diff --git a/app/db/Mgo.go b/app/db/Mgo.go
index ee6ea03..958d345 100644
--- a/app/db/Mgo.go
+++ b/app/db/Mgo.go
@@ -355,3 +355,20 @@ func Err(err error) bool {
 	}
 	return true
 }
+
+// 检查mognodb是否lost connection
+// 每个请求之前都要检查!!
+func CheckMongoSessionLost() {
+	// fmt.Println("检查CheckMongoSessionLostErr")
+    err := Session.Ping()
+    if err != nil {
+        Log("Lost connection to db!")
+        Session.Refresh()
+        err = Session.Ping()
+        if err == nil {
+            Log("Reconnect to db successful.")
+        } else {
+        	Log("重连失败!!!! 警告")
+        }
+    }
+}
diff --git a/app/lea/route/Route.go b/app/lea/route/Route.go
index 595a529..b927d6f 100644
--- a/app/lea/route/Route.go
+++ b/app/lea/route/Route.go
@@ -2,7 +2,7 @@ package route
 
 import (
 	"github.com/revel/revel"
-//	"github.com/leanote/leanote/app/service"
+	"github.com/leanote/leanote/app/db"
 //	. "github.com/leanote/leanote/app/lea"
 	"net/url"
 	"strings"
@@ -42,6 +42,10 @@ func RouterFilter(c *revel.Controller, fc []revel.Filter) {
 	}
 	*/
 	if route.ControllerName != "Static" {
+
+		// 检查mongodb 是否lost
+		db.CheckMongoSessionLost()
+	
 		// api设置
 		// leanote.com/api/user/get => ApiUser::Get
 		//*       /api/login               ApiAuth.Login,  这里的设置, 其实已经转成了ApiAuth了