fix:http rehister url lack / (#1464)

* fix: set strictSlash true

transport/http/server.go

@@ -105,6 +105,15 @@ func TLSConfig(c *tls.Config) ServerOption {
 	}
 }
 
+// StrictSlash is with mux's StrictSlash
+// If true, when the path pattern is "/path/", accessing "/path" will
+// redirect to the former and vice versa.
+func StrictSlash(strictSlash bool) ServerOption {
+	return func(o *Server) {
+		o.strictSlash = strictSlash
+	}
+}
+
 // Server is an HTTP server wrapper.
 type Server struct {
 	*http.Server
@@ -121,6 +130,7 @@ type Server struct {
 	dec         DecodeRequestFunc
 	enc         EncodeResponseFunc
 	ene         EncodeErrorFunc
+	strictSlash bool
 	router      *mux.Router
 	log         *log.Helper
 }
@@ -134,12 +144,13 @@ func NewServer(opts ...ServerOption) *Server {
 		dec:         DefaultRequestDecoder,
 		enc:         DefaultResponseEncoder,
 		ene:         DefaultErrorEncoder,
+		strictSlash: true,
 		log:         log.NewHelper(log.DefaultLogger),
 	}
 	for _, o := range opts {
 		o(srv)
 	}
-	srv.router = mux.NewRouter()
+	srv.router = mux.NewRouter().StrictSlash(srv.strictSlash)
 	srv.router.Use(srv.filter())
 	srv.Server = &http.Server{
 		Handler:   FilterChain(srv.filters...)(srv.router),