gorm字段类型设置成map

type AddRuleForm struct {
	Name        string
	Cluster     string
	Alert       string
	Rule        string
	Expr        string
	For         string
	Labels      map[string]string
	Annotations map[string]string
	Desc        string
}

 unsupported data type: &map[]

type AddRuleForm struct {
	Name        string
	Cluster     string
	Alert       string
	Rule        string
	Expr        string
	For         string
	Labels      datatypes.JSON
	Annotations datatypes.JSON
	Desc        string
}