会话在Windows Azure服务器上到期

Question

I have stored some data in Session. When i try to access this data on different view files (*.cshtml), it works fine on localhost. But when I deploy it on "windowsazure.com", it results:

Object reference not set to an instance of an object. Line 14: string imageurl = Session["imageurl"].ToString();

Answer 1

Fahad

This anwser is based on the assupmtion that you have moore than one instance of your web role running.

windows Azure uses load balencing based on a round robbin princeple. It also doenot support sticky sessions. The result is that the first en second requrest to your web site are, in general, processed on 2 differnt servers. This explains the empty state. You can configure your deployment to use shared memory and use the Azure cashing pattern to solve this problem.

This patren is expliand in de windows Azure Training Kit.

Michiel