本内容为微信开发之微信发送消息
1,首先,获取开发者测试账号(申请),会根据当前扫码提供的账号生成测试账号: 链接地址:http://mp.weixin.qq.com/wiki/home/index.html
这时候可以获取到测试用的appid和appsecrept,然后调用获取接口调用凭证 接口获取access_token;
2,下面说信息发送,模拟了单用户信息发送和多用户消息批量发送
(1)基础方法,http方法
/// <summary> /// http get/post 公用方法 /// </summary> /// <param name="requestUrl">请求链接</param> /// <param name="requestJsonParams">请求参数值(如果是get方式此处为“”值,默认为 "")</param> /// <param name="requestMethod">请求方式 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)模拟发送:
/// <summary> /// 发送微信信息(单用户发送) /// </summary> /// <param name="access_token">授权码(微信token)</param> /// <param name="messageInfo">发送信息模型</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> /// 发送微信信息(多用户批量发送) /// </summary> /// <param name="access_token">授权码(微信token)</param> /// <param name="messageInfo">发送信息模型</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); }
(3)两个参数 模型:
/// <summary> /// 微信 发送信息 参数实体模型 /// </summary> public class WeChatParamEntity { /// <summary> /// 普通用户openid /// </summary> public string ToUser { get; set; } /// <summary> /// 传输的文件类型(text,image, and so on) /// </summary> public string MsgType { get; set; } = "text"; /// <summary> /// 传输文本内容 /// </summary> public string Text { get; set; } } /// <summary> /// 微信 发送信息 参数实体模型 /// </summary> public class WeChatParamsEntity { /// <summary> /// 普通用户openid /// </summary> public string[] ToUser { get; set; } /// <summary> /// 传输的文件类型(text,image, and so on) /// </summary> public string MsgType { get; set; } = "text"; /// <summary> /// 传输文本内容 /// </summary> public string Text { get; set; } }
(4)web.config中的链接
<!--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&appid={0}&secret={1}"/> <!--单用户信息发送--> <add key="postSingleTextMessageUrl" value="https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token={0}"/> <!--多用户批量发送--> <add key="postTextMessagesUrl" value="https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token={0}"/> <!--\微信接口-->
3,测试使用涉及到 touser的这个参数,这个是需要发送的对象的 openID,这个很简单,在开发者文档(也就是上面的步骤二中,)获取
appid 和appsecrept的时候,当前这个页面下面有一个二维码,找几个人用微信扫扫就可以自动获取openID ,这时候将参数带入脚本模拟
post即可
另外需要注意:文档中提示的 json 参数格式
注意三:token有效时间为7200,俩小时,需要判断当前发送信息用户的token有效性,同时每天最大可请求次数为2000.
获取token :
#region 获取token,并验证token过期时间 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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