fix bug

http/handle.go

@@ -1,9 +1,13 @@
 package http
 
 import (
+	"io/ioutil"
 	"net/http"
 	"strings"
 
+	"github.com/go-kratos/kratos/v2/transport/http/binding"
+	"google.golang.org/protobuf/types/known/emptypb"
+
 	"github.com/go-kratos/kratos/v2/encoding"
 	"github.com/go-kratos/kratos/v2/errors"
 
@@ -12,23 +16,23 @@ import (
 )
 
 // decodeRequest decodes the request body to object.
-//func DecodeRequest(req *http.Request, v interface{}) error {
-//	method := strings.ToUpper(req.Method)
-//	if method == "POST" || method == "PUT" || method == "DELETE" {
-//		if _, ok := v.(*emptypb.Empty); ok {
-//			return binding.BindForm(req, v)
-//		}
-//		subtype := contentSubtype(req.Header.Get(ContentTypeHeader))
-//		if codec := encoding.GetCodec(subtype); codec != nil {
-//			data, err := ioutil.ReadAll(req.Body)
-//			if err != nil {
-//				return err
-//			}
-//			return codec.Unmarshal(data, v)
-//		}
-//	}
-//	return binding.BindForm(req, v)
-//}
+func DecodeRequest(req *http.Request, v interface{}) error {
+	method := strings.ToUpper(req.Method)
+	if method == "POST" || method == "PUT" || method == "DELETE" {
+		if _, ok := v.(*emptypb.Empty); ok {
+			return binding.BindForm(req, v)
+		}
+		subtype := contentSubtype(req.Header.Get(ContentTypeHeader))
+		if codec := encoding.GetCodec(subtype); codec != nil {
+			data, err := ioutil.ReadAll(req.Body)
+			if err != nil {
+				return err
+			}
+			return codec.Unmarshal(data, v)
+		}
+	}
+	return binding.BindForm(req, v)
+}
 
 func ErrHandle(w http.ResponseWriter, r *http.Request, err error) {
 	se, ok := errors.FromError(err)