| | |
| | | import java.security.NoSuchAlgorithmException; |
| | | |
| | | public class Md5Utils { |
| | | |
| | | |
| | | /** |
| | | * MD5转字符串 |
| | | */ |
| | | public static String encodeMD5(String s) { |
| | | public static String encodeMD5(byte[] f) { |
| | | try { |
| | | MessageDigest digest = MessageDigest.getInstance("MD5"); |
| | | digest.update(s.getBytes(StandardCharsets.UTF_8)); |
| | | digest.update(f); |
| | | byte[] messageDigest = digest.digest(); |
| | | return toHexString(messageDigest); |
| | | } catch (NoSuchAlgorithmException e) { |
| | |
| | | } |
| | | return ""; |
| | | } |
| | | |
| | | |
| | | private static String toHexString(byte[] keyData) { |
| | | if (keyData == null) { |
| | |
| | | sb.append(hexStr); |
| | | } |
| | | return sb.toString(); |
| | | } |
| | | |
| | | /** |
| | | * MD5转字符串 |
| | | */ |
| | | public static String encodeMD5(String s) { |
| | | try { |
| | | MessageDigest digest = MessageDigest.getInstance("MD5"); |
| | | digest.update(s.getBytes(StandardCharsets.UTF_8)); |
| | | byte[] messageDigest = digest.digest(); |
| | | return toHexString(messageDigest); |
| | | } catch (NoSuchAlgorithmException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | return ""; |
| | | } |
| | | |
| | | /** |
| | |
| | | return bigInt.toString(16); |
| | | } |
| | | |
| | | /** |
| | | * MD5文件转字符串 |
| | | */ |
| | | public static String encodeMD5(byte[] f) { |
| | | MessageDigest digest; |
| | | try { |
| | | digest = MessageDigest.getInstance("MD5"); |
| | | digest.update(f); |
| | | } catch (Exception e) { |
| | | e.printStackTrace(); |
| | | return null; |
| | | } |
| | | BigInteger bigInt = new BigInteger(1, digest.digest()); |
| | | return bigInt.toString(16); |
| | | } |
| | | // /** |
| | | // * MD5文件转字符串 |
| | | // */ |
| | | // public static String encodeMD5(byte[] f) { |
| | | // MessageDigest digest; |
| | | // try { |
| | | // digest = MessageDigest.getInstance("MD5"); |
| | | // digest.update(f); |
| | | // } catch (Exception e) { |
| | | // e.printStackTrace(); |
| | | // return null; |
| | | // } |
| | | // BigInteger bigInt = new BigInteger(1, digest.digest()); |
| | | // return bigInt.toString(16); |
| | | // } |
| | | |
| | | |
| | | } |