将散列添加到java脚本以通过蓝牙连接提供安全性

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class HashExample {
    public static void main(String[] args) {
        String data = "Hello World";

        try {
            MessageDigest md = MessageDigest.getInstance("SHA-256");
            byte[] hash = md.digest(data.getBytes());

            // 将字节数组转换为十六进制字符串表示
            StringBuilder sb = new StringBuilder();
            for (byte b : hash) {
                sb.append(String.format("%02x", b));
            }

            System.out.println("Hash: " + sb.toString());
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
    }
}