文档支持解析最小值、最大值、默认值

struct_field.go

@@ -70,31 +70,34 @@ func (psf parseStructFieldTag) GetDefaultValue(structField reflect.StructField)
 	defaultTagList := []string{define.TagD, define.TagDefault}
 	fieldType := structField.Type.Kind().String()
 	for _, tag := range defaultTagList {
-		if val, exist := structField.Tag.Lookup(tag); exist && val != "" {
-			if strings.HasPrefix(fieldType, "int") {
-				i, _ := strconv.Atoi(val)
-				return i
-			}
-			if strings.HasPrefix(fieldType, "uint") {
-				uintVal, _ := strconv.ParseUint(val, 10, 64)
-				return uintVal
-			}
-			if strings.HasPrefix(fieldType, "float") {
-				floatVal, _ := strconv.ParseFloat(val, 64)
-				return floatVal
-			}
-			if strings.HasPrefix(fieldType, "string") {
-				return val
-			}
-			if strings.HasPrefix(fieldType, "bool") {
-				if val == "true" {
-					return true
-				} else {
-					return false
-				}
-			}
+		val, exist := structField.Tag.Lookup(tag)
+		val = strings.TrimSpace(val)
+		if !exist || len(val) == 0 {
+			continue
+		}
+		if strings.HasPrefix(fieldType, "int") {
+			i, _ := strconv.Atoi(val)
+			return i
+		}
+		if strings.HasPrefix(fieldType, "uint") {
+			uintVal, _ := strconv.ParseUint(val, 10, 64)
+			return uintVal
+		}
+		if strings.HasPrefix(fieldType, "float") {
+			floatVal, _ := strconv.ParseFloat(val, 64)
+			return floatVal
+		}
+		if strings.HasPrefix(fieldType, "string") {
 			return val
 		}
+		if strings.HasPrefix(fieldType, "bool") {
+			if val == "true" {
+				return true
+			} else {
+				return false
+			}
+		}
+		return val
 	}
 	return nil
 }