[TOC] ## 概述 ``` func NewHTTPServer(lc fx.Lifecycle) *http.Server { srv := &http.Server{Addr: ":8080"} lc.Append(fx.Hook{ OnStart: func(ctx context.Context) error { ln, err := net.Listen("tcp", srv.Addr) if err != nil { return err } fmt.Println("Starting HTTP server at", srv.Addr) go srv.Serve(ln) return nil }, OnStop: func(ctx context.Context) error { return srv.Shutdown(ctx) }, }) return srv } func main() { fx.New( fx.Provide(NewHTTPServer), fx.Invoke(func(*http.Server) {}), ).Run() } ```