grails - 如何从服务方法中找到运行 Grails 应用程序的主机名？

Question

我在控制器中使用 request.getServerName() ，但我正在将我的功能移动到服务中。如何找到运行应用程序的主机名？

Answer 1

If you know that the service method will only ever be called from a controller action then you can use the Spring RequestContextHolder to get access to the current GrailsWebRequest, and from there the request object. But you might be better off passing in the request from the controller or simply trusting grailsApplication.config.grails.serverURL - ideally services shouldn't depend directly on web-tier classes.

If you need this info in a context where you can't use the injected grailsApplication (a constructor, field initializer or static method/closure) then you can access the config via grails.util.Holders.