DESKeyGenerator与javax.crypto.KeyGeneratorSpi

Question

详细信息：

Exception Caught:- java.lang.ClassCastException:DESKeyGenerator incompatible with javax.crypto.KeyGeneratorSpi 

在执行之前显式添加了Javax JAR。 如果需要更多信息，请在下面发表评论。 在开发环境中引起异常。

 public class EncryptDecrypt {
    Cipher ecipher;
    Cipher dcipher;

    public EncryptDecrypt(SecretKey key) {
        try {
            ecipher = Cipher.getInstance("DES");
            dcipher = Cipher.getInstance("DES");
            ecipher.init(Cipher.ENCRYPT_MODE, key);
            dcipher.init(Cipher.DECRYPT_MODE, key);

        } catch (javax.crypto.NoSuchPaddingException e) {
        } catch (java.security.NoSuchAlgorithmException e) {
        } catch (java.security.InvalidKeyException e) {
        }
    }

    public String encrypt(String str) {
        try {
            // Encode the string into bytes using utf-8
            byte[] utf8 = str.getBytes("UTF8");

            // Encrypt
            byte[] enc = ecipher.doFinal(utf8);

            // Encode bytes to base64 to get a string
            return new sun.misc.BASE64Encoder().encode(enc);
        } catch (javax.crypto.BadPaddingException e) {
        } catch (IllegalBlockSizeException e) {
        } catch (UnsupportedEncodingException e) {
        } catch (java.io.IOException e) {
        }
        return null;
    }

    public String decrypt(String str) {
        try {
            // Decode base64 to get bytes
            byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);

            // Decrypt
            byte[] utf8 = dcipher.doFinal(dec);

            // Decode using utf-8
            return new String(utf8, "UTF8");
        } catch (javax.crypto.BadPaddingException e) {
        } catch (IllegalBlockSizeException e) {
        } catch (UnsupportedEncodingException e) {
        } catch (java.io.IOException e) {
        }
        return null;
    }

    public static void main(String[] args) {
        try {
            // Generate a temporary key. In practice, you would save this key.
            // See also e464 Encrypting with DES Using a Pass Phrase.
            SecretKey key = KeyGenerator.getInstance("DES").generateKey();

            // Create encrypter/decrypter class
            EncryptDecrypt encrypter = new EncryptDecrypt(key);

            // Pass variable I should get from the form with the
            // request.getParameter("Pass");
            String Pass = "Password"; // Just to make it work

            // Encrypt
            String encrypted = encrypter.encrypt(Pass);

            // Decrypt
            String decrypted = encrypter.decrypt(encrypted);

            // Output

            System.out.println("Encrypted: " + encrypted);
            System.out.println("Decrypted: " + decrypted);

        } catch (Exception e) {
        }
    }
}

  

捕获到的异常：-java.lang.ClassCastException：DESKeyGenerator   与javax.crypto.KeyGeneratorSpi Javax类不兼容   在执行之前明确添加。