微信公众平台开发教程（四）实例入门：机器人回复(附源码)

Ros ·

更新时间:2024-11-14

· 902 次阅读

上一篇文章，写了基本框架，可能很多人会觉得晕头转向，这里提供一个简单的例子来予以说明，希望能帮你解开谜团。

一、功能介绍

通过微信公众平台实现在线客服机器人功能。主要的功能包括：简单对话、查询天气等服务。

这里只是提供比较简单的功能，重在通过此实例来说明公众平台的具体研发过程。只是一个简单DEMO，如果需要的话可以在此基础上进行扩展。

当然后续我们还会推出比较复杂的应用实例。

二、具体实现

1、提供访问接口

这里不再赘述，参照上一章，微信公众账号开发教程（二）基础框架搭建
//www.jb51.net/article/98754.htm

2、签名认证和分发请求

这里不再赘述，参照上一章，微信公众账号开发教程（二）基础框架搭建
//www.jb51.net/article/98754.htm

3、处理请求，并响应

1）关注

当微信用户关注公众账号时，可以给其适当的提示。可以是欢迎词，可以是帮助提示。

直接上代码：


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;
    }
  }

2）问候

简单的交流问候，比如你好、帮助等等，跟我们使用微信聊天一样，不过回应是由我们的程序响应。具体功能，可以根据自己的需要进行添加。

微信本来就是沟通的平台。这个案例，可以用于在线服务机器人，类似于淘宝的客服机器人，可是我们这个是微信版的。呵呵
其实，很简单，获取请求消息，根据关键字来匹配回应。当然这里可能要做的工作很多，如何支持智能匹配，如何支持模糊匹配等。

代码如下：


/// <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;
    }
  }

3）查询天气

这个功能需要请求实时查询的，请求官方的天气发布网站，然后解析其返回值，按照我们需要的格式，组织天气信息，最后发送给微信客户。

采用文本消息方式处理。

用户请求，只需输入：tq 城市名称/拼音/首字母，即可获取消息。

回复的消息：（以北京为例）

北京
2013年11月6日星期三
今天：(17℃~4℃)晴北风4-5级转3-4级4-5级转3-4级
24小时穿衣指数: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。
明天：(14℃~3℃)晴转多云微风小于3级
48小时穿衣指数: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。

来看源码吧：


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; }
    }
  }

三、源码

这里可是可执行的代码哦。应大家的需求，这里提供全部的源代码。

demo下载

机器人微信公众平台源码教程

1024 个赞