diff --git a/sql2go/define.go b/sql2go/define.go
index b89a632..d43356f 100644
--- a/sql2go/define.go
+++ b/sql2go/define.go
@@ -7,47 +7,50 @@
 // Date : 2021-10-25 4:50 下午
 package sql2go
 
+import "git.zhangdeman.cn/zhangdeman/consts"
+
 // sqlTypeMap mysql数据类型 => go 数据类型映射
 //
 // Author : go_developer@163.com<白茶清欢>
 //
 // Date : 4:50 下午 2021/10/25
 var sqlTypeMap = map[string]string{
-	"int":                "int",
-	"integer":            "int",
-	"tinyint":            "int8",
-	"smallint":           "int16",
-	"mediumint":          "int32",
-	"bigint":             "int64",
-	"int unsigned":       "uint",
-	"integer unsigned":   "uint",
-	"tinyint unsigned":   "uint8",
-	"smallint unsigned":  "uint16",
-	"mediumint unsigned": "uint32",
-	"bigint unsigned":    "uint64",
+	"int":                consts.DataTypeInt.String(),
+	"integer":            consts.DataTypeInt.String(),
+	"tinyint":            consts.DataTypeInt8.String(),
+	"smallint":           consts.DataTypeInt16.String(),
+	"mediumint":          consts.DataTypeInt32.String(),
+	"bigint":             consts.DataTypeInt64.String(),
+	"int unsigned":       consts.DataTypeUint.String(),
+	"integer unsigned":   consts.DataTypeUint.String(),
+	"tinyint unsigned":   consts.DataTypeUint8.String(),
+	"smallint unsigned":  consts.DataTypeUint16.String(),
+	"mediumint unsigned": consts.DataTypeUint32.String(),
+	"bigint unsigned":    consts.DataTypeUint64.String(),
 	"bit":                "byte",
-	"bool":               "bool",
-	"enum":               "string",
-	"set":                "string",
-	"varchar":            "string",
-	"char":               "string",
-	"tinytext":           "string",
-	"mediumtext":         "string",
-	"text":               "string",
-	"longtext":           "string",
-	"blob":               "string",
-	"tinyblob":           "string",
-	"mediumblob":         "string",
-	"longblob":           "string",
+	"bool":               consts.DataTypeBool.String(),
+	"enum":               consts.DataTypeString.String(),
+	"set":                consts.DataTypeString.String(),
+	"varchar":            consts.DataTypeString.String(),
+	"char":               consts.DataTypeString.String(),
+	"tinytext":           consts.DataTypeString.String(),
+	"mediumtext":         consts.DataTypeString.String(),
+	"text":               consts.DataTypeString.String(),
+	"longtext":           consts.DataTypeString.String(),
+	"blob":               consts.DataTypeString.String(),
+	"tinyblob":           consts.DataTypeString.String(),
+	"mediumblob":         consts.DataTypeString.String(),
+	"longblob":           consts.DataTypeString.String(),
 	"date":               "time.Time",
 	"datetime":           "time.Time",
 	"timestamp":          "time.Time",
 	"time":               "time.Time",
-	"float":              "float64",
-	"double":             "float64",
-	"decimal":            "float64",
-	"binary":             "string",
-	"varbinary":          "string",
+	"float":              consts.DataTypeFloat64.String(),
+	"double":             consts.DataTypeFloat64.String(),
+	"decimal":            consts.DataTypeFloat64.String(),
+	"binary":             consts.DataTypeString.String(),
+	"varbinary":          consts.DataTypeString.String(),
+	"json":               consts.DataTypeString.String(),
 }
 
 const (