fix: #3449 accept slice parameter as json.RawMessage for http request (#3452)

util/gconv/gconv_convert.go

@@ -7,9 +7,12 @@
 package gconv
 
 import (
+	"context"
 	"reflect"
 	"time"
 
+	"github.com/gogf/gf/v2/internal/intlog"
+	"github.com/gogf/gf/v2/internal/json"
 	"github.com/gogf/gf/v2/os/gtime"
 )
 
@@ -270,7 +273,12 @@ func doConvert(in doConvertInput) (convertedValue interface{}) {
 		return Maps(in.FromValue)
 
 	case "RawMessage", "json.RawMessage":
-		return Bytes(in.FromValue)
+		// issue 3449
+		bytes, err := json.Marshal(in.FromValue)
+		if err != nil {
+			intlog.Errorf(context.TODO(), `%+v`, err)
+		}
+		return bytes
 
 	default:
 		if in.ReferValue != nil {

util/gconv/gconv_z_unit_struct_test.go

@@ -1303,6 +1303,33 @@ func Test_Struct_Issue1597(t *testing.T) {
 	})
 }
 
+// https://github.com/gogf/gf/issues/3449
+func Test_Struct_Issue3449(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		type S struct {
+			A int
+			B json.RawMessage
+		}
+
+		jsonByte := []byte(`{
+		"a":1, 
+		"b":[{
+            "k1": "11",
+            "k2": "12"
+        },
+        {
+            "k1": "21",
+            "k2": "22"
+        }]}`)
+		data, err := gjson.DecodeToJson(jsonByte)
+		t.AssertNil(err)
+		s := &S{}
+		err = data.Scan(s)
+		t.AssertNil(err)
+		t.Assert(s.B, `[{"k1":"11","k2":"12"},{"k1":"21","k2":"22"}]`)
+	})
+}
+
 // https://github.com/gogf/gf/issues/2980
 func Test_Struct_Issue2980(t *testing.T) {
 	type Post struct {