fix issue gogf#2516 (gogf#2531)

* fix issue gogf#2516

* golang ci configuration updates

* add example for default value of http request

.golangci.yml

@@ -135,7 +135,7 @@ linters-settings:
   goconst:
     # Minimal length of string constant.
     # Default: 3
-    min-len: 2
+    min-len: 4
     # Minimum occurrences of constant string count to trigger issue.
     # Default: 3
     # For subsequent optimization, the value is reduced.

example/httpserver/default_value/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"context"
+
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/net/ghttp"
+)
+
+type GetListReq struct {
+	g.Meta `path:"/" method:"get"`
+	Type   string `v:"required#请选择内容模型" dc:"内容模型"`
+	Page   int    `v:"min:0#分页号码错误"      dc:"分页号码" d:"1"`
+	Size   int    `v:"max:50#分页数量最大50条" dc:"分页数量，最大50" d:"10"`
+	Sort   int    `v:"in:0,1,2#排序类型不合法" dc:"排序类型(0:最新, 默认。1:活跃, 2:热度)"`
+}
+type GetListRes struct {
+	Items []Item `dc:"内容列表"`
+}
+
+type Item struct {
+	Id    int64  `dc:"内容ID"`
+	Title string `dc:"内容标题"`
+}
+
+type Controller struct{}
+
+func (Controller) GetList(ctx context.Context, req *GetListReq) (res *GetListRes, err error) {
+	g.Log().Info(ctx, req)
+	return
+}
+
+func main() {
+	s := g.Server()
+	s.Group("/content", func(group *ghttp.RouterGroup) {
+		group.Middleware(ghttp.MiddlewareHandlerResponse)
+		group.Bind(&Controller{})
+	})
+	s.SetPort(8199)
+	s.Run()
+}

net/ghttp/ghttp_middleware_tracing.go

@@ -18,6 +18,7 @@ import (
 	"go.opentelemetry.io/otel/trace"
 
 	"github.com/gogf/gf/v2"
+	"github.com/gogf/gf/v2/errors/gerror"
 	"github.com/gogf/gf/v2/internal/httputil"
 	"github.com/gogf/gf/v2/internal/utils"
 	"github.com/gogf/gf/v2/net/gtrace"
@@ -80,7 +81,12 @@ func internalMiddlewareServerTracing(r *Request) {
 	}
 
 	// Request content logging.
-	reqBodyContentBytes, _ := ioutil.ReadAll(r.Body)
+	reqBodyContentBytes, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		r.SetError(gerror.Wrap(err, `read request body failed`))
+		span.SetStatus(codes.Error, fmt.Sprintf(`%+v`, err))
+		return
+	}
 	r.Body = utils.NewReadCloser(reqBodyContentBytes, false)
 
 	span.AddEvent(tracingEventHttpRequest, trace.WithAttributes(
@@ -97,7 +103,7 @@ func internalMiddlewareServerTracing(r *Request) {
 	r.Middleware.Next()
 
 	// Error logging.
-	if err := r.GetError(); err != nil {
+	if err = r.GetError(); err != nil {
 		span.SetStatus(codes.Error, fmt.Sprintf(`%+v`, err))
 	}
 	// Response content logging.