How to get the Vaadin 7 application server IP and port?

问题

How can I get the protocol, IP and port of the app server running my Vaadin webapp? I'm using Vaadin 7.

In vaadin 6 I doing in this way, but not work in vaadin 7:

String server = ((WebApplicationContext) this.getContext()).getHttpSession().getServletContext().getServerInfo();

java.net.URL url = this.getURL();
String s = url.getHost()+":"+url.getPort()+url.getPath();

回答1:

System.out.println(UI.getCurrent().getPage().getLocation().getHost());
System.out.println(UI.getCurrent().getPage().getLocation().getPath());
System.out.println(UI.getCurrent().getPage().getLocation().getPort());

回答2:

I do it like this:

String basePath = Page.getCurrent().getLocation().getScheme() + ":" +
                  Page.getCurrent().getLocation().getSchemeSpecificPart()

回答3:

as for the application path part, to get the real application directory and not the browser request path, use VaadinServlet.getCurrent().getServletContext().getContextPath()

来源：https://stackoverflow.com/questions/21788023/how-to-get-the-vaadin-7-application-server-ip-and-port