code: public static byte[] AesDecryptByBytes(byte[] encryptBytes,byte[] decryptKey) throws Exception {
  		KeyGenerator kgen = KeyGenerator.getInstance("AES");
  		SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
  		secureRandom.setSeed(decryptKey);
  		kgen.init(128,secureRandom);
  		Cipher cipher = Cipher.getInstance("AES");
  		cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES"));
  		byte[] decryptBytes = cipher.doFinal(encryptBytes);
  		return decryptBytes;
  	}
docs: AES解密
  @param encryptBytes 待解密的byte[]
  @param decryptKey 解密密钥
  @return 解密后的
  @throws Exception