要在ashx中使用session需要实现IRequiresSessionState或者IReadOnlySessionState方法
public class LoginOutHandler : IHttpHandler, IReadOnlySessionState,IRequiresSessionState {}
要在ashx中使用session需要实现IRequiresSessionState或者IReadOnlySessionState方法
public class LoginOutHandler : IHttpHandler, IReadOnlySessionState,IRequiresSessionState {}