Java读取HMAC-SHA1签名消息

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

public class HMACSHA1Example {
    public static void main(String[] args) {
        String message = "Hello, World!";
        String key = "mySecretKey";

        try {
            Mac sha1Hmac = Mac.getInstance("HmacSHA1");
            SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(), "HmacSHA1");
            sha1Hmac.init(secretKey);
            byte[] signature = sha1Hmac.doFinal(message.getBytes());

            System.out.println("HMAC-SHA1 Signature: " + bytesToHex(signature));
        } catch (NoSuchAlgorithmException | InvalidKeyException e) {
            e.printStackTrace();
        }
    }

    private static String bytesToHex(byte[] bytes) {
        StringBuilder result = new StringBuilder();
        for (byte b : bytes) {
            result.append(String.format("%02x", b));
        }
        return result.toString();
    }
}