当我们关注公众号后,我们可以推送一篇图文里面可以有相关的介绍和活动及欢迎的话:
//请求处理的方法
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string postString = string.Empty;
if (HttpContext.Current.Request.HttpMethod.ToUpper() == "POST")
{
using (Stream stream = HttpContext.Current.Request.InputStream)
{
Byte[] postBytes = new Byte[stream.Length];
stream.Read(postBytes, 0, (Int32)stream.Length);
postString = Encoding.UTF8.GetString(postBytes);
}
if (!string.IsNullOrEmpty(postString))
{
ResponseXML(postString);//返回给微信用户信息
// ReturnMessage(postString);
}
}
}
/// <summary>
/// 发送关注时的图文消息
/// </summary>
/// <param name="requestXML"></param>
private void SendWelComeMsg(RequestXML requestXML)
{
String responseContent = String.Empty;
string newdate = DateTime.Now.Subtract(new DateTime(1970, 1, 1, 8, 0, 0)).TotalSeconds.ToString();
//图片的链接地址
string PUrlfileName = "http://mmbiz.qpic.cn/mmbiz/7iaiaRJE9s3HAbvxtjqbE85wqmektib1xnwdl8dniaFuK5BMnVhehWzTlK2zW0YVzFfLKjexQfgj12SJcwicGSFOyvw/640?wx_fmt=jpeg&wxfrom=5";
responseContent = string.Format(ResponseXMl.Message_News_Main, requestXML.FromUserName, requestXML.ToUserName, newdate, "1",
//参数分别代表发送图文的标题,简介,以及图文的链接地址
string.Format(ResponseXMl.Message_News_Item, "欢迎关注我的测试号", "2016年新的机遇和挑战...", PUrlfileName, "http://mp.weixin.qq.com/s?__biz=MzA4NjIwMTg5Nw==&tempkey=1D1FlQbenM0RdbGL7jPebIYV7OWGdyEY8DClNjaJHJ3yoGh1t3KfoVvK2FGXjgeuTMemMzu4GASlT2p4yyPT4oZp8bVWH1kF3BxYJGHGHnPpcr%2Bb8zdejjshCRSr8V18HPS9gh%2Fa0wKarCp%2B2mYOEA%3D%3D&#rd"));
HttpContext.Current.Response.ContentType = "text/xml";
HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;
HttpContext.Current.Response.Write(responseContent);
HttpContext.Current.Response.End();
}
/// <summary>
/// 返回图文消息主体
/// </summary>
///
public static string Message_News_Main
{
get
{
return @"<xml>
<ToUserName><![CDATA[{0}]]></ToUserName>
<FromUserName><![CDATA[{1}]]></FromUserName>
<CreateTime>{2}</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>{3}</ArticleCount>
<Articles>
{4}
</Articles>
</xml> ";
}
}
/// <summary>
/// 返回图文消息项
/// </summary>
public static string Message_News_Item
{
get
{
return @"<item>
<Title><![CDATA[{0}]]></Title>
<Description><![CDATA[{1}]]></Description>
<PicUrl><![CDATA[{2}]]></PicUrl>
<Url><![CDATA[{3}]]></Url>
</item>";
}
/// <summary>
/// 响应请求的信息
/// </summary>
/// <param name="requestXML"></param>
private void ResponseMsg(RequestXML requestXML)
{
string MsgType = requestXML.MsgType;
try
{
//根据消息类型判断发送何种类型消息
switch (MsgType)
{
case "text":
SendTextCase(requestXML);//发送文本消息
break;
case "event"://发送事件消息
if (!string.IsNullOrWhiteSpace(requestXML.EventName) && requestXML.EventName.ToString().Trim().Equals("subscribe"))
{
SendWelComeMsg(requestXML);//关注时返回的图文消息
}
else if (!string.IsNullOrWhiteSpace(requestXML.EventName) && requestXML.EventName.ToString().Trim().Equals("CLICK"))
{
SendEventMsg(requestXML);//发送事件消息
}
break;
case "voice":
SendVoiceMsg(requestXML);//发送语音消息
break;
case "location"://发送位置消息
SendMapMsg(requestXML);
break;
default:
break;
}
}
catch (Exception ex)
{
HttpContext.Current.Response.Write(ex.ToString());
}
}
}
/// <summary>
/// 获取用户发送的消息
/// </summary>
/// <param name="postString"></param>
private void ResponseXML(string postString)
{
//使用XMLDocument加载信息结构
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(postString);
XmlElement rootElement = xmlDoc.DocumentElement;//获取文档的根
XmlNode MsgType = rootElement.SelectSingleNode("MsgType"); //获取消息的文本类型
RequestXML requestXML = new RequestXML();//声明实例,获取各个属性并赋值
requestXML.ToUserName = rootElement.SelectSingleNode("ToUserName").InnerText;//公众号
requestXML.FromUserName = rootElement.SelectSingleNode("FromUserName").InnerText;//用户
requestXML.CreateTime = rootElement.SelectSingleNode("CreateTime").InnerText;//创建时间
requestXML.MsgType = MsgType.InnerText;//消息类型
///对消息的不同类型进行赋值
if (requestXML.MsgType == "text")
{
//赋值文本信息内容
requestXML.Content = rootElement.SelectSingleNode("Content").InnerText;
}
if (requestXML.MsgType.Trim() == "location")
{
///赋值地理位置纬度,经度,地图缩放比例,地理位置说明
requestXML.Location_X = rootElement.SelectSingleNode("Location_X").InnerText;
requestXML.Location_Y = rootElement.SelectSingleNode("Location_Y").InnerText;
requestXML.Scale = rootElement.SelectSingleNode("Scale").InnerText;
requestXML.Label = rootElement.SelectSingleNode("Label").InnerText;
}
if (requestXML.MsgType.Trim().ToLower() == "event")
{
///赋值事件名称和事件key值
requestXML.EventName = rootElement.SelectSingleNode("Event").InnerText;
requestXML.EventKey = rootElement.SelectSingleNode("EventKey").InnerText;
}
if (requestXML.MsgType.Trim().ToLower() == "voice")
{
///赋值语音识别结果,赋值之前一定要记得在开发者模式下,把语音识别功能开启,否则获取不到
requestXML.Recognition = rootElement.SelectSingleNode("Recognition").InnerText;
}
ResponseMsg(requestXML);//调用图文信息
}
转载于:https://www.cnblogs.com/professional-NET/p/5668648.html