C# · 12月 29, 2021

asp.net微信开发(高级群发图文)

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:

我们先看从素材库中获取图文素材的代码,界面:

素材列表,我是使用的repeater控件,

前台代码如下:

<!–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:Check@R_48_2419@ 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:

/// <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:

新建单图文上传封面,删除封面的代码如下:

/// <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”,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,bArr.Length); fs.Close(); Stream postStream = request.GetRequestStream(); postStream.Write(itemBoundaryBytes,itemBoundaryBytes.Length); postStream.Write(postHeaderBytes,postHeaderBytes.Length); postStream.Write(bArr,bArr.Length); postStream.Write(endBoundaryBytes,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:

/// <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,”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,”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.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,”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,”alert(‘发送预览成功!!’);”,true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page,”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:

/// <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,true); return; } if (this.ImgTuWen2.ImageUrl.ToString().Equals(“”)) { ScriptManager.RegisterClientScriptBlock(this.Page,true); return; } if (String.IsNullOrWhiteSpace(this.tbContent.InnerText.ToString())) { ScriptManager.RegisterClientScriptBlock(this.Page,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”,// //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() + “\”,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,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:

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:

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.

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。

/// <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,”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,”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”,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,”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,”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,”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,”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.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″ // },// “msgtype”:”mpnews” //} string postData = “{\”filter\”:{\”is_to_all\”:\”false\”\”group_id\”:\””+group_id+ “\”},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。。。。。

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:

该类用于存储已群发记录的实体类

/// <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 }

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。

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