diff --git a/.example/net/ghttp/server/session/session.go b/.example/net/ghttp/server/session/session.go
index 24dfddc8b..81abd607d 100644
--- a/.example/net/ghttp/server/session/session.go
+++ b/.example/net/ghttp/server/session/session.go
@@ -16,6 +16,9 @@ func main() {
 	s.BindHandler("/get", func(r *ghttp.Request) {
 		r.Response.WriteJson(r.Session.Map())
 	})
+	s.BindHandler("/clear", func(r *ghttp.Request) {
+		r.Session.Clear()
+	})
 	s.SetPort(8199)
 	s.Run()
 }
diff --git a/go.sum b/go.sum
index 97b25b58c..90f5343ea 100644
--- a/go.sum
+++ b/go.sum
@@ -10,6 +10,7 @@ github.com/gf-third/mysql v1.4.2 h1:f1M5CNFUG3WkE07UOomtu4o0n/KJKeuUUf5Nc9ZFXs4=
 github.com/gf-third/mysql v1.4.2/go.mod h1:+dd90V663ppI2fV5uQ6+rHk0u8KCyU6FkG8Um8Cx3ms=
 github.com/gofrs/flock v0.7.1 h1:DP+LD/t0njgoPBvT5MJLeliUIVQR03hiKR6vezdwHlc=
 github.com/gofrs/flock v0.7.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
+github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/gomodule/redigo v2.0.0+incompatible h1:K/R+8tc58AaqLkqG2Ol3Qk+DR/TlNuhuh457pBFPtt0=
 github.com/gomodule/redigo v2.0.0+incompatible/go.mod h1:B4C85qUVwatsJoIUNIfCRsp7qO0iAmpGFZ4EELWSbC4=
@@ -27,6 +28,7 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190603091049-60506f45cf65 h1:+rhAzEzT3f4JtomfC371qB+0Ola2caSKcY69NUBZrRQ=
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
diff --git a/net/ghttp/ghttp_server_handler.go b/net/ghttp/ghttp_server_handler.go
index 8fd6f829a..08fc7756e 100644
--- a/net/ghttp/ghttp_server_handler.go
+++ b/net/ghttp/ghttp_server_handler.go
@@ -141,6 +141,7 @@ func (s *Server) handleRequest(w http.ResponseWriter, r *http.Request) {
 	}
 	// 设置Session Id到Cookie中
 	if request.Session.Id() != "" && request.GetSessionId() != request.Session.Id() {
+		request.Response.Header().Set(s.GetSessionIdName(), request.Session.Id())
 		request.Cookie.SetSessionId(request.Session.Id())
 	}
 	// 输出Cookie
diff --git a/net/ghttp/ghttp_unit_cookie_test.go b/net/ghttp/ghttp_unit_cookie_test.go
index f86660e66..af3ffaebe 100644
--- a/net/ghttp/ghttp_unit_cookie_test.go
+++ b/net/ghttp/ghttp_unit_cookie_test.go
@@ -4,7 +4,6 @@
 // If a copy of the MIT was not distributed with this file,
 // You can obtain one at https://github.com/gogf/gf.
 
-// COOKIE测试
 package ghttp_test
 
 import (
diff --git a/os/gsession/gsession_session.go b/os/gsession/gsession_session.go
index 5a753ce7f..7dcb458f0 100644
--- a/os/gsession/gsession_session.go
+++ b/os/gsession/gsession_session.go
@@ -129,7 +129,7 @@ func (s *Session) Clear() {
 // UpdateTTL updates the ttl of the session.
 // If this session is dirty, it also exports it to storage.
 func (s *Session) UpdateTTL() {
-	if len(s.id) > 0 && s.data != nil && s.data.Size() > 0 {
+	if len(s.id) > 0 && s.data != nil {
 		if s.manager.storage != nil {
 			if s.dirty.Cas(true, false) {
 				s.data.RLockFunc(func(m map[string]interface{}) {
diff --git a/os/gsession/gsession_storage_file.go b/os/gsession/gsession_storage_file.go
index c65b228d3..7e37ad740 100644
--- a/os/gsession/gsession_storage_file.go
+++ b/os/gsession/gsession_storage_file.go
@@ -50,7 +50,9 @@ func NewStorageFile(ttl time.Duration, path ...string) *StorageFile {
 	if len(path) > 0 && path[0] != "" {
 		storagePath, _ = gfile.Search(path[0])
 		if storagePath == "" {
-			glog.Panicf("'%s' does not exist", path[0])
+			if err := gfile.Mkdir(storagePath); err != nil {
+				glog.Panicf("mkdir '%s' failed: %v", path[0], err)
+			}
 		}
 		if !gfile.IsWritable(storagePath) {
 			glog.Panicf("'%s' is not writable", path[0])