微信公众平台开发教程（四） 实例入门：机器人回复(附源码)

class EventHandler : IHandler  {    /// <summary>    /// 请求的xml    /// </summary>    private string RequestXml { get; set; }    /// <summary>    /// 构造函数    /// </summary>    /// <param name="requestXml"></param>    public EventHandler(string requestXml)    {      this.RequestXml = requestXml;    }    /// <summary>    /// 处理请求    /// </summary>    /// <returns></returns>    public string HandleRequest()    {      string response = string.Empty;      EventMessage em = EventMessage.LoadFromXml(RequestXml);      if (em.Event.Equals("subscribe",StringComparison.OrdinalIgnoreCase))      {        //回复欢迎消息        TextMessage tm = new TextMessage();        tm.ToUserName = em.FromUserName;        tm.FromUserName = em.ToUserName;        tm.CreateTime = Common.GetNowTime();        tm.Content = "欢迎您关注***，我是大哥大，有事就问我，呵呵！/n/n";        response = tm.GenerateContent();      }      return response;    }  }

/// <summary>  /// 文本信息处理类  /// </summary>  public class TextHandler : IHandler  {    /// <summary>    /// 请求的XML    /// </summary>    private string RequestXml { get; set; }    /// <summary>    /// 构造函数    /// </summary>    /// <param name="requestXml">请求的xml</param>    public TextHandler(string requestXml)    {      this.RequestXml = requestXml;    }    /// <summary>    /// 处理请求    /// </summary>    /// <returns></returns>    public string HandleRequest()    {      string response = string.Empty;      TextMessage tm = TextMessage.LoadFromXml(RequestXml);      string content = tm.Content.Trim();      if (string.IsNullOrEmpty(content))      {        response = "您什么都没输入，没法帮您啊，%>_<%。";      }      else      {        if (content.StartsWith("tq", StringComparison.OrdinalIgnoreCase))        {          string cityName = content.Substring(2).Trim();          response = WeatherHelper.GetWeather(cityName);        }        else        {          response = HandleOther(content);        }      }      tm.Content = response;      //进行发送者、接收者转换      string temp = tm.ToUserName;      tm.ToUserName = tm.FromUserName;      tm.FromUserName = temp;      response = tm.GenerateContent();      return response;    }    /// <summary>    /// 处理其他消息    /// </summary>    /// <param name="tm"></param>    /// <returns></returns>    private string HandleOther(string requestContent)    {      string response = string.Empty;      if (requestContent.Contains("你好") || requestContent.Contains("您好"))      {        response = "您也好~";      }      else if (requestContent.Contains("傻"))      {        response = "我不傻！哼~ ";      }      else if (requestContent.Contains("逼") || requestContent.Contains("操"))      {        response = "哼，你说脏话！ ";      }      else if (requestContent.Contains("是谁"))      {        response = "我是大哥大，有什么能帮您的吗？~";      }      else if (requestContent.Contains("再见"))      {        response = "再见！";      }      else if (requestContent.Contains("bye"))      {        response = "Bye！";      }      else if (requestContent.Contains("谢谢"))      {        response = "不客气！嘿嘿";      }      else if (requestContent == "h" || requestContent == "H" || requestContent.Contains("帮助"))      {        response = @"查询天气，输入tq 城市名称/拼音/首字母";      }      else      {        response = "您说的，可惜，我没明白啊，试试其他关键字吧。";      }      return response;    }  }

class WeatherHelper  {    /// <summary>    /// 城市集合字段    /// </summary>    private static Dictionary<string, City> mCities;    /// <summary>    /// 城市集合    /// </summary>    public static Dictionary<string, City> Cities    {      get      {        if (mCities == null)        {          LoadCities();        }        return mCities;      }    }    /// <summary>    /// 加载城市    /// </summary>    private static void LoadCities()    {      mCities = new Dictionary<string, City>();      mCities.Clear();      mCities.Add("101010100", new City() { Code = "101010100", Name = "北京", PinYin = "beijing", FristLetter = "bj" });      mCities.Add("101020100", new City() { Code = "101020100", Name = "上海", PinYin = "shanghai", FristLetter = "sh" });      mCities.Add("101200101", new City() { Code = "101200101", Name = "武汉", PinYin = "wuhai", FristLetter = "wh" });          }    /// <summary>    /// 获取城市的天气    /// </summary>    /// <param name="name">城市名称、拼音或首字母</param>    /// <returns></returns>    public static string GetWeather(string name)    {      string result = string.Empty;      string cityCode = string.Empty;      //获取城市编码      IEnumerable<string> codes = from item in Cities                    where item.Value != null                       && (item.Value.Name.Equals(name, StringComparison.OrdinalIgnoreCase)                           || item.Value.PinYin.Equals(name, StringComparison.OrdinalIgnoreCase)                           || item.Value.FristLetter.Equals(name, StringComparison.OrdinalIgnoreCase))                    select item.Value.Code;      if (codes != null && codes.Count() > 0)      {        cityCode = codes.First<string>();      }      //http请求，获取天气      if (!string.IsNullOrEmpty(cityCode))      {        string url = "http://m.weather.com.cn/data/{0}.html";        url = string.Format(url, cityCode);        WebRequest request = HttpWebRequest.Create(url);        //超时时间为：2秒        request.Timeout = 2000;        request.Credentials = CredentialCache.DefaultCredentials;        WebResponse response = request.GetResponse();        StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);        string weahterInfo = reader.ReadToEnd();        if (string.IsNullOrEmpty(weahterInfo))        {          result = "暂时没有取到天气数据,请稍后再试";        }        else        {          XmlDocument doc = JsonConvert.DeserializeXmlNode(weahterInfo);          if (doc != null)          {            XmlNode node = doc.DocumentElement;            if (node != null)            {              StringBuilder builder = new StringBuilder();              builder.Append(node["city"].InnerText).Append("/n");              builder.Append(node["date_y"].InnerText).Append(" ").Append(node["week"].InnerText).Append("/n");              builder.Append("今天：").Append("(").Append(node["temp1"].InnerText).Append(")").Append(node["weather1"].InnerText).Append(node["wind1"].InnerText).Append(node["fl1"].InnerText).Append("/n");              builder.Append("24小时穿衣指数:").Append(node["index_d"].InnerText).Append("/n");              builder.Append("明天：").Append("(").Append(node["temp2"].InnerText).Append(")").Append(node["weather2"].InnerText).Append(node["wind2"].InnerText).Append(node["fl2"].InnerText).Append("/n");              builder.Append("48小时穿衣指数:").Append(node["index48_d"].InnerText).Append("/n");              result = builder.ToString();            }          }          #region 天气json数据格式          /*                 {  "weatherinfo": {    "city": "北京",     "city_en": "beijing",     "date_y": "2013年11月4日",     "date": "",     "week": "星期一",     "fchh": "11",     "cityid": "101010100",     "temp1": "17℃~5℃",     "temp2": "16℃~5℃",     "temp3": "18℃~4℃",     "temp4": "17℃~5℃",     "temp5": "14℃~6℃",     "temp6": "14℃~2℃",     "tempF1": "62.6~41",     "tempF2": "60.8~41",     "tempF3": "64.4~39.2",     "tempF4": "62.6~41",     "tempF5": "57.2~42.8",     "tempF6": "57.2~35.6",     "weather1": "晴转多云",     "weather2": "多云",     "weather3": "多云转晴",     "weather4": "晴转多云",     "weather5": "多云转阴",     "weather6": "阴转晴",     "img1": "0",     "img2": "1",     "img3": "1",     "img4": "99",     "img5": "1",     "img6": "0",     "img7": "0",     "img8": "1",     "img9": "1",     "img10": "2",     "img11": "2",     "img12": "0",     "img_single": "0",     "img_title1": "晴",     "img_title2": "多云",     "img_title3": "多云",     "img_title4": "多云",     "img_title5": "多云",     "img_title6": "晴",     "img_title7": "晴",     "img_title8": "多云",     "img_title9": "多云",     "img_title10": "阴",     "img_title11": "阴",     "img_title12": "晴",     "img_title_single": "晴",     "wind1": "微风",     "wind2": "微风",     "wind3": "微风",     "wind4": "微风",     "wind5": "微风",     "wind6": "北风4-5级",     "fx1": "微风",     "fx2": "微风",     "fl1": "小于3级",     "fl2": "小于3级",     "fl3": "小于3级",     "fl4": "小于3级",     "fl5": "小于3级",     "fl6": "4-5级",     "index": "较冷",     "index_d": "建议着大衣、呢外套加毛衣、卫衣等服装。体弱者宜着厚外套、厚毛衣。因昼夜温差较大，注意增减衣服。",     "index48": "冷",     "index48_d": "天气冷，建议着棉服、羽绒服、皮夹克加羊毛衫等冬季服装。年老体弱者宜着厚棉衣、冬大衣或厚羽绒服。",     "index_uv": "中等",     "index48_uv": "弱",     "index_xc": "适宜",     "index_tr": "适宜",     "index_co": "舒适",     "st1": "17",     "st2": "5",     "st3": "17",     "st4": "5",     "st5": "18",     "st6": "6",     "index_cl": "适宜",     "index_ls": "适宜",     "index_ag": "极不易发"  }}        */          #endregion        }      }      else      {        result = "没有获取到该城市的天气,请确定输入了正确的城市名称,如/'北京/'或者/'beijing/'或者/'bj/'";      }      //返回      return result;    }    /// <summary>    /// 内部类：城市    /// </summary>    internal class City    {      /// <summary>      /// 编码      /// </summary>      public string Code { get; set; }      /// <summary>      /// 名称      /// </summary>      public string Name { get; set; }      /// <summary>      /// 拼音      /// </summary>      public string PinYin { get; set; }      /// <summary>      /// 拼音首字母      /// </summary>      public string FristLetter { get; set; }    }  }