如何使用.NET构建微信公众号客服接口

如何使用.NET构建微信公众号客服接口，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

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");    }    /// 
    ///   获取用户信息详情，返回json    /// 
    ///     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;    }    /// 
    ///   获取用户用户的昵称    /// 
    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;      }    }    /// 
    /// 获取access_token    /// 
    /// appid    /// appsecret    ///     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;    }    /// 
    /// 获取access_token    /// 
    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);    }    /// 
    /// Get方法请求url并接收返回消息    /// 
    /// Url地址    ///     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;    }    /// 
    /// Post方法    /// 
    /// URL    /// Post数据    ///     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;      }    }    /// 
    /// 格式化字符串    /// 
    ///     ///     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 = "";    /// 
    /// 用户名    /// 
    public string Wx_username    {      get      {        return ls_username;      }      set      {        ls_username = value;      }    }    string ls_openid = "";    /// 
    /// Openid    /// 
    public string Wx_openid    {      get      {        return ls_openid;      }      set      {        ls_openid = value;      }    }  }

INIFile.cs代码:

 class INIFile  {    ///// 
    ///// 设置INI文件参数    ///// 
    ///// INI文件中的段落    ///// INI文件中的关键字    ///// INI文件中关键字的数值    ///// INI文件的完整的路径和名称    /////     //[DllImport("kernel32")]    //private static extern long WritePrivateProfileString(    //  string section, string key, string val, string filePath);    ///// 
    ///// 获取INI文件参数    ///// 
    ///// INI文件中的段落名称    ///// INI文件中的关键字    ///// 无法读取时候时候的缺省数值    ///// 读取数值    ///// 数值的大小    ///// 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";    ///// 
    ///// 获取INI文件参数    ///// 
    ///// INI文件中的段落名称    ///// INI文件中的关键字    ///// 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();    //}    ///// 
    ///// 获取INI文件参数    ///// 
    ///// INI文件中的段落名称    ///// INI文件中的关键字    ///// 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);    //}    ///// 
    ///// 设置INI文件参数    ///// 
    ///// INI文件中的段落    ///// INI文件中的关键字    ///// INI文件中关键字的数值    ///// 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);    //}    ///// 
    ///// 设置INI文件参数    ///// 
    ///// INI文件中的段落    ///// INI文件中的关键字    ///// 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);    //}    /// 
    /// 写入INI文件    /// 
    /// 节点名称[如[TypeName]]    /// 键    /// 值    /// 文件路径    ///     [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);    /// 
    /// 写入INI文件(section:节点名称 key:键 val:值)    /// 
    /// 节点名称    /// 键    /// 值    ///     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));       }    }    /// 
    /// 读取INI文件    /// 
    /// 节点名称    /// 键    /// 值    /// stringbulider对象    /// 字节大小    /// 文件路径    ///     [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    /// 
    /// 读取INI文件中的内容方法 (Section 节点名称;key 键)    /// 
    /// 节点名称    /// 键    ///     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();    }    /// 
    /// 获取指定小节所有项名和值的一个列表     /// 
    /// 节 段，欲获取的小节。注意这个字串不区分大小写    /// 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    /// 缓冲区的大小    /// 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    ///     [DllImport("kernel32")]    public static extern int GetPrivateProfileSection(string section, byte[] buffer, int nSize, string filePath);    /// 
    /// 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"    /// 
    /// 指定的段落    /// ini文件的绝对路径    ///     public static List ReadKeyValues(string section, string as_FilePath = "")    {      byte[] buffer = new byte[32767];      List list = new List();      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;    }    /// 
    /// 删除指定的key    /// 
    /// 要写入的段落名    /// 要删除的键    /// 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);      }    }    /// 
    /// 返回该配置文件中所有Section名称的集合    /// 
    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;    }   }

运行结果:

看完上述内容，你们掌握如何使用.NET构建微信公众号客服接口的方法了吗？如果还想学到更多技能或想了解更多相关内容，欢迎关注行业资讯频道，感谢各位的阅读！