add package gkvdb; add kvdb storage feature for ghttp.Server

.example/database/gkvdb/badger/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"log"
+
+	"github.com/dgraph-io/badger"
+)
+
+func main() {
+	// Open the Badger database located in the /tmp/badger directory.
+	// It will be created if it doesn't exist.
+	db, err := badger.Open(badger.DefaultOptions("/tmp/badger"))
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+	// Your code here…
+}

.example/database/gkvdb/main1.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/gogf/gf/database/gkvdb"
+)
+
+func main() {
+	key := []byte("key")
+	//value := []byte("value")
+
+	db := gkvdb.Instance()
+	db.SetPath("/tmp/gkvdb/test")
+	//db.Set(key, value)
+	fmt.Println(db.Get(key))
+}

.example/net/ghttp/server/session/session.go

@@ -8,7 +8,7 @@ import (
 
 func main() {
 	s := g.Server()
-	s.SetSessionMaxAge(72000000)
+	s.SetSessionMaxAge(60)
 	s.SetSessionIdName("gpadminssid")
 	s.BindHandler("/set", func(r *ghttp.Request) {
 		r.Session.Set("time", gtime.Second())