Getting binary data from a JSON object

Question

I'm receiving this response from a RESTful service and saving it to a JSONObject:

{
    "GetCampaignsInProgressListResult": [
        108,
        162,
        171,
        103,
        185,
        147,
        218,
        16,
        67,
        226,
        44,
        // etc etc
    ]
}

The data above represents a binary array. I am trying to read it with the following code:

String rawResponse = client.getResponse();
JSONArray entries = null;
JSONObject o = new JSONObject(rawResponse);
entries = new JSONArray(o.getString("GetCampaignsInProgressListResult"));

I would like to access the binary data and save it to a byte array, but since it does not have an attributes name I can't use:

for (int i = 0; i < entriesLength; i++) {
    JSONObject entry = entries.getJSONObject(i);
    Object something = entry.getString("SomeTag");
}

How can I access the binary array?

Flávio Faria · Accepted Answer · 2013-04-03 19:01:10Z

4

Try this:

    String rawResponse = client.getResponse();
    JSONArray entries = null;
    JSONObject o = new JSONObject(rawResponse);
    entries = new JSONArray(o.getString("GetCampaignsInProgressListResult"));
    byte[] bArr = new byte[entries.length()];
    for (int i = 0; i < entries.length(); i++) {
        bArr[i] = (byte) entries.getInt(i);
    }

answered Apr 3, 2013 at 19:01

Flávio Faria

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1 Comment

Yubaraj Over a year ago

I think it throws JSONException saying that JSONArray[0] is not a number. On the following line: bArr[i] = (byte) entries.getInt(i);

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