/// <summary> /// 获取热门新闻列表。 /// </summary> /// <param name="itemCount">条数。</param> /// <returns>新闻列表。</returns> /// <exception cref="ArgumentOutOfRangeException">条数错误。</exception> public static async Task <IEnumerable <News> > HotAsync(int itemCount) { if (itemCount < 1) { throw new ArgumentOutOfRangeException(nameof(itemCount)); } var url = string.Format(CultureInfo.InvariantCulture, HotUrlTemplate, itemCount); url = url.WithCache(); var uri = new Uri(url, UriKind.Absolute); var request = WebRequest.Create(uri); using (var response = await request.GetResponseAsync()) { var document = XDocument.Load(response.GetResponseStream()); return(NewsHelper.Deserialize(document)); } }
/// <summary> /// 分页获取推荐新闻列表。 /// </summary> /// <param name="pageIndex">第几页,从 1 开始。</param> /// <param name="pageSize">每页条数。</param> /// <returns>新闻列表。</returns> /// <exception cref="ArgumentOutOfRangeException">新闻页数错误。</exception> /// <exception cref="ArgumentOutOfRangeException">新闻条数错误。</exception> public static async Task <IEnumerable <News> > RecommendAsync(int pageIndex, int pageSize) { if (pageIndex < 1) { throw new ArgumentOutOfRangeException(nameof(pageIndex)); } if (pageSize < 1 || pageSize > 100) { throw new ArgumentOutOfRangeException(nameof(pageSize)); } var url = string.Format(CultureInfo.InvariantCulture, RecommendUrlTemplate, pageIndex, pageSize); url = url.WithCache(); var uri = new Uri(url, UriKind.Absolute); var request = WebRequest.Create(uri); using (var response = await request.GetResponseAsync()) { var document = XDocument.Load(response.GetResponseStream()); return(NewsHelper.Deserialize(document)); } }