我通过从SignInManager继承并添加新属性成功实现了这一点:

I succeeded to achieve this by inheriting from SignInManager, adding a new property:

/// <summary>
///     Defines how long a user session lasts if it is non persistent. A null value means until the browser is closed (default)
/// </summary>
public virtual TimeSpan? NonPersistentSessionDuration { get; set; }

并覆盖方法:

/// <summary>
/// Creates a user identity and then signs the identity using the AuthenticationManager
/// </summary>
/// <param name="user"></param>
/// <param name="isPersistent"></param>
/// <param name="rememberBrowser"></param>
/// <returns></returns>
public virtual async Task SignInAsync(TUser user, bool isPersistent, bool rememberBrowser)
{
    var userIdentity = await CreateUserIdentityAsync(user).WithCurrentCulture();
    // Clear any partial cookies from external or two factor partial sign ins
    AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie, DefaultAuthenticationTypes.TwoFactorCookie);

    var properties = new AuthenticationProperties {IsPersistent = isPersistent};
    if (!isPersistent && this.NonPersistentSessionDuration != null)
        properties.ExpiresUtc = DateTimeOffset.UtcNow.Add(this.NonPersistentSessionDuration.Value);
    if (rememberBrowser)
    {
        var rememberBrowserIdentity = AuthenticationManager.CreateTwoFactorRememberBrowserIdentity(ConvertIdToString(user.Id));
        AuthenticationManager.SignIn(properties, userIdentity, rememberBrowserIdentity);
    }
    else
    {
        AuthenticationManager.SignIn(properties, userIdentity);
    }
}

此更改是将AuthenticationProperties对象的ExpiresUtc属性设置为非持久登录.

The change is setting the ExpiresUtc property of the AuthenticationProperties object for non-persistent sign in.

当然，在SignInManager配置中，您必须将新的NonPersistentSessionDuration属性设置为某个值，该值将是非持久会话的会话长度.

Of course in the SignInManager configuration you have to set the new NonPersistentSessionDuration property to some value which will be the session length for non-persistent sessions.