diff --git a/.gitignore b/.gitignore
index 04675b1..713c541 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ background
 image/
 deploy.bat
 docbackground.exe
+__debug_bin
diff --git a/db/sqlManager.go b/db/sqlManager.go
index b2017c6..b43ce05 100644
--- a/db/sqlManager.go
+++ b/db/sqlManager.go
@@ -10,6 +10,7 @@ import (
 	"io/ioutil"
 	"log"
 	"os"
+	"time"
 
 	"github.com/go-sql-driver/mysql"
 	_ "github.com/go-sql-driver/mysql"
@@ -31,20 +32,78 @@ func Init() {
 	//InitMongoDb()
 	log.Print("api runmode is " + config.ApiConfig().RunMode)
 	if config.ApiConfig().RunMode == "debug" {
-		gDb = Database{Type: string(""), DB: initMysql(mysqlconf)}
-		sqls := fmt.Sprintf("%s:%s@(%s)/%s?charset=utf8&parseTime=True&loc=Local",
-			mysqlconf.UserName, mysqlconf.Password, mysqlconf.Addr,
-			mysqlconf.Db)
-		log.Print(sqls)
-		gOrm, e = gorm.Open("mysql", sqls)
+		gDb = Database{Type: string(""), DB: initMysqlTLS(mysqlconf)}
+		rootCertPool := x509.NewCertPool()
+		pem, err := ioutil.ReadFile("pem/ca.pem")
+		if err != nil {
+			log.Fatal(err)
+		}
+		if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
+			log.Fatal("Failed to append PEM.")
+		}
+		clientCert := make([]tls.Certificate, 0, 1)
+		certs, err := tls.LoadX509KeyPair("pem/client-cert.pem", "pem/client-key.pem")
+		if err != nil {
+			log.Fatal(err)
+		}
+		clientCert = append(clientCert, certs)
+		mysql.RegisterTLSConfig("custom", &tls.Config{
+			RootCAs:            rootCertPool,
+			Certificates:       clientCert,
+			InsecureSkipVerify: true,
+		})
+		// try to connect to mysql database.
+		cfg := mysql.Config{
+			User:                 config.GetMysqlBlogConfig().UserName,
+			Passwd:               config.GetMysqlBlogConfig().Password,
+			Addr:                 config.GetMysqlBlogConfig().Addr, //IP:PORT
+			Net:                  "tcp",
+			DBName:               "background",
+			Loc:                  time.Local,
+			AllowNativePasswords: true,
+		}
+		cfg.TLSConfig = "custom"
+		str := cfg.FormatDSN()
+		gOrm, e = gorm.Open("mysql", str)
 		if nil != e {
 			log.Print(e.Error())
 			os.Exit(-1)
 		}
 	} else {
-		sqls := fmt.Sprintf("%s:%s@/%s?charset=utf8&parseTime=True&loc=Local", mysqlconf.UserName, mysqlconf.Password,
-			mysqlconf.Db)
-		gOrm, e = gorm.Open("mysql", sqls)
+		rootCertPool := x509.NewCertPool()
+		pem, err := ioutil.ReadFile("pem/ca.pem")
+		if err != nil {
+			log.Fatal(err)
+		}
+		if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
+			log.Fatal("Failed to append PEM.")
+		}
+		clientCert := make([]tls.Certificate, 0, 1)
+		certs, err := tls.LoadX509KeyPair("pem/client-cert.pem", "pem/client-key.pem")
+		if err != nil {
+			log.Fatal(err)
+		}
+		clientCert = append(clientCert, certs)
+		log.Print("client cert is ", clientCert)
+		mysql.RegisterTLSConfig("custom", &tls.Config{
+			RootCAs:      rootCertPool,
+			Certificates: clientCert,
+		})
+
+		// try to connect to mysql database.
+		cfg := mysql.Config{
+			User:                 config.GetMysqlBlogConfig().UserName,
+			Passwd:               config.GetMysqlBlogConfig().Password,
+			Addr:                 config.GetMysqlBlogConfig().Addr, //IP:PORT
+			Net:                  "tcp",
+			DBName:               "background",
+			Loc:                  time.Local,
+			AllowNativePasswords: true,
+		}
+		cfg.TLSConfig = "custom"
+		str := cfg.FormatDSN()
+		log.Print(str)
+		gOrm, e = gorm.Open("mysql", str)
 		if nil != e {
 			log.Print(e.Error())
 			os.Exit(-1)
@@ -72,18 +131,14 @@ func initMysql(mysqlconf *config.MysqlConfig) *sql.DB {
 	cnn := fmt.Sprintf("%s:%s@tcp(%s:3306)/%s?charset=utf8", mysqlconf.UserName, mysqlconf.Password,
 		mysqlconf.Addr, mysqlconf.Db)
 	log.Print("Connect to mysql " + cnn)
-
-	//db := mysql.New(proto, "", addr, user, pass, dbname)
-
 	_db, err := sql.Open("mysql", cnn)
 	if err != nil {
 		fmt.Println("connect sql server ", err.Error())
 		os.Exit(200)
-
 	}
 	e := _db.Ping()
 	if nil != e {
-		fmt.Println(e.Error())
+		fmt.Println("ping mysql server error", e.Error())
 		os.Exit(200)
 	}
 	return _db
diff --git a/main.go b/main.go
index 6d98b42..31ba787 100644
--- a/main.go
+++ b/main.go
@@ -13,8 +13,8 @@ import (
 	"strconv"
 
 	"github.com/gin-gonic/gin"
-	swaggerFiles "github.com/swaggo/files"     // swagger embed files
 	ginSwagger "github.com/swaggo/gin-swagger" // gin-swagger middleware
+	"github.com/swaggo/gin-swagger/swaggerFiles"
 	sessions "github.com/tommy351/gin-sessions"
 )