diff --git a/.example/database/gdb/mysql/config/gdb.go b/.example/database/gdb/mysql/config/gdb.go
new file mode 100644
index 000000000..6fb30486b
--- /dev/null
+++ b/.example/database/gdb/mysql/config/gdb.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+	"github.com/gogf/gf/database/gdb"
+	"sync"
+	"time"
+)
+
+var db gdb.DB
+
+func init() {
+	gdb.AddDefaultConfigNode(gdb.ConfigNode{
+		Host:             "127.0.0.1",
+		Port:             "3306",
+		User:             "root",
+		Pass:             "12345678",
+		Name:             "test",
+		Type:             "mysql",
+		Role:             "master",
+		Charset:          "utf8",
+		MaxOpenConnCount: 100,
+	})
+	db, _ = gdb.New()
+}
+
+func main() {
+	wg := sync.WaitGroup{}
+	for i := 0; i < 100000; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			time.Sleep(10 * time.Second)
+			db.Table("user").Where("id=1").All()
+		}()
+	}
+	wg.Wait()
+}
diff --git a/.example/database/gdb/mysql/gdb.go b/.example/database/gdb/mysql/gdb.go
deleted file mode 100644
index c72bb7249..000000000
--- a/.example/database/gdb/mysql/gdb.go
+++ /dev/null
@@ -1,533 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/gogf/gf/database/gdb"
-	"github.com/gogf/gf/frame/g"
-)
-
-// 本文件用于gf框架的mysql数据库操作示例，不作为单元测试使用
-
-var db gdb.DB
-
-// 初始化配置及创建数据库
-func init() {
-	gdb.AddDefaultConfigNode(gdb.ConfigNode{
-		Host:    "127.0.0.1",
-		Port:    "3306",
-		User:    "root",
-		Pass:    "12345678",
-		Name:    "test",
-		Type:    "mysql",
-		Role:    "master",
-		Charset: "utf8",
-	})
-	db, _ = gdb.New()
-
-	//gins.Config().SetPath("/home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/.example/frame")
-	//db = g.Database()
-
-	//gdb.SetConfig(gdb.ConfigNode {
-	//    Host : "127.0.0.1",
-	//    Port : 3306,
-	//    User : "root",
-	//    Pass : "123456",
-	//    Name : "test",
-	//    Type : "mysql",
-	//})
-	//db, _ = gdb.Instance()
-
-	//gdb.SetConfig(gdb.Config {
-	//    "default" : gdb.ConfigGroup {
-	//        gdb.ConfigNode {
-	//            Host     : "127.0.0.1",
-	//            Port     : "3306",
-	//            User     : "root",
-	//            Pass     : "123456",
-	//            Name     : "test",
-	//            Type     : "mysql",
-	//            Role     : "master",
-	//            Weight : 100,
-	//        },
-	//        gdb.ConfigNode {
-	//            Host     : "127.0.0.2",
-	//            Port     : "3306",
-	//            User     : "root",
-	//            Pass     : "123456",
-	//            Name     : "test",
-	//            Type     : "mysql",
-	//            Role     : "master",
-	//            Weight : 100,
-	//        },
-	//        gdb.ConfigNode {
-	//            Host     : "127.0.0.3",
-	//            Port     : "3306",
-	//            User     : "root",
-	//            Pass     : "123456",
-	//            Name     : "test",
-	//            Type     : "mysql",
-	//            Role     : "master",
-	//            Weight : 100,
-	//        },
-	//        gdb.ConfigNode {
-	//            Host     : "127.0.0.4",
-	//            Port     : "3306",
-	//            User     : "root",
-	//            Pass     : "123456",
-	//            Name     : "test",
-	//            Type     : "mysql",
-	//            Role     : "master",
-	//            Weight : 100,
-	//        },
-	//    },
-	//})
-	//db, _ = gdb.Instance()
-}
-
-// 创建测试数据库
-func create() {
-	fmt.Println("create:")
-	_, err := db.Exec("CREATE DATABASE IF NOT EXISTS test")
-	if err != nil {
-		fmt.Println(err)
-	}
-
-	s := `
-        CREATE TABLE IF NOT EXISTS user (
-            uid  INT(10) UNSIGNED AUTO_INCREMENT,
-            name VARCHAR(45),
-            PRIMARY KEY (uid)
-        )
-        ENGINE = InnoDB
-        DEFAULT CHARACTER SET = utf8
-    `
-	_, err = db.Exec(s)
-	if err != nil {
-		fmt.Println(err)
-	}
-
-	s = `
-        CREATE TABLE IF NOT EXISTS user_detail (
-            uid   INT(10) UNSIGNED AUTO_INCREMENT,
-            site  VARCHAR(255),
-            PRIMARY KEY (uid)
-        )
-        ENGINE = InnoDB
-        DEFAULT CHARACTER SET = utf8
-    `
-
-	_, err = db.Exec(s)
-	if err != nil {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 数据写入
-func insert() {
-	fmt.Println("insert:")
-	r, err := db.Insert("user", gdb.Map{
-		"name": "john",
-	})
-	if err == nil {
-		uid, err2 := r.LastInsertId()
-		if err2 == nil {
-			r, err = db.Insert("user_detail", gdb.Map{
-				"uid":  uid,
-				"site": "http://johng.cn",
-			})
-			if err == nil {
-				fmt.Printf("uid: %d\n", uid)
-			} else {
-				fmt.Println(err)
-			}
-		} else {
-			fmt.Println(err2)
-		}
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 基本sql查询
-func query() {
-	fmt.Println("query:")
-	list, err := db.GetAll("select * from user limit 2")
-	if err == nil {
-		fmt.Println(list)
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// replace into
-func replace() {
-	fmt.Println("replace:")
-	r, err := db.Save("user", gdb.Map{
-		"uid":  1,
-		"name": "john",
-	})
-	if err == nil {
-		fmt.Println(r.LastInsertId())
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 数据保存
-func save() {
-	fmt.Println("save:")
-	r, err := db.Save("user", gdb.Map{
-		"uid":  1,
-		"name": "john",
-	})
-	if err == nil {
-		fmt.Println(r.LastInsertId())
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 批量写入
-func batchInsert() {
-	fmt.Println("batchInsert:")
-	_, err := db.BatchInsert("user", gdb.List{
-		{"name": "john_1"},
-		{"name": "john_2"},
-		{"name": "john_3"},
-		{"name": "john_4"},
-	}, 10)
-	if err != nil {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 数据更新
-func update1() {
-	fmt.Println("update1:")
-	r, err := db.Update("user", gdb.Map{"name": "john1"}, "uid=?", 1)
-	if err == nil {
-		fmt.Println(r.LastInsertId())
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 数据更新
-func update2() {
-	fmt.Println("update2:")
-	r, err := db.Update("user", gdb.Map{"name": "john6"}, "uid=?", 1)
-	if err == nil {
-		fmt.Println(r.LastInsertId())
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 数据更新
-func update3() {
-	fmt.Println("update3:")
-	r, err := db.Update("user", "name=?", "uid=?", "john2", 1)
-	if err == nil {
-		fmt.Println(r.LastInsertId())
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式查询操作1
-func linkopSelect1() {
-	fmt.Println("linkopSelect1:")
-	r, err := db.Table("user u").LeftJoin("user_detail ud", "u.uid=ud.uid").Fields("u.*, ud.site").Where("u.uid > ?", 1).Limit(0, 2).Select()
-	if err == nil {
-		fmt.Println(r)
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式查询操作2
-func linkopSelect2() {
-	fmt.Println("linkopSelect2:")
-	r, err := db.Table("user u").LeftJoin("user_detail ud", "u.uid=ud.uid").Fields("u.*,ud.site").Where("u.uid=?", 1).One()
-	if err == nil {
-		fmt.Println(r)
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式查询操作3
-func linkopSelect3() {
-	fmt.Println("linkopSelect3:")
-	r, err := db.Table("user u").LeftJoin("user_detail ud", "u.uid=ud.uid").Fields("ud.site").Where("u.uid=?", 1).Value()
-	if err == nil {
-		fmt.Println(r.String())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式查询数量1
-func linkopCount1() {
-	fmt.Println("linkopCount1:")
-	r, err := db.Table("user u").Fields("uid").LeftJoin("user_detail ud", "u.uid=ud.uid").Where("u.uid=?", 1).Count()
-	if err == nil {
-		fmt.Println(r)
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 错误操作
-func linkopUpdate1() {
-	fmt.Println("linkopUpdate1:")
-	r, err := db.Table("henghe_setting").Update()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 通过Map指针方式传参方式
-func linkopUpdate2() {
-	fmt.Println("linkopUpdate2:")
-	r, err := db.Table("user").Data(gdb.Map{"name": "john2"}).Where("name=?", "john_1").Update()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 通过字符串方式传参
-func linkopUpdate3() {
-	fmt.Println("linkopUpdate3:")
-	r, err := db.Table("user").Data("name='john3'").Where("name=?", "john2").Update()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// Where条件使用Map
-func linkopUpdate4() {
-	fmt.Println("linkopUpdate4:")
-	r, err := db.Table("user").Data(gdb.Map{"name": "john11111"}).Where(g.Map{"uid": 1}).Update()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式批量写入
-func linkopBatchInsert1() {
-	fmt.Println("linkopBatchInsert1:")
-	r, err := db.Table("user").Data(gdb.List{
-		{"name": "john_1"},
-		{"name": "john_2"},
-		{"name": "john_3"},
-		{"name": "john_4"},
-	}).Insert()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式批量写入，指定每批次写入的条数
-func linkopBatchInsert2() {
-	fmt.Println("linkopBatchInsert2:")
-	r, err := db.Table("user").Data(gdb.List{
-		{"name": "john_1"},
-		{"name": "john_2"},
-		{"name": "john_3"},
-		{"name": "john_4"},
-	}).Batch(2).Insert()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 链式批量保存
-func linkopBatchSave() {
-	fmt.Println("linkopBatchSave:")
-	r, err := db.Table("user").Data(gdb.List{
-		{"uid": 1, "name": "john_1"},
-		{"uid": 2, "name": "john_2"},
-		{"uid": 3, "name": "john_3"},
-		{"uid": 4, "name": "john_4"},
-	}).Save()
-	if err == nil {
-		fmt.Println(r.RowsAffected())
-	} else {
-		fmt.Println(err)
-	}
-	fmt.Println()
-}
-
-// 事务操作示例1
-func transaction1() {
-	fmt.Println("transaction1:")
-	if tx, err := db.Begin(); err == nil {
-		r, err := tx.Save("user", gdb.Map{
-			"uid":  1,
-			"name": "john",
-		})
-		tx.Rollback()
-		fmt.Println(r, err)
-	}
-	fmt.Println()
-}
-
-// 事务操作示例2
-func transaction2() {
-	fmt.Println("transaction2:")
-	if tx, err := db.Begin(); err == nil {
-		r, err := tx.Table("user").Data(gdb.Map{"uid": 1, "name": "john_1"}).Save()
-		tx.Commit()
-		fmt.Println(r, err)
-	}
-	fmt.Println()
-}
-
-// 主从io复用测试，在mysql中使用 show full processlist 查看链接信息
-func keepPing() {
-	fmt.Println("keepPing:")
-	for {
-		fmt.Println("ping...")
-		err := db.PingMaster()
-		if err != nil {
-			fmt.Println(err)
-			return
-		}
-		err = db.PingSlave()
-		if err != nil {
-			fmt.Println(err)
-			return
-		}
-		time.Sleep(1 * time.Second)
-	}
-}
-
-// like语句查询
-func likeQuery() {
-	fmt.Println("likeQuery:")
-	if r, err := db.Table("user").Where("name like ?", "%john%").Select(); err == nil {
-		fmt.Println(r)
-	} else {
-		fmt.Println(err)
-	}
-}
-
-// mapToStruct
-func mapToStruct() {
-	type User struct {
-		Uid  int
-		Name string
-	}
-	fmt.Println("mapToStruct:")
-	if r, err := db.Table("user").Where("uid=?", 1).One(); err == nil {
-		u := User{}
-		if err := r.ToStruct(&u); err == nil {
-			fmt.Println(r)
-			fmt.Println(u)
-		} else {
-			fmt.Println(err)
-		}
-	} else {
-		fmt.Println(err)
-	}
-}
-
-// getQueriedSqls
-func getQueriedSqls() {
-	for k, v := range db.GetQueriedSqls() {
-		fmt.Println(k, ":")
-		fmt.Println("Sql  :", v.Sql)
-		fmt.Println("Args :", v.Args)
-		fmt.Println("Error:", v.Error)
-		fmt.Println("Func :", v.Func)
-	}
-}
-
-func main() {
-	//data := g.Map{
-	//    "nickname" : "john",
-	//}
-	//db.SetDebug(true)
-	//r, err := db.Table("user").Where("id=1").Data(data).Update()
-	//fmt.Println(err)
-	//fmt.Println(r.RowsAffected())
-
-	//data2 := g.Map{
-	//   "adsys1" : "ss",
-	//}
-	//db.SetDebug(true)
-	//r, err := db.Table("cd_adsys").Where("adsys0=1").Data(data2).Update()
-	//fmt.Println(err)
-	//fmt.Println(r.RowsAffected())
-	//return
-	//db.SetDebug(true)
-	//r, err := db.Table("test").Where("id=1").One()
-	//fmt.Println(r["datetime"])
-	//fmt.Println(r["datetime"].Time().Date())
-	//fmt.Println(err)
-	//create()
-	//create()
-	//insert()
-	//query()
-	//replace()
-	//save()
-	//batchInsert()
-	//update1()
-	//update2()
-	//update3()
-	linkopSelect1()
-	//linkopSelect2()
-	//linkopSelect3()
-	//linkopCount1()
-	//linkopUpdate1()
-	//linkopUpdate2()
-	//linkopUpdate3()
-	//linkopUpdate4()
-	//
-	//transaction1()
-	//transaction2()
-	//
-	//keepPing()
-	//likeQuery()
-	//mapToStruct()
-	//getQueriedSqls()
-}
diff --git a/.example/net/ghttp/server/session/session.go b/.example/net/ghttp/server/session/session.go
index 111c73eec..7f1e0691a 100644
--- a/.example/net/ghttp/server/session/session.go
+++ b/.example/net/ghttp/server/session/session.go
@@ -4,12 +4,10 @@ import (
 	"github.com/gogf/gf/frame/g"
 	"github.com/gogf/gf/net/ghttp"
 	"github.com/gogf/gf/os/gtime"
-	"time"
 )
 
 func main() {
 	s := g.Server()
-	s.SetSessionMaxAge(61 * time.Second)
 	s.BindHandler("/set", func(r *ghttp.Request) {
 		r.Session.Set("time", gtime.Second())
 		r.Response.Write("ok")
diff --git a/.example/net/ghttp/server/session/session_file.go b/.example/net/ghttp/server/session/session_file.go
deleted file mode 100644
index 6725ecfc3..000000000
--- a/.example/net/ghttp/server/session/session_file.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package main
-
-import (
-	"github.com/gogf/gf/frame/g"
-	"github.com/gogf/gf/net/ghttp"
-	"github.com/gogf/gf/os/gtime"
-	"time"
-)
-
-// SessionSet sets a test session key into the session storage.
-func SessionSet(r *ghttp.Request) {
-	r.Session.Set("time", gtime.Second())
-	r.Response.WriteJson("ok")
-}
-
-// SessionGet shows all sessions stored.
-func SessionGet(r *ghttp.Request) {
-	r.Response.WriteJson(r.Session.Map())
-}
-
-func main() {
-	s := g.Server()
-	s.SetConfigWithMap(g.Map{
-		"SessionMaxAge": 3 * time.Second,
-	})
-	s.BindHandler("/set", SessionSet)
-	s.BindHandler("/get", SessionGet)
-	s.SetPort(8199)
-	s.Run()
-}
diff --git a/.example/net/ghttp/server/session/session_map.go b/.example/net/ghttp/server/session/session_map.go
deleted file mode 100644
index 835c2c815..000000000
--- a/.example/net/ghttp/server/session/session_map.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/gogf/gf/frame/g"
-	"github.com/gogf/gf/net/ghttp"
-)
-
-func main() {
-	s := g.Server()
-	s.SetSessionMaxAge(60)
-	s.BindHandler("/set", func(r *ghttp.Request) {
-		r.Session.Set("captcha", map[string]string{
-			"key": "value",
-		})
-		r.Response.Write("ok")
-	})
-	s.BindHandler("/get", func(r *ghttp.Request) {
-		fmt.Println(r.Session.Get("captcha"))
-		r.Response.Write(r.Session.Get("captcha"))
-	})
-	s.SetPort(8199)
-	s.Run()
-}
diff --git a/.example/net/ghttp/server/session/session_redis.go b/.example/net/ghttp/server/session/session_redis.go
deleted file mode 100644
index 5c32c7466..000000000
--- a/.example/net/ghttp/server/session/session_redis.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package main
-
-import (
-	"github.com/gogf/gf/frame/g"
-	"github.com/gogf/gf/net/ghttp"
-	"github.com/gogf/gf/os/gsession"
-	"github.com/gogf/gf/os/gtime"
-	"time"
-)
-
-// SessionSet sets a test session key into the session storage.
-func SessionSet(r *ghttp.Request) {
-	r.Session.Set("time", gtime.Second())
-	r.Response.WriteJson("ok")
-}
-
-// SessionGet shows all sessions stored.
-func SessionGet(r *ghttp.Request) {
-	r.Response.WriteJson(r.Session.Map())
-}
-
-func main() {
-	s := g.Server()
-	s.SetConfigWithMap(g.Map{
-		"SessionMaxAge":  3 * time.Second,
-		"SessionStorage": gsession.NewStorageRedis(g.Redis()),
-	})
-	s.BindHandler("/set", SessionSet)
-	s.BindHandler("/get", SessionGet)
-	s.SetPort(8199)
-	s.Run()
-}
diff --git a/net/ghttp/ghttp_server.go b/net/ghttp/ghttp_server.go
index 182d0c5a2..ea1a2814d 100644
--- a/net/ghttp/ghttp_server.go
+++ b/net/ghttp/ghttp_server.go
@@ -255,10 +255,19 @@ func (s *Server) Start() error {
 
 	// Default session storage.
 	if s.config.SessionStorage == nil {
-		s.config.SessionStorage = gsession.NewStorageFile()
+		path := gfile.Join(s.config.SessionPath, s.name)
+		if !gfile.Exists(path) {
+			if err := gfile.Mkdir(path); err != nil {
+				glog.Fatalf("mkdir failed for '%s':", path, err)
+			}
+		}
+		s.config.SessionStorage = gsession.NewStorageFile(path)
 	}
 	// Initialize session manager when start running.
-	s.sessionManager = gsession.New(s.config.SessionMaxAge, s.config.SessionStorage)
+	s.sessionManager = gsession.New(
+		s.config.SessionMaxAge,
+		s.config.SessionStorage,
+	)
 
 	// PProf feature.
 	if s.config.PProfEnabled {
diff --git a/net/ghttp/ghttp_server_config.go b/net/ghttp/ghttp_server_config.go
index 80d37e737..266eb1614 100644
--- a/net/ghttp/ghttp_server_config.go
+++ b/net/ghttp/ghttp_server_config.go
@@ -62,6 +62,7 @@ type ServerConfig struct {
 	CookieDomain      string            // Cookie: 有效Domain(注意同时也会影响SessionID)
 	SessionMaxAge     time.Duration     // Session: 有效期
 	SessionIdName     string            // Session: SessionId.
+	SessionPath       string            // Session: Session Storage path for storing session files.
 	SessionStorage    gsession.Storage  // Session: Session Storage implementer.
 	DenyIps           []string          // Security: 不允许访问的ip列表，支持ip前缀过滤，如: 10 将不允许10开头的ip访问
 	AllowIps          []string          // Security: 仅允许访问的ip列表，支持ip前缀过滤，如: 10 将仅允许10开头的ip访问
@@ -104,6 +105,7 @@ var defaultServerConfig = ServerConfig{
 	CookieDomain:      "",
 	SessionMaxAge:     time.Hour * 24,
 	SessionIdName:     "gfsessionid",
+	SessionPath:       gsession.DefaultStorageFilePath,
 	LogStdout:         true,
 	ErrorStack:        true,
 	ErrorLogEnabled:   true,