code: public static void post(String url, Integer timeout,
                            IProcessInputStream processInputStream)
        throws IOException {
      Preconditions.checkNotNull(timeout, "timeout");
      Preconditions.checkNotNull(processInputStream, "processInputStream");
      PostMethod postMethod = new PostMethod(url);
      try {
        HttpClient httpClient = new HttpClient();
        httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(timeout);
        httpClient.getHttpConnectionManager().getParams().setSoTimeout(timeout);
        int statusCode = httpClient.executeMethod(postMethod);
        if (statusCode == HttpStatus.SC_OK || statusCode == HttpStatus.SC_CREATED) {
          InputStream inputStream = postMethod.getResponseBodyAsStream();
          processInputStream.process(inputStream);
        } else {
          throw new IOException("Failed to perform POST request. Status code: " + statusCode);
        }
      } finally {
        postMethod.releaseConnection();
      }
    }
docs: Uses the post method to send a url with arguments by http, this method can call RESTful Api.
  
  @param url the http url
  @param timeout milliseconds to wait for the server to respond before giving up
  @param processInputStream the response body stream processor