diff --git a/const.go b/const.go
new file mode 100644
index 0000000..f104534
--- /dev/null
+++ b/const.go
@@ -0,0 +1,44 @@
+// Package filter ...
+//
+// Description : filter ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2023-05-04 17:29
+package filter
+
+const (
+	DataTypeAny = "interface"
+
+	DataTypeString = "string"
+
+	DataTypeInt8  = "int8"
+	DataTypeInt16 = "int16"
+	DataTypeInt32 = "int32"
+	DataTypeInt64 = "int64"
+	DataTypeInt   = "int"
+
+	DataTypeUint8  = "uint8"
+	DataTypeUint16 = "uint16"
+	DataTypeUint32 = "uint32"
+	DataTypeUint64 = "uint64"
+	DataTypeUint   = "uint"
+
+	DataTypeBool = "bool"
+
+	DataTypeNumber = "number"
+
+	DataTypeFloat32 = "float32"
+	DataTypeFloat64 = "float64"
+	DataTypeDouble  = "float64"
+	DataTypeFloat   = "float"
+
+	DataTypeIntSlice    = "[]int"
+	DataTypeUntSlice    = "[]uint"
+	DataTypeNumberSlice = "[]number"
+	DataTypeFloatSlice  = "[]float"
+	DataTypeBoolSlice   = "[]bool"
+	DataTypeAnySlice    = "[]interface"
+
+	DataTypeObject = "map[string]interface"
+)
diff --git a/filter.go b/filter.go
index 1558979..7274184 100644
--- a/filter.go
+++ b/filter.go
@@ -64,17 +64,7 @@ func (f *filter) Deal() error {
 			continue
 		}
 		sourceResult := gjson.Get(f.sourceData, rule.SourcePath)
-		var (
-			sourceVal string
-		)
-
-		if !sourceResult.Exists() {
-			// 不存在, 使用默认值
-			sourceVal = rule.DefaultValue
-		} else {
-			sourceVal = sourceResult.String()
-		}
-		if formatVal, err = f.getValue(rule.DataType, sourceVal); nil != err {
+		if formatVal, err = f.getValue(rule.DataType, sourceResult, rule.DefaultValue); nil != err {
 			return fmt.Errorf("%s = %v can not convert to %s : %s", rule.SourcePath, sourceResult.Value(), rule.DataType, err.Error())
 		}
 		if f.formatResult, err = sjson.Set(f.formatResult, rule.MapPath, formatVal); nil != err {
@@ -183,56 +173,63 @@ func (f *filter) Parse(receiver interface{}) error {
 // Author : go_developer@163.com<白茶清欢>
 //
 // Date : 12:25 2022/7/4
-func (f *filter) getValue(dataType string, defaultValue string) (interface{}, error) {
+func (f *filter) getValue(dataType string, sourceValue gjson.Result, defaultValue string) (interface{}, error) {
+	sourceValueStr := defaultValue
+	if sourceValue.Exists() {
+		sourceValueStr = sourceValue.String()
+	}
+
 	switch dataType {
-	case "int8":
+	case DataTypeInt8:
 		fallthrough
-	case "int16":
+	case DataTypeInt16:
 		fallthrough
-	case "int32":
+	case DataTypeInt32:
 		fallthrough
-	case "int64":
+	case DataTypeInt64:
 		fallthrough
-	case "int":
+	case DataTypeInt:
 		var (
 			err error
 			val int64
 		)
-		err = util.ConvertAssign(&val, defaultValue)
+		err = util.ConvertAssign(&val, sourceValueStr)
 		return val, err
-	case "uint8":
+	case DataTypeUint8:
 		fallthrough
-	case "uint16":
+	case DataTypeUint16:
 		fallthrough
-	case "uint32":
+	case DataTypeUint32:
 		fallthrough
-	case "uint64":
+	case DataTypeUint64:
 		fallthrough
-	case "uint":
+	case DataTypeUint:
 		var (
 			err error
 			val uint64
 		)
-		err = util.ConvertAssign(&val, defaultValue)
+		err = util.ConvertAssign(&val, sourceValueStr)
 		return val, err
-	case "bool":
+	case DataTypeBool:
 		var (
 			err error
 			val bool
 		)
-		err = util.ConvertAssign(&val, defaultValue)
+		err = util.ConvertAssign(&val, sourceValueStr)
 		return val, err
-	case "float32":
+	case DataTypeFloat32:
 		fallthrough
-	case "float64":
+	case DataTypeFloat64:
 		var (
 			err error
 			val float64
 		)
-		err = util.ConvertAssign(&val, defaultValue)
+		err = util.ConvertAssign(&val, sourceValueStr)
 		return val, err
-	case "string":
+	case DataTypeString:
 		return defaultValue, nil
+	case DataTypeAny:
+		return sourceValue.Value(), nil
 	default:
 		return nil, errors.New(dataType + " is not support!")
 	}