asp.net微信开发（已关注用户管理）

网络编程 2024/11/1 佚名

3 2 1

帝王谷资源网 Design By www.wdxyy.com

公众号可通过本接口来获取帐号的关注者列表，关注者列表由一串OpenID（加密后的微信号，每个用户对每个公众号的OpenID是唯一的）组成。一次拉取调用最多拉取10000个关注者的OpenID，可以通过多次拉取的方式来满足需求。

接口调用请求说明

http请求方式: GET（请使用https协议）

返回说明

正确时返回JSON数据包：

错误时返回JSON数据包（示例为无效AppID错误）：

{"errcode":40013,"errmsg":"invalid appid"}
附：关注者数量超过10000时

当公众号关注者数量超过10000时，可通过填写next_openid的值，从而多次拉取列表的方式来满足需求。

具体而言，就是在调用接口时，将上一次调用得到的返回中的next_openid值，作为下一次调用中的next_openid值。

示例如下：

公众账号A拥有23000个关注的人，想通过拉取关注接口获取所有关注的人，那么分别请求url如下：
https://api.weixin.qq.com/cgi-bin/user/get"htmlcode">

{
 "total":23000,
 "count":10000,
 "data":{"
 openid":[
 "OPENID1",
 "OPENID2",
 ...,
 "OPENID10000"
 ]
 },
 "next_openid":"OPENID10000"
}

https://api.weixin.qq.com/cgi-bin/user/get"htmlcode">

{
 "total":23000,
 "count":10000,
 "data":{
 "openid":[
 "OPENID10001",
 "OPENID10002",
 ...,
 "OPENID20000"
 ]
 },
 "next_openid":"OPENID20000"
}

https://api.weixin.qq.com/cgi-bin/user/get"htmlcode">

{
 "total":23000,
 "count":3000,
 "data":{"
 "openid":[
  "OPENID20001",
  "OPENID20002",
  ...,
  "OPENID23000"
 ]
 },
 "next_openid":"OPENID23000"
}

微信官方网站后台的接口权限表里（以服务号为例）每天调用的获取用户列表能获取500次，获取用户基本信息可以获取500000次，所以说接下来，我在获取用户列表的时候，会用到缓存，别看500次不少了，
可是真正的用起来快得不得了，先上效果图如下：

先来看看用户列表，官网说获取用户的列表返回的是一组组openID，针对这个特性，我是这么做的，
创建一个用于存储openId的类

public class WxOpenIdInfo
 {
 public string WxopenId { get; set; }//用户存放微信用户的openId
 }

然后再创建用户信息的基本类

 /// <summary>
 /// 微信用户基本信息类
 /// </summary>
 public class WxUserInfo
 {
 public int subscribe { get; set; }//关注状态

 public string openid { get; set; }//OpenID

 public string nickname { get; set; }//昵称

 public string sex { get; set; }//性别

 public string city { get; set; }//城市

 public string province { get; set; }//省份

 public string headimgurl { get; set; }//头像图片地址

 public string subscribe_time { get; set; }//关注时间

 public string remark { get; set; }//备注

 public string groupid { get; set; }//分组ID

 }

用户列表前台代码

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WeiXinUserList.aspx.cs" Inherits="DQWebSite.Administrator.WeiXinUserList" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
 <title></title>
 <link href="css/style.css" rel="Stylesheet" type="text/css" />
 <style type="text/css">
 #title {width:100%; height:40px;margin-top:10px; text-indent:5px; line-height:40px;}
 .checkstyle { float:left;}
 #DDlAddgroups { text-align:center; width:161px; border:1px solid #d9d9d9; border-radius:5px; height:35px; line-height:35px; font-weight:bold; text-align:center; float:left; margin:auto 5px auto 5px;}
 .DDlAddgroups{ text-align:center; width:161px; border:1px solid #d9d9d9; border-radius:5px; height:35px; line-height:35px; font-weight:bold; text-align:center; float:left; margin:auto 5px auto 5px;}
 #DDLgroups { text-align:center; width:111px; border:1px solid #d9d9d9; border-radius:5px; height:35px; line-height:35px; font-weight:bold; text-align:center; float:left; margin:auto 5px auto 5px;}
 .newGroups { margin:auto 5px auto 5px;}
 .inputstyle { height:35px; line-height:35px; text-indent:5px; width:280px;background-image:url('images/inputbg.gif'); background-repeat:repeat-x;border-top:solid 1px #a7b5bc; border-left:solid 1px #a7b5bc; border-right:solid 1px #ced9df; border-bottom:solid 1px #ced9df; float:left; margin:auto 5px auto 5px;
 }
 .wxusertab { border:1px solid #d9d9d9; width:100%; text-align:left; text-indent:5px;
 } 
 
 th { height:35px;background-image:url('images/th.gif'); background-repeat:repeat-x;
 }
 td {
  border-bottom:1px solid #d9d9d9;
 }
 .trcolor { background-color:#ecd9df;
 }
 tr:hover { cursor:pointer; 
 }
  #FenPage { width:1124px; height:25px; line-height:25px; text-align:center; margin:20px auto 20px auto;
 }
 .linka { color:#0094ff; cursor:pointer;
 }
 .fenyebtn {width:60px; height:25px; border:1px solid #ced9df; border-radius:5px; text-align:center; line-height:25px; float:right;
 }
 .fenyebtn2 { width:60px; height:25px; border:1px solid #ced9df; border-radius:5px; text-align:center; line-height:25px;margin-left:10px;float:right;
 }
 .toPageIndex { width:60px;height:25px; background-image:url('images/inputbg.gif'); margin-left:10px; background-repeat:repeat-x;border-top:solid 1px #a7b5bc; border-left:solid 1px #a7b5bc; border-right:solid 1px #ced9df; border-bottom:solid 1px #ced9df; text-align:center; float:right;
 }
 .gotoPagebtn { width:60px; height:25px; border:1px solid #ced9df; border-radius:5px; text-align:center; line-height:25px;margin-left:10px;float:right; background-color:#ced9df;
 }
 .deletebtn {float:left;width:100px; color:#000; height:25px; background-color:#ced9df; border:1px solid #ced9df; border-radius:5px; text-align:center;
 }
 a { color:#08a5e0;
 }
 .droplist { background-image:url('images/inputbg.gif'); background-repeat:repeat-x; width:120px; height:25px; border:1px solid #ced9df;
 }
 .checkstyle { float:left;
 }
 .imgheadstyle { width:50px; height:50px; margin-top:10px;
 }
 .lbsubscribeCount { font-size:26px;
 }

 #shownewgroup { width:300px; height:200px; background-color:white;z-index:9999; border:2px solid #DDD; top:40%; left:40%; background-color:#fff; position:fixed;margin:-100px auto auto -100px; display:none;
 }
 #shownewgroupzhezhaoceng { height:200%; width:200%; left:0px; top:0px;position:fixed; z-index:9998; background:rgb(50,50,50);background:rgba(0,0,0,0.5); display:none;
 }
 .closeLogin { height:30px; border-bottom:2px solid #31bb34; text-align:right; line-height:30px; font-size:14px; font-weight:bold;
 }
 a:hover { cursor:pointer;
 }


 #updateremark { width:300px; height:200px; background-color:white;z-index:9999; border:2px solid #DDD; top:40%; left:40%; background-color:#fff; position:fixed;margin:-100px auto auto -100px; display:none;
 }
 #updateremark_zhezhaoceng { height:100%; width:100%; left:0px; top:0px;position:fixed; z-index:9998; background:rgb(50,50,50);background:rgba(0,0,0,0.5); display:none;
 }

 </style>

 <script src="/UploadFiles/2021-04-02/jquery-1.7.1.min.js">

获取用户列表绑定用户信息的后台代码，已包括，修改备注名，将用户移动到分组，新建分组代码

分组统计，用于显示每个分组的已存在人数，无其他作用
上代码：




 PagedDataSource pds = new PagedDataSource();
 protected void Page_Load(object sender, EventArgs e)
 {
  if(!Page.IsPostBack)
  {
  BindGroupList();
  BindGetAllUserOpenIdList();
  this.DataBind();
  this.CheckAll.AutoPostBack = true;
  this.DDlAddgroups.AutoPostBack = true;
  }
  //this.DDlAddgroups.Enabled = false;
  
 }
 /// <summary>
 /// 获取所有用户的openId列表
 /// </summary>
 private void BindGetAllUserOpenIdList()
 {
  WeiXinServer wxs = new WeiXinServer();

  ///从缓存读取accesstoken
  string Access_token = Cache["Access_token"] as string;

  if (Access_token == null)
  {
  //如果为空，重新获取
  Access_token = wxs.GetAccessToken();

  //设置缓存的数据7000秒后过期
  Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);

  string jsonres = "";

  string content = Cache["AllUserOpenList_content"] as string;

  if (content == null)
  {
  jsonres = "https://api.weixin.qq.com/cgi-bin/user/get" + Access_tokento;

  HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(jsonres);
  myRequest.Method = "GET";
  HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
  StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
  content = reader.ReadToEnd();
  reader.Close();

  //设置缓存的数据7000秒后过期
  Cache.Insert("AllUserOpenList_content", content, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  //使用前需要引用Newtonsoft.json.dll文件
  JObject jsonObj = JObject.Parse(content);


  int totalnum = int.Parse(jsonObj["count"].ToString());


  List<WxOpenIdInfo> openidlist = new List<WxOpenIdInfo>();


  for (int i = 0; i < totalnum;i++ )
  {
  WxOpenIdInfo wxopeninfo = new WxOpenIdInfo();
  wxopeninfo.WxopenId = jsonObj["data"]["openid"][i].ToString();
  openidlist.Add(wxopeninfo);
  }


  pds.DataSource = openidlist;
  pds.AllowPaging = true;
  pds.PageSize = 20;//每页显示为20条
  int CurrentPage;


  if (!String.IsNullOrWhiteSpace(this.txtPageIndex.Text.ToString().Trim()))
  {

  CurrentPage = Convert.ToInt32(this.txtPageIndex.Text.ToString().Trim());
  }
  else if (Request.QueryString["Page"] != null)
  {
  CurrentPage = Convert.ToInt32(Request.QueryString["Page"]);
  }
  else
  {
  CurrentPage = 1;
  }
  pds.CurrentPageIndex = CurrentPage - 1;//当前页的索引就等于当前页码-1；
  if (!pds.IsFirstPage)
  {
  //Request.CurrentExecutionFilePath 为当前请求的虚拟路径
  this.lnkTop.NavigateUrl = Request.CurrentExecutionFilePath + "" + Convert.ToString(CurrentPage - 1);
  this.lnkFist.Enabled = this.lnkTop.Enabled = true;
  this.lnkNext.Enabled = this.lnkLast.Enabled = true;
  }
  else
  {
  this.lnkFist.Enabled = this.lnkTop.Enabled = false;
  this.lnkNext.Enabled = this.lnkLast.Enabled = true;
  this.lnkFist.Attributes.Add("style", "color:#ced9df;");
  this.lnkTop.Attributes.Add("style", "color:#ced9df;");
  this.lnkNext.Attributes.Remove("style");
  this.lnkLast.Attributes.Remove("style");
  }
  if (!pds.IsLastPage)
  {
  //Request.CurrentExecutionFilePath 为当前请求的虚拟路径
  this.lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + "" + Convert.ToString(CurrentPage + 1);
  this.lnkFist.Enabled = this.lnkTop.Enabled = true;
  this.lnkNext.Enabled = this.lnkLast.Enabled = true;
  }
  else
  {
  this.lnkNext.Enabled = this.lnkLast.Enabled = false;
  this.lnkFist.Enabled = this.lnkTop.Enabled = true;
  this.lnkNext.Attributes.Add("style", "color:#ced9df;");
  this.lnkLast.Attributes.Add("style", "color:#ced9df;");
  this.lnkFist.Attributes.Remove("style");
  this.lnkTop.Attributes.Remove("style");
  }
  this.lnkFist.NavigateUrl = Request.CurrentExecutionFilePath + "" + Convert.ToString(1);//跳转至首页
  this.lnkLast.NavigateUrl = Request.CurrentExecutionFilePath + "" + Convert.ToString(pds.PageCount);//跳转至末页

  this.RepeaterWxUserList.DataSource = pds;
  this.RepeaterWxUserList.DataBind();

  this.lbCountData.Text = openidlist.Count.ToString();
  this.lbPageIndex.Text = (pds.CurrentPageIndex + 1).ToString();
  this.lbPageSize.Text = "每页" + pds.PageSize.ToString() + "条记录";
  this.lbCountPage.Text = pds.PageCount.ToString();
  this.txtPageIndex.Text = (pds.CurrentPageIndex + 1).ToString();

  if (int.Parse(openidlist.Count.ToString()) <= int.Parse(pds.PageSize.ToString()))
  {
  this.lnkFist.Visible = this.lnkTop.Visible = this.lnkNext.Visible = this.lnkLast.Visible = this.txtPageIndex.Visible = this.LinkBtnToPage.Visible = false;
  }
  else
  {
  this.lnkFist.Visible = this.lnkTop.Visible = this.lnkNext.Visible = this.lnkLast.Visible = this.txtPageIndex.Visible = this.LinkBtnToPage.Visible = true;
  }

  this.lbsubscribeCount.Text = openidlist.Count.ToString();
 }
 /// <summary>
 /// 绑定分组列表
 /// </summary>
 private void BindGroupList()
 {
  WeiXinServer wxs = new WeiXinServer();

  ///从缓存读取accesstoken
  string Access_token = Cache["Access_token"] as string;

  if (Access_token == null)
  {
  //如果为空，重新获取
  Access_token = wxs.GetAccessToken();

  //设置缓存的数据7000秒后过期
  Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);

  string jsonres = "";

  string content = Cache["AllGroups_content"] as string;

  if (content == null)
  {
  jsonres = "https://api.weixin.qq.com/cgi-bin/groups/get" + Access_tokento;

  HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(jsonres);
  myRequest.Method = "GET";
  HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
  StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
  content = reader.ReadToEnd();
  reader.Close();

  //设置缓存的数据7000秒后过期
  Cache.Insert("AllGroups_content", content, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  //使用前需要引用Newtonsoft.json.dll文件
  JObject jsonObj = JObject.Parse(content);


  int groupsnum = jsonObj["groups"].Count();

  this.DDLgroups.Items.Clear();//清除
  this.DDlAddgroups.Items.Clear();
  this.DDLgroups.Items.Insert(0, new ListItem("分组统计", "0"));//添加默认第一个提示
  this.DDlAddgroups.Items.Insert(0, new ListItem("移动用户到分组", "0"));
  for (int i = 0; i < groupsnum; i++)
  {
  this.DDLgroups.Items.Add(new ListItem(jsonObj["groups"][i]["name"].ToString() + "(" + jsonObj["groups"][i]["count"].ToString() + ")", jsonObj["groups"][i]["id"].ToString()));
  
  this.DDlAddgroups.Items.Add(new ListItem(jsonObj["groups"][i]["name"].ToString(), jsonObj["groups"][i]["id"].ToString()));
  }
 }
 /// <summary>
 /// 输入页码提交跳转
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void LinkBtnToPage_Click(object sender, EventArgs e)
 {

  if (String.IsNullOrWhiteSpace(this.txtPageIndex.Text.ToString().Trim()))
  {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('页码不能为空！')", true);
  this.txtPageIndex.Focus();
  return;
  }
  if (IsNum(this.txtPageIndex.Text.ToString().Trim()))
  {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('页码数只能输入数字！')", true);
  this.txtPageIndex.Focus();
  this.txtPageIndex.Text = this.lbPageIndex.Text.ToString();
  return;
  }
  if (int.Parse(this.txtPageIndex.Text.ToString().Trim()) > int.Parse(this.lbCountPage.Text.ToString().Trim()))
  {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('所输页数不能大于总页数！')", true);
  this.txtPageIndex.Focus();
  this.txtPageIndex.Text = this.lbPageIndex.Text.ToString();
  return;
  }

  BindGetAllUserOpenIdList();
 }
 /// <summary>
 /// 判断是否是数字
 /// </summary>
 /// <param name="text"></param>
 /// <returns></returns>
 public static bool IsNum(string text) //
 {
  for (int i = 0; i < text.Length; i++)
  {
  if (!Char.IsNumber(text, i))
  {
   return true; //输入的不是数字 
  }
  }
  return false; //否则是数字
 }
 /// <summary>
 /// 绑定用户基本信息事件
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void RepeaterWxUserList_ItemDataBound(object sender, RepeaterItemEventArgs e)
 {
  //CheckBox checkIn = e.Item.FindControl("CheckIn") as CheckBox;

  //checkIn.AutoPostBack = true;


  if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
  {
  WxOpenIdInfo wxopen = e.Item.DataItem as WxOpenIdInfo;


  Label lbwxopenID = e.Item.FindControl("lbwxopenID") as Label;

  lbwxopenID.Text = wxopen.WxopenId.ToString();

  //根据OpenID获取用户基本信息。缓存处理
  WeiXinServer wxs = new WeiXinServer();

  ///从缓存读取accesstoken
  string Access_token = Cache["Access_token"] as string;

  if (Access_token == null)
  {
   //如果为空，重新获取
   Access_token = wxs.GetAccessToken();

   //设置缓存的数据7000秒后过期
   Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);

  string jsonres ="https://api.weixin.qq.com/cgi-bin/user/info" + Access_tokento + "&openid=" + lbwxopenID.Text.ToString();

  HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(jsonres);
  myRequest.Method = "GET";
  HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
  StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
  string content = reader.ReadToEnd();
  reader.Close();

  //使用前需要引用Newtonsoft.json.dll文件
  JObject jsonObj = JObject.Parse(content);


  Image ImgHeadUrl = e.Item.FindControl("ImgHeadUrl") as Image;
  Label lbNickName = e.Item.FindControl("lbNickName") as Label;
  Label lbRemark = e.Item.FindControl("lbRemark") as Label;
  Label lbSubscrine_time = e.Item.FindControl("lbSubscrine_time") as Label;

  Label lbgroupId = e.Item.FindControl("lbgroupId") as Label;

  DropDownList DDlAddgroupss = e.Item.FindControl("DDlAddgroupss") as DropDownList;

  lbNickName.Text = jsonObj["nickname"].ToString();

  if (!String.IsNullOrWhiteSpace(jsonObj["remark"].ToString()))
  {
   lbRemark.Text = "(" + jsonObj["remark"].ToString() + ")";
  }

  ImgHeadUrl.ImageUrl = jsonObj["headimgurl"].ToString();
  lbgroupId.Text = jsonObj["groupid"].ToString();

  //获取关注时间
  int totaltiem = int.Parse(jsonObj["subscribe_time"].ToString());
  //将整型格式时间转换为时间格式
  DateTime t = new DateTime(1970, 1, 1).AddSeconds(totaltiem);
  //转换后的时间会比原有时间小8个小时，因此需要加上8个小时
  lbSubscrine_time.Text = t.AddHours(8).ToString();


  string jjjjjjjjjddd = Cache["AllGroups_content"] as string;

  if (jjjjjjjjjddd == null)
  {
   jsonres = "https://api.weixin.qq.com/cgi-bin/groups/get" + Access_tokento;

   HttpWebRequest myRequestss = (HttpWebRequest)WebRequest.Create(jsonres);
   myRequest.Method = "GET";
   HttpWebResponse myResponsess = (HttpWebResponse)myRequest.GetResponse();
   StreamReader readerss = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
   jjjjjjjjjddd = reader.ReadToEnd();
   reader.Close();

   //设置缓存的数据7000秒后过期
   Cache.Insert("AllGroups_content", jjjjjjjjjddd, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  //使用前需要引用Newtonsoft.json.dll文件
  JObject jsonObjss = JObject.Parse(jjjjjjjjjddd);


  int groupsnumss = jsonObjss["groups"].Count();

  for (int i = 0; i < groupsnumss;i++ )
  {
   if (jsonObjss["groups"][i]["id"].ToString().Equals(lbgroupId.Text.ToString()))
   {
   DDlAddgroupss.SelectedItem.Text = jsonObjss["groups"][i]["name"].ToString();
   }
  }

  }
 }
 /// <summary>
 /// 创建分组
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void LinkBtnCreateGroup_Click(object sender, EventArgs e)
 {
  if (this.txtgroupsName.Value.ToString().Equals("分组名称"))
  {
  ////
  ScriptManager.RegisterClientScriptBlock(this.Page,this.GetType(),"","alert('不能为空！')",true);
  this.txtgroupsName.Focus();
  return;
  }


  WeiXinServer wxs = new WeiXinServer();
  string res = "";

  ///从缓存读取accesstoken
  string Access_token = Cache["Access_token"] as string;

  if (Access_token == null)
  {
  //如果为空，重新获取
  Access_token = wxs.GetAccessToken();

  //设置缓存的数据7000秒后过期
  Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);


  string posturl = "https://api.weixin.qq.com/cgi-bin/groups/create" + Access_tokento;

  //string postData = "{\"group\":{\"name\":\""+this.txtgroupsName.Value.ToString().Trim()+"\"}}";

  string postData = "{\"group\":{\"name\":\""+this.txtgroupsName.Value.ToString().Trim()+"\"}}";


  res = wxs.GetPage(posturl, postData);


  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('创建成功！如未显示，请退出重新登录即可！');location='WeiXinUserList.aspx';", true);
 }
 /// <summary>
 /// 全选、全不选
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void CheckAll_CheckedChanged(object sender, EventArgs e)
 {
  CheckBox checkAll = (CheckBox)sender;
  foreach (RepeaterItem item in this.RepeaterWxUserList.Items)
  {
  CheckBox checkIn = (CheckBox)item.FindControl("CheckIn");
  checkIn.Checked = checkAll.Checked;
  }
 }

 /// <summary>
 /// 移动用户到分组
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void DDlAddgroups_SelectedIndexChanged(object sender, EventArgs e)
 {
  ///取得分组ID
  string groupId = this.DDlAddgroups.SelectedValue.ToString();

  //this.Label1.Text = groupId.ToString();

  Boolean bools = false;

  foreach (RepeaterItem item in this.RepeaterWxUserList.Items)
  {
  CheckBox checkIn = (CheckBox)item.FindControl("CheckIn");

  if (checkIn.Checked)
  {
   bools = true;

   Label lbwxopenID = item.FindControl("lbwxopenID") as Label;


   WeiXinServer wxs = new WeiXinServer();
   string res = "";

   ///从缓存读取accesstoken
   string Access_token = Cache["Access_token"] as string;

   if (Access_token == null)
   {
   //如果为空，重新获取
   Access_token = wxs.GetAccessToken();

   //设置缓存的数据7000秒后过期
   Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
   }

   string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);


   string posturl = "https://api.weixin.qq.com/cgi-bin/groups/members/update" + Access_tokento;


   //POST数据例子：{"openid":"oDF3iYx0ro3_7jD4HFRDfrjdCM58","to_groupid":108}
   //string postData = "{\"openid\":\"" + openid.ToString().Trim() + "\",\"remark\":\"" + this.txtRemarkName.Value.ToString() + "\"}";

   string postData = "{\"openid\":\"" + lbwxopenID.Text.ToString() + "\",\"to_groupid\":\"" + groupId.ToString() + "\"}";


   res = wxs.GetPage(posturl, postData);


   //使用前需要引用Newtonsoft.json.dll文件
   JObject jsonObj = JObject.Parse(res);

   ///获取返回结果的正确|true|false,
   string isright = jsonObj["errcode"].ToString();//0
   string istrueorfalse = jsonObj["errmsg"].ToString();//ok
   if (isright.Equals("0") && istrueorfalse.Equals("ok"))
   {
   ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('移动用户成功！');location='WeiXinUserList.aspx';", true);
   }
   else
   {
   ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('移动用户失败！');", true);
   return;
   }
  }

  }
  if (!bools)
  {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('未选中项！');location='WeiXinUserList.aspx';", true);
  return;
  }
 }




 WeiXinServer wxs = new WeiXinServer();是单独创建的一个类，主要用来获取通行证和加载流的方法，代码如下：




 /// <summary>
 /// 微信服务类
 /// </summary>
 public class WeiXinServer
 {
 /// <summary>
 /// 获取通行证
 /// </summary>
 /// <returns></returns>
 public string GetAccessToken()
 {
  string url_token = "https://api.weixin.qq.com/cgi-bin/token";
  HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url_token);
  myRequest.Method = "GET";
  HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
  StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
  string content = reader.ReadToEnd();
  reader.Close();
  return content;
 }
 public string GetPage(string p, 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(p) 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;
  }
 }
 }



修改备注页面的代码：




 protected void Page_Load(object sender, EventArgs e)
 {
  if(Request.QueryString["id"]!=null)
  {
  String openid = Request.QueryString["id"].ToString();
  this.txtOpenId.Value = openid.ToString();

  //根据OpenID获取用户基本信息。缓存处理
  WeiXinServer wxs = new WeiXinServer();

  ///从缓存读取accesstoken
  string Access_token = Cache["Access_token"] as string;

  if (Access_token == null)
  {
   //如果为空，重新获取
   Access_token = wxs.GetAccessToken();

   //设置缓存的数据7000秒后过期
   Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);

  string jsonres = "https://api.weixin.qq.com/cgi-bin/user/info" + Access_tokento + "&openid=" + openid;

  HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(jsonres);
  myRequest.Method = "GET";
  HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
  StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
  string content = reader.ReadToEnd();
  reader.Close();

  //使用前需要引用Newtonsoft.json.dll文件
  JObject jsonObj = JObject.Parse(content);

 　　　　　　 //假如备注名不为空，给备注名文本框赋值，显示原有的备注名
  if (!String.IsNullOrWhiteSpace(jsonObj["remark"].ToString()))
  {
   this.txtRemarkName.Value = jsonObj["remark"].ToString();
  }

  }
 }
 /// <summary>
 /// 设置备注名
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void LinkBtnSet_Click(object sender, EventArgs e)
 {
  

  String openid = Request.QueryString["id"].ToString();

  WeiXinServer wxs = new WeiXinServer();
  string res = "";

  ///从缓存读取accesstoken
  string Access_token = Cache["Access_token"] as string;

  if (Access_token == null)
  {
  //如果为空，重新获取
  Access_token = wxs.GetAccessToken();

  //设置缓存的数据7000秒后过期
  Cache.Insert("Access_token", Access_token, null, DateTime.Now.AddSeconds(7000), System.Web.Caching.Cache.NoSlidingExpiration);
  }

  string Access_tokento = Access_token.Substring(17, Access_token.Length - 37);


  string posturl = "https://api.weixin.qq.com/cgi-bin/user/info/updateremark" + Access_tokento;

  string postData = "{\"openid\":\"" + openid.ToString().Trim() + "\",\"remark\":\"" + this.txtRemarkName.Value.ToString() + "\"}";


  res = wxs.GetPage(posturl, postData);


  //使用前需药引用Newtonsoft.json.dll文件
  JObject jsonObj = JObject.Parse(res);

  ///获取返回结果的正确|true|false,
  string isright = jsonObj["errcode"].ToString();//0
  string istrueorfalse = jsonObj["errmsg"].ToString();//ok
  if (isright.Equals("0") && istrueorfalse.Equals("ok"))
  {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('修改备注成功！');location='WeiXinUserList.aspx';", true);
  }
  else
  {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('修改备注失败！');", true);
  }

 }



本文已被整理到了《ASP.NET微信开发教程汇总》，欢迎大家学习阅读。
以上就是已关注用户管理的全部核心代码，仅供参考，希望对大家的学习有所帮助。