code: public static HttpConfiguration createHttpConfiguration() {
  		HttpConfiguration httpConfig = new HttpConfiguration();
  
  		httpConfig.setSecurePort(setting.getInt("secure-port", "http", 8443));
  		httpConfig.setOutputBufferSize(setting.getInt("output-buffersize", "http", 32768));
  		httpConfig.setRequestHeaderSize(setting.getInt("request-headersize", "http", 8192));
  		httpConfig.setResponseHeaderSize(setting.getInt("response-headersize", "http", 8192));
  		httpConfig.setSendServerVersion(true);
  		httpConfig.setSendDateHeader(false);
  
  		return httpConfig;
  	}
docs: 创建HttpConfiguration
  
  @return HttpConfiguration