diff --git a/encoding/xml/xml_test.go b/encoding/xml/xml_test.go
new file mode 100644
index 0000000..866d999
--- /dev/null
+++ b/encoding/xml/xml_test.go
@@ -0,0 +1,19 @@
+package xml
+
+import (
+	"fmt"
+	"testing"
+)
+
+type Map struct {
+	Use int
+	A   string
+}
+
+func TestEncode(t *testing.T) {
+	c := codec{}
+	fmt.Println(c.Marshal(Map{
+		Use: 11,
+		A:   "xxx",
+	}))
+}
diff --git a/transport/http/codec.go b/transport/http/codec.go
index cf65f86..a90a702 100644
--- a/transport/http/codec.go
+++ b/transport/http/codec.go
@@ -57,7 +57,6 @@ func DefaultRequestDecoder(r *http.Request, v any) error {
 	return nil
 }
 func DefaultResponseEncoder(w http.ResponseWriter, r *http.Request, v any) error {
-	fmt.Println("DefaultResponseEncoder")
 	if v == nil {
 		return nil
 	}
@@ -76,12 +75,8 @@ func DefaultResponseEncoder(w http.ResponseWriter, r *http.Request, v any) error
 	return err
 }
 func DefaultErrorEncoder(w http.ResponseWriter, r *http.Request, err error) {
-	fmt.Println("DefaultErrorEncoder")
 	se := errors.FromError(err)
 	codec, _ := CodeForRequest(r, "Accept")
-	codec = encoding.GetCodec("xml")
-	fmt.Println(codec.Name())
-	fmt.Printf("%+v\n", se)
 	body, err := codec.Marshal(se)
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)