code: public static void sendError(int errorCode, String errorContent) {
  		HttpServletResponse response = Response.getServletResponse();
  		try {
  			if(HuluSetting.isDevMode) {
  				response.sendError(errorCode);
  			}else {
  				response.sendError(errorCode, errorContent);
  			}
  		} catch (IOException e) {
  			log.error(e, "Error when sendError!");
  		}
  	}
docs: 将错误发送到容器
  @param errorCode 错误代码
  @param errorContent 错误信息