asp.net MVC Learning 5, landing page change to SSO authentication

Specific implementation:

1, add SingleSingOn.cs (this CS file can be downloaded online, and then ssohost change to its own address) 2,controller Add Login method: Singlesingon SSO = new Singlesingon ()//New A SSO object public ActionResult Login () {String identity = Sso. Signin ();  If the login succeeds, return the work number if (identity!= null) {returns redirecttoaction ("Index"); Login successfully jump to index page} else {return redirecttoaction ("login");//Login failed, go back to login Record Page}}