api swagger ui update

example/httpserver/swagger/config.yaml

@@ -0,0 +1,4 @@
+server:
+  address:     ":8199"
+  openapiPath: "/api.json"
+  swaggerPath: "/swagger"

example/httpserver/swagger/main.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/net/ghttp"
+)
+
+type HelloReq struct {
+	g.Meta `path:"/hello" method:"get"`
+	Name   string `v:"required" dc:"Your name"`
+}
+type HelloRes struct {
+	Reply string `dc:"Reply content"`
+}
+
+type Hello struct{}
+
+func (Hello) Say(ctx context.Context, req *HelloReq) (res *HelloRes, err error) {
+	g.Log().Debugf(ctx, `receive say: %+v`, req)
+	res = &HelloRes{
+		Reply: fmt.Sprintf(`Hi %s`, req.Name),
+	}
+	return
+}
+
+func main() {
+	s := g.Server()
+	s.Use(ghttp.MiddlewareHandlerResponse)
+	s.Group("/", func(group *ghttp.RouterGroup) {
+		group.Bind(
+			new(Hello),
+		)
+	})
+	s.Run()
+}