArray2
]}
}
but I want get the result contain all the jsonArray
{
...
"item":{[
jsonArray1
]},
"item":{[
jsonArray2
]}
}
How can I do that?
Thanks :D
No. You cant. It is not allowed to create two keys with same name inside a JSON object. It is not included in JSON standards.
If all items are called item, you should consider doing two layers of JSON arrays instead.
[
[ "A" ],
[ "B" ],
[ "C" ]
]
If the entries can have different names, you should do something like wrap the named arrays in an object. This means a JSON Array containing an object, and the object containing another object with a name and a JSON Array.
[
{
"item":["A"]
},
{
"item":["B"]
},
]
I would avoid having multiple keys with the same value not just for JSON standard reasons, but also for the fact that it would give you unexpected and possibly inconsistent results with many JSON parsers. Don't just think of a JSON object as JSON, but also how it would end up as data in a programming language
Disclaimer: I never tried a 2D JSON Array before.
