ChannelBas类using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml; namespace TVXmlRead { public abstract class ChannelBase { #region 属性 /// <summary> /// 频道名称 /// </summary> private string channelName; public string ChannelName { get { return channelName; } set { channelName = value; } } /// <summary> /// 频道路径 /// </summary> private string path; public string Path { get { return path; } set { path = value; } } /// <summary> /// 节目列表 /// </summary> private List<TvProgram> programList; public List< TvProgram> ProgramList { get { return programList; } set { this.programList = value; } } #endregion public abstract void Fetch(); } } ChannelManager类

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml; using System.IO; using System.Windows.Forms; namespace TVXmlRead { public class ChannelManager { /// <summary> /// 频道文件路径 /// </summary> private string channelPath ="files/FullChannels.xml"; /// <summary> /// 全部频道 /// </summary> private Dictionary<string, ChannelBase> fullChannel=new Dictionary<string,ChannelBase>(); public Dictionary<string, ChannelBase> FullChannel { get { return fullChannel; } } //持久化信息 private SavingInfo seria = new SavingInfo(); public SavingInfo Seria { get { return seria; } } /// <summary> /// 启动程序时，读取FullChannels.xml，加载所有频道列表 /// </summary> public void LoadChannel() { //预处理集合，防止被重复加载数据 try { fullChannel.Clear(); XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(channelPath); XmlElement xmlRoot = xmlDoc.DocumentElement; foreach (XmlNode node in xmlRoot.ChildNodes) { //根据频道类型创建对象 ChannelBase channel =CreateChannel(node["channelType"].InnerText); channel.ChannelName = node["tvChannel"].InnerText; channel.Path = node["path"].InnerText; this.fullChannel.Add(channel.ChannelName, channel); } } catch { throw new Exception("数据加载错误!"); } } public ChannelBase CreateChannel(string type) { ChannelBase channel = null; switch (type) { case "TypeA": channel = new TypeAChannel(); break; case "TypeB": channel = new TypeBChannel(); break; default: break; } return channel; } //保存定制频道信息的文本文件名称 private string saveFileName = @"files\save"; /// <summary> /// 将我的电台信息存储到文本文件之中 /// 要解决中文乱码问题 /// </summary> public void SaveAsTxt() { try { FileStream fs = new FileStream(saveFileName + ".txt", FileMode.Create); StreamWriter writer = new StreamWriter(fs, Encoding.GetEncoding("GB2312")); string type = ""; for (int index = 0; index < this.seria.MyFavor.Count; index++) { ChannelBase channel = this.seria.MyFavor[index]; if (channel is TypeBChannel) { type = "TypeB"; } else { type = "TypeA"; } writer.WriteLine(type + "|" + channel.ChannelName + "|" + channel.Path); } writer.WriteLine("End of my Favor"); writer.Close(); fs.Close(); } catch (Exception ex) { MessageBox.Show("写入文件失败:" + ex.ToString()); } } /// <summary> /// 从文本文件之中读取"我的电台"信息 /// </summary> public void LoadFromText() { //#region 存在性判断 if (!File.Exists(@"files\save.txt")) {//不存在则不再处理 return; } //#endregion try { StreamReader reader = new StreamReader(saveFileName + ".txt", Encoding.GetEncoding("GB2312")); string line = reader.ReadLine(); string[] propertyValues; ChannelBase channel = null; while (line.Trim() != "End of my Favor") { propertyValues = line.Split('|'); channel = CreateChannel(propertyValues[0]); channel.ChannelName = propertyValues[1]; channel.Path = propertyValues[2]; this.seria.MyFavor.Add(channel); line = reader.ReadLine(); } reader.Close(); } catch (Exception ex) { MessageBox.Show("文件操作异常:" + ex.Message); } } } } SavingInfo类 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace TVXmlRead { //持久化信息类 public class SavingInfo { public SavingInfo() { this.myFavor = new List<ChannelBase>(); } #region 属性 /// <summary> /// 我的收藏 /// </summary> private List<ChannelBase> myFavor; public List<ChannelBase> MyFavor { get { if (myFavor == null) { return new List<ChannelBase>(); } else { return myFavor; } } set { myFavor = value; } } #endregion } } TvProgram类 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace TVXmlRead { /// <summary> /// 节目对象 /// </summary> public class TvProgram { #region 属性 /// <summary> /// 播出时间 /// </summary> private DateTime playTime; public DateTime PlayTime { get { return playTime; } set { playTime = value; } } /// <summary> /// 时段 /// </summary> private string median; public string Median { get { return median; } set { median = value; } } /// <summary> /// 名称 /// </summary> private string programName; public string ProgramName { get { return programName; } set { programName = value; } } /// <summary> /// 文件路径 /// </summary> private string filePath; public string FilePath { get { return filePath; } set { filePath = value; } } #endregion } } TypeAChannel类 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml; namespace TVXmlRead { /// <summary> /// TypeA类型节目单解析 /// </summary> public class TypeAChannel:ChannelBase { /// <summary> /// 多态，覆盖父类的获取频道列表方法 /// </summary> public override void Fetch() { //获取频道列表 XmlDocument xmlDoc = new XmlDocument(); try { //加载频道节目单文件 xmlDoc.Load(Path); } catch (Exception ex) { Console.WriteLine("文件加载失败:" + ex.Message); return; } XmlElement elem = xmlDoc.DocumentElement; if (ProgramList == null) { ProgramList = new List<TvProgram>(); } foreach (XmlNode node in elem.ChildNodes) { if (node.Name == "tvProgramTable") { foreach (XmlNode subnode in node.ChildNodes) { TvProgram program = new TvProgram(); program.PlayTime = DateTime.Parse(subnode["playTime"].InnerText); program.Median = subnode["meridien"].InnerText; program.ProgramName = subnode["programName"].InnerText; program.FilePath = subnode["path"].InnerText; this.ProgramList.Add(program); } } } } } } TypeBChannel类 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Xml; namespace TVXmlRead { /// <summary> /// TypeB类型节目单解析 /// </summary> public class TypeBChannel : ChannelBase { /// <summary> /// 多态，覆盖父类方法，获取TypeBChannel的节目列表 /// </summary> public override void Fetch() { //获取节目列表 XmlDocument xmlDoc = new XmlDocument(); try { xmlDoc.Load(Path); } catch (Exception ex) { Console.WriteLine("文件加载失败:" + ex.Message); return; } XmlElement elem = xmlDoc.DocumentElement; if (ProgramList == null) { ProgramList = new List<TvProgram>(); } foreach (XmlNode node in elem.ChildNodes[0])//【0】第一个节点 { TvProgram programe = new TvProgram(); programe.PlayTime = DateTime.Parse(node["playTime"].InnerText); programe.Median = ""; programe.ProgramName = node["name"].InnerText; programe.FilePath = node["path"].InnerText; this.ProgramList.Add(programe); } } } } MainForm主窗体