asp.net微信开发中如何管理已关注用户

本篇内容主要讲解"asp.net微信开发中如何管理已关注用户"，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习"asp.net微信开发中如何管理已关注用户"吧!

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?access_token=ACCESS_TOKEN
返回结果:

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

https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN&next_openid=NEXT_OPENID1
返回结果:

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

https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN&next_openid=NEXT_OPENID2
返回结果（关注者列表已返回完时，返回next_openid为空）:

{ "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

 /// 
 /// 微信用户基本信息类 /// 
 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" %>      
 
  位置：  
   
首页
   
微信管理
   
德桥员工服务中心--关注者列表管理
  
 
         
   
新建分组关闭  
  
  30字符以内
    
 确定创建   
   
  
已关注人数 
  
  全选             
 + 新建分组  
分组管理  
刷  新<%--    
 查询--%> 
         
 
   
   
OpenID
   
头像
   
昵称（备注名）
   
关注时间
   
所属分组
   
操作
  
    
    
   <%--OnCheckedChanged="CheckIn_CheckedChanged"--%>
    
    
    
 
    
        
    
        
    
             分组名称        
    
    
 修改备注名称    
   
     
  
  确定     >>|   >    <   |<<   当前第    页/  共    页    共搜索到     条记录.  
    

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;   } /// 
 /// 获取所有用户的openId列表 /// 
 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_token=" + 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 openidlist = new List();  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 + "?Page=" + 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 + "?Page=" + 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 + "?Page=" + Convert.ToString(1);//跳转至首页  this.lnkLast.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + 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(); } /// 
 /// 绑定分组列表 /// 
 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_token=" + 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()));  } } /// 
 /// 输入页码提交跳转 /// 
 ///  ///  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(); } /// 
 /// 判断是否是数字 /// 
 ///  ///  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 } /// 
 /// 绑定用户基本信息事件 /// 
 ///  ///  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_token=" + 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_token=" + 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();   }  }  } } /// 
 /// 创建分组 /// 
 ///  ///  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_token=" + 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); } /// 
 /// 全选、全不选 /// 
 ///  ///  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;  } } /// 
 /// 移动用户到分组 /// 
 ///  ///  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_token=" + 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：

 /// 
 /// 微信服务类 /// 
 public class WeiXinServer { /// 
 /// 获取通行证 /// 
 ///  public string GetAccessToken() {  string url_token = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=此处应该填写公众的appid&secret=此处应该填写公众号的secret";  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_token=" + 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();  }  } } /// 
 /// 设置备注名 /// 
 ///  ///  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_token=" + 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);  } }

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