本內(nèi)容為微信開發(fā)之微信發(fā)送消息?

1，首先，獲取開發(fā)者測試賬號（申請），會根據(jù)當前掃碼提供的賬號生成測試賬號： 鏈接地址：http://mp.weixin.qq.com/wiki/home/index.html

?

　　這時候可以獲取到測試用的appid和appsecrept,然后調(diào)用獲取接口調(diào)用憑證 接口獲取access_token；

2，下面說信息發(fā)送，模擬了單用戶信息發(fā)送和多用戶消息批量發(fā)送

　?。?）基礎(chǔ)方法，http方法　　　　

///?<summary>
????????///??????http??get/post?公用方法
????????///?</summary>
????????///?<param name="requestUrl">請求鏈接</param>
????????///?<param name="requestJsonParams">請求參數(shù)值（如果是get方式此處為“”值,默認為?""）</param>
????????///?<param name="requestMethod">請求方式??post?or?get</param>
????????///?<returns></returns>
????????public?static?string?Request(this?string?requestUrl,?string?requestMethod,?string?requestJsonParams?=?"")
????????{
????????????string?returnText?=?"";
????????????StreamReader?streamReader?=?null;
????????????HttpWebRequest?request?=?null;
????????????HttpWebResponse?response?=?null;

????????????Encoding?encoding?=?Encoding.UTF8;
????????????request?=?(HttpWebRequest)WebRequest.Create(requestUrl);
????????????request.Method?=?requestMethod;
????????????if?(!string.IsNullOrEmpty(requestJsonParams)?&&?requestMethod.ToLower()?==?"post")
????????????{
????????????????byte[]?buffer?=?encoding.GetBytes(requestJsonParams);
????????????????request.ContentLength?=?buffer.Length;
????????????????request.GetRequestStream().Write(buffer,?0,?buffer.Length);
????????????}

????????????try
????????????{
????????????????response?=?(HttpWebResponse)request.GetResponse();
????????????????using?(streamReader?=?new?StreamReader(response.GetResponseStream(),?System.Text.Encoding.GetEncoding("gb2312")))//utf-8
????????????????{
????????????????????returnText?=?streamReader.ReadToEnd();
????????????????}
????????????}
????????????catch?(Exception?ex)
????????????{
????????????????returnText?=?ex.Message;
????????????}

????????????return?returnText;
????????}

（2）模擬發(fā)送：　　

///?<summary>
????????///?????發(fā)送微信信息(單用戶發(fā)送)
????????///?</summary>
????????///?<param name="access_token">授權(quán)碼（微信token）</param>
????????///?<param name="messageInfo">發(fā)送信息模型</param>
????????///?<returns></returns>
????????public?static?string?SendSingleMessage(WeChatParamEntity?messageInfo,?string?access_token)
????????{
????????????messageInfo.MsgType?=?string.IsNullOrEmpty(messageInfo.MsgType)???"text"?:?messageInfo.MsgType;
????????????string?jsonDataParams?=?messageInfo?==?null???""?:?JsonConvert.SerializeObject(new
????????????{
????????????????touser?=?messageInfo.ToUser,
????????????????msgtype?=?messageInfo.MsgType,
????????????????text?=?new?{?content?=?messageInfo.Text?}
????????????});
????????????string?requestUrl?=?string.Format(Consts.URL_POSTSINGLETEXTMESSAGE,?access_token);
????????????return?requestUrl.Request("POST",?jsonDataParams);
????????}
????????///?<summary>
????????///?????發(fā)送微信信息（多用戶批量發(fā)送）
????????///?</summary>
????????///?<param name="access_token">授權(quán)碼（微信token）</param>
????????///?<param name="messageInfo">發(fā)送信息模型</param>
????????///?<returns></returns>
????????public?static?string?SendMessages(WeChatParamsEntity?messageInfo,?string?access_token)
????????{
????????????messageInfo.MsgType?=?string.IsNullOrEmpty(messageInfo.MsgType)???"text"?:?messageInfo.MsgType;
????????????string?jsonDataParams?=?messageInfo?==?null???""?:?JsonConvert.SerializeObject(new
????????????{
????????????????touser?=?messageInfo.ToUser,
????????????????msgtype?=?messageInfo.MsgType,
????????????????text?=?new?{?content?=?messageInfo.Text?}
????????????});
????????????string?requestUrl?=?string.Format(Consts.URL_POSTTEXTMESSAGES,?access_token);
????????????return?requestUrl.Request("POST",?jsonDataParams);
????????}

　?。?）兩個參數(shù) 模型：　

///?<summary>
????///?????微信?發(fā)送信息?參數(shù)實體模型
????///?</summary>
????public?class?WeChatParamEntity
????{
????????///?<summary>
????????///?????普通用戶openid
????????///?</summary>
????????public?string?ToUser?{?get;?set;?}
????????///?<summary>
????????///?????傳輸?shù)奈募愋停╰ext,image,?and?so?on）
????????///?</summary>
????????public?string?MsgType?{?get;?set;?}?=?"text";
????????///?<summary>
????????///?????傳輸文本內(nèi)容
????????///?</summary>
????????public?string?Text?{?get;?set;?}

????}

????///?<summary>
????///?????微信?發(fā)送信息?參數(shù)實體模型
????///?</summary>
????public?class?WeChatParamsEntity
????{
????????///?<summary>
????????///?????普通用戶openid
????????///?</summary>
????????public?string[]?ToUser?{?get;?set;?}
????????///?<summary>
????????///?????傳輸?shù)奈募愋停╰ext,image,?and?so?on）
????????///?</summary>
????????public?string?MsgType?{?get;?set;?}?=?"text";
????????///?<summary>
????????///?????傳輸文本內(nèi)容
????????///?</summary>
????????public?string?Text?{?get;?set;?}

????}

?　?。?）web.config中的鏈接

<!--微信接口-->

????<add key="appid" value="wx123456789021"/>
????<add key="appSecret" value="adasdsadasdasdsadasdsaqweqw"/>
????<add key="getAccessTokenUrl" value="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&amp;appid={0}&amp;secret={1}"/>
????<!--單用戶信息發(fā)送-->
????<add key="postSingleTextMessageUrl" value="https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token={0}"/>
????<!--多用戶批量發(fā)送-->
????<add key="postTextMessagesUrl" value="https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token={0}"/>
????<!--\微信接口-->

?3，測試使用涉及到 ?touser的這個參數(shù)，這個是需要發(fā)送的對象的 ?openID,這個很簡單，在開發(fā)者文檔（也就是上面的步驟二中，）獲取

appid ?和appsecrept的時候，當前這個頁面下面有一個二維碼，找?guī)讉€人用微信掃掃就可以自動獲取openID ,這時候?qū)?shù)帶入腳本模擬

post即可

　　另外需要注意:文檔中提示的 ?json 參數(shù)格式

　　注意三：token有效時間為7200，倆小時，需要判斷當前發(fā)送信息用戶的token有效性，同時每天最大可請求次數(shù)為2000.

獲取token :

#region?獲取token，并驗證token過期時間

????????public?static?string?GetAccessToken(string?appid,?string?appSecret)
????????{
????????????string?token?=?"";
????????????string?requestUrl?=?string.Format(ConfigBLL.URL_GETACCESSTOKEN,?appid,?appSecret);
????????????string?requestResult?=?WebAPITransfer.Request(requestUrl,?"GET",?"");

????????????CommonBLL.DebugLog(requestResult,?"AccessToken-token-Params");
????????????string[]?strArray?=?requestResult.Split(',');
????????????token?=?strArray[0].Split(':')[1].Replace("\"",?"");

????????????return?token;
????????}

????????#endregion

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