下游服務controller:

public class BaseController { 
protected String sessionId = null; 
protected void getSessionIdFromRequest(HttpServletRequest request) {
 this.sessionId = request.getHeader().get("Session-Id");
 }
}

報錯資訊：

No primary or default constructor found for interface javax.servlet.http.HttpServletReques

原因：Gateway中不支援HttpServletRequest，換成ServerHttpRequest