微信公众号开发小计（二）实现底部菜单的时间

在上一篇文章中我们创建了WrchatMain的一般处理程序
底部菜单中每一个时间的点击都是一个post提交所以我们会在else中加入以下代码

 CreateLog.SaveLogs("获取到微信发来的消息
	", 1);
                Stream wxdata = context.Request.InputStream;
                //将字节流转化为输出流
                byte[] wxdatabyte = new byte[wxdata.Length];
                wxdata.Read(wxdatabyte, 0, (int)wxdata.Length);
                string postdata = Encoding.UTF8.GetString(wxdatabyte);
                //CreateLog.SaveLogs(postdata, 1);
                if (!string.IsNullOrEmpty(postdata))
                {
                    //参数不为空则获取相关参数
                    returnStr = MessageCommon.ReqMessage(postdata);
                }

在WeChatBussiness中创建Article类用于指定微信推荐信息的数据格式

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Travel.WeChat.WeChatBussiness
{
    public class Article
    {
        private string _title;
        private string _description;
        private string _picUrl;
        private string _url;

        /// <summary>
        /// 图文消息名称 
        /// </summary>
        public string Title
        {
            get { return _title; }
            set { _title = value; }
        }

        /// <summary>
        /// 图文消息描述
        /// </summary>
        public string Description
        {
            get { return _description; }
            set { _description = value; }
        }

        /// <summary>
        /// 图片链接，支持JPG、PNG格式，较好的效果为大图640*320，小图80*80，限制图片链接的域名需要与开发者填写的基本资料中的Url一致
        /// </summary>
        public string PicUrl
        {
            get { return _picUrl; }
            set { _picUrl = value; }
        }

        /// <summary>
        /// 点击图文消息跳转链接
        /// </summary>
        public string Url
        {
            get { return _url; }
            set { _url = value; }
        }
    }
}

创建MessageCommon用于接受微信的请求，从而进行处理

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Xml;
using Travel.WeChat.WeChatBussiness;

namespace Travel.WeChat.WeCahtCode
{
    public class MessageCommon
    {
        public MessageCommon()
        { }

        /// <summary>
        /// 消息处理
        /// </summary>
        /// <param name="document">消息字符串</param>
        /// <returns></returns>
        public static string ReqMessage(string document)
        {
            string returnstr = "";
            //开始把字符串变成XML对象
            XmlDocument xmldoc = new XmlDocument();
            xmldoc.LoadXml(document);
            //获得xml的根节点
            XmlElement roolelement = xmldoc.DocumentElement;
            //开始需要知道我获得的消息是什么？
            //获取MsgType 消息类型
            string MsgType = roolelement.SelectSingleNode("MsgType").InnerText;
            if (MsgType == "text")
            {
                //文本消息
                //CreateLog.SaveLogs("文本信息："+document+"
	", 1);
                return "";
            }
            else if (MsgType == "event")
            {
                //事件
                //CreateLog.SaveLogs("事件：" + document + "
	", 1);
                //需要知道是什么事件，通过Xml中的Event节点来判别。
                string keyNode = roolelement.SelectSingleNode("Event").InnerText;

                if (keyNode == "CLICK")
                {
                    //获得事件的标识字符串，如：菜单节点中的key值
                    string EventKey = roolelement.SelectSingleNode("EventKey").InnerText;
                    //开始组织一个返回结果的对象，对象类型是文本。
                    RespTextMessage rtm = new RespTextMessage();
                    rtm.ToUserName = roolelement.SelectSingleNode("FromUserName").InnerText;
                    rtm.FromUserName = roolelement.SelectSingleNode("ToUserName").InnerText;
                    rtm.CreateTime = WeChatInit.datetimestr();
                    rtm.MsgType = "text";

                    RespNewsMessage newsObj = new RespNewsMessage();
                    newsObj.ToUserName = roolelement.SelectSingleNode("FromUserName").InnerText;
                    newsObj.FromUserName = roolelement.SelectSingleNode("ToUserName").InnerText;
                    newsObj.CreateTime = WeChatInit.datetimestr();
                    newsObj.MsgType = "news";
                    ProductBussiness infor = new ProductBussiness();
                    // CreateLog.SaveLogs("点击事件：EventKey=" + EventKey + "；ToUserName=" + rtm.ToUserName + "；FromUserName=" + rtm.FromUserName + "；CreateTime=" + roolelement.SelectSingleNode("CreateTime").InnerText, 1);
                    // CreateLog.SaveLogs(EventKey == "NewProduct" ? "1" : "2", 1);
                    switch (EventKey)
                    {
                        case "NewProduct":
                            //最新产品    
                            newsObj.Articles = infor.GetProduct();
                            newsObj.ArticleCount = newsObj.Articles.Count;
                            returnstr = newsObj.SendContent();
                            break;
                        case "NewSale":
                            //最新特卖
                            newsObj.Articles = infor.GetSaleProduct();
                            newsObj.ArticleCount = newsObj.Articles.Count;
                            returnstr = newsObj.SendContent();
                            break;
                        case "NewSelling":
                            //当季畅销     
                            newsObj.Articles = infor.GetSalingProduct();
                            newsObj.ArticleCount = newsObj.Articles.Count;
                            returnstr = newsObj.SendContent();
                            break;

                        default: break;
                    }
                    return returnstr;
                }
                else if (keyNode == "VIEW")
                {
                    string EventKey = roolelement.SelectSingleNode("EventKey").InnerText;
                    string ToUserName = roolelement.SelectSingleNode("ToUserName").InnerText;
                    string FromUserName = roolelement.SelectSingleNode("FromUserName").InnerText;
                    string CreateTime = roolelement.SelectSingleNode("CreateTime").InnerText;
                    string MenuID = roolelement.SelectSingleNode("MenuID").InnerText;
                    CreateLog.SaveLogs("点击事件：EventKey=" + EventKey + "；ToUserName=" + ToUserName + "；FromUserName=" + FromUserName + "；MenuID=" + MenuID + "；CreateTime=" + CreateTime, 1);
                }
                return "";
            }
            else if (MsgType == "Page")
            {
                //CreateLog.SaveLogs("页面：" + document + "
	", 1);
                return "";
            }
            return returnstr;
        }

    }
}

 这样我们的菜单就创建完成了