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asp.net微信开发(高级群发图文)

时间:2019-12-28 13:51     来源/作者:将哥

上一篇介绍了如何群发文本消息,本篇将介绍如何群发图文信息,上传图文信息所需的素材,界面如下:

asp.net微信开发(高级群发图文)

我们先看从素材库中获取图文素材的代码,界面:

asp.net微信开发(高级群发图文)

素材列表,我是使用的repeater控件,

前台代码如下:

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<!--弹出选择素材窗口-->
 <div id="shownewgroup">
 <div class="closeLogin" style="height:40px; background-color:#ddd9ff; line-height:40px;"><span style="float:left; color:#000; font-size:14px; text-indent:5px;">选择素材</span>
 <span style="float:left;margin-left:20px;"><a href="WxNewTuWen.aspx" style="color:red;" onclick="hrefurl();" class="hrefurl">新建图文素材</a></span>
 <a class="closeloginpage"><img src="images/close1.png" alt="" /></a>  </div>
 
 <div style="height:455px; width:100%;">
 <asp:UpdatePanel ID="UpdatePanel2" runat="server">
  <ContentTemplate>
   <div style="width:100%; height:35px; margin:10px;"><asp:LinkButton ID="LinkBtnSelect" runat="server" OnClick="LinkBtnSelect_Click" ><div style="background-image:url('images/buttonbg.png'); width:111px; height:35px; float:left; line-height:35px; font-weight:bold; text-align:center;color:#fff;">确认选择</div></asp:LinkButton>
   <span style="float:left;margin-left:20px;"><asp:LinkButton ID="LinkbtnRefresh" CssClass="LinkbtnRefresh" runat="server" OnClick="LinkbtnRefresh_Click"><div style="background-image:url('images/buttonbg.png'); width:111px; height:35px; line-height:35px; font-weight:bold; text-align:center;color:#fff;">刷新</div></asp:LinkButton></span>
   <span style="float:left;margin-left:20px;"><asp:LinkButton ID="LinkBtnDelete" CssClass="LinkbtnRefresh" runat="server" OnClick="LinkBtnDelete_Click"><div style="background-image:url('images/buttonbg.png'); width:111px; height:35px; line-height:35px; font-weight:bold; text-align:center;color:#fff;">删除素材</div></asp:LinkButton></span>
   </div>
 <div style="word-wrap:break-word;" id="lbnewssucai" runat="server">
  <asp:Repeater ID="Repeatersucailist" runat="server" OnItemDataBound="Repeatersucailist_ItemDataBound">
  <ItemTemplate>
   <table style="width:100%; border-top:1px solid #edc9df; border-collapse:collapse; font-size:12px;" >
   <tr>
    <td style="width:100px;"><asp:Image ID="ImageUrl" CssClass="fenmianstyle2" runat="server" /></td>
    <td style="text-align:left; width:470px; ">
    <asp:Repeater ID="Repeatersucailist2" runat="server">
     <ItemTemplate>
     <ul style="margin:0px;padding:0px;">
      <li><%# Eval("title") %></li>
     </ul>
     </ItemTemplate>
    </asp:Repeater>
    </td>
    <td style="width:130px;">
    <asp:Label ID="lbUpate_time" runat="server" Text="Label"></asp:Label>
    </td>
    <td style="width:50px; text-align:center;">
    <asp:CheckBox ID="CheckIn" runat="server" />
    <asp:Label ID="lbmedia_id" runat="server" Visible="false" Text=""></asp:Label>
    </td>
   </tr>
   </table>
  </ItemTemplate>
  </asp:Repeater>
  <div style="font-size:14px; height:30px; line-height:30px; text-indent:10px; border-top:1px solid #ced9df;">
  <span style="float:left;">本类型素材总数量为:</span><span style="float:left; color:red;"><asp:Label ID="lbtotal_count" runat="server" Text="0"></asp:Label></span>  
  <span style="float:left; margin-left:20px;">本次获取的素材数量为:</span><span style="float:left; color:red;"><asp:Label ID="lbitem_count" runat="server" Text="0"></asp:Label></span>
  </div>
 </div>
  </ContentTemplate>
 </asp:UpdatePanel>
 </div>
</div>
<div id="shownewgroupzhezhaoceng"></div>

后台代码如下:

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/// <summary>
/// 绑定图文素材列表
/// </summary>
private void BindNewsSucaiList()
{
 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/material/batchget_material?access_token=" + Access_tokento;
 
 
 //POST数据例子: POST数据例子:{"type":TYPE,"offset":OFFSET,"count":COUNT}
 
 string postData = "{\"type\":\"news\",\"offset\":\"0\",\"count\":\"20\"}";
 
 res = wxs.GetPage(posturl, postData);
 
 //使用前需要引用Newtonsoft.json.dll文件
 JObject jsonObj = JObject.Parse(res);
 
 int groupsnum = jsonObj["item"].Count();
 
 List<WxNewsSucaiIteminfo> newssucaiitemlist = new List<WxNewsSucaiIteminfo>();
 List<WxNewsSuCaiItemlistinfo> WxNewsSuCaiItemlist = new List<WxNewsSuCaiItemlistinfo>();
 for (int i = 0; i < groupsnum; i++)
 {
 WxNewsSucaiIteminfo newssucaiitem = new WxNewsSucaiIteminfo();
 newssucaiitem.media_id = jsonObj["item"][i]["media_id"].ToString();
 newssucaiitem.update_time = jsonObj["item"][i]["update_time"].ToString();
 newssucaiitem.total_count = jsonObj["total_count"].ToString();
 newssucaiitem.item_count = jsonObj["item_count"].ToString();
 
 newssucaiitemlist.Add(newssucaiitem);
 int news_itemcount = jsonObj["item"][i]["content"]["news_item"].Count();
 if (news_itemcount > 0)
 {
  for (int j = 0; j < news_itemcount; j++)
  {
  WxNewsSuCaiItemlistinfo wnscilinfo = new WxNewsSuCaiItemlistinfo();
  wnscilinfo.title = jsonObj["item"][i]["content"]["news_item"][j]["title"].ToString();
  wnscilinfo.thumb_media_id = jsonObj["item"][i]["content"]["news_item"][j]["thumb_media_id"].ToString();
  wnscilinfo.show_cover_pic = int.Parse(jsonObj["item"][i]["content"]["news_item"][j]["show_cover_pic"].ToString());
  wnscilinfo.author = jsonObj["item"][i]["content"]["news_item"][j]["author"].ToString();
  wnscilinfo.digest = jsonObj["item"][i]["content"]["news_item"][j]["digest"].ToString();
  wnscilinfo.content = jsonObj["item"][i]["content"]["news_item"][j]["content"].ToString();
  wnscilinfo.url = jsonObj["item"][i]["content"]["news_item"][j]["url"].ToString();
  wnscilinfo.content_source_url = jsonObj["item"][i]["content"]["news_item"][j]["content_source_url"].ToString();
  wnscilinfo.media_id = newssucaiitem.media_id.ToString();
  WxNewsSuCaiItemlist.Add(wnscilinfo);
  }
 }
 }
 Session["WxNewsSuCaiItemlist"] = WxNewsSuCaiItemlist;
 this.Repeatersucailist.DataSource = newssucaiitemlist;
 this.Repeatersucailist.DataBind();
}

再来看看,新建单图文信息界面:

asp.net微信开发(高级群发图文)

asp.net微信开发(高级群发图文)

新建单图文上传封面,删除封面的代码如下:

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/// <summary>
///
/// </summary>上传图片文件
/// <param name="sender"></param>
/// <param name="e"></param>
protected void LinkBtnFileUploadImg_Click(object sender, EventArgs e)
{
 if (this.FileUploadImg.HasFile)
 {
 string fileContentType = FileUploadImg.PostedFile.ContentType;
 if (fileContentType == "image/bmp" || fileContentType == "image/gif" || fileContentType == "image/png" || fileContentType == "image/x-png" || fileContentType == "image/jpeg"
  || fileContentType == "image/pjpeg")
 {
  int fileSize = this.FileUploadImg.PostedFile.ContentLength;
 
  if (fileSize <=2097152)
  {
  string fileName = this.FileUploadImg.PostedFile.FileName;
  // 客户端文件路径
  string filepath = FileUploadImg.PostedFile.FileName; //得到的是文件的完整路径,包括文件名,如:C:\Documents and Settings\Administrator\My Documents\My Pictures\20022775_m.jpg
  //string filepath = FileUpload1.FileName;  //得到上传的文件名20022775_m.jpg
  string filename = filepath.Substring(filepath.LastIndexOf("\\") + 1);//20022775_m.jpg
  string serverpath = Server.MapPath("~/WeiXinImg/") + filename;//取得文件在服务器上保存的位置C:\Inetpub\wwwroot\WebSite1\images\20022775_m.jpg
 
  this.ImgTuWen.ImageUrl = "~/WeiXinImg/" + FileUploadImg.FileName;
  this.ImgTuWen2.Visible = true;
  this.ImgTuWen2.ImageUrl = "~/WeiXinImg/" + FileUploadImg.FileName;
  this.FileUploadImg.PostedFile.SaveAs(serverpath);//将上传的文件另存为
  this.LinkBtnDeleteImg.Visible = true;
  Session["fileNameimg"] = this.FileUploadImg.PostedFile.FileName;
 
 
  //上传临时图片素材至微信服务器,3天后微信服务器会自动删除
 
  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);
 
 
  //WebClient wx_upload = new WebClient();
  //wx_upload.Credentials = CredentialCache.DefaultCredentials;
  string url = string.Format("http://file.api.weixin.qq.com/cgi-bin/media/upload?access_token={0}&type={1}", Access_tokento, "image");
 
  string result = HttpUploadFile(url, serverpath);
 
  if (result.Contains("media_id"))
  {
   //使用前需要引用Newtonsoft.json.dll文件
   JObject jsonObj = JObject.Parse(result);
 
   Session["imgmedia_id"] = jsonObj["media_id"].ToString();
  }
 
 
  Response.Write("<script>alert('上传图片成功!')</script>");
  }
  else
  {
  Response.Write("<script>alert('上传文件不能大于2M!')</script>");
  }
  
 }
 else
 {
  Response.Write("<script>alert('只支持BMP,GIF,PNG,JPG格式的图片!')</script>");
 }
 }
 else
 {
 Response.Write("<script>alert('请选择图片!')</script>");
 }
}
/// <summary>
/// Http上传文件
/// </summary>
public static string HttpUploadFile(string url, string path)
{
 // 设置参数
 HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
 CookieContainer cookieContainer = new CookieContainer();
 request.CookieContainer = cookieContainer;
 request.AllowAutoRedirect = true;
 request.Method = "POST";
 string boundary = DateTime.Now.Ticks.ToString("X"); // 随机分隔线
 request.ContentType = "multipart/form-data;charset=utf-8;boundary=" + boundary;
 byte[] itemBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "\r\n");
 byte[] endBoundaryBytes = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
 
 int pos = path.LastIndexOf("\\");
 string fileName = path.Substring(pos + 1);
 
 //请求头部信息
 StringBuilder sbHeader = new StringBuilder(string.Format("Content-Disposition:form-data;name=\"file\";filename=\"{0}\"\r\nContent-Type:application/octet-stream\r\n\r\n", fileName));
 byte[] postHeaderBytes = Encoding.UTF8.GetBytes(sbHeader.ToString());
 
 FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
 byte[] bArr = new byte[fs.Length];
 fs.Read(bArr, 0, bArr.Length);
 fs.Close();
 
 Stream postStream = request.GetRequestStream();
 postStream.Write(itemBoundaryBytes, 0, itemBoundaryBytes.Length);
 postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);
 postStream.Write(bArr, 0, bArr.Length);
 postStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
 postStream.Close();
 
 //发送请求并获取相应回应数据
 HttpWebResponse response = request.GetResponse() as HttpWebResponse;
 //直到request.GetResponse()程序才开始向目标网页发送Post请求
 Stream instream = response.GetResponseStream();
 StreamReader sr = new StreamReader(instream, Encoding.UTF8);
 //返回结果网页(html)代码
 string content = sr.ReadToEnd();
 return content;
}
/// <summary>
/// 删除图片
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void LinkBtnDeleteImg_Click(object sender, EventArgs e)
{
 string filename = Session["fileNameimg"].ToString();
 
 if (!string.IsNullOrEmpty(filename))//确保picPath有值并且不为空。
 {
 
 string serverpath = Server.MapPath("~/WeiXinImg/") + filename;//取得文件在服务器上保存的位置C:\Inetpub\wwwroot\WebSite1\images\20022775_m.jpg
 
 if (File.Exists(serverpath))
 {
  try
  {
  File.Delete(serverpath);
  this.ImgTuWen.ImageUrl = "weixinimg/fengmiandefault.jpg";
  this.ImgTuWen2.Visible = false;
  this.ImgTuWen2.ImageUrl = "";
  Session["fileNameimg"] = null;
  this.LinkBtnDeleteImg.Visible = false;
  }
  catch(Exception ex)
  {
  //错误处理:
  Response.Write(ex.Message.ToString());
  }
 }
 }
}

新建单图文预览代码如下:

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/// <summary>
/// 预览图文消息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void LinkBtnSendPreview_Click(object sender, EventArgs e)
{
 Session["media_id"] = null;
 
 //非空验证
 if (String.IsNullOrWhiteSpace(this.txttuwen_title.Value.ToString()))
 {
 ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('请输入图文标题!');", true);
 this.txttuwen_title.Focus();
 return;
 }
 if (this.ImgTuWen2.ImageUrl.ToString().Equals(""))
 {
 ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('必须上传一张图片!');", true);
 this.ImgTuWen2.Focus();
 return;
 }
 if (String.IsNullOrWhiteSpace(this.tbContent.InnerText.ToString()))
 {
 ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('请输入正文内容!');", true);
 this.tbContent.Focus();
 return;
 }
 
 //对各项进行赋值
 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);
 
 
 
 //POST数据例子: POST数据例子:
 //{
 // "articles": [{
 // "title": TITLE,
 // "thumb_media_id": THUMB_MEDIA_ID,
 // "author": AUTHOR,
 // "digest": DIGEST,
 // "show_cover_pic": SHOW_COVER_PIC(0 / 1),
 // "content": CONTENT,
 // "content_source_url": CONTENT_SOURCE_URL
 // },
 // //若新增的是多图文素材,则此处应还有几段articles结构
 // ]
 //}
 
 string isshow_cover_pic = "";
 if (this.CheckFengMianShow.Checked)
 {
 isshow_cover_pic = "1";
 }
 else
 {
 isshow_cover_pic = "0";
 }
 
 
 string description = NoHTML(this.tbContent.InnerText.ToString());
 
 
 string postData = "{\"articles\":[{\"title\":\"" + this.txttuwen_title.Value.ToString() +
 "\",\"thumb_media_id\":\"" + Session["imgmedia_id"].ToString() +
 "\",\"author\":\"" + this.txttuwen_author.Value.ToString() +
 "\",\"digest\":\"" + this.txtzhaiyao.InnerText.ToString() +
  "\",\"show_cover_pic\":\"" + isshow_cover_pic +
  "\",\"content\":\"" + description +
  "\",\"content_source_url\":\"" + this.txtYuanWenUrl.Text.ToString() +
  "\"}]}";
 
 string posturl = string.Format("https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token={0}", Access_tokento);
 
 string jsonres = PostUrl(posturl, postData);
 
 
 if (jsonres.Contains("media_id"))
 {
 //使用前需要引用Newtonsoft.json.dll文件
 JObject jsonObj = JObject.Parse(jsonres);
 
 if (this.txttoUserName.Value.ToString().Trim().Equals("请输入用户微信号"))
 {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('请输入接收消息的用户微信号!');", true);
  return;
 }
 
 
 
 string posturls = "https://api.weixin.qq.com/cgi-bin/message/mass/preview?access_token=" + Access_tokento;
 
 //预览图文消息的json数据{
 // "touser":"OPENID", 可改为对微信号预览,例如towxname:zhangsan
 // "mpnews":{ 
 //  "media_id":"123dsdajkasd231jhksad" 
 //  },
 // "msgtype":"mpnews"
 //}
 string postDatas = "{\"towxname\":\"" + this.txttoUserName.Value.ToString() +
    "\",\"mpnews\":{\"media_id\":\"" + jsonObj["media_id"].ToString() +
    "\"},\"msgtype\":\"mpnews\"}";
 
 string tuwenres = wxs.GetPage(posturls, postDatas);
 
 //使用前需药引用Newtonsoft.json.dll文件
 JObject jsonObjss = JObject.Parse(tuwenres);
 
 if (jsonObjss["errcode"].ToString().Equals("0"))
 {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('发送预览成功!!');", true);
  return;
 }
 else
 {
  ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('发送预览失败!!');", true);
  return;
 }
 }
}
public static string NoHTML(string Htmlstring)
{
 
 //删除脚本
 Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
 
 //替换标签
 Htmlstring = Htmlstring.Replace("\r\n", " ");
 Htmlstring = Htmlstring.Replace("\"", "'");
 Htmlstring = Htmlstring.Replace(" ", " ");
 return Htmlstring;
 
}

单击确定按钮代码如下:

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/// <summary>
/// 确认选择
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void LinkBtnSubSave_Click(object sender, EventArgs e)
{
 Session["media_id"] = null;
 //非空验证
 if (String.IsNullOrWhiteSpace(this.txttuwen_title.Value.ToString()))
 {
 ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('请输入图文标题!');", true);
 return;
 }
 if (this.ImgTuWen2.ImageUrl.ToString().Equals(""))
 {
 ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('必须上传一张图片!');", true);
 return;
 }
 if (String.IsNullOrWhiteSpace(this.tbContent.InnerText.ToString()))
 {
 ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('请输入正文内容!');", true);
 return;
 }
 
 //对各项进行赋值
 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);
 
 
 
 //POST数据例子: POST数据例子:
 //{
 // "articles": [{
 // "title": TITLE,
 // "thumb_media_id": THUMB_MEDIA_ID,
 // "author": AUTHOR,
 // "digest": DIGEST,
 // "show_cover_pic": SHOW_COVER_PIC(0 / 1),
 // "content": CONTENT,
 // "content_source_url": CONTENT_SOURCE_URL
 // },
 // //若新增的是多图文素材,则此处应还有几段articles结构
 // ]
 //}
 
 string isshow_cover_pic = "";
 if (this.CheckFengMianShow.Checked)
 {
 isshow_cover_pic = "1";
 }
 else
 {
 isshow_cover_pic = "0";
 }
 
 string description = NoHTML(this.tbContent.InnerText.ToString());
 
 
 string postData = "{\"articles\":[{\"title\":\"" + this.txttuwen_title.Value.ToString() +
 "\",\"thumb_media_id\":\"" + Session["imgmedia_id"].ToString() +
 "\",\"author\":\"" + this.txttuwen_author.Value.ToString() +
 "\",\"digest\":\"" + this.txtzhaiyao.InnerText.ToString() +
  "\",\"show_cover_pic\":\"" + isshow_cover_pic +
  "\",\"content\":\"" + description +
  "\",\"content_source_url\":\"" + this.txtYuanWenUrl.Text.ToString() +
  "\"}]}";
 
 string posturl = string.Format("https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token={0}", Access_tokento);
 
 string jsonres = PostUrl(posturl, postData);
 
 
 if (jsonres.Contains("media_id"))
 {
 //使用前需要引用Newtonsoft.json.dll文件
 JObject jsonObj = JObject.Parse(jsonres);
 
 WxMpNewsInfo wmninfo = new WxMpNewsInfo();
 wmninfo.title = this.txttuwen_title.Value.ToString();
 wmninfo.contents = description.ToString();
 wmninfo.ImageUrl = this.ImgTuWen.ImageUrl.ToString();
 Session["wmninfo"] = wmninfo;
 Response.Redirect("WxMassManage.aspx?media_id=" + jsonObj["media_id"].ToString());
 }
}
/// <summary>
/// 请求Url,发送数据
/// </summary>
public static string PostUrl(string url, string postData)
{
 byte[] data = Encoding.UTF8.GetBytes(postData);
 
 // 设置参数
 HttpWebRequest request = WebRequest.Create(url) 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;
 Stream outstream = request.GetRequestStream();
 outstream.Write(data, 0, data.Length);
 outstream.Close();
 
 //发送请求并获取相应回应数据
 HttpWebResponse response = request.GetResponse() as HttpWebResponse;
 //直到request.GetResponse()程序才开始向目标网页发送Post请求
 Stream instream = response.GetResponseStream();
 StreamReader sr = new StreamReader(instream, Encoding.UTF8);
 //返回结果网页(html)代码
 string content = sr.ReadToEnd();
 return content;
}

Response.Redirect("WxMassManage.aspx?media_id=" + jsonObj["media_id"].ToString());
这句代码就是将上传图文后得到的media_Id参数传送到群发界面,群发界面接收代码如下:

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protected void Page_Load(object sender, EventArgs e)
{
 if(!Page.IsPostBack)
 {
 BindNewsSucaiList();//绑定素材列表
 BindGroupList();//绑定分组列表
 BindMassCount();//绑定本月已群发条数
 this.DataBind();
 if (Request.QueryString["media_id"] != null)
 {
  this.RadioBtnList.SelectedValue = "1";
  this.showExpress.Visible = false;
  this.txtwenben.Visible = false;
  this.tuwen.Visible = true;
  this.tuwenxuan.Visible = false;
  this.tuwenjian.Visible = false;
  this.lbtuwenmedai_id.Visible = true;
  this.lbtuwenmedai_id.Text = Request.QueryString["media_id"].ToString();
  this.LinkBtndeletetuwen.Visible = true;
  this.Imageyixuan.Visible = true;
 }
 }
}

最终界面如下:

asp.net微信开发(高级群发图文)

我这里只接收了一个media_id值,相对于做的简单,直接将值赋值给了一个label用于显示,也可以做成像官网那样,确定选择后,按照图文样式显示.

asp.net微信开发(高级群发图文)

最后一步:群发按钮代码:其实上一章已经将代码贴出去了,这一章,我就单独贴一遍吧。
 

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/// <summary>
 /// 群发
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 protected void LinkBtnSubSend_Click(object sender, EventArgs e)
 {
  //根据单选按钮判断类型,//如果选择的是图文消息
  if (this.RadioBtnList.SelectedValue.ToString().Equals("1"))
  {
   if (String.IsNullOrWhiteSpace(this.lbtuwenmedai_id.Text.ToString().Trim()))
   {
    ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('请选择或新建图文素材再进行群发!');", true);
    return;
   }
 
   WxMassService wms = new WxMassService();
 
   List<WxMassInfo> wxmaslist = wms.GetMonthMassCount();
 
   if (wxmaslist.Count >= 4)
   {
    ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('本月可群发消息数量已达上限!');", true);
    return;
   }
   else
   {
    
    //如何群发类型为全部用户,根据openID列表群发给全部用户,订阅号不可用,服务号认证后可用
    if (this.DDLMassType.SelectedValue.ToString().Equals("0"))
    {
     StringBuilder sbs = new StringBuilder();
     sbs.Append(GetAllUserOpenIDList());
 
     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 posturl = "https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token=" + Access_tokento;
 
     ///群发POST数据示例如下:
     // {
     // "touser":[
     // "OPENID1",
     // "OPENID2"
     // ],
     // "mpnews":{
     //  "media_id":"123dsdajkasd231jhksad"
     // },
     // "msgtype":"mpnews"
     //}
 
     string postData = "{\"touser\":[" + sbs.ToString() +
      "],\"mpnews\":{\"media_id\":\"" + this.lbtuwenmedai_id.Text.ToString() +
      "\"},\"msgtype\":\"mpnews\"}";
 
 
     string tuwenres = wxs.GetPage(posturl, postData);
 
     //使用前需药引用Newtonsoft.json.dll文件
     JObject jsonObj = JObject.Parse(tuwenres);
 
     if (jsonObj["errcode"].ToString().Equals("0"))
     {
      Session["media_id"] = null;
      WxMassInfo wmi = new WxMassInfo();
      if (Session["wmninfo"] != null)
      {
       WxMpNewsInfo wmninfo = Session["wmninfo"] as WxMpNewsInfo;
 
       wmi.title = wmninfo.title.ToString();
       wmi.contents = wmninfo.contents.ToString();
       wmi.ImageUrl = wmninfo.ImageUrl.ToString();
 
 
       wmi.type = "图文";
 
       if (this.DDLMassType.SelectedValue.ToString().Equals("0"))
       {
        wmi.massObject = this.DDLMassType.SelectedItem.Text.ToString();
       }
       else
       {
        wmi.massObject = this.DDLGroupList.SelectedItem.Text.ToString();
       }
 
       wmi.massStatus = "成功";//群发成功之后返回的状态码
       wmi.massMessageID = jsonObj["msg_id"].ToString();//群发成功之后返回的消息ID
 
       wmi.massDate = System.DateTime.Now.ToString();
 
       int num = wms.AddWxMassInfo(wmi);
 
       if (num > 0)
       {
        Session["wmninfo"] = null;
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!数据已保存!');location='WxMassManage.aspx';", true);
        return;
       }
       else
       {
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!数据保存失败!');", true);
        return;
       }
      }
      else
      {
       wmi.title = "";
       wmi.contents = "";
       wmi.ImageUrl = "";
       wmi.type = "图文";
 
       if (this.DDLMassType.SelectedValue.ToString().Equals("0"))
       {
        wmi.massObject = this.DDLMassType.SelectedItem.Text.ToString();
       }
       else
       {
        wmi.massObject = this.DDLGroupList.SelectedItem.Text.ToString();
       }
 
       wmi.massStatus = "成功";//群发成功之后返回的状态码
       wmi.massMessageID = jsonObj["msg_id"].ToString();//群发成功之后返回的消息ID
 
       wmi.massDate = System.DateTime.Now.ToString();
 
       int num = wms.AddWxMassInfo(wmi);
 
       if (num > 0)
       {
        Session["wmninfo"] = null;
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!图文部分数据已保存!');location='WxMassManage.aspx';", true);
        return;
       }
       else
       {
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!数据保存失败!');", true);
        return;
       }
      }
     }
     else
     {
      ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务提交失败!!');", true);
      return;
     }
 
 
    }
    else
    {
     //根据分组进行群发,订阅号和服务号认证后均可用
 
     string group_id = this.DDLGroupList.SelectedValue.ToString();
 
 
     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 posturl = "https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token=" + Access_tokento;
 
     ///群发POST数据示例如下:
     // {
     // "filter":{
     //  "is_to_all":false
     //  "group_id":"2"
     // },
     // "mpnews":{
     //  "media_id":"123dsdajkasd231jhksad"
     // },
     // "msgtype":"mpnews"
     //}
 
     string postData = "{\"filter\":{\"is_to_all\":\"false\"\"group_id\":\""+group_id+
      "\"},\"mpnews\":{\"media_id\":\"" + this.lbtuwenmedai_id.Text.ToString() +
      "\"},\"msgtype\":\"mpnews\"}";
 
 
     string tuwenres = wxs.GetPage(posturl, postData);
 
     //使用前需药引用Newtonsoft.json.dll文件
     JObject jsonObj = JObject.Parse(tuwenres);
 
     if (jsonObj["errcode"].ToString().Equals("0"))
     {
      Session["media_id"] = null;
      WxMassInfo wmi = new WxMassInfo();
      if (Session["wmninfo"] != null)
      {
       WxMpNewsInfo wmninfo = Session["wmninfo"] as WxMpNewsInfo;
 
       wmi.title = wmninfo.title.ToString();
       wmi.contents = wmninfo.contents.ToString();
       wmi.ImageUrl = wmninfo.ImageUrl.ToString();
 
 
       wmi.type = "图文";
 
       if (this.DDLMassType.SelectedValue.ToString().Equals("0"))
       {
        wmi.massObject = this.DDLMassType.SelectedItem.Text.ToString();
       }
       else
       {
        wmi.massObject = this.DDLGroupList.SelectedItem.Text.ToString();
       }
 
       wmi.massStatus = "成功";//群发成功之后返回的状态码
       wmi.massMessageID = jsonObj["msg_id"].ToString();//群发成功之后返回的消息ID
 
       wmi.massDate = System.DateTime.Now.ToString();
 
       int num = wms.AddWxMassInfo(wmi);
 
       if (num > 0)
       {
        Session["wmninfo"] = null;
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!数据已保存!');location='WxMassManage.aspx';", true);
        return;
       }
       else
       {
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!数据保存失败!');", true);
        return;
       }
      }
      else
      {
       wmi.title = "";
       wmi.contents = "";
       wmi.ImageUrl = "";
       wmi.type = "图文";
 
       if (this.DDLMassType.SelectedValue.ToString().Equals("0"))
       {
        wmi.massObject = this.DDLMassType.SelectedItem.Text.ToString();
       }
       else
       {
        wmi.massObject = this.DDLGroupList.SelectedItem.Text.ToString();
       }
 
       wmi.massStatus = "成功";//群发成功之后返回的状态码
       wmi.massMessageID = jsonObj["msg_id"].ToString();//群发成功之后返回的消息ID
 
       wmi.massDate = System.DateTime.Now.ToString();
 
       int num = wms.AddWxMassInfo(wmi);
 
       if (num > 0)
       {
        Session["wmninfo"] = null;
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!图文部分数据已保存!');location='WxMassManage.aspx';", true);
        return;
       }
       else
       {
        ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务已提交成功!!!数据保存失败!');", true);
        return;
       }
      }
     }
     else
     {
      ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群发任务提交失败!!');", true);
      return;
     }
    }
   }
  }
 }

为什么叫群发任务提交成功或失败,因为将信息提交给微信服务器,微信服务器还需审核,审核过程中也有可能审核不通过,不给于群发,所以我起名叫这个,嘿嘿,随便你们怎么起。。。。。

asp.net微信开发(高级群发图文)

至此群发图文信息功能,已完毕,最后是群发记录,还记得上一章提到的群发成功之后要在本地保存记录吗,保存记录的原因,用于计算当月已群发几条信息,另外还有一个功能就是,群发成功之后,会得到一个消息msgid,根据这个ID可以对已经发送成功的信息进行撤销(删除)操作,关于撤销操作:微信官方规定,对群发成功的图文和视频消息,半个小时之内可以进行删除操作,其他消息一经群发成功概不支持此操作。截图如下:

asp.net微信开发(高级群发图文)

该类用于存储已群发记录的实体类

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/// <summary>
/// 微信已群发消息实体类,用于记录已群发消息的条数,信息实体
/// </summary>
public class WxMassInfo
{
 public int WxMassNo { get; set; }//群发消息编号,数据库自增列
 
 public string title { get; set; }//图文消息的标题,若消息是文本类型,此项不显示
 
 public string ImageUrl { get; set; }//图片地址,若消息是文本类型,此项不显示
 
 public string type { get; set; }//消息的类型,文本,图文,图片,语音,视频
 
 public string contents { get; set; }//文本消息的内容,图文消息的正文
 
 public string massObject { get; set; }//群发对象
 
 public string massStatus { get; set; }//群发状态
 
 public string massMessageID{ get; set; }//群发成功后返回的消息ID
 
 public string massDate { get; set; }//群发日期时间
 
}

以上就是本文的全部内容,希望对大家的学习有所帮助。

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