SHA加密算法工具類

1、利用Apache的工具類實現加密： 
maven：

  <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>${common-codec.version}</version> </dependency>

 

實現代碼：

   /*** * 利用Apache的工具類實現SHA-256加密 * @param str 加密后的報文 * @return */ public static String getSHA256Str(String str){ MessageDigest messageDigest; String encdeStr = ""; try { messageDigest = MessageDigest.getInstance("SHA-256"); byte[] hash = messageDigest.digest(str.getBytes("UTF-8")); encdeStr = Hex.encodeHexString(hash); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return encdeStr; }

2、利用java自帶的實現加密：

 /** * 利用java原生的摘要實現SHA256加密 * @param str 加密后的報文 * @return */ public static String getSHA256StrJava(String str){ MessageDigest messageDigest; String encodeStr = ""; try { messageDigest = MessageDigest.getInstance("SHA-256"); messageDigest.update(str.getBytes("UTF-8")); encodeStr = byte2Hex(messageDigest.digest()); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return encodeStr; } /** * 將byte轉為16進制 * @param bytes * @return */ private static String byte2Hex(byte[] bytes){ StringBuffer stringBuffer = new StringBuffer(); String temp = null; for (int i=0;i<bytes.length;i++){ temp = Integer.toHexString(bytes[i] & 0xFF); if (temp.length()==1){ //1得到一位的進行補0操作 stringBuffer.append("0"); } stringBuffer.append(temp); } return stringBuffer.toString(); }

 

 

擴展鏈接：

https://mp.weixin.qq.com/s?__biz=MzIxMjE5MTE1Nw==&mid=2653191642&idx=1&sn=47c6340a6664af2f62e6c580528ea6f6&chksm=8c990f00bbee861698daa51b0622e581b3279c0759a16330fe538de745cb6abed8288b0bd778&mpshare=1&scene=1&srcid=1016l1hnTNPE8KWZQFXt1DGg#rd