/// <summary>
 /// 添加领域服务过滤器。
 /// </summary>
 /// <typeparam name="TService">领域服务类型。</typeparam>
 /// <typeparam name="TFilter">过滤器类型。</typeparam>
 /// <param name="domainProvider">领域服务提供器。</param>
 public static void AddServiceFilter <TService, TFilter>(this IDomainServiceProvider domainProvider)
     where TService : IDomainService
     where TFilter : class, IDomainServiceFilter, new()
 {
     domainProvider.AddServiceFilterSelector(t => typeof(TService).IsAssignableFrom(t) ? new TFilter() : null);
 }
 /// <summary>
 /// 添加全局领域服务过滤器。
 /// </summary>
 /// <typeparam name="TFilter">过滤器类型。</typeparam>
 /// <param name="domainProvider">领域服务提供器。</param>
 public static void AddGlobalFilter <TFilter>(this IDomainServiceProvider domainProvider)
     where TFilter : class, IDomainServiceFilter, new()
 {
     domainProvider.AddServiceFilterSelector(t => new TFilter());
 }