微信公众帐号消息帐号

未来是属于微信这种产品的时代。老板每次都兴奋地跟我提起他是如何如何的好。

我之前以为微信只是QQ的手机语音版，没想到腾讯竟然有如此大的勇气突破落后的生态体制，大力扶持微信，而不遭到内部固有生态的排他影响。20世纪经评网说，这是腾讯的“光荣革命”。关于他们的表述，我是完全认同的。

以下是前几天做的微信消息接口：

using System;using System.Collections;using System.Configuration;using System.Data;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;using System.Xml;using System.IO;using System.Text;using System.Collections.Generic;using System.Net;namespace OAuth2Demo{    public partial class WebForm1 : System.Web.UI.Page    {        const string Token = "token";//与那边填写的token一致        protected void Page_Load(object sender, EventArgs e)        {            string postStr = "";            if (Request.HttpMethod.ToLower() == "post")            {                Stream s = System.Web.HttpContext.Current.Request.InputStream;                byte[] b = new byte[s.Length];                s.Read(b, 0, (int)s.Length);                postStr = Encoding.UTF8.GetString(b);                if (!string.IsNullOrEmpty(postStr))                {                    //封装请求类                    XmlDocument doc = new XmlDocument();                    doc.LoadXml(postStr);                    XmlElement rootElement = doc.DocumentElement;                    XmlNode MsgType = rootElement.SelectSingleNode("MsgType");                    RequestXML requestXML = new RequestXML();                    requestXML.ToUserName = rootElement.SelectSingleNode("ToUserName").InnerText;                    requestXML.FromUserName = rootElement.SelectSingleNode("FromUserName").InnerText;                    requestXML.CreateTime = rootElement.SelectSingleNode("CreateTime").InnerText;                    requestXML.MsgType = MsgType.InnerText;                    if (requestXML.MsgType == "text")                    {                        requestXML.Content = rootElement.SelectSingleNode("Content").InnerText;                    }                    else if (requestXML.MsgType == "location")                    {                        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;                    }                    else if (requestXML.MsgType == "image")                    {                        requestXML.PicUrl = rootElement.SelectSingleNode("PicUrl").InnerText;                    }                    //回复消息                    ResponseMsg(requestXML);                }            }            else            {                Valid();            }        }        /// <summary>        /// 验证微信签名        /// </summary>        /// * 将token、timestamp、nonce三个参数进行字典序排序        /// * 将三个参数字符串拼接成一个字符串进行sha1加密        /// * 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信。        /// <returns></returns>        private bool CheckSignature()        {            string signature = Request.QueryString["signature"];            string timestamp = Request.QueryString["timestamp"];            string nonce = Request.QueryString["nonce"];            string[] ArrTmp = { Token, timestamp, nonce };            Array.Sort(ArrTmp);     //字典排序            string tmpStr = string.Join("", ArrTmp);            tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");            tmpStr = tmpStr.ToLower();            if (tmpStr == signature)            {                return true;            }            else            {                return false;            }        }        private void Valid()        {            string echoStr = Request.QueryString["echoStr"];            if (CheckSignature())            {                if (!string.IsNullOrEmpty(echoStr))                {                    Response.Write(echoStr);                    Response.End();                }            }        }        /// <summary>        /// 回复消息(微信信息返回)        /// </summary>        /// <param name="weixinXML"></param>        private void ResponseMsg(RequestXML requestXML)        {            try            {                string resxml = "";                if (requestXML.MsgType == "text")                {                    resxml = "<xml><ToUserName><![CDATA[" + requestXML.FromUserName + "]]></ToUserName><FromUserName><![CDATA[" + requestXML.ToUserName + "]]></FromUserName><CreateTime>" + ConvertDateTimeInt(DateTime.Now) + "</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[正在建设中，稍等时日，更多精彩……]]></Content><FuncFlag>0</FuncFlag></xml>";                }                else if (requestXML.MsgType == "location")                {                    string city = GetMapInfo(requestXML.Location_X, requestXML.Location_Y);                    if (city == "0")                    {                        resxml = "<xml><ToUserName><![CDATA[" + requestXML.FromUserName + "]]></ToUserName><FromUserName><![CDATA[" + requestXML.ToUserName + "]]></FromUserName><CreateTime>" + ConvertDateTimeInt(DateTime.Now) + "</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[Sorry，没有找到" + city + " 的相关产品信息]]></Content><FuncFlag>0</FuncFlag></xml>";                    }                    else                    {                        resxml = "<xml><ToUserName><![CDATA[" + requestXML.FromUserName + "]]></ToUserName><FromUserName><![CDATA[" + requestXML.ToUserName + "]]></FromUserName><CreateTime>" + ConvertDateTimeInt(DateTime.Now) + "</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[Sorry，这是 " + city + " 的产品信息：圈圈叉叉]]></Content><FuncFlag>0</FuncFlag></xml>";                    }                }                else if (requestXML.MsgType == "image")                {                    //返回10以内条                    int size = 10;                    resxml = "<xml><ToUserName><![CDATA[" + requestXML.FromUserName + "]]></ToUserName><FromUserName><![CDATA[" + requestXML.ToUserName + "]]></FromUserName><CreateTime>" + ConvertDateTimeInt(DateTime.Now) + "</CreateTime><MsgType><![CDATA[news]]></MsgType><Content><![CDATA[]]></Content><ArticleCount>" + size + "</ArticleCount><Articles>";                    List<string> list = new List<string>();                    //假如有20条查询的返回结果                    for (int i = 0; i < 20; i++)                    {                        list.Add("1");                    }                    string[] piclist = new string[] { "/Abstract_Pencil_Scribble_Background_Vector_main.jpg", "/balloon_tree.jpg", "/bloom.jpg", "/colorful_flowers.jpg", "/colorful_summer_flower.jpg", "/fall.jpg", "/fall_tree.jpg", "/growing_flowers.jpg", "/shoes_illustration.jpg", "/splashed_tree.jpg" };                    for (int i = 0; i < size && i < list.Count; i++)                    {                        resxml += "<item><Title><![CDATA[沈阳-黑龙江]]></Title><Description><![CDATA[元旦特价：￥300 市场价：￥400]]></Description><PicUrl><![CDATA[" + "http://www.hougelou.com" + piclist[i] + "]]></PicUrl><Url><![CDATA[http://www.hougelou.com]]></Url></item>";                    }                    resxml += "</Articles><FuncFlag>1</FuncFlag></xml>";                }                WriteTxt(resxml);                Response.Write(resxml);            }            catch (Exception ex)            {                WriteTxt("异常："+ex.Message+"Struck:"+ex.StackTrace.ToString());            }        }        /// <summary>        /// unix时间转换为datetime        /// </summary>        /// <param name="timeStamp"></param>        /// <returns></returns>        private DateTime UnixTimeToTime(string timeStamp)        {            DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));            long lTime = long.Parse(timeStamp + "0000000");            TimeSpan toNow = new TimeSpan(lTime);            return dtStart.Add(toNow);        }        /// <summary>        /// datetime转换为unixtime        /// </summary>        /// <param name="time"></param>        /// <returns></returns>        private int ConvertDateTimeInt(System.DateTime time)        {            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));            return (int)(time - startTime).TotalSeconds;        }        /// <summary>        /// 记录bug，以便调试        /// </summary>        /// <returns></returns>        public bool WriteTxt(string str)        {            try            {                FileStream fs = new FileStream(Server.MapPath("/bugLog.txt"), FileMode.Append);                StreamWriter sw = new StreamWriter(fs);                //开始写入                sw.WriteLine(str);                //清空缓冲区                sw.Flush();                //关闭流                sw.Close();                fs.Close();            }            catch (Exception)            {                return false;            }            return true;        }        /// <summary>        /// 调用百度地图，返回坐标信息        /// </summary>        /// <param name="y">经度</param>        /// <param name="x">纬度</param>        /// <returns></returns>        public string GetMapInfo(string x, string y)        {            try            {                string res = string.Empty;                string parame = string.Empty;                string url = "http://maps.googleapis.com/maps/api/geocode/xml";                parame = "latlng=" + x + "," + y + "&language=zh-CN&sensor=false";//此key为个人申请                res = webRequestPost(url, parame);                XmlDocument doc = new XmlDocument();                doc.LoadXml(res);                XmlElement rootElement = doc.DocumentElement;                string Status = rootElement.SelectSingleNode("status").InnerText;                if (Status == "OK")                {                    //仅获取城市                    XmlNodeList xmlResults = rootElement.SelectSingleNode("/GeocodeResponse").ChildNodes;                    for (int i = 0; i < xmlResults.Count; i++)                    {                        XmlNode childNode = xmlResults[i];                        if (childNode.Name == "status")                        {                            continue;                        }                        string city = "0";                        for (int w = 0; w < childNode.ChildNodes.Count; w++)                        {                            for (int q = 0; q < childNode.ChildNodes[w].ChildNodes.Count; q++)                            {                                XmlNode childeTwo = childNode.ChildNodes[w].ChildNodes[q];                                if (childeTwo.Name == "long_name")                                {                                    city = childeTwo.InnerText;                                }                                else if (childeTwo.InnerText == "locality")                                {                                    return city;                                }                            }                         }                        return city;                    }                }            }            catch (Exception ex)            {                WriteTxt("map异常:" + ex.Message.ToString() + "Struck:" + ex.StackTrace.ToString());                return "0";            }            return "0";        }        /// <summary>        /// Post 提交调用抓取        /// </summary>        /// <param name="url">提交地址</param>        /// <param name="param">参数</param>        /// <returns>string</returns>        public string webRequestPost(string url, string param)        {            byte[] bs = System.Text.Encoding.UTF8.GetBytes(param);            HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url+"?"+param);            req.Method = "Post";            req.Timeout = 120 * 1000;            req.ContentType = "application/x-www-form-urlencoded;";            req.ContentLength = bs.Length;            using (Stream reqStream = req.GetRequestStream())            {                reqStream.Write(bs, 0, bs.Length);                reqStream.Flush();            }            using (WebResponse wr = req.GetResponse())            {                //在这里对接收到的页面内容进行处理                 Stream strm = wr.GetResponseStream();                StreamReader sr = new StreamReader(strm, System.Text.Encoding.UTF8);                string line;                System.Text.StringBuilder sb = new System.Text.StringBuilder();                while ((line = sr.ReadLine()) != null)                {                    sb.Append(line + System.Environment.NewLine);                }                sr.Close();                strm.Close();                return sb.ToString();            }        }    }    //微信请求类    public class RequestXML    {        private string toUserName;        /// <summary>        /// 消息接收方微信号，一般为公众平台账号微信号        /// </summary>        public string ToUserName        {            get { return toUserName; }            set { toUserName = value; }        }        private string fromUserName;        /// <summary>        /// 消息发送方微信号        /// </summary>        public string FromUserName        {            get { return fromUserName; }            set { fromUserName = value; }        }        private string createTime;        /// <summary>        /// 创建时间        /// </summary>        public string CreateTime        {            get { return createTime; }            set { createTime = value; }        }        private string msgType;        /// <summary>        /// 信息类型 地理位置:location,文本消息:text,消息类型:image        /// </summary>        public string MsgType        {            get { return msgType; }            set { msgType = value; }        }        private string content;        /// <summary>        /// 信息内容        /// </summary>        public string Content        {            get { return content; }            set { content = value; }        }        private string location_X;        /// <summary>        /// 地理位置纬度        /// </summary>        public string Location_X        {            get { return location_X; }            set { location_X = value; }        }        private string location_Y;        /// <summary>        /// 地理位置经度        /// </summary>        public string Location_Y        {            get { return location_Y; }            set { location_Y = value; }        }        private string scale;        /// <summary>        /// 地图缩放大小        /// </summary>        public string Scale        {            get { return scale; }            set { scale = value; }        }        private string label;        /// <summary>        /// 地理位置信息        /// </summary>        public string Label        {            get { return label; }            set { label = value; }        }        private string picUrl;        /// <summary>        /// 图片链接，开发者可以用HTTP GET获取        /// </summary>        public string PicUrl        {            get { return picUrl; }            set { picUrl = value; }        }    }}

微信4.5的demo在博客园，大家可以参照一下。

http://www.cnblogs.com/hougelou/archive/2013/04/02/2995463.html

微信5.0我会在后续的时候跟进，和大家一起讨论微信的开发，只是现在好像不太知道到底要多什么好玩的功能了，所以没什么动力了。