java 后端加密 前段解密和后端解密结果不一样报错

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private static byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 };
/**

 * 加密 */ public static String encryptDES(String encryptString, String encryptKey) { try { IvParameterSpec zeroIv = new IvParameterSpec(iv); SecretKeySpec key = new SecretKeySpec(encryptKey.getBytes(), "DES"); Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv); byte[] encryptedData = cipher.doFinal(encryptString.getBytes()); return Base64.encode(encryptedData); } catch (Exception e) { e.printStackTrace(); return ""; }

/** * 解密 */ public static String decryptDES(String decryptString, String decryptKey) { try { byte[] byteMi = Base64.decode(decryptString); IvParameterSpec zeroIv = new IvParameterSpec(iv); SecretKeySpec key = new SecretKeySpec(decryptKey.getBytes(), "DES"); Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, key, zeroIv); byte decryptedData[] = cipher.doFinal(byteMi);

return new String(decryptedData);

} catch (Exception e) { e.printStackTrace(); return ""; }