/// <summary>
/// 分析返回的DIV快内的歌曲信息
/// </summary>
/// <param name="tr">歌曲tr块的HTML信息</param>
/// <returns>TR块中歌曲信息列表</returns>
private List<MusicInfo> MusicInfoBuild(string tr)
{
List<MusicInfo> musicInfoList = new List<MusicInfo>();
// 从TR块中获取音乐基本信息
tr = tr.Replace("\n", string.Empty);
tr = tr.Replace(" ", string.Empty);
GroupCollection infoGroup = RegexHelper.GetRegexGroup(tr, BAIDU_MUSIC_INFO_PATTERN, RegexOptions.IgnoreCase);
if (infoGroup == null)
{
return musicInfoList;
}
// 设置音乐基本信息
MusicInfo music = new MusicInfo();
music.MusicSource = "百度音乐";
music.MusicName = EncodeConverter.HtmlDecode(infoGroup["MusicName"].Value);
// 这里单独从TR块中获取专辑信息，是出于性能考虑，如果在infoGroup中搜索专辑名信息，因为正则表达式过长
// 导致每次搜索要940ms左右，而分离后，两次搜索总时间不到5ms
music.Album = EncodeConverter.HtmlDecode(RegexHelper.GetRegexGroupItem(tr, BAIDU_MUSIC_INFO_PATTERN_2, "Album", RegexOptions.IgnoreCase));
music.SingerName = infoGroup["Singer1"].Value + " " + infoGroup["Singer2"].Value + " " + infoGroup["Singer3"].Value;
// 从歌名的链接地址中获得音乐地址
string detailLink = infoGroup["LinkUrl"].Value;
if (!string.IsNullOrEmpty(detailLink))
{
List<string> musicUrlList = MusicOperator.GetMusicUrlList(detailLink); //目前一些文件名后面没有后缀名
if (musicUrlList == null || musicUrlList.Count == 0)
{
return null;
}
// 过滤掉重复地址
var urlList = musicUrlList;
// 每个不同的地址，组成一个音乐信息
foreach (string url in urlList)
{
if (MusicOperator.urlIsValid(url))
{
MusicInfo tmpMusic = music.Clone() as MusicInfo;
tmpMusic.MusicUrl = url;
tmpMusic.MusicFormat = MusicOperator.GetMusicFormat(url);
musicInfoList.Add(tmpMusic);
}
}
}
else
{
return musicInfoList;
}
return musicInfoList;
}
/// <summary>
/// 分析返回的DIV快内的歌曲信息
/// </summary>
/// <param name="tr">歌曲TR块的HTML信息</param>
/// <returns>TR块中歌曲信息列表</returns>
private List<MusicInfo> MusicInfoBuild(string tr)
{
List<MusicInfo> musicInfoList = new List<MusicInfo>();
// 获取音乐地址
List<string> musicAddressList = MusicOperator.GetMusicUrlList(tr);
if (musicAddressList != null && musicAddressList.Count > 0)
{
// 过滤掉重复地址，如果过滤后为空，则返回null
var urlList = musicAddressList;
if (urlList.Count() == 0)
{
return null;
}
// 如果获得地址成功,获得歌曲信息
GroupCollection group = RegexHelper.GetRegexGroup(tr, SOSO_MUSIC_INFO_PATTEN, RegexOptions.IgnoreCase | RegexOptions.Singleline);
if (group != null)
{
// 新建歌曲信息列表，设置歌曲信息
MusicInfo musicInfo = new MusicInfo();
musicInfo.MusicName = EncodeConverter.HtmlDecode(group["MusicName"].Value);
musicInfo.SingerName = EncodeConverter.HtmlDecode(group["SingerName"].Value);
musicInfo.Album = EncodeConverter.HtmlDecode(group["Album"].Value);
musicInfo.MusicSource = "搜搜音乐";
// 设置歌曲地址和格式
foreach (string address in urlList)
{
MusicInfo tmpMusic = musicInfo.Clone() as MusicInfo;
// 检查地址是否合法
if (MusicOperator.urlIsValid(address))
{
tmpMusic.MusicUrl = address;
tmpMusic.MusicFormat = MusicOperator.GetMusicFormat(tmpMusic.MusicUrl);
musicInfoList.Add(tmpMusic);
}
}
}
return musicInfoList;
}
else
{
return musicInfoList;
}
}