C#开发之微信小程序发送模板消息功能

步骤三：调用接口下发模板消息

今天重要的说第三步怎么实现，前面的步骤比较简单就略过。

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1. 获取 access_token

https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET

后面会在发送模板消息的时候会用到access_token

2. 发送模板消息

接口地址：(ACCESS_TOKEN 需换成上文获取到的 access_token)

https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=ACCESS_TOKEN

注意说明：由于微信现在不让开发者直接在前端使用 https://api.weixin.qq.com 接口获取数据，所以下面的操作都必须由服务器后台来完成。

官方的POST参数：

{
 "touser": "OPENID", 
 "template_id": "TEMPLATE_ID", 
 "page": "index",   
 "form_id": "FORMID",   
 "data": {
  "keyword1": {
   "value": "339208499", 
   "color": "#173177"
  }, 
  "keyword2": {
   "value": "2015年01月05日 12:30", 
   "color": "#173177"
  }, 
  "keyword3": {
   "value": "粤海喜来登酒店", 
   "color": "#173177"
  } , 
  "keyword4": {
   "value": "广州市天河区天河路208号", 
   "color": "#173177"
  } 
 },
 "emphasis_keyword": "keyword1.DATA" 
}
   var l = "https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=" + access_token;
   var tempData = new
   {
    touser = openid,
    template_id = "VErasH9Plzmyw9-PQjiggkBCa3hOU30qfvTaxD******",//这个是1、申请的模板消息id，
    page ="pages/index/index",
    form_id = formId,
    data = new
    {
     keyword1 = new
     {
      value = title,
      color = "#666666"
     },
     keyword2 = new
     {
      value = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"),
      color = "#9b9b9b"
     },
     keyword3 = new
     {
      value = Remarks,
      color = "#9b9b9b"
     }
    },
    color = "#666666"
   };
   X.Component.Tools.WebClient wc = new X.Component.Tools.WebClient();
   var result = tempData.ToJson(); //Newtonsoft.Json.JsonConvert.SerializeObject(tempData);
   wc.Encoding = System.Text.Encoding.UTF8;
   var obj = wc.Post(l, result); //得到返回的结果

注意 page路径

最后返回的结果：

{
 "data": {
  "success": true
 }, 
 "statusCode": 200, 
 "header": {
  "Server": "Microsoft-IIS/7.5", 
  "Access-Control-Allow-Origin": "https://pubchem.ncbi.nlm.nih.gov", 
  "Cache-Control": "private", 
  "X-UA-Compatible": "chrome=1", 
  "Date": "Thu, 28 Sep 2017 04:46:34 GMT", 
  "X-AspNetMvc-Version": "4.0", 
  "Content-Type": "application/json; charset=utf-8", 
  "X-Powered-By": "ASP.NET", 
  "X-AspNet-Version": "4.0.30319", 
  "Content-Length": "16"
 }, 
 "errMsg": "request:ok"
}

效果截图：

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