Sort json fields by field name - json

Question

I have json answer like
{
"bField":"some data",
"aField":"some data",
"cField":"some data",
"dField":{
"b1Field":"some data",
"c1Field":"some data",
"a1Field":"some data"
}
}
and I want to get that json, sorted by field name
{
"aField":"some data",
"bField":"some data",
"cField":"some data",
"dField":{
"a1Field":"some data",
"b1Field":"some data",
"c1Field":"some data"
}
}
I use Gson on server for create json, so my first question: can Gson sort fields by name? Or tell me of some sites or JavaScript libraries, which can convert json to json with sorted by name fields?
UPDATED:
I modify 'sortObject' function by #dariogriffo for sorting nested object fields:
function sortObject(o) {
var sorted = {},
key, a = [];
for (key in o) {
if (o.hasOwnProperty(key)) {
if (o[key]!=null && typeof o[key] === 'object'){
o[key] = sortObject(o[key]);
}
a.push(key);
}
}
a.sort();
for (key = 0; key < a.length; key++) {
sorted[a[key]] = o[a[key]];
}
return sorted;
};
Now is work good for me.

Answer 1

you can try this on your javascript side
function sortObject(o) {
var sorted = {},
key, a = [];
for (key in o) {
if (o.hasOwnProperty(key)) {
a.push(key);
}
}
a.sort();
for (key = 0; key < a.length; key++) {
sorted[a[key]] = o[a[key]];
}
return sorted;
}
var q = {
bField:'some data',
aField:'some data',
cField:'some data',
dField:{
b1Field:'some data',
c1Field:'some data',
a1Field:'some data'
}
};
var p = sortObject(q);
console.log(p);