asp.net将数据从视图发送到控制器并使用该数据创建会话变量

When I log in to system, I have received data through http ajax request, then I need to send data to controller which is sent by response. Then at the controller I need create session variables. But I have no idea how can I send data to controller and create sessions, Because I'm new for asp.net mvcWhen I log in to system, I have received data t