Hashing data with HMAC_SHA256 with Java

To use the HMAC_SHA256 you need a shared secret key with message. Below code can be used to create the hash text for String data for the given key.

import org.apache.commons.codec.binary.Hex;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

public class HMACSHA256Test {

    public static String encode(String key, String data) throws Exception {
        Mac sha256HMAC = Mac.getInstance("HmacSHA256");
        SecretKeySpec secretKey = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");
        sha256HMAC.init(secretKey);

        return Hex.encodeHexString(sha256HMAC.doFinal(data.getBytes("UTF-8")));
    }

    public static void main(String [] args) throws Exception {
        System.out.println("Hashed text: "+ encode("key", "The quick brown fox jumps over the lazy dog"));
    }
}

Output

Hashed text: f7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8