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");
}
/// <summary>
/// 获取用户信息详情，返回json
/// </summary>
/// <param name="as_openid"></param>
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 += "<P align=right><FONT size=3>" + ls_isright + "</FONT></P>";
}
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>
/// <param name="secret">appsecret</param>
/// <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</param>
/// <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>
/// <param name="postData">Post数据</param>
/// <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"></param>
/// <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>
///// <param name="key">INI文件中的关键字</param>
///// <param name="val">INI文件中关键字的数值</param>
///// <param name="filePath">INI文件的完整的路径和名称</param>
///// <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>
///// <param name="key">INI文件中的关键字</param>
///// <param name="def">无法读取时候时候的缺省数值</param>
///// <param name="retVal">读取数值</param>
///// <param name="size">数值的大小</param>
///// <param name="filePath">INI文件的完整路径和名称</param>
//[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>
///// <param name="as_key">INI文件中的关键字</param>
///// <param name="as_FileName">INI文件的完整路径和名称</param>
//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>
///// <param name="as_key">INI文件中的关键字</param>
///// <param name="as_FileName">INI文件的完整路径和名称</param>
//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>
///// <param name="as_key">INI文件中的关键字</param>
///// <param name="as_Value">INI文件中关键字的数值</param>
///// <param name="as_FileName">INI文件的完整路径和名称</param>
//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>
///// <param name="as_key">INI文件中的关键字</param>
///// <param name="as_Value">INI文件中关键字的数值</param>
//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>
/// <param name="key">键</param>
/// <param name="val">值</param>
/// <param name="filepath">文件路径</param>
/// <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>
/// <param name="key">键</param>
/// <param name="val">值</param>
/// <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>
/// <param name="key">键</param>
/// <param name="def">值</param>
/// <param name="retval">stringbulider对象</param>
/// <param name="size">字节大小</param>
/// <param name="filePath">文件路径</param>
/// <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>
/// <param name="key">键</param>
/// <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>
/// <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>
/// <param name="nSize">缓冲区的大小</param>
/// <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</param>
/// <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>
/// <param name="filePath">ini文件的绝对路径</param>
/// <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>
/// <param name="key">要删除的键</param>
/// <param name="fileName">INI文件的完整路径和文件名</param>
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;
}
}运行结果:
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