小程序敏感信息解密-java

    /**
     * AES解密
     * @param content 密文
     * @return
     * @throws InvalidAlgorithmParameterException
     * @throws NoSuchProviderException
     */
    public static byte[] xcx_decrypt(byte[] content, byte[] keyByte, byte[] ivByte) throws InvalidAlgorithmParameterException {
        initialize();
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
            Key sKeySpec = new SecretKeySpec(keyByte, "AES");    

            cipher.init(Cipher.DECRYPT_MODE, sKeySpec, generateIV(ivByte));// 初始化
            byte[] result = cipher.doFinal(content);
            return result;
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (NoSuchPaddingException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (IllegalBlockSizeException e) {
            e.printStackTrace();
        } catch (BadPaddingException e) {
            e.printStackTrace();
        } catch (NoSuchProviderException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    } 

调用方式：

	public static void main(String[] args) throws Exception {
		byte[] resultByte = AES.xcx_decrypt(Base64.decodeBase64(reqInfoJSONObject.getString("encryptedData")),
				Base64.decodeBase64("sessionKey"), Base64.decodeBase64(reqInfoJSONObject.getString("iv")));
		String userInfo = new String(resultByte, "UTF-8");
		JSONObject userObj = JSONObject.fromObject(userInfo);
		logger.info("userInfo ===>" + userInfo);
		URLEncoder.encode(userObj.getString("nickName"), "utf-8");
		userObj.getString("unionId");

	}