Android SHA1，MD5，SHA256值通过代码获取

接入第三方往往需要用到签名和包名，以前都是命令行获取，这里分享下代码直接获取的方式原文：高德地图APIhttps://lbs.amap.com/faq/android/map-sdk/create-project/46723/public static String getSHA1(Context context) {return getSign(context, "SHA1");}public

哆啦A梦z

1112人浏览 · 2020-12-02 16:38:06

哆啦A梦z · 2020-12-02 16:38:06 发布

接入第三方往往需要用到签名和包名，以前都是命令行获取，这里分享下代码直接获取的方式

原文：高德地图API
https://lbs.amap.com/faq/android/map-sdk/create-project/46723/
命令行获取：
https://lbs.amap.com/faq/android/map-sdk/create-project/43112/
在这里插入图片描述


public static String getSHA1(Context context) {
    return getSign(context, "SHA1");
}

public static String getMD5(Context context) {
    return getSign(context, "MD5");
}

public static String getSHA256(Context context) {
    return getSign(context, "SHA256");
}

  //代码获取sha1值
    private static String getSign(Context context, String algorithm) {
        try {
            PackageInfo info = context.getPackageManager().getPackageInfo(
                    context.getPackageName(), PackageManager.GET_SIGNATURES);
            byte[] cert = info.signatures[0].toByteArray();
            MessageDigest md = MessageDigest.getInstance(algorithm);
            byte[] publicKey = md.digest(cert);
            StringBuffer hexString = new StringBuffer();
            for (int i = 0; i < publicKey.length; i++) {
                String appendString = Integer.toHexString(0xFF & publicKey[i])
                        .toUpperCase(Locale.US);
                if (appendString.length() == 1)
                    hexString.append("0");
                hexString.append(appendString);
                hexString.append(":");
            }
            String result = hexString.toString();
            return result.substring(0, result.length() - 1);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return null;
    }