How to parse json array with ajax?

Question

Servlet side. I write 2 JSON String objects to JSON array:

Gson data = new Gson();
JsonArray arr = new JsonArray();

JsonObject obj1 = new JsonObject();
JsonElement element = data.toJsonTree(imgstr);
obj1.add("image", element);
arr.add(obj1);

JsonObject obj2 = new JsonObject();
JsonElement element1 = data.toJsonTree(strBuf);
obj2.add("html", element1);
arr.add(obj2);

out.write(arr.toString());

Ajax. I receive that array:

done(function(result) {
    console.log(result);
})

It shows [{"image":"myImageString"},{"html":"myHtmlString"}].

How to get that Strings separately? Following doesn't work:

var image=result.image;
var html=result.html;

Jan · Accepted Answer · 2015-12-27 12:15:22Z

2

Your result in this case in an array of objects. So you should acces them as an array:

var image=result[0].image;
var html=result[1].html;

It would be better though to just return one object:

                    JsonObject obj1 = new JsonObject();
                    JsonElement element = data.toJsonTree(imgstr);
                    obj1.add("image", element);
                    obj1.add("html", element1

                    out.write(obj1.toString());

In which case your suggested code

var image=result.image;
var html=result.html;

will work.

edited Dec 27, 2015 at 12:15

answered Dec 27, 2015 at 12:10

Jan

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Comments

Azat Nugusbayev · Accepted Answer · 2015-12-27 12:14:15Z

1

if you sending an array, you must retrieve objects from array by index like

var image=result[0].image;

But if you want to get objects by name like

var image=result.image;

you must send JsonObject not a JsonArray

answered Dec 27, 2015 at 12:14

Azat Nugusbayev

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