diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index aabc1af..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-language: go
-go:
-  - 1.9.x
-script: go test `go list ./... | grep -v vendor`
-
-notifications:
-  on_success: never
-  on_failure: always
\ No newline at end of file
diff --git a/README.md b/README.md
index b22b816..f9ffaa6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,4 @@
 # gocron - 定时任务管理系统
-[![Build Status](https://travis-ci.org/ouqiang/gocron.png)](https://travis-ci.org/ouqiang/gocron)
 [![Downloads](https://img.shields.io/github/downloads/ouqiang/gocron/total.svg)](https://github.com/ouqiang/gocron/releases)
 [![license](https://img.shields.io/github/license/mashape/apistatus.svg?maxAge=2592000)](https://github.com/ouqiang/gocron/blob/master/LICENSE)
 [![Release](https://img.shields.io/github/release/ouqiang/gocron.svg?label=Release)](https://github.com/ouqiang/gocron/releases)
diff --git a/cmd/gocron/gocron.go b/cmd/gocron/gocron.go
index 5b84bcd..7d845e0 100644
--- a/cmd/gocron/gocron.go
+++ b/cmd/gocron/gocron.go
@@ -35,7 +35,10 @@ func main() {
 	cliApp.Version, _ = goutil.FormatAppVersion(AppVersion, GitCommit, BuildDate)
 	cliApp.Commands = getCommands()
 	cliApp.Flags = append(cliApp.Flags, []cli.Flag{}...)
-	cliApp.Run(os.Args)
+	err := cliApp.Run(os.Args)
+	if err != nil {
+		logger.Fatal(err)
+	}
 }
 
 // getCommands
diff --git a/internal/models/model.go b/internal/models/model.go
index e7804e4..558fe22 100644
--- a/internal/models/model.go
+++ b/internal/models/model.go
@@ -132,8 +132,12 @@ func getDbEngineDSN(setting *setting.Setting) string {
 
 func keepDbAlived(engine *xorm.Engine) {
 	t := time.Tick(dbPingInterval)
+	var err error
 	for {
 		<-t
-		engine.Ping()
+		err = engine.Ping()
+		if err != nil {
+			logger.Infof("database ping: %s", err)
+		}
 	}
 }
diff --git a/internal/models/user.go b/internal/models/user.go
index 8289d80..da1b363 100644
--- a/internal/models/user.go
+++ b/internal/models/user.go
@@ -71,11 +71,8 @@ func (user *User) Match(username, password string) bool {
 		return false
 	}
 	hashPassword := user.encryptPassword(password, user.Salt)
-	if hashPassword != user.Password {
-		return false
-	}
 
-	return true
+	return hashPassword == user.Password
 }
 
 // 获取用户详情
diff --git a/internal/modules/app/app.go b/internal/modules/app/app.go
index a960c42..86aaa30 100644
--- a/internal/modules/app/app.go
+++ b/internal/modules/app/app.go
@@ -104,9 +104,7 @@ func GetCurrentVersionId() int {
 
 // ToNumberVersion 把字符串版本号a.b.c转换为整数版本号abc
 func ToNumberVersion(versionString string) int {
-	if strings.HasPrefix(versionString, "v") {
-		versionString = versionString[1:]
-	}
+	versionString = strings.TrimPrefix(versionString, "v")
 	v := strings.Replace(versionString, ".", "", -1)
 	if len(v) < 3 {
 		v += "0"
diff --git a/internal/modules/notify/mail.go b/internal/modules/notify/mail.go
index 1b3a891..8a4bac2 100644
--- a/internal/modules/notify/mail.go
+++ b/internal/modules/notify/mail.go
@@ -54,7 +54,7 @@ func (mail *Mail) send(mailSetting models.Mail, toUsers []string, msg Message) {
 	gomailMessage.SetHeader("To", toUsers...)
 	gomailMessage.SetHeader("Subject", "gocron-定时任务通知")
 	gomailMessage.SetBody("text/html", body)
-	mailer := gomail.NewPlainDialer(mailSetting.Host, mailSetting.Port,
+	mailer := gomail.NewDialer(mailSetting.Host, mailSetting.Port,
 		mailSetting.User, mailSetting.Password)
 	maxTimes := 3
 	i := 0
diff --git a/internal/modules/rpc/auth/Certification.go b/internal/modules/rpc/auth/Certification.go
index 0bc3fbc..0e47add 100644
--- a/internal/modules/rpc/auth/Certification.go
+++ b/internal/modules/rpc/auth/Certification.go
@@ -22,11 +22,14 @@ func (c Certificate) GetTLSConfigForServer() (*tls.Config, error) {
 		c.CertFile,
 		c.KeyFile,
 	)
+	if err != nil {
+		return nil, err
+	}
 
 	certPool := x509.NewCertPool()
 	bs, err := ioutil.ReadFile(c.CAFile)
 	if err != nil {
-		return nil, errors.New(fmt.Sprintf("failed to read client ca cert: %s", err))
+		return nil, fmt.Errorf("failed to read client ca cert: %s", err)
 	}
 
 	ok := certPool.AppendCertsFromPEM(bs)
@@ -48,11 +51,14 @@ func (c Certificate) GetTransportCredsForClient() (credentials.TransportCredenti
 		c.CertFile,
 		c.KeyFile,
 	)
+	if err != nil {
+		return nil, err
+	}
 
 	certPool := x509.NewCertPool()
 	bs, err := ioutil.ReadFile(c.CAFile)
 	if err != nil {
-		return nil, errors.New(fmt.Sprintf("failed to read ca cert: %s", err))
+		return nil, fmt.Errorf("failed to read ca cert: %s", err)
 	}
 
 	ok := certPool.AppendCertsFromPEM(bs)
diff --git a/internal/modules/rpc/client/client.go b/internal/modules/rpc/client/client.go
index c8e947c..b04e935 100644
--- a/internal/modules/rpc/client/client.go
+++ b/internal/modules/rpc/client/client.go
@@ -6,11 +6,12 @@ import (
 	"sync"
 	"time"
 
+	"google.golang.org/grpc/status"
+
 	"github.com/ouqiang/gocron/internal/modules/logger"
 	"github.com/ouqiang/gocron/internal/modules/rpc/grpcpool"
 	pb "github.com/ouqiang/gocron/internal/modules/rpc/proto"
 	"golang.org/x/net/context"
-	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 )
 
@@ -70,7 +71,7 @@ func Exec(ip string, port int, taskReq *pb.TaskRequest) (string, error) {
 }
 
 func parseGRPCError(err error) (string, error) {
-	switch grpc.Code(err) {
+	switch status.Code(err) {
 	case codes.Unavailable:
 		return "", errUnavailable
 	case codes.DeadlineExceeded:
diff --git a/internal/routers/host/host.go b/internal/routers/host/host.go
index b130ced..688e3f3 100644
--- a/internal/routers/host/host.go
+++ b/internal/routers/host/host.go
@@ -14,7 +14,7 @@ import (
 	"github.com/ouqiang/gocron/internal/modules/utils"
 	"github.com/ouqiang/gocron/internal/routers/base"
 	"github.com/ouqiang/gocron/internal/service"
-	"gopkg.in/macaron.v1"
+	macaron "gopkg.in/macaron.v1"
 )
 
 const testConnectionCommand = "echo hello"
@@ -25,6 +25,9 @@ func Index(ctx *macaron.Context) string {
 	hostModel := new(models.Host)
 	queryParams := parseQueryParams(ctx)
 	total, err := hostModel.Total(queryParams)
+	if err != nil {
+		logger.Error(err)
+	}
 	hosts, err := hostModel.List(queryParams)
 	if err != nil {
 		logger.Error(err)
diff --git a/internal/routers/install/install.go b/internal/routers/install/install.go
index 51177e3..22e0f8c 100644
--- a/internal/routers/install/install.go
+++ b/internal/routers/install/install.go
@@ -148,6 +148,9 @@ func testDbConnection(form InstallForm) error {
 	s.Db.Database = form.DbName
 	s.Db.Charset = "utf8"
 	db, err := models.CreateTmpDb(&s)
+	if err != nil {
+		return err
+	}
 	defer db.Close()
 	err = db.Ping()
 	if s.Db.Engine == "postgres" && err != nil {
diff --git a/internal/routers/loginlog/login_log.go b/internal/routers/loginlog/login_log.go
index 8c36f44..43266e7 100644
--- a/internal/routers/loginlog/login_log.go
+++ b/internal/routers/loginlog/login_log.go
@@ -5,7 +5,7 @@ import (
 	"github.com/ouqiang/gocron/internal/modules/logger"
 	"github.com/ouqiang/gocron/internal/modules/utils"
 	"github.com/ouqiang/gocron/internal/routers/base"
-	"gopkg.in/macaron.v1"
+	macaron "gopkg.in/macaron.v1"
 )
 
 func Index(ctx *macaron.Context) string {
@@ -13,6 +13,9 @@ func Index(ctx *macaron.Context) string {
 	params := models.CommonMap{}
 	base.ParsePageAndPageSize(ctx, params)
 	total, err := loginLogModel.Total()
+	if err != nil {
+		logger.Error(err)
+	}
 	loginLogs, err := loginLogModel.List(params)
 	if err != nil {
 		logger.Error(err)
diff --git a/internal/service/task.go b/internal/service/task.go
index ce6f5d9..c9d330d 100644
--- a/internal/service/task.go
+++ b/internal/service/task.go
@@ -1,7 +1,6 @@
 package service
 
 import (
-	"errors"
 	"fmt"
 	"net/http"
 	"strconv"
@@ -234,7 +233,7 @@ func (h *HTTPHandler) Run(taskModel models.Task, taskUniqueId int64) (result str
 	}
 	// 返回状态码非200，均为失败
 	if resp.StatusCode != http.StatusOK {
-		return resp.Body, errors.New(fmt.Sprintf("HTTP状态码非200-->%d", resp.StatusCode))
+		return resp.Body, fmt.Errorf("HTTP状态码非200-->%d", resp.StatusCode)
 	}
 
 	return resp.Body, err
diff --git a/makefile b/makefile
index 1dfbe6f..abe3ec1 100644
--- a/makefile
+++ b/makefile
@@ -63,6 +63,9 @@ statik:
 	go get github.com/rakyll/statik
 	go generate ./...
 
+.PHONY: lint
+	golangci-lint run
+
 .PHONY: clean
 clean:
 	rm bin/gocron