diff --git a/model.go b/model.go
index c3eee0a..a49efe1 100644
--- a/model.go
+++ b/model.go
@@ -1,10 +1,10 @@
 package model
 
 import (
-	"strconv"
 	"strings"
 	"time"
 
+	"gorm.io/driver/mysql"
 	"gorm.io/driver/postgres"
 	"gorm.io/gorm"
 	"qoobing.com/gomod/database"
@@ -34,7 +34,7 @@ var (
 	defaultDsn        string
 	defaultDbDebug    bool
 	defaultGormDB     *gorm.DB
-	defaultRds        redis.Config
+	defaultRds        *redis.Config
 	defaultRedis      *redis.Pool
 	defaultRedisDebug bool
 	defaultOptions    []Option
@@ -62,12 +62,12 @@ func NewModelDefaultDatabase() *Model {
 func NewModelWithOption(options ...Option) *Model {
 	n := 0
 	m := Model{}
-	log.Debugf("Start NewModelWithOption...")
+	//log.Debugf("Start NewModelWithOption...")
 	for _, option := range options {
 		n++
 		option(&m)
 	}
-	log.Debugf("Finish NewModelWithOption(with %d options)", n)
+	//log.Debugf("Finish NewModelWithOption(with %d options)", n)
 	return &m
 }
 
@@ -113,32 +113,67 @@ type Option func(*Model)
 
 // OptOpenDefaultDatabase option function for open default database
 func OptOpenDefaultDatabase(m *Model) {
+	var err error
+	if defaultDb == nil {
+		panic("defaultDb not init")
+	}
+
 	if defaultGormDB != nil {
 		m.DB = defaultGormDB
-	} else if db, err := gorm.Open(
-		postgres.New(postgres.Config{
-			DSN:                  defaultDsn,
-			PreferSimpleProtocol: true,
-		}), &gorm.Config{}); err != nil {
+		//TODO: check cocurrent
+		m.DB = m.DB.Session(&gorm.Session{QueryFields: true})
+		//log.Debugf("Opt for open default database done")
+		return
+	}
+
+	var dialector gorm.Dialector
+	var gormconfig = &gorm.Config{
+		NowFunc: func() time.Time {
+			return time.Now().UTC()
+		},
+	}
+	switch defaultDb.Type {
+	case "mysql":
+		dialector = mysql.New(
+			mysql.Config{
+				DSN:               defaultDsn,
+				DefaultStringSize: 512,
+			},
+		)
+	case "pgsql":
+		dialector = postgres.New(
+			postgres.Config{
+				DSN:                  defaultDsn,
+				PreferSimpleProtocol: true,
+			},
+		)
+	default:
+		panic("UNKNOWN DATABASE TYPE:" + defaultDb.Type)
+	}
+
+	var db *gorm.DB
+	db, err = gorm.Open(dialector, gormconfig)
+	if err != nil {
+		panic("DATABASE_OPEN_ERROR")
+	}
+
+	if defaultDbDebug {
+		m.DB = db.Debug()
+	} else {
+		m.DB = db
+	}
+	if sqlDB, err := m.DB.DB(); err != nil {
 		panic("DATABASE_OPEN_ERROR")
 	} else {
-		if defaultDbDebug {
-			m.DB = db.Debug()
-		} else {
-			m.DB = db
-		}
-		if sqlDB, err := m.DB.DB(); err != nil {
-			panic("DATABASE_OPEN_ERROR")
-		} else {
-			sqlDB.SetMaxIdleConns(3)
-			sqlDB.SetMaxOpenConns(10)
-			sqlDB.SetConnMaxLifetime(time.Minute)
-		}
-		defaultGormDB = m.DB
+		sqlDB.SetMaxIdleConns(3)
+		sqlDB.SetMaxOpenConns(10)
+		sqlDB.SetConnMaxLifetime(time.Minute)
 	}
+	defaultGormDB = m.DB
+
 	//TODO: check cocurrent
 	m.DB = m.DB.Session(&gorm.Session{QueryFields: true})
-	log.Debugf("Opt for open default database done")
+	//log.Debugf("Opt for open default database done")
 	return
 }
 
@@ -147,7 +182,7 @@ func OptOpenDefaultRedis(m *Model) {
 	if defaultRedis != nil {
 		m.Redis = defaultRedis.Get()
 		m.RedisPool = defaultRedis
-	} else if pool := sentinel.NewPool(defaultRds); pool == nil {
+	} else if pool := sentinel.NewPool(*defaultRds); pool == nil {
 		panic("REDIS_ERROR")
 	} else {
 		defaultRedis = pool
@@ -155,32 +190,27 @@ func OptOpenDefaultRedis(m *Model) {
 		m.RedisPool = defaultRedis
 	}
 
-	log.Debugf("Opt for open default redis done")
+	//log.Debugf("Opt for open default redis done")
 	return
 }
 
 // Init init default database config & redis config
-func Init(defaultDb *database.Config, defaultRds *redis.Config) {
+func Init(_defaultDb *database.Config, _defaultRds *redis.Config) {
+	defaultDb = _defaultDb
+	defaultRds = _defaultRds
 	defaultOptions = []Option{}
 
-	if defaultDb != nil{
+	if defaultDb != nil {
 		// database init
-		arrConfStr := []string{
-			"host=" + defaultDb.Host,
-			"port=" + strconv.Itoa(defaultDb.Port),
-			"user=" + defaultDb.Username,
-			"password=" + defaultDb.Password,
-			"dbname=" + defaultDb.Dbname,
-			defaultDb.ExtraParameters,
-		}
-		defaultDsn = strings.Join(arrConfStr, " ")
+		defaultDsn = database.GetDsn(defaultDb)
 		defaultDbDebug = defaultDb.Debug
+
 		// database debug
 		if defaultDbDebug && len(defaultDb.Password) > 5 {
 			p := defaultDb.Password
 			l := len(p)
 			secDefaultDsn := strings.Replace(defaultDsn, p[2:l-3], "*****", 1)
-			log.Debugf("defaultDsn='%s'", secDefaultDsn)
+			log.Infof("defaultDsn='%s'", secDefaultDsn)
 		}
 
 		defaultOptions = append(defaultOptions, OptOpenDefaultDatabase)
@@ -190,11 +220,12 @@ func Init(defaultDb *database.Config, defaultRds *redis.Config) {
 		// redis init
 		defaultRds = defaultRds
 		defaultRedisDebug = defaultRds.Debug
+
 		// redis debug
 		if defaultRedisDebug && len(defaultRds.Password) > 5 {
 			p := defaultRds.Password
 			l := len(p)
-			secDefaultRds := defaultRds
+			secDefaultRds := *defaultRds
 			secDefaultRds.Password = strings.Replace(p, p[2:l-3], "*****", 1)
 			log.PrintPretty("defaultRds=", secDefaultRds)
 		}