@Autowired
private ZuulProperties zuulProperties;

@Autowired
ApplicationEventPublisher publisher;

void updateOrAddRoute(boolean isSnRoute) {

	Map<String, ZuulProperties.ZuulRoute> stringZuulRouteMap = zuulProperties.getRoutes();
    String fromUrl = "/prefix/**";
    String toUrl = "http://ip:port/3th/"
    String serverName = "custome.domain.com";
    Integer port = null;
	String key = "sn.routeid.1";
	if (isSnRoute) {
		if (!stringZuulRouteMap.containsKey(key)) {
			stringZuulRouteMap.put(key, new SNZuulRoute());
		}
		ZuulProperties.ZuulRoute snRoute = stringZuulRouteMap.get(key);
		snRoute.setId(key);
		snRoute.setPath(SNExchange.getServerNamePath(fromUrl, serverName,port));
		snRoute.setUrl(toUrl);
		//note this.
		((SNZuulRoute) snRoute).setServerName(serverName);
		((SNZuulRoute) snRoute).setPort(port);
		log.info("id:" + key + " from:" + snRoute.getPath() + " to:" + toUrl);
	}
	else {
		if (!stringZuulRouteMap.containsKey(key)) {
			stringZuulRouteMap.put(key, new ZuulProperties.ZuulRoute());
		}
		ZuulProperties.ZuulRoute route = stringZuulRouteMap.get(key);
		route.setId(key);
		route.setPath(fromUrl);
		route.setUrl(toUrl);
		log.info("id:" + key + " from:" + route.getPath() + " to:" + toUrl);
	}
}

public void refreshRoute() {
	RoutesRefreshedEvent routesRefreshedEvent = new RoutesRefreshedEvent(routeLocator);
	publisher.publishEvent(routesRefreshedEvent);
}