增加获取默认值方法

filter.go

@@ -7,7 +7,10 @@
 // Date : 2022-07-04 11:45
 package util
 
-import "github.com/Jeffail/gabs"
+import (
+	"github.com/Jeffail/gabs"
+	"github.com/pkg/errors"
+)
 
 // MapRule 映射规则
 //
@@ -61,5 +64,54 @@ func (f *filter) Deal() ([]byte, error) {
 //
 // Date : 12:25 2022/7/4
 func (f *filter) getDefaultValue(dataType string, defaultValue string) (interface{}, error) {
-	return nil, nil
+	switch dataType {
+	case "int8":
+		fallthrough
+	case "int16":
+		fallthrough
+	case "int32":
+		fallthrough
+	case "int64":
+		fallthrough
+	case "int":
+		var (
+			err error
+			val int64
+		)
+		err = ConvertAssign(&val, defaultValue)
+		return val, err
+	case "uint8":
+		fallthrough
+	case "uint16":
+		fallthrough
+	case "uint32":
+		fallthrough
+	case "uint64":
+		fallthrough
+	case "uint":
+		var (
+			err error
+			val uint64
+		)
+		err = ConvertAssign(&val, defaultValue)
+		return val, err
+	case "bool":
+		var (
+			err error
+			val bool
+		)
+		err = ConvertAssign(&val, defaultValue)
+		return val, err
+	case "float32":
+		fallthrough
+	case "float64":
+		var (
+			err error
+			val float64
+		)
+		err = ConvertAssign(&val, defaultValue)
+		return val, err
+	default:
+		return nil, errors.New(dataType + " is not support!")
+	}
 }