详解微信公众号开发客服接口实例（附代码）

最近，开发微信公众号，负责开发客服功能，这里简单记录下：

Kf_account.cs代码:

   public partial class Kf_account : Form    {      private readonly DataTable adt_user = new DataTable();      private readonly string as_INIFile = Application.StartupPath + "\\user.ini";         public Kf_account()      {        BindUser();      }         private void BindUser()      {        if (!File.Exists(as_INIFile))        {          var str = new StringBuilder();          str.Append(";内容由程序自动生成，请不要修改此文件内容\r\n");          str.Append("[total]\r\n");          str.Append("total=\r\n");          str.Append("[count]\r\n");          str.Append("count=\r\n");          str.Append("[user]\r\n");          //StreamWriter sw = default(StreamWriter);          //sw = File.CreateText(ls_INIFile);          //sw.WriteLine(str.ToString());          //sw.Close();          File.WriteAllText(as_INIFile, str.ToString(), Encoding.Unicode);          File.SetAttributes(as_INIFile, FileAttributes.Hidden);        }        CheckForIllegalCrossThreadCalls = false;        InitializeComponent();        Icon = Resource1.ico;        lkl_num.Text = INIFile.ContentValue("total", "total", as_INIFile);        lkl_num_c.Text = INIFile.ContentValue("count", "count", as_INIFile);        pictureBox1.Visible = true;        var sr = new StreamReader(as_INIFile, Encoding.Unicode);        String line;        int li_count = 0;        adt_user.Columns.Clear();        adt_user.Columns.Add("username", Type.GetType("System.String"));        adt_user.Columns.Add("openid", Type.GetType("System.String"));        while ((line = sr.ReadLine()) != null)        {          li_count++;          if (li_count > 6)          {            line = SysVisitor.Current.GetFormatStr(line);            DataRow newRow;            newRow = adt_user.NewRow();            newRow["username"] = line.Substring(0, line.LastIndexOf('='));            newRow["openid"] = line.Substring(line.LastIndexOf('=') + 1);            adt_user.Rows.Add(newRow);          }        }        sr.Close();        dataGridView1.AutoGenerateColumns = false;        dataGridView1.DataSource = adt_user;        //dataGridView1.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.DisplayedCells;        lbl_count.Text = "共" + (li_count - 6) + "行";        pictureBox1.Visible = false;      }         private void btn_GetUser_Click(object sender, EventArgs e)      {        if (MessageBox.Show(@"拉取用户信息的速度取决于你的关注数与网络速度，  可能需要几分钟甚至更长时间。  使用此功能将消耗大量用户管理接口配额。  要继续此操作吗？",          "提示：", MessageBoxButtons.YesNo) == DialogResult.No)        {          return;        }        var thr = new Thread(Get_user_list);        thr.Start();      }         private void Get_user_list()      {        File.Delete(as_INIFile);        var str = new StringBuilder();        str.Append(";内容由程序自动生成，请不要修改此文件内容\r\n");        str.Append("[total]\r\n");        str.Append("total=\r\n");        str.Append("[count]\r\n");        str.Append("count=\r\n");        str.Append("[user]\r\n");        File.WriteAllText(as_INIFile, str.ToString(), Encoding.Unicode);        File.SetAttributes(as_INIFile, FileAttributes.Hidden);           string ls_appid = INIFile.ContentValue("weixin", "Appid");        string ls_secret = INIFile.ContentValue("weixin", "AppSecret");        string access_token = "";        string menu = "";        if (ls_appid.Length != 18 || ls_secret.Length != 32)        {          MessageBox.Show("你的Appid或AppSecret不对，请检查后再操作");          return;        }        access_token = SysVisitor.Current.Get_Access_token(ls_appid, ls_secret);        if (access_token == "")        {          MessageBox.Show("Appid或AppSecret不对，请检查后再操作");          return;        }        menu = SysVisitor.Current.GetPageInfo("https://api.weixin.qq.com/cgi-bin/user/get?access_token=" + access_token);        if (menu.Substring(2, 7) == "errcode")        {          MessageBox.Show("拉取失败，返回消息：\r\n" + menu);        }           JObject json = JObject.Parse(menu);        lkl_num.Text = json["total"].ToString();        INIFile.SetINIString("total", "total", lkl_num.Text, as_INIFile);        lkl_num_c.Text = json["count"].ToString();        INIFile.SetINIString("count", "count", lkl_num_c.Text, as_INIFile);        int li_count = int.Parse(json["count"].ToString());        btn_GetUser.Enabled = false;        pictureBox1.Visible = true;        FileStream fs = null;        Encoding encoder = Encoding.Unicode;        for (int i = 0; i < li_count; i++)        {          string openid, username;          openid = Get_UserName(json["data"]["openid"][i].ToString());          username = json["data"]["openid"][i].ToString();          //INIFile.SetINIString("user", openid, username, as_INIFile);          byte[] bytes = encoder.GetBytes(openid + "=" + username + " \r\n");          fs = File.OpenWrite(as_INIFile);          //设定书写的開始位置为文件的末尾           fs.Position = fs.Length;          //将待写入内容追加到文件末尾           fs.Write(bytes, 0, bytes.Length);          fs.Close();          lab_nums.Text = "已拉取" + i + "个，还剩" + (li_count - i) + "个，请耐心等待";        }        lab_nums.Text = "";        //BindUser();        btn_GetUser.Enabled = true;        pictureBox1.Visible = false;        MessageBox.Show("已全部拉取完毕,请重新打开该窗口");      }         /// <summary>      ///   获取用户信息详情，返回json      /// </summary>      ///<param name="as_openid">      private string Get_User(string as_openid)      {        string ls_json = "";        string access_token = "";        access_token = SysVisitor.Current.Get_Access_token();        ls_json =          SysVisitor.Current.GetPageInfo("https://api.weixin.qq.com/cgi-bin/user/info?access_token=" + access_token + "&openid=" + as_openid + "&lang=zh_CN");        return ls_json;      }         /// <summary>      ///   获取用户用户的昵称      /// </summary>      private string Get_UserName(string as_openid)      {        string ls_json = "";        ls_json = Get_User(as_openid);        string username = "";        JObject json = JObject.Parse(ls_json);        username = json["nickname"].ToString();        username = SysVisitor.Current.GetFormatStr(username);        return username;      }         private void btn_search_Click(object sender, EventArgs e)      {        string username = txt_search.Text.Trim();        if (string.IsNullOrWhiteSpace(username))        {          return;        }        DataRow[] datarows = adt_user.Select("username like '%" + username + "%'");           var ldt = new DataTable();        ldt.Columns.Clear();        ldt.Columns.Add("username", Type.GetType("System.String"));        ldt.Columns.Add("openid", Type.GetType("System.String"));        ldt = ToDataTable(datarows);        try        {          lbl_count.Text = ldt.Rows.Count.ToString();        }        catch        {        }        dataGridView1.AutoGenerateColumns = false;        dataGridView1.DataSource = ldt;      }         public DataTable ToDataTable(DataRow[] rows)      {        if (rows == null || rows.Length == 0) return null;        DataTable tmp = rows[0].Table.Clone(); // 复制DataRow的表结构         foreach (DataRow row in rows)          tmp.Rows.Add(row.ItemArray); // 将DataRow添加到DataTable中         return tmp;      }         private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)      {        try        {          SysVisitor.Current.Wx_openid =            dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[1].Value.ToString();          SysVisitor.Current.Wx_username =            dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[0].Value.ToString();          //MessageBox.Show(str);          grb_chat.Enabled = true;          grb_chat.Text = SysVisitor.Current.Wx_username;        }        catch        {           }        webBrowser_msg.DocumentText = "";        string url = string.Format("https://api.weixin.qq.com/cgi-bin/customservice/getrecord?access_token={0}",          SysVisitor.Current.Get_Access_token());        string ls_text = @"{";        ls_text += "\"starttime\" : " + DateTime.Now.AddDays(-3).Ticks + ",";        ls_text += "\"endtime\" : " + DateTime.Now.Ticks + ",";        ls_text += "\"openid\" : \"" + SysVisitor.Current.Wx_openid + "\",";        ls_text += "\"pagesize\" : 1000,";        ls_text += "\"pageindex\" : 1,";        ls_text += "}";        string ls_history = SysVisitor.Current.PostPage(url, ls_text);        webBrowser_msg.DocumentText = ls_history;      }         private void btn_send_Click(object sender, EventArgs e)      {        string ls_msg = richTextBox_msg.Text;        string ls_text = @"{";        ls_text += "\"touser\":\"" + SysVisitor.Current.Wx_openid + "\",";        ls_text += "\"msgtype\":\"text\",";        ls_text += "\"text\":";        ls_text += "{";        ls_text += "\"content\":\"" + ls_msg + "\"";        ls_text += "}";        ls_text += "}";        string url = string.Format("https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token={0}",          SysVisitor.Current.Get_Access_token());        string ls_isright = SysVisitor.Current.PostPage(url, ls_text);           webBrowser_msg.DocumentText += "  " + ls_isright + "    "; } private void btn_addkf_Click(object sender, EventArgs e) { string url = string.Format("https://api.weixin.qq.com/customservice/kfaccount/add?access_token={0}", SysVisitor.Current.Get_Access_token()); //客服账号 设置 xxx@你的公众号 这样的格式才是正确的哟。 string ls_text = "{"; ls_text += "\"kf_account\":test2@gz-sisosoft,"; ls_text += "\"nickname\":\"客服2\","; ls_text += "\"password\":\"12345\","; ls_text += "}"; string ls_kf = @"{ 'kf_account' : 'test1@gz-sisosoft', 'nickname' : '客服1', 'password' : '123456', }"; string ls_isok = SysVisitor.Current.PostPage(url, ls_text); MessageBox.Show(ls_isok); } private void Kf_account_Load(object sender, EventArgs e) { } }

SysVisitor.cs代码:

class SysVisitor   {     private static SysVisitor visit = null;     public static SysVisitor Current     {       get       {         if (visit == null)           visit = new SysVisitor();            return visit;       }     }     /// <summary>     /// 获取access_token     /// </summary>     ///<param name="appid">appid     ///<param name="secret">appsecret     /// <returns></returns>     public string Get_Access_token(string appid, string appsecret)     {       string secondappid = INIFile.ContentValue("weixin", "secondappid");       if (appid.ToLower() == secondappid.ToLower())       {         string ls_time = INIFile.ContentValue("weixin", "gettime");         Decimal ldt;         try         {           ldt = Convert.ToDecimal(ls_time);           if (Convert.ToDecimal(DateTime.Now.ToString("yyyyMMddHHmmss")) - ldt < 7100)//每两个小时刷新一次           {             return INIFile.ContentValue("weixin", "access_token");           }         }         catch         { }       }       string ls_appid = appid.Replace(" ", "");       string ls_secret = appsecret.Replace(" ", "");       string access_token = "";       string url = string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", ls_appid, ls_secret);       string json_access_token = GetPageInfo(url);       //DataTable dt = Json.JsonToDataTable(json_access_token);       DataTable dt = JsonHelper.JsonToDataTable(json_access_token);       try       {         access_token = dt.Rows[0]["access_token"].ToString();       }       catch       {         return "";       }       INIFile.SetINIString("weixin", "gettime", DateTime.Now.ToString("yyyyMMddHHmmss"));       INIFile.SetINIString("weixin", "access_token", access_token);       INIFile.SetINIString("weixin", "secondappid", ls_appid);          return access_token;     }        /// <summary>     /// 获取access_token     /// </summary>     public string Get_Access_token()     {       string ls_appid = INIFile.ContentValue("weixin", "Appid");       string ls_secret = INIFile.ContentValue("weixin", "AppSecret");       return Get_Access_token(ls_appid, ls_secret);     }        /// <summary>     /// Get方法请求url并接收返回消息     /// </summary>     ///<param name="strUrl">Url地址     /// <returns></returns>     public string GetPageInfo(string url)     {       HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);       HttpWebResponse response = (HttpWebResponse)request.GetResponse();          string ret = string.Empty;       Stream s;       string StrDate = "";       string strValue = "";          if (response.StatusCode == HttpStatusCode.OK)       {         s = response.GetResponseStream();         ////在这儿处理返回的文本         StreamReader Reader = new StreamReader(s, Encoding.UTF8);            while ((StrDate = Reader.ReadLine()) != null)         {           strValue += StrDate + "\r\n";         }         //strValue = Reader.ReadToEnd();       }       return strValue;     }        /// <summary>     /// Post方法     /// </summary>     ///<param name="posturl">URL     ///<param name="postData">Post数据     /// <returns></returns>     public string PostPage(string posturl, string postData)     {       Stream outstream = null;       Stream instream = null;       StreamReader sr = null;       HttpWebResponse response = null;       HttpWebRequest request = null;       Encoding encoding = Encoding.UTF8;       byte[] data = encoding.GetBytes(postData);       // 准备请求...       try       {         // 设置参数         request = WebRequest.Create(posturl) as HttpWebRequest;         CookieContainer cookieContainer = new CookieContainer();         request.CookieContainer = cookieContainer;         request.AllowAutoRedirect = true;         request.Method = "POST";         request.ContentType = "application/x-www-form-urlencoded";         request.ContentLength = data.Length;         outstream = request.GetRequestStream();         outstream.Write(data, 0, data.Length);         outstream.Close();         //发送请求并获取相应回应数据         response = request.GetResponse() as HttpWebResponse;         //直到request.GetResponse()程序才开始向目标网页发送Post请求         instream = response.GetResponseStream();         sr = new StreamReader(instream, encoding);         //返回结果网页（html）代码         string content = sr.ReadToEnd();         string err = string.Empty;         return content;       }       catch (Exception ex)       {         string err = ex.Message;         return string.Empty;       }     }        /// <summary>     /// 格式化字符串     /// </summary>     ///<param name="str">     /// <returns></returns>     public string GetFormatStr(string str)     {       if ("" == str)         return "";       else       {         str = str.Trim();         str = str.Replace("'", "'");         str = str.Replace("〈", "<");         str = str.Replace("〉", ">");         str = str.Replace("，", ",");         return str;       }     }     string ls_username = "";     /// <summary>     /// 用户名     /// </summary>     public string Wx_username     {       get       {         return ls_username;       }       set       {         ls_username = value;       }     }     string ls_openid = "";     /// <summary>     /// Openid     /// </summary>     public string Wx_openid     {       get       {         return ls_openid;       }       set       {         ls_openid = value;       }     }   }

INIFile.cs代码:

class INIFile    {      ///// <summary>      ///// 设置INI文件参数      ///// </summary>      /////<param name="section">INI文件中的段落      /////<param name="key">INI文件中的关键字      /////<param name="val">INI文件中关键字的数值      /////<param name="filePath">INI文件的完整的路径和名称      ///// <returns></returns>      //[DllImport("kernel32")]      //private static extern long WritePrivateProfileString(      //  string section, string key, string val, string filePath);         ///// <summary>      ///// 获取INI文件参数      ///// </summary>      /////<param name="section">INI文件中的段落名称      /////<param name="key">INI文件中的关键字      /////<param name="def">无法读取时候时候的缺省数值      /////<param name="retVal">读取数值      /////<param name="size">数值的大小      /////<param name="filePath">INI文件的完整路径和名称      //[DllImport("kernel32")]      //private static extern int GetPrivateProfileString(      //  string section, string key, string def, StringBuilder retVal, int size, string filePath);         //static string gs_FileName = System.AppDomain.CurrentDomain.BaseDirectory + "Config.ini";         ///// <summary>      ///// 获取INI文件参数      ///// </summary>      /////<param name="as_section">INI文件中的段落名称      /////<param name="as_key">INI文件中的关键字      /////<param name="as_FileName">INI文件的完整路径和名称      //public static string GetINIString(string as_section, string as_key, string as_FileName)      //{      //  StringBuilder temp = new StringBuilder(255);      //  int i = GetPrivateProfileString(as_section, as_key, "", temp, 255, as_FileName);      //  return temp.ToString();      //}      ///// <summary>      ///// 获取INI文件参数      ///// </summary>      /////<param name="as_section">INI文件中的段落名称      /////<param name="as_key">INI文件中的关键字      /////<param name="as_FileName">INI文件的完整路径和名称      //public static string GetINIString(string as_section, string as_key)      //{      //  return GetINIString(as_section, as_key, gs_FileName);      //}         ///// <summary>      ///// 设置INI文件参数      ///// </summary>      /////<param name="as_section">INI文件中的段落      /////<param name="as_key">INI文件中的关键字      /////<param name="as_Value">INI文件中关键字的数值      /////<param name="as_FileName">INI文件的完整路径和名称      //public static long SetINIString(string as_section, string as_key, string as_Value, string as_FileName)      //{      //  return WritePrivateProfileString(as_section, as_key, as_Value, as_FileName);      //}      ///// <summary>      ///// 设置INI文件参数      ///// </summary>      /////<param name="as_section">INI文件中的段落      /////<param name="as_key">INI文件中的关键字      /////<param name="as_Value">INI文件中关键字的数值      //public static long SetINIString(string as_section, string as_key, string as_Value)      //{      //  return SetINIString(as_section, as_key, as_Value, gs_FileName);      //}      /// <summary>      /// 写入INI文件      /// </summary>      ///<param name="section">节点名称[如[TypeName]]      ///<param name="key">键      ///<param name="val">值      ///<param name="filepath">文件路径      /// <returns></returns>      [DllImport("kernel32")]      public static extern long WritePrivateProfileString(string section, string key, string val, string filepath);      [DllImport("kernel32.dll")]      public extern static int GetPrivateProfileSectionNamesA(byte[] buffer, int iLen, string fileName);      /// <summary>      /// 写入INI文件(section:节点名称 key:键 val:值)      /// </summary>      ///<param name="section">节点名称      ///<param name="key">键      ///<param name="val">值      /// <returns></returns>      public static long SetINIString(string section, string key, string val, string as_FilePath = "")      {        if (as_FilePath == "")        {          return (WritePrivateProfileString(section, key, val, strFilePath));        }        else        {          return (WritePrivateProfileString(section, key, val, as_FilePath));         }      }      /// <summary>      /// 读取INI文件      /// </summary>      ///<param name="section">节点名称      ///<param name="key">键      ///<param name="def">值      ///<param name="retval">stringbulider对象      ///<param name="size">字节大小      ///<param name="filePath">文件路径      /// <returns></returns>      [DllImport("kernel32")]      public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);      public static string strFilePath = Application.StartupPath + "\\Config.ini";//获取INI文件默认路径      public static string strSec = "";         //INI文件名            /// <summary>      /// 读取INI文件中的内容方法 (Section 节点名称;key 键)      /// </summary>      ///<param name="Section">节点名称      ///<param name="key">键      /// <returns></returns>      public static string ContentValue(string Section, string key, string as_FilePath = "")      {           StringBuilder temp = new StringBuilder(1024);        if (as_FilePath == "")        {          GetPrivateProfileString(Section, key, "", temp, 1024, strFilePath);        }        else        {          GetPrivateProfileString(Section, key, "", temp, 1024, as_FilePath);         }        return temp.ToString();      }      /// <summary>      /// 获取指定小节所有项名和值的一个列表       /// </summary>      ///<param name="section">节 段，欲获取的小节。注意这个字串不区分大小写      ///<param name="buffer">缓冲区 返回的是一个二进制的串，字符串之间是用"\0"分隔的      ///<param name="nSize">缓冲区的大小      ///<param name="filePath">初始化文件的名字。如没有指定完整路径名，windows就在Windows目录中查找文件      /// <returns></returns>      [DllImport("kernel32")]      public static extern int GetPrivateProfileSection(string section, byte[] buffer, int nSize, string filePath);      /// <summary>      /// 获取指定段section下的所有键值对 返回集合的每一个键形如"key=value"      /// </summary>      ///<param name="section">指定的段落      ///<param name="filePath">ini文件的绝对路径      /// <returns></returns>      public static List<string> ReadKeyValues(string section, string as_FilePath = "")      {        byte[] buffer = new byte[32767];        List<string> list = new List<string>();        int length = 0;        if (as_FilePath == "")        {          length = GetPrivateProfileSection(section, buffer, buffer.GetUpperBound(0), strFilePath);        }        else        {          length = GetPrivateProfileSection(section, buffer, buffer.GetUpperBound(0), as_FilePath);         }        string temp;        int postion = 0;        for (int i = 0; i < length; i++)        {          if (buffer[i] == 0x00) //以'\0'来作为分隔          {            temp = System.Text.ASCIIEncoding.Default.GetString(buffer, postion, i - postion).Trim();            postion = i + 1;            if (temp.Length > 0)            {              list.Add(temp);            }          }        }        return list;      }      /// <summary>      /// 删除指定的key      /// </summary>      ///<param name="section">要写入的段落名      ///<param name="key">要删除的键      ///<param name="fileName">INI文件的完整路径和文件名      public static void DelKey(string section, string key, string as_FilePath = "")      {        if (as_FilePath == "")        {          WritePrivateProfileString(section, key, null, strFilePath);        }        else        {          WritePrivateProfileString(section, key, null, as_FilePath);        }      }      /// <summary>      /// 返回该配置文件中所有Section名称的集合      /// </summary>      public static ArrayList ReadSections()      {        byte[] buffer = new byte[65535];        int rel = GetPrivateProfileSectionNamesA(buffer, buffer.GetUpperBound(0), strFilePath);         int iCnt, iPos;        ArrayList arrayList = new ArrayList();        string tmp;        if (rel > 0)        {          iCnt = 0; iPos = 0;          for (iCnt = 0; iCnt < rel; iCnt++)          {            if (buffer[iCnt] == 0x00)            {              tmp = System.Text.ASCIIEncoding.UTF8.GetString(buffer, iPos, iCnt - iPos).Trim();              iPos = iCnt + 1;              if (tmp != "")                arrayList.Add(tmp);            }          }        }        return arrayList;      }     }</string></string></string>

运行结果:

这里写图片描述

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