diff --git a/controller/mysql.go b/controller/mysql.go
index afd1593..3e2d727 100644
--- a/controller/mysql.go
+++ b/controller/mysql.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"github.com/gin-gonic/gin"
 	"github.com/taoshihan1991/imaptool/config"
+	"github.com/taoshihan1991/imaptool/database"
 	"github.com/taoshihan1991/imaptool/tools"
 	"os"
 )
@@ -22,6 +23,17 @@ func MysqlSetConf(c *gin.Context) {
 	mysqlDb:=c.PostForm("database")
 	mysqlUsername:=c.PostForm("username")
 	mysqlPassword:=c.PostForm("password")
+	dsn:=fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8", mysqlUsername,mysqlPassword, mysqlServer, mysqlPort, mysqlDb)
+	mysql:=database.NewMysql()
+	mysql.Dsn=dsn
+	err:=mysql.Ping()
+	if err!=nil{
+		c.JSON(200, gin.H{
+			"code": 403,
+			"msg":  "数据库连接失败："+err.Error(),
+		})
+		return
+	}
 	isExist, _ := tools.IsFileExist(config.Dir)
 	if !isExist {
 		os.Mkdir(config.Dir, os.ModePerm)
diff --git a/database/mysql.go b/database/mysql.go
new file mode 100644
index 0000000..e793887
--- /dev/null
+++ b/database/mysql.go
@@ -0,0 +1,25 @@
+package database
+
+import (
+	"database/sql"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/taoshihan1991/imaptool/config"
+)
+type Mysql struct{
+	SqlDB *sql.DB
+	Dsn  string
+}
+func NewMysql()*Mysql{
+	mysqlInfo:=config.GetMysql()
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8", mysqlInfo["Username"], mysqlInfo["Password"], mysqlInfo["Server"], mysqlInfo["Port"], mysqlInfo["Database"])
+	return &Mysql{
+		Dsn:dsn,
+	}
+}
+
+func (db *Mysql)Ping()error{
+	sqlDb, _ := sql.Open("mysql", db.Dsn)
+	db.SqlDB=sqlDb
+	return db.SqlDB.Ping()
+}
\ No newline at end of file
diff --git a/go.mod b/go.mod
index 6d0d81d..c51dc52 100644
--- a/go.mod
+++ b/go.mod
@@ -11,6 +11,7 @@ require (
 	github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21
 	github.com/emersion/go-smtp v0.13.0
 	github.com/gin-gonic/gin v1.6.3
+	github.com/go-sql-driver/mysql v1.5.0
 	github.com/gobuffalo/packr/v2 v2.5.1
 	github.com/gorilla/websocket v1.4.2
 	golang.org/x/net v0.0.0-20200513185701-a91f0712d120
diff --git a/go.sum b/go.sum
index ebc9e01..3104dfe 100644
--- a/go.sum
+++ b/go.sum
@@ -37,6 +37,8 @@ github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD87
 github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
 github.com/go-playground/validator/v10 v10.2.0 h1:KgJ0snyC2R9VXYN2rneOtQcw5aHQB1Vv0sFl1UcHBOY=
 github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI=
+github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
+github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
 github.com/gobuffalo/envy v1.7.0 h1:GlXgaiBkmrYMHco6t4j7SacKO4XUjvh5pwXh0f4uxXU=
 github.com/gobuffalo/envy v1.7.0/go.mod h1:n7DRkBerg/aorDM8kbduw5dN3oXGswK5liaSCx4T5NI=
 github.com/gobuffalo/logger v1.0.0 h1:xw9Ko9EcC5iAFprrjJ6oZco9UpzS5MQ4jAwghsLHdy4=
diff --git a/static/html/setting_bottom.html b/static/html/setting_bottom.html
index 5184a49..04794f2 100644
--- a/static/html/setting_bottom.html
+++ b/static/html/setting_bottom.html
@@ -65,11 +65,10 @@
                 let _this=this;
                 this.$refs[formName].validate((valid) => {
                     if (valid) {
-                        let _this=this;
                         $.ajax({
                             type:"POST",
                             url:"/mysql",
-                            data:this.mysql,
+                            data:_this.mysql,
                             headers:{
                                 "token":localStorage.getItem("token")
                             },