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微信公眾號查看追蹤者介面的.NET實例教學

Y2J

Apr 26, 2017 am 10:19 AM

實體類別:

 public class userlist
  {
    public string total { get; set; }
    public string count { get; set; }
    public userlistopenid data { get; set; }
    public string next_openid { get; set; }
  }

 public class userlistopenid
  {
    public List<string> openid { get; set;
  }

 public class userdetail
  {
    public int subscribe { get; set; }
    public string openid { get; set; }
    public string nickname { get; set; }
    public int sex { get; set; }
    public string language { get; set; }
    public string city { get; set; }
    public string province { get; set; }
    public string country { get; set; }
    public string headimgurl { get; set; }
    public int subscribe_time { get; set; }
    public string unionid { get; set; }
    public string remark { get; set; }
    public int groupid { get; set; }
    public int[] tagid_list { get; set; }
  }

getUser.aspx程式碼:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="getUser.aspx.cs" Inherits="MyTest.WebUI.Manager.usermsg.getUser" %>

<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title></title>
  <!-- Bootstrap -->
  <link href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
  <!--[if lt IE 9]>
   <script src="//cdn.bootcss.com/html5shiv/3.7.2/html5shiv.min.js"></script>
   <script src="//cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>
  <![endif]-->
</head>
<body>
  <form runat="server">

    <p class="container">
      <p class="row">
        <p class="col-md-6 col-md-push-2">
          <asp:Button class="btn btn-primary" ID="btnGet" runat="server" Text="获取所有用户openID" OnClick="btnGet_Click" />
        </p>
        <p class="col-md-6 col-md-pull-2">
          <asp:DropDownList CssClass="form-control" ID="ddlopenids" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddlopenids_SelectedIndexChanged"></asp:DropDownList>
          <asp:Label ID="lblMSG" runat="server" Text=""></asp:Label>
          <asp:Image class="img-circle" ID="imgHead" runat="server" Width="180px" Height="180px" />
        </p>
      </p>
    </p>


    <script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
    <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
  </form>
</body>
</html>

 public partial class getUser : System.Web.UI.Page
  {
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    //获取用户列表
    protected void btnGet_Click(object sender, EventArgs e)
    {
      string next_opid = string.Empty;
      string url = "https://api.weixin.qq.com/cgi-bin/user/get?access_token="+mainArg.get_Token()+"&next_openid=";
      HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
      using (HttpWebResponse response = (HttpWebResponse)req.GetResponse())
      {
        StreamReader sr = new StreamReader(response.GetResponseStream());
        string result = sr.ReadToEnd();
        sr.Close();

        MyTest.Common.Entity.userlist userlist = MyTest.Common.Util.JsonEntityExchange<MyTest.Common.Entity.userlist>.Json2Entity(result);
        //Response.Write(userlist.count + "/"+userlist.data+"/"+userlist.next_openid+"/"+userlist.total);
        ddlopenids.DataSource = userlist.data.openid;
        ddlopenids.DataTextField = "";
        ddlopenids.DataValueField = "";
        ddlopenids.DataBind();
        ListItem item = new ListItem();
        item.Text = "--请选择用户的openID--";
        item.Value = "--0--";
        ddlopenids.Items.Insert(0, item);

      }
    }


    //获取用户基本信息（包括UnionID机制）
    protected void ddlopenids_SelectedIndexChanged(object sender, EventArgs e)
    {
      string url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token="+ mainArg.get_Token() + "&openid="+ddlopenids.SelectedItem.Text+"&lang=zh_CN ";
      HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
      using (HttpWebResponse response = (HttpWebResponse)req.GetResponse())
      {
        StreamReader sr = new StreamReader(response.GetResponseStream());
        string result = sr.ReadToEnd();
        sr.Close();
        MyTest.Common.Entity.userdetail user= MyTest.Common.Util.JsonEntityExchange<MyTest.Common.Entity.userdetail>.Json2Entity(result);

        lblMSG.Text = user.subscribe + "/" + user.openid + "/" + user.nickname + "/";
        imgHead.ImageUrl = user.headimgurl;

      }
    }
  }

mainArg.cs取得accessToken幫助類別：

 public class mainArg
  {
    //测试号
    public static string appid = "wx3eb5bf1290db2ca0";
    public static string secret = "e6013be0a7338c7d3e02877db116e231";

    public string jsapi_ticket;
    public string noncestr;
    public long timestamp;
    public string signature;

    private static string path = HttpContext.Current.Server.MapPath(@"~/TemplePath");
    private static string tokenPath = HttpContext.Current.Server.MapPath(@"~/TemplePath/token.txt");
    private static string ticketPath = HttpContext.Current.Server.MapPath(@"~/TemplePath/ticket.txt");

    public mainArg() {
      noncestr = getNonceStr();
      timestamp = getTime();
    }
    /// <summary>
    /// 获取access_token
    /// </summary>
    /// <returns></returns>
    public static string get_Token()
    {
      string token = null;
      //判断是否存在或过期
      if (File.Exists(tokenPath)) {
        FileStream fs = new FileStream(tokenPath, FileMode.Open);
        var serializer = new DataContractJsonSerializer(typeof(AccToken));
        AccToken readJSToken = (AccToken)serializer.ReadObject(fs);
        fs.Close();
        FileInfo fi = new FileInfo(tokenPath);
        if (CheckTimeOut(fi.LastWriteTime) < (readJSToken.expires_in-200)) {

          return token = readJSToken.access_token;
        }

      }

      string url = @"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&";
      string urlarg = @"appid=" + appid + @"&secret=" + secret;
      //      HttpUtility.UrlEncode(appid,Encoding.GetEncoding("utf-8"));
      url += urlarg;
      HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
      using (WebResponse response = req.GetResponse())
      {
        Stream s = response.GetResponseStream();
        StreamReader sr = new StreamReader(s);
        token = sr.ReadToEnd();

        if (!Directory.Exists(path))
        {
          Directory.CreateDirectory(path);
        }
        if (File.Exists(tokenPath))
        {
          File.Delete(tokenPath);
        }
        FileStream fs = File.Create(tokenPath);
        StreamWriter sw = new StreamWriter(fs);
        sw.Write(token);
        sw.Flush();
        sw.Close();
        fs.Close();
        FileStream fs1 = new FileStream(tokenPath, FileMode.Open);
        var serializer = new DataContractJsonSerializer(typeof(AccToken));
        AccToken readJSToken = (AccToken)serializer.ReadObject(fs1);
        fs1.Close();
        token = readJSToken.access_token;
        return token;
      }

    }
    /// <summary>
    /// 获取ticket
    /// </summary>
    /// <returns></returns>
    public string getTicket() {
      string ticket = null;
      // 判断是否存在或过期
      if (File.Exists(ticketPath))
      {
        FileStream fs = new FileStream(ticketPath, FileMode.Open);
        var serializer = new DataContractJsonSerializer(typeof(JsTicket));
        JsTicket readJSTicket = (JsTicket)serializer.ReadObject(fs);
        fs.Close();
        FileInfo fi = new FileInfo(ticketPath);
        if (CheckTimeOut(fi.LastWriteTime) < (readJSTicket.expires_in - 200))
        {

          return ticket = readJSTicket.ticket;
        }

      }

      string url = @"https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&";
      string urlarg = @"access_token="+get_Token();
      //      HttpUtility.UrlEncode(appid,Encoding.GetEncoding("utf -8"));
      url += urlarg;
      HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
      using (WebResponse response = req.GetResponse())
      {
        Stream s = response.GetResponseStream();
        StreamReader sr = new StreamReader(s);
        ticket = sr.ReadToEnd();

        if (!Directory.Exists(path))
        {
          Directory.CreateDirectory(path);
        }
        if (File.Exists(ticketPath))
        {
          File.Delete(ticketPath);
        }
        FileStream fs = File.Create(ticketPath);
        StreamWriter sw = new StreamWriter(fs);
        sw.Write(ticket);
        sw.Flush();
        sw.Close();
        fs.Close();
        FileStream fs1 = new FileStream(ticketPath, FileMode.Open);
        var serializer = new DataContractJsonSerializer(typeof(JsTicket));
        JsTicket readJSTicket = (JsTicket)serializer.ReadObject(fs1);
        fs1.Close();
        ticket = readJSTicket.ticket;
        return ticket;
      }

    }
    //
    public static long getTime() {
      return Convert.ToInt64((DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalSeconds);
    }
    public static string getTimeString(DateTime dt)
    {
      TimeSpan ts = dt.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0, 0);
      return Convert.ToInt64(ts.TotalSeconds).ToString();
    }
    //获取16位随机字符串
    public static string getNonceStr()
    {
      int length = 16;
      string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
      string str = "";
      Random rad = new Random();
      for (int i = 0; i < length; i++)
      {
        str += chars.Substring(rad.Next(0, chars.Length - 1), 1);
      }
      return str;
    }


    //得到签名
    public string getSign() {

      jsapi_ticket = getTicket();
      string s1 = string.Format("jsapi_ticket={0}&noncestr={1}&timestamp={2}&url=http://winsee.imwork.net/Manager/Main/testjs.aspx", jsapi_ticket, noncestr, timestamp.ToString());     
      signature = GetSHA1(s1);
      return signature;
    }
    public static string GetSHA1(string strSource)
    {
      string strResult = string.Empty;


      System.Security.Cryptography.SHA1 sha = System.Security.Cryptography.SHA1.Create();
      byte[] bytResult = sha.ComputeHash(System.Text.Encoding.UTF8.GetBytes(strSource));
      for (int i = 0; i < bytResult.Length; i++)
      {
        strResult = strResult + bytResult[i].ToString("x2");
      }
      return strResult;
    }
    //SHA1哈希加密算法 
    public static string GetSHA1_1(string str_sha1_in)
    {
      SHA1 sha1 = new SHA1CryptoServiceProvider();
      byte[] bytes_sha1_in = Encoding.Default.GetBytes(str_sha1_in);
      byte[] bytes_sha1_out = sha1.ComputeHash(bytes_sha1_in);
      string str_sha1_out = BitConverter.ToString(bytes_sha1_out);
      str_sha1_out = str_sha1_out.Replace("-", "").ToLower();
      return str_sha1_out;
    }

    // 判断是否超过7200s
    public static long CheckTimeOut(DateTime changeTime)
    {
      return Convert.ToInt64((DateTime.Now - changeTime).TotalSeconds);

    }



  }


 # region 创建Json序列化 及反序列化类目 
  //创建JSon类 保存文件 ticket.txt
  public class AccToken
  {

    public string access_token { get; set; }
    public long expires_in { get; set; }
  }

  //创建从微信返回结果的一个类 用于获取ticket 
  public class JsTicket
  {

    public long errcode { get; set; }
    public string errmsg { get; set; }
    public string ticket { get; set; }
    public long expires_in { get; set; }
  }
  #endregion

JSon序列化，反序列化

public class JsonEntityExchange<T> where T:new()
  {
    /// <summary>
    /// json转实体LIST
    /// </summary>
    /// <param name="JsonStr"></param>
    /// <returns></returns>
    public static List<T> Json2Entitys(string JsonStr)
    {
      JavaScriptSerializer Serializer = new JavaScriptSerializer();
      List<T> objs = Serializer.Deserialize<List<T>>(JsonStr);
      return objs;
    }
    /// <summary>
    /// json转实体
    /// </summary>
    /// <param name="json"></param>
    /// <returns></returns>
    public static T Json2Entity(string json)
    {
      T obj = Activator.CreateInstance<T>();
      using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json)))
      {
        DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
        return (T)serializer.ReadObject(ms);
      }
    }
    /// <summary>
    /// 实体转json
    /// </summary>
    /// <param name="lists">实体list</param>
    /// <returns></returns>
    public static string Entity2Json(List<T> lists) {

      return new JavaScriptSerializer().Serialize(lists);
    }
  }

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