gvalue MapToStruct

util/value/value.go

@@ -1184,6 +1184,10 @@ var typeOfBytes = reflect.TypeOf([]byte(nil))
 // if 'mkey' not exists the filed name will used as map key,  for example: User{} or new(User).
 // Returned newStruct is a struct, for example: newStruct.(User) to assert it type.
 // Details refer to TestMapToStruct.
+// Ignore filed, set tag mkey:"-", for example:
+// User{
+// Age int `mkey:"-"`
+// }
 func MapToStruct(mapData map[string]interface{}, _value interface{}, tagName ...string) (newStruct interface{}, err error) {
 	if IsNil(_value) || (reflect.TypeOf(_value).Kind() != reflect.Struct &&
 		reflect.TypeOf(_value).Kind() != reflect.Ptr) {
@@ -1218,6 +1222,9 @@ func MapToStruct(mapData map[string]interface{}, _value interface{}, tagName ...
 			fieldKind = fieldType.Kind()
 		}
 		col := strings.Split(field.Tag.Get(tag), ",")[0]
+		if col == "-" {
+			continue
+		}
 		val, ok := mapData[col]
 		if !ok {
 			val, ok = mapData[field.Name]

util/value/value_test.go

@@ -538,7 +538,9 @@ type YourStruct struct {
 	ErrStructField YourInnerStruct
 	MapKey         int8 `mkey:"key1"`
 	privateField   int
-	MapField       map[string]interface{} //map field only  map[string]interface{} supported
+	//map field only  map[string]interface{} supported
+	MapField    map[string]interface{}
+	IgnoreField int `mkey:"-"`
 }
 
 type YourInnerStruct struct {
@@ -587,6 +589,7 @@ func TestMapToStruct(t *testing.T) {
 		"key1":         int8(8),
 		"privateField": 1,
 		"MapField":     map[string]string{"abc": "123"},
+		"IgnoreField":  1,
 	}
 
 	for _, v := range []interface{}{YourStruct{}, new(YourStruct)} {
@@ -618,6 +621,7 @@ func TestMapToStruct(t *testing.T) {
 		assert.Equal(t, "nested", yourStruct.PtrStructField.InnerStrField)
 		assert.Equal(t, 0, yourStruct.privateField)
 		assert.Equal(t, "123", yourStruct.MapField["abc"])
+		assert.Equal(t, 0, yourStruct.IgnoreField)
 	}
 	// 测试第二个参数是不同的结构体的情况
 	result, err := MapToStruct(mapData, YourSecondStruct{})