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這篇文章主要介紹“asp.net微信開(kāi)發(fā)中如何群發(fā)文本”,在日常操作中,相信很多人在asp.net微信開(kāi)發(fā)中如何群發(fā)文本問(wèn)題上存在疑惑,小編查閱了各式資料,整理出簡(jiǎn)單好用的操作方法,希望對(duì)大家解答”asp.net微信開(kāi)發(fā)中如何群發(fā)文本”的疑惑有所幫助!接下來(lái),請(qǐng)跟著小編一起來(lái)學(xué)習(xí)吧!
首先我們先來(lái)講解一下群發(fā)文本信息的過(guò)程,我個(gè)人開(kāi)發(fā)程序是首先要有UI才能下手去寫(xiě)代碼,界面如下,
看圖我們也可以看出首先我們要獲取該微信號(hào)本月還能群發(fā)幾條信息,關(guān)于怎么計(jì)算,就是群發(fā)成功一條信息,就在本地?cái)?shù)據(jù)庫(kù)存儲(chǔ)一條信息,用來(lái)計(jì)算條數(shù),(這個(gè)我相信都會(huì)),大于4條就不能發(fā)送(這里我已經(jīng)限制死了,因?yàn)榉?wù)號(hào)每月只能發(fā)送4條,多發(fā)送也沒(méi)用,用戶只能收到4條,除非使用預(yù)覽功能,挨個(gè)發(fā)送,但預(yù)覽功能也只能發(fā)送100次,或許可能使用開(kāi)發(fā)者模式下群發(fā)信息可以多發(fā)送N次哦,因?yàn)槲胰喊l(fā)了兩次之后,再進(jìn)入到微信公眾平臺(tái)官網(wǎng)后臺(tái)看到的居然還能群發(fā)4條,有點(diǎn)郁悶哦?。?,群發(fā)對(duì)象可選擇為全部用戶或分組用戶,和由于節(jié)省群發(fā)次數(shù),這里我就不測(cè)試群發(fā)文字信息了,具體參考如下代碼:
綁定本月剩余群發(fā)條數(shù)
/// <summary> /// 綁定本月剩余群發(fā)條數(shù) /// </summary> private void BindMassCount() { WxMassService wms = new WxMassService(); List<WxMassInfo> wxmaslist = wms.GetMonthMassCount(); //官方微信服務(wù)號(hào)每月只能群發(fā)4條信息,(訂閱號(hào)每天1條)多余信息,將不會(huì)成功推送,這里已經(jīng)設(shè)定為4 this.lbMassCounts.Text = (4 - int.Parse(wxmaslist.Count.ToString())).ToString(); if (wxmaslist.Count >= 4) { this.LinkBtnSubSend.Enabled = false; this.LinkBtnSubSend.Attributes.Add("Onclick", "return confirm('群發(fā)信息已達(dá)上限!請(qǐng)下月初再試!')"); } else { this.LinkBtnSubSend.Enabled = true; this.LinkBtnSubSend.Attributes.Add("Onclick", "return confirm('您確定要群發(fā)此條信息??')"); } }
綁定分組列表
/// <summary> /// 綁定分組列表 /// </summary> private void BindGroupList() { WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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.DDLGroupList.Items.Clear();//清除 for (int i = 0; i < groupsnum; i++) { this.DDLGroupList.Items.Add(new ListItem(jsonObj["groups"][i]["name"].ToString() + "(" + jsonObj["groups"][i]["count"].ToString() + ")", jsonObj["groups"][i]["id"].ToString())); } } /// <summary> /// 選擇群發(fā)對(duì)象類型,顯示隱藏分組列表項(xiàng) /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void DDLMassType_SelectedIndexChanged(object sender, EventArgs e) { if (int.Parse(this.DDLMassType.SelectedValue.ToString()) > 0) { this.DDLGroupList.Visible = true; } else { this.DDLGroupList.Visible = false; } }
群發(fā)
/// <summary> /// 群發(fā) /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void LinkBtnSubSend_Click(object sender, EventArgs e) { //根據(jù)單選按鈕判斷類型,發(fā)送 ///如果選擇的是文本消息 if (this.RadioBtnList.SelectedValue.ToString().Equals("0")) { if (String.IsNullOrWhiteSpace(this.txtwenben.InnerText.ToString().Trim())) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('請(qǐng)輸入您要群發(fā)文本內(nèi)容!');", true); return; } if (this.txtwenben.InnerText.ToString().Trim().Length<10) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('文本內(nèi)容至少需要10個(gè)字符以上!');", true); return; } WxMassService wms = new WxMassService(); List<WxMassInfo> wxmaslist = wms.GetMonthMassCount(); if (wxmaslist.Count >= 4) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('本月可群發(fā)消息數(shù)量已達(dá)上限!');", true); return; } else { //如何群發(fā)類型為全部用戶,根據(jù)openID列表群發(fā)給全部用戶,訂閱號(hào)不可用,服務(wù)號(hào)認(rèn)證后可用 if (this.DDLMassType.SelectedValue.ToString().Equals("0")) { StringBuilder sbs = new StringBuilder(); sbs.Append(GetAllUserOpenIDList()); WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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; ///群發(fā)POST數(shù)據(jù)示例如下: // { // "touser":[ // "OPENID1", // "OPENID2" // ], // "msgtype": "text", // "text": { "content": "hello from boxer."} //} string postData = "{\"touser\":[" + sbs.ToString() + "],\"msgtype\":\"text\",\"text\":{\"content\":\"" + this.txtwenben.InnerText.ToString() + "\"}"; string tuwenres = wxs.GetPage(posturl, postData); //使用前需藥引用Newtonsoft.json.dll文件 JObject jsonObj = JObject.Parse(tuwenres); if (jsonObj["errcode"].ToString().Equals("0")) { //群發(fā)成功后,保存記錄 WxMassInfo wmi = new WxMassInfo(); wmi.ImageUrl = ""; wmi.type = "文本"; wmi.contents = this.txtwenben.InnerText.ToString().Trim(); wmi.title = this.txtwenben.InnerText.ToString().Substring(0, 10) + "..."; 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";//群發(fā)成功之后返回的狀態(tài)碼 wmi.massMessageID = jsonObj["msg_id"].ToString();//群發(fā)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('群發(fā)任務(wù)已提交成功?。?!數(shù)據(jù)已保存!');location='WxMassManage.aspx';", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)已提交成功?。?!數(shù)據(jù)保存失?。?#39;);", true); return; } } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)提交失?。。?#39;);", true); return; } } else { string group_id = this.DDLGroupList.SelectedValue.ToString(); WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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; ///群發(fā)POST數(shù)據(jù)示例如下: // { // "filter":{ // "is_to_all":false // "group_id":"2" // }, // "text":{ // "content":"CONTENT" // }, // "msgtype":"text" //} //} string postData = "{\"filter\":{\"is_to_all\":\"false\"\"group_id\":\"" + group_id + "\"},\"text\":{\"content\":\"" + this.txtwenben.InnerText.ToString() + "\"},\"msgtype\":\"text\"}"; string tuwenres = wxs.GetPage(posturl, postData); //使用前需藥引用Newtonsoft.json.dll文件 JObject jsonObj = JObject.Parse(tuwenres); if (jsonObj["errcode"].ToString().Equals("0")) { //群發(fā)成功后,保存記錄 WxMassInfo wmi = new WxMassInfo(); wmi.ImageUrl = ""; wmi.type = "文本"; wmi.contents = this.txtwenben.InnerText.ToString().Trim(); wmi.title = this.txtwenben.InnerText.ToString().Substring(0, 10) + "..."; 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";//群發(fā)成功之后返回的狀態(tài)碼 wmi.massMessageID = jsonObj["msg_id"].ToString();//群發(fā)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('群發(fā)任務(wù)已提交成功!??!數(shù)據(jù)已保存!');location='WxMassManage.aspx';", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)已提交成功!??!數(shù)據(jù)保存失??!');", true); return; } } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)提交失敗??!');", true); return; } } } } //如果選擇的是圖文消息 if (this.RadioBtnList.SelectedValue.ToString().Equals("1")) { if (String.IsNullOrWhiteSpace(this.lbtuwenmedai_id.Text.ToString().Trim())) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('請(qǐng)選擇或新建圖文素材再進(jìn)行群發(fā)!');", true); return; } WxMassService wms = new WxMassService(); List<WxMassInfo> wxmaslist = wms.GetMonthMassCount(); if (wxmaslist.Count >= 4) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('本月可群發(fā)消息數(shù)量已達(dá)上限!');", true); return; } else { //如何群發(fā)類型為全部用戶,根據(jù)openID列表群發(fā)給全部用戶,訂閱號(hào)不可用,服務(wù)號(hào)認(rèn)證后可用 if (this.DDLMassType.SelectedValue.ToString().Equals("0")) { StringBuilder sbs = new StringBuilder(); sbs.Append(GetAllUserOpenIDList()); WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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; ///群發(fā)POST數(shù)據(jù)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); //使用前需藥引用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 = "圖文"; 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";//群發(fā)成功之后返回的狀態(tài)碼 wmi.massMessageID = jsonObj["msg_id"].ToString();//群發(fā)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('群發(fā)任務(wù)已提交成功?。?!數(shù)據(jù)已保存!');location='WxMassManage.aspx';", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)已提交成功!??!數(shù)據(jù)保存失敗!');", true); return; } } else { wmi.title = ""; wmi.contents = ""; wmi.ImageUrl = ""; wmi.type = "圖文"; 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";//群發(fā)成功之后返回的狀態(tài)碼 wmi.massMessageID = jsonObj["msg_id"].ToString();//群發(fā)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('群發(fā)任務(wù)已提交成功?。。D文部分?jǐn)?shù)據(jù)已保存!');location='WxMassManage.aspx';", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)已提交成功?。?!數(shù)據(jù)保存失敗!');", true); return; } } } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)提交失?。?!');", true); return; } } else { //根據(jù)分組進(jìn)行群發(fā),訂閱號(hào)和服務(wù)號(hào)認(rèn)證后均可用 string group_id = this.DDLGroupList.SelectedValue.ToString(); WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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; ///群發(fā)POST數(shù)據(jù)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); //使用前需藥引用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 = "圖文"; 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";//群發(fā)成功之后返回的狀態(tài)碼 wmi.massMessageID = jsonObj["msg_id"].ToString();//群發(fā)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('群發(fā)任務(wù)已提交成功!??!數(shù)據(jù)已保存!');location='WxMassManage.aspx';", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)已提交成功?。。?shù)據(jù)保存失??!');", true); return; } } else { wmi.title = ""; wmi.contents = ""; wmi.ImageUrl = ""; wmi.type = "圖文"; 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";//群發(fā)成功之后返回的狀態(tài)碼 wmi.massMessageID = jsonObj["msg_id"].ToString();//群發(fā)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('群發(fā)任務(wù)已提交成功!??!圖文部分?jǐn)?shù)據(jù)已保存!');location='WxMassManage.aspx';", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)已提交成功!??!數(shù)據(jù)保存失敗!');", true); return; } } } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('群發(fā)任務(wù)提交失?。?!');", true); return; } } } } }
發(fā)送前預(yù)覽
/// <summary> /// 發(fā)送前預(yù)覽 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void LinkBtnSendPreview_Click(object sender, EventArgs e) { WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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/preview?access_token=" + Access_tokento; ///如果選擇的是文本消息 if (this.RadioBtnList.SelectedValue.ToString().Equals("0")) { if (String.IsNullOrWhiteSpace(this.txtwenben.InnerText.ToString().Trim())) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('請(qǐng)輸入您要發(fā)送預(yù)覽的文本內(nèi)容!');", true); return; } if (this.txttoUserName.Value.ToString().Trim().Equals("請(qǐng)輸入用戶微信號(hào)")) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('請(qǐng)輸入接收消息的用戶微信號(hào)!');", true); return; } //文本消息的json數(shù)據(jù){ // "touser":"OPENID", 可改為對(duì)微信號(hào)預(yù)覽,例如towxname:zhangsan // "text":{ // "content":"CONTENT" // }, // "msgtype":"text" //} string postData = "{\"towxname\":\"" + this.txttoUserName.Value.ToString() + "\",\"text\":{\"content\":\"" + this.txtwenben.InnerText.ToString() + "\"},\"msgtype\":\"text\"}"; string tuwenres = wxs.GetPage(posturl, postData); //使用前需藥引用Newtonsoft.json.dll文件 JObject jsonObj = JObject.Parse(tuwenres); if (jsonObj["errcode"].ToString().Equals("0")) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('發(fā)送預(yù)覽成功??!');", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('發(fā)送預(yù)覽失?。?!');", true); return; } } //如果選擇的是圖文消息 if (this.RadioBtnList.SelectedValue.ToString().Equals("1")) { if(String.IsNullOrWhiteSpace(this.lbtuwenmedai_id.Text.ToString().Trim())) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('請(qǐng)選擇要預(yù)覽的圖文素材!');", true); return; } if (this.txttoUserName.Value.ToString().Trim().Equals("請(qǐng)輸入用戶微信號(hào)")) { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('請(qǐng)輸入接收消息的用戶微信號(hào)!');", true); return; } //圖文消息的json數(shù)據(jù){ // "touser":"OPENID", 可改為對(duì)微信號(hào)預(yù)覽,例如towxname:zhangsan // "mpnews":{ // "media_id":"123dsdajkasd231jhksad" // }, // "msgtype":"mpnews" //} string postData = "{\"towxname\":\"" + this.txttoUserName.Value.ToString() + "\",\"mpnews\":{\"media_id\":\"" + this.lbtuwenmedai_id.Text.ToString() + "\"},\"msgtype\":\"mpnews\"}"; string tuwenres = wxs.GetPage(posturl, postData); //使用前需藥引用Newtonsoft.json.dll文件 JObject jsonObj = JObject.Parse(tuwenres); if (jsonObj["errcode"].ToString().Equals("0")) { Session["media_id"] = null; ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('發(fā)送預(yù)覽成功?。?#39;);", true); return; } else { ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "", "alert('發(fā)送預(yù)覽失?。。?#39;);", true); return; } } }
關(guān)鍵部分,獲取全部用戶的openID并串聯(lián)成字符串:
/// <summary> /// 獲取所有微信用戶的OpenID /// </summary> /// <returns></returns> protected string GetAllUserOpenIDList() { StringBuilder sb = new StringBuilder(); WeiXinServer wxs = new WeiXinServer(); ///從緩存讀取accesstoken string Access_token = Cache["Access_token"] as string; if (Access_token == null) { //如果為空,重新獲取 Access_token = wxs.GetAccessToken(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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(); //設(shè)置緩存的數(shù)據(jù)7000秒后過(guò)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); if (jsonObj.ToString().Contains("count")) { int totalnum = int.Parse(jsonObj["count"].ToString()); for (int i = 0; i < totalnum; i++) { sb.Append('"'); sb.Append(jsonObj["data"]["openid"][i].ToString()); sb.Append('"'); sb.Append(","); } } return sb.Remove(sb.ToString().LastIndexOf(","),1).ToString(); }
到此,關(guān)于“asp.net微信開(kāi)發(fā)中如何群發(fā)文本”的學(xué)習(xí)就結(jié)束了,希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí),快去試試吧!若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí),請(qǐng)繼續(xù)關(guān)注億速云網(wǎng)站,小編會(huì)繼續(xù)努力為大家?guī)?lái)更多實(shí)用的文章!
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