如何使用.NET查看微信公众号关注者接口，针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
实体类:
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代码:
<%@ 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">
<div class="container">
<div class="row">
<div 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" />
</div>
<div 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" />
</div>
</div>
</div>
<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获取accessToken帮助类：
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}×tamp={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; }
}
#endregionJSon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);
}
}结果如图:
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