support auto get session from input fix #211

@@ -270,7 +270,7 @@ func (c *Controller) SaveToFile(fromfile, tofile string) error {
 
 func (c *Controller) StartSession() session.SessionStore {
 	if c.CruSession == nil {
-		c.CruSession = GlobalSessions.SessionStart(c.Ctx.ResponseWriter, c.Ctx.Request)
+		c.CruSession = c.Ctx.Input.CruSession
 	}
 	return c.CruSession
 }

@@ -306,6 +306,10 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 		context.Output = beecontext.NewOutput(rw)
 	}
 
+	if SessionOn {
+		context.Input.CruSession = GlobalSessions.SessionStart(w, r)
+	}
+
 	var runrouter *controllerInfo
 	var findrouter bool