code: public static String getLocalHostPort() {
          String defaultPort = SystemPropertiesUtils.getSystemProperty(
                  NaviCommonConstant.SYSTEM_PROPERTY_SERVER_PORT_FROM_SLASH_D_4JPAAS1,
                  NaviCommonConstant.SYSTEM_PROPERTY_SERVER_PORT_FROM_ENV_4JPAAS1, ""
                          + RpcServerConf.SERVER_PORT);
          return SystemPropertiesUtils.getSystemProperty(
                  NaviCommonConstant.SYSTEM_PROPERTY_SERVER_PORT_FROM_ENV_4JPAAS2, defaultPort);
      }
docs: 获取服务端口
  
  @return 本地ipport