MD5SIGN.java

Android开发过程中加密用的,比如 public static String getMD5Sign(String ciphertext){ LOGGER.info("需要签名的参数:{}",ciphertext); if ("".equals(ciphertext) || null == ciphertext || "".equals(ciphertext.trim())) { return null; } char hexDigits[] = { '0', '1', '2', '3', '4', '