2. Java版本代码demo：

/**
 * JAVA AES 加减密
 *
 * @date 2018/2/25 下午4:13
 */
public class AesEncryptUtil {
    private static Charset CHARSET = Charset.forName("utf-8");
    private Base64 base64 = new Base64();
    private byte[] aesKey;
    private String token;
    private String clientId;
    /**
     * 构造函数
     *
     * @param encodingAesKey 开发者encodingAESKey
     * @param clientId       开发者clientId
     *
     * @throws TpException 异常错误信息
     */
    public AesEncryptUtil(String encodingAesKey, String clientId) throws TpException {
        int encodingAesKeyLength = 43;
        if (encodingAesKey.length() != encodingAesKeyLength) {
            throw new TpException(TpErrorEnum.ILLEGAL_AES_KEY_ERROR);
        }
        this.clientId = clientId;
        aesKey = Base64.decodeBase64(encodingAesKey + "=");
    }
    /**
     * 构造函数
     *
     * @param token          开发者token
     * @param encodingAesKey 开发者encodingAESKey
     * @param clientId       开发者clientId
     *
     * @throws TpException 异常错误信息
     */
    public AesEncryptUtil(String token, String encodingAesKey, String clientId) throws TpException {
        int encodingAesKeyLength = 43;
        if (encodingAesKey.length() != encodingAesKeyLength) {
            throw new TpException(TpErrorEnum.ILLEGAL_AES_KEY_ERROR);
        }
        this.token = token;
        this.clientId = clientId;
        aesKey = Base64.decodeBase64(encodingAesKey + "=");
    }
    /**
     * 生成4个字节的网络字节序
     *
     * @param sourceNumber 文本长度
     *
     * @return orderBytes
     */
    private byte[] getNetworkBytesOrder(int sourceNumber) {
        byte[] orderBytes = new byte[4];
        orderBytes[3] = (byte) (sourceNumber & 0xFF);
        orderBytes[2] = (byte) (sourceNumber >> 8 & 0xFF);
        orderBytes[1] = (byte) (sourceNumber >> 16 & 0xFF);
        orderBytes[0] = (byte) (sourceNumber >> 24 & 0xFF);
        return orderBytes;
    }
    /**
     * 还原4个字节的网络字节序
     *
     * @param orderBytes 字节码
     *
     * @return sourceNumber
     */
    private int recoverNetworkBytesOrder(byte[] orderBytes) {
        int sourceNumber = 0;
        int length = 4;
        int number = 8;
        for (int i = 0; i < length; i++) {
            sourceNumber <<= number;
            sourceNumber |= orderBytes[i] & 0xff;
        }
        return sourceNumber;
    }
    /**
     * 随机生成16位字符串
     *
     * @return 随机串
     */
    public String getRandomStr() {
        String base = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        Random random = new Random();
        StringBuilder stringBuild = new StringBuilder();
        int randStrLength = 16;
        for (int i = 0; i < randStrLength; i++) {
            int number = random.nextInt(base.length());
            stringBuild.append(base.charAt(number));
        }
        return stringBuild.toString();
    }
    /**
     * 对明文进行加密
     *
     * @param text 待加密明文
     *
     * @return 加密后base64编码的字符串
     *
     * @throws TpException 异常错误信息
     */
    public String encrypt(String randomStr, String text) throws TpException {
        ByteGroup byteCollector = new ByteGroup();
        byte[] randomStrBytes = randomStr.getBytes(CHARSET);
        byte[] textBytes = text.getBytes(CHARSET);
        byte[] networkBytesOrder = getNetworkBytesOrder(textBytes.length);
        byte[] clientIdBytes = clientId.getBytes(CHARSET);
        byteCollector.addBytes(randomStrBytes);
        byteCollector.addBytes(networkBytesOrder);
        byteCollector.addBytes(textBytes);
        byteCollector.addBytes(clientIdBytes);
        byte[] padBytes = PKCS7Encoder.encode(byteCollector.size());
        byteCollector.addBytes(padBytes);
        byte[] unencrypted = byteCollector.toBytes();
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            SecretKeySpec keySpec = new SecretKeySpec(aesKey, "AES");
            IvParameterSpec iv = new IvParameterSpec(aesKey, 0, 16);
            cipher.init(Cipher.ENCRYPT_MODE, keySpec, iv);
            byte[] encrypted = cipher.doFinal(unencrypted);
            return base64.encodeToString(encrypted);
        } catch (Exception e) {
            throw new TpException(TpErrorEnum.ENCRYPT_AES_ERROR);
        }
    }
    /**
     * 对密文进行解密
     *
     * @param text 需要解密的密文
     *
     * @return 解密得到的明文
     *
     * @throws TpException 异常错误信息
     */
    public String decrypt(String text)
            throws TpException {
        byte[] original;
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
            SecretKeySpec keySpec = new SecretKeySpec(aesKey, "AES");
            IvParameterSpec iv = new IvParameterSpec(Arrays.copyOfRange(aesKey, 0, 16));
            cipher.init(Cipher.DECRYPT_MODE, keySpec, iv);
            byte[] encrypted = Base64.decodeBase64(text);
            original = cipher.doFinal(encrypted);
        } catch (Exception e) {
            throw new TpException(TpErrorEnum.DECRYPT_AES_ERROR);
        }
        String xmlContent;
        String fromClientId;
        try {
            // 去除补位字符
            byte[] bytes = PKCS7Encoder.decode(original);
            // 分离16位随机字符串,网络字节序和ClientId
            byte[] networkOrder = Arrays.copyOfRange(bytes, 16, 20);
            int xmlLength = recoverNetworkBytesOrder(networkOrder);
            xmlContent = new String(Arrays.copyOfRange(bytes, 20, 20 + xmlLength), CHARSET);
            fromClientId = new String(Arrays.copyOfRange(bytes, 20 + xmlLength, bytes.length), CHARSET);
        } catch (Exception e) {
            throw new TpException(TpErrorEnum.ILLEGAL_BUFFER_ERROR);
        }
        return xmlContent;
    }
    /**
     * 加密机密demo
     * @param args
     */
    public static void main(String[] args) {
        String clientId = "1172";
        String key = "ql1234fnhsjndyskemdlsowerfvmjhxswedfrtgbqwe";
        AesEncryptUtil aesEncryptUtil = new AesEncryptUtil(key, clientId);
        String enData = aesEncryptUtil.encrypt(aesEncryptUtil.getRandomStr(), "test");
        String deData = aesEncryptUtil.decrypt(data);
    }

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