diff --git a/bootstrap/init.go b/bootstrap/init.go
index 2aea14d..0f93399 100644
--- a/bootstrap/init.go
+++ b/bootstrap/init.go
@@ -98,16 +98,7 @@ func Init(path string, statics fs.FS) {
 	}
 
 	for _, dependency := range dependencies {
-		switch dependency.mode {
-		case "master":
-			if conf.SystemConfig.Mode == "master" {
-				dependency.factory()
-			}
-		case "slave":
-			if conf.SystemConfig.Mode == "slave" {
-				dependency.factory()
-			}
-		default:
+		if dependency.mode == conf.SystemConfig.Mode || dependency.mode == "both" {
 			dependency.factory()
 		}
 	}
diff --git a/go.mod b/go.mod
index 6cb1dc3..394b77a 100644
--- a/go.mod
+++ b/go.mod
@@ -38,7 +38,7 @@ require (
 	github.com/tencentyun/cos-go-sdk-v5 v0.0.0-20200120023323-87ff3bc489ac
 	github.com/upyun/go-sdk v2.1.0+incompatible
 	golang.org/x/image v0.0.0-20211028202545-6944b10bf410
-	gopkg.in/go-playground/validator.v9 v9.29.1
+	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba
 )
 
 require (
@@ -99,7 +99,6 @@ require (
 	github.com/mattn/go-colorable v0.1.4 // indirect
 	github.com/mattn/go-isatty v0.0.12 // indirect
 	github.com/mattn/go-runewidth v0.0.12 // indirect
-	github.com/mattn/go-sqlite3 v1.14.7 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mitchellh/mapstructure v1.1.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
@@ -149,7 +148,6 @@ require (
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
 	golang.org/x/sys v0.0.0-20211020174200-9d6173849985 // indirect
 	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
 	golang.org/x/tools v0.1.0 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
diff --git a/go.sum b/go.sum
index a29f4ce..23fd3af 100644
--- a/go.sum
+++ b/go.sum
@@ -1393,10 +1393,8 @@ gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
-gopkg.in/go-playground/assert.v1 v1.2.1 h1:xoYuJVE7KT85PYWrN730RguIQO0ePzVRfFMXadIrXTM=
 gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
 gopkg.in/go-playground/validator.v8 v8.18.2/go.mod h1:RX2a/7Ha8BgOhfk7j780h4/u/RRjR0eouCJSH80/M2Y=
-gopkg.in/go-playground/validator.v9 v9.29.1 h1:SvGtYmN60a5CVKTOzMSyfzWDeZRxRuGvRQyEAKbw1xc=
 gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
diff --git a/main.go b/main.go
index 69e628b..b691f6e 100644
--- a/main.go
+++ b/main.go
@@ -1,14 +1,21 @@
 package main
 
 import (
+	"context"
 	_ "embed"
 	"flag"
 	"io"
 	"io/fs"
+	"net"
+	"net/http"
 	"os"
+	"os/signal"
 	"strings"
+	"syscall"
+	"time"
 
 	"github.com/cloudreve/Cloudreve/v3/bootstrap"
+	model "github.com/cloudreve/Cloudreve/v3/models"
 	"github.com/cloudreve/Cloudreve/v3/pkg/conf"
 	"github.com/cloudreve/Cloudreve/v3/pkg/util"
 	"github.com/cloudreve/Cloudreve/v3/routers"
@@ -41,6 +48,9 @@ func init() {
 }
 
 func main() {
+	// 关闭数据库连接
+	defer model.DB.Close()
+
 	if isEject {
 		// 开始导出内置静态资源文件
 		bootstrap.Eject(staticFS)
@@ -54,16 +64,35 @@ func main() {
 	}
 
 	api := routers.InitRouter()
+	server := &http.Server{Handler: api}
+
+	// 收到信号后关闭服务器
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT)
+	go func() {
+		sig := <-sigChan
+		util.Log().Info("收到信号 %s，开始关闭 server", sig)
+		ctx := context.Background()
+		if conf.SystemConfig.GracePeriod != 0 {
+			var cancel context.CancelFunc
+			ctx, cancel = context.WithTimeout(ctx, time.Duration(conf.SystemConfig.GracePeriod)*time.Second)
+			defer cancel()
+		}
+
+		err := server.Shutdown(ctx)
+		if err != nil {
+			util.Log().Error("关闭 server 错误, %s", err)
+		}
+	}()
 
 	// 如果启用了SSL
 	if conf.SSLConfig.CertPath != "" {
-		go func() {
-			util.Log().Info("开始监听 %s", conf.SSLConfig.Listen)
-			if err := api.RunTLS(conf.SSLConfig.Listen,
-				conf.SSLConfig.CertPath, conf.SSLConfig.KeyPath); err != nil {
-				util.Log().Error("无法监听[%s]，%s", conf.SSLConfig.Listen, err)
-			}
-		}()
+		util.Log().Info("开始监听 %s", conf.SSLConfig.Listen)
+		server.Addr = conf.SSLConfig.Listen
+		if err := server.ListenAndServeTLS(conf.SSLConfig.CertPath, conf.SSLConfig.KeyPath); err != nil {
+			util.Log().Error("无法监听[%s]，%s", conf.SSLConfig.Listen, err)
+			return
+		}
 	}
 
 	// 如果启用了Unix
@@ -78,14 +107,26 @@ func main() {
 
 		api.TrustedPlatform = conf.UnixConfig.ProxyHeader
 		util.Log().Info("开始监听 %s", conf.UnixConfig.Listen)
-		if err := api.RunUnix(conf.UnixConfig.Listen); err != nil {
+		if err := RunUnix(server); err != nil {
 			util.Log().Error("无法监听[%s]，%s", conf.UnixConfig.Listen, err)
 		}
 		return
 	}
 
 	util.Log().Info("开始监听 %s", conf.SystemConfig.Listen)
-	if err := api.Run(conf.SystemConfig.Listen); err != nil {
+	server.Addr = conf.SystemConfig.Listen
+	if err := server.ListenAndServe(); err != nil {
 		util.Log().Error("无法监听[%s]，%s", conf.SystemConfig.Listen, err)
 	}
 }
+
+func RunUnix(server *http.Server) error {
+	listener, err := net.Listen("unix", conf.UnixConfig.Listen)
+	if err != nil {
+		return err
+	}
+	defer listener.Close()
+	defer os.Remove(conf.UnixConfig.Listen)
+
+	return server.Serve(listener)
+}
diff --git a/pkg/conf/conf.go b/pkg/conf/conf.go
index a9f7d06..5770e71 100644
--- a/pkg/conf/conf.go
+++ b/pkg/conf/conf.go
@@ -3,7 +3,7 @@ package conf
 import (
 	"github.com/cloudreve/Cloudreve/v3/pkg/util"
 	"github.com/go-ini/ini"
-	"gopkg.in/go-playground/validator.v9"
+	"github.com/go-playground/validator/v10"
 )
 
 // database 数据库
@@ -26,6 +26,7 @@ type system struct {
 	Debug         bool
 	SessionSecret string
 	HashIDSalt    string
+	GracePeriod   int `validate:"gte=0"`
 }
 
 type ssl struct {