private HashMap<String, String> parsePOSTParams() {
        HashMap<String, String> paramMap = new HashMap<>();
        String[] baseParams = body.split("&");
        for (String param : baseParams) {
            String[] paramsKV = param.split("=");
            try {
                String key = paramsKV[0];
                String value = URLDecoder.decode(paramsKV[paramsKV.length - 1], "UTF-8");
                paramMap.put(key, value);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return paramMap;
    }