微信公众平台开发者模式自动回复功能与自定义菜单

private void ExtractPostData() /*** 提取POST来的数据中的信息 ***/
{
Stream s = HttpContext.Current.Request.InputStream; //读取post来的数据流
byte[] b = new byte[s.Length]; //定义一个和post来的数据流长度一致的空数组
s.Read(b, 0, (int)s.Length); //把这个数据流存入数组
string postStr = Encoding.UTF8.GetString(b); //把数组转换成字符串
XmlDocument doc = new XmlDocument(); //System.Xml中的类，用于对XML文档操作
doc.LoadXml(postStr); //加载字符串（文本）
XmlNodeList list = doc.GetElementsByTagName("xml"); //返回标签名为“xml”的所有节点，返回的是数组
XmlNode xn = list[0]; //获得第一个标签名为“xml”的节点，注意类为XmlNode，这里实际是获得“根”
ToUserName = xn.SelectSingleNode("//FromUserName").InnerText; //在“根”下找标签为“FromUserName”的节点，并靠.InnerText获得这个标签里面的文本
MsgType = xn.SelectSingleNode("//MsgType").InnerText; //获得用户发来的信息是什么类型:text,image,location,link,event等
if (MsgType == "text")
{
Content = xn.SelectSingleNode("//Content").InnerText;//获取用户发来的文本消息的内容
}
}

string ReMess = "";//用来存储回复给用户的内容

private string ToUserName = null; //用户账号

private string MsgType = null; //接收到的信息类型

 

private string Content = null; //回复给用户的内容

if (MsgType == "text")//如果用户发来的是文本信息
{
if (Content == "ABC" || Content == "abc")//Content就是用户发给公众号的信息
{
ReMess = "123";//回复给用户的消息 
}
else
{
ReMess = "你好，我的功能还很有限，只是测试程序。\n其他服务正在建设中...";//回复给用户的消息 
}
//ReMess = this.ResText(ToUserName, ReMess);//这里ReMess兼做存储XML格式字符串
}
responseMsg(ReMess);

private void responseMsg(string Content)
{
string strresponse = "<xml>";
strresponse = strresponse + "<ToUserName><![CDATA[" + ToUserName + "]]></ToUserName>";//回复给谁
strresponse = strresponse + "<FromUserName><![CDATA[" + FromUserName + "]]></FromUserName>";//是开发者回复
strresponse = strresponse + "<CreateTime>" + DateTime.Now.Ticks.ToString() + "</CreateTime>";//消息创建时间
strresponse = strresponse + "<MsgType><![CDATA[text]]></MsgType>";//消息类型为“文本”
strresponse = strresponse + "<Content><![CDATA[" + Content + "]]></Content>";//回复的消息内容
strresponse = strresponse + "<FuncFlag>0<FuncFlag>";
strresponse = strresponse + "</xml>";
Response.Write(strresponse);
Response.End();
}

private void CreateMenu() 
{
string weixin1 = "";
weixin1 = @" { 
""button"":[ 
{ 
""type"":""click"", 
""name"":""你好!"", 
""key"":""Hello"" 
}, 
{ 
""type"":""view"", 
""name"":""公司简介"", 
""url"":""http://www.baidu.com" 
}, 
{ 
""name"":""产品介绍"", 
""sub_button"":[ 
{ 
""type"":""click"", 
""name"":""产品1"", 
""key"":""P1"" 
}, 
{ 
""type"":""click"", 
""name"":""产品2"", 
""key"":""P2"" 
}] 
}] 
} 
";

string i = GetPage("https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + "    填入access_token", weixin1);
Response.Write(i);
}

public string GetPage(string posturl, string postData)
{
Stream outstream = null;
Stream instream = null;
StreamReader sr = null;
HttpWebResponse response = null;
HttpWebRequest request = null;
Encoding encoding = Encoding.UTF8;
byte[] data = encoding.GetBytes(postData);
// 准备请求... 
try
{
// 设置参数 
request = WebRequest.Create(posturl) as HttpWebRequest;
CookieContainer cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
outstream = request.GetRequestStream();
outstream.Write(data, 0, data.Length);
outstream.Close();
//发送请求并获取相应回应数据 
response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求 
instream = response.GetResponseStream();
sr = new StreamReader(instream, encoding);
//返回结果网页（html）代码 
string content = sr.ReadToEnd();
string err = string.Empty;
return content;
}
catch (Exception ex)
{
string err = ex.Message;
Response.Write(err);
return string.Empty;
}
}