simple way to convert byte array to JSONArray

Question

I have a byte array which was converted from a JSONArray. Now how to convert it back to JSONArray. Is there any simple lib to do this. Or do i have to use base64 as this post says? Here is the code to convert JSONArray to bytearray:

JSONArray arr = //some value;
byte[] bArr = arr.toString().getBytes();

score 9 · Accepted Answer · answered Sep 29 '14 at 11:54

9

Since you are not specifying no CharSet on converting the Json array string to bytes. Simply use :

   arr = new JSONArray(new String(bArr));

answered Sep 29 '14 at 11:54

blackSmith

3,054
1
20
37

score 7 · Answer 2 · answered Sep 29 '14 at 11:51

7

The typical way to send binary in json is to base64 encode it. Java provides different ways to Base64 encode and decode a byte[]. One of these is DatatypeConverter.

Very simply

byte[] originalBytes = new byte[] { 1, 2, 3, 4, 5};
String base64Encoded = DatatypeConverter.printBase64Binary(originalBytes);
byte[] base64Decoded = DatatypeConverter.parseBase64Binary(base64Encoded);

answered Sep 29 '14 at 11:51

Rohit

647
14
30

So you are telling that i can use this to convert JSONArray to byte array and vice versa? – Vithushan Sep 29 '14 at 11:56

score 0 · Answer 3 · answered Aug 12 '20 at 15:19

0

private JsonArray convertByteArrayToJsonArray(byte[] yourByteArray) throws IOException {
        try (ZipInputStream zipInputStream = new ZipInputStream(new ByteArrayInputStream(yourByteArray))) {
            zipInputStream.getNextEntry();
            try (JsonReader reader = Json.createReader(zipInputStream)) {
                return reader.readArray();
            }
        }
    }

answered Aug 12 '20 at 15:19

Kartik Adhia

11
2

Please add an explanation with your code. It may help future visitors. – shreyasm-dev Aug 12 '20 at 15:51

simple way to convert byte array to JSONArray

3 Answers3