/// <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));
}
}