C#微信开发之旅--基本信息的回复

下面来实现一下简单的信息回复。

也就是接收XML，返回XML

可以去看下微信开发文档的说明：http://mp.weixin.qq.com/wiki/10/79502792eef98d6e0c6e1739da387346.html

根据请求的信息类型，创建了一个信息请求类：(忘记从哪里拷贝过来的了)

//微信请求类

    public class RequestXML

    {

        private String toUserName = String.Empty;

        /// <summary>

        /// 公众号

        /// </summary>

        public String ToUserName

        {

            get { return toUserName; }

            set { toUserName = value; }

        }

        private String fromUserName = "";

        /// <summary>

        /// 发送方微信号

        /// </summary>

        public String FromUserName

        {

            get { return fromUserName; }

            set { fromUserName = value; }

        }

        private String createTime = String.Empty;

        /// <summary>

        /// 创建时间

        /// </summary>

        public String CreateTime

        {

            get { return createTime; }

            set { createTime = value; }

        }

        private String msgType = String.Empty;

        /// <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 = String.Empty;

        /// <summary>

        /// 信息内容

        /// </summary>

        public String Content

        {

            get { return content; }

            set { content = value; }

        }

        private String location_X = String.Empty;

        /// <summary>

        /// 地理位置纬度

        /// </summary>

        public String Location_X

        {

            get { return location_X; }

            set { location_X = value; }

        }

        private String location_Y = String.Empty;

        /// <summary>

        /// 地理位置经度

        /// </summary>

        public String Location_Y

        {

            get { return location_Y; }

            set { location_Y = value; }

        }

        private String scale = String.Empty;

        /// <summary>

        /// 地图缩放大小

        /// </summary>

        public String Scale

        {

            get { return scale; }

            set { scale = value; }

        }

        private String mapInfo = String.Empty;

        /// <summary>

        /// 地理位置信息

        /// </summary>

        public String MapInfo

        {

            get { return mapInfo; }

            set { mapInfo = value; }

        }

        private String picUrl = String.Empty;

        /// <summary>

        /// 图片链接

        /// </summary>

        public String PicUrl

        {

            get { return picUrl; }

            set { picUrl = value; }

        }

        private String _event;

        /// <summary>

        /// 事件类型

        /// </summary>

        public String Event

        {

            get { return _event; }

            set { _event = value; }

        }

        private String eventKey;

        /// <summary>

        /// 事件key

        /// </summary>

        public String EventKey

        {

            get { return eventKey; }

            set { eventKey = value; }

        }

    }

1.我们接收XML信息，然后读取其中的信息保存到RequestXML中，然后根据请求类型，返回对应的信息

/// <summary>

        /// 接收信息

        /// </summary>

        /// <param name="postStr"></param>

        public void Handle(String postStr)

        {

            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.MapInfo = rootElement.SelectSingleNode("Label").InnerText;

            }

            else if (requestXML.MsgType == "image")

            {

                requestXML.PicUrl = rootElement.SelectSingleNode("PicUrl").InnerText;

            }

            else if (requestXML.MsgType == "event")//事件

            {

                requestXML.Event = rootElement.SelectSingleNode("Event").InnerText;

                if (requestXML.Event == "CLICK")//点击事件

                {

                    requestXML.EventKey = rootElement.SelectSingleNode("EventKey").InnerText;

                }

                else if (requestXML.Event == "subscribe")//订阅

                {

                }

            }

            ResponseMsg(requestXML);

        }

上面已经处理好了请求信息，现在就要对请求作出回复，回复的信息格式也是XML。

具体也可以看下微信开发文档：http://mp.weixin.qq.com/wiki/14/89b871b5466b19b3efa4ada8e577d45e.html

现在就做一个简单的文本回复，就没有弄一个回复类。

/// <summary>

        /// 回复消息

        /// </summary>

        /// <param name="weixinXML"></param>

        private void ResponseMsg(RequestXML requestXML)

        {

            String responseContent = String.Empty;

            if (requestXML.MsgType == "text")//文本

            {

responseContent = FormatTextXML(requestXML.FromUserName, requestXML.ToUserName, "基本回复\r\n" + DateTime.Now.ToString() + "\r\n" + requestXML.FromUserName);

                }

        HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;

            HttpContext.Current.Response.Write(responseContent);

        }

上面就是一个简单的文本回复，如果请求的信息是文本的话，我会返回一句话。FormatTextXML就是把封装要返回的XML。

因为我们在开发文档中可以看见，返回的文本信息的话，格式为：

 <xml>

<ToUserName><![CDATA[toUser]]></ToUserName>

<FromUserName><![CDATA[fromUser]]></FromUserName>

<CreateTime>12345678</CreateTime>

<MsgType><![CDATA[text]]></MsgType>

<Content><![CDATA[你好]]></Content>

</xml>

所以FormatTextXML就这样写了：

/// <summary>

        /// 返回格式化文本XML内容

        /// </summary>

        /// <param name="fromUserName"></param>

        /// <param name="toUserName"></param>

        /// <param name="content"></param>

        /// <returns></returns>

        private String FormatTextXML(String fromUserName, String toUserName, String content)

        {

            return "<xml><ToUserName><![CDATA[" + fromUserName + "]]></ToUserName><FromUserName><![CDATA[" + toUserName + "]]></FromUserName><CreateTime>" + ConvertDateTimeInt(DateTime.Now) + "</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[" + content + "]]></Content><FuncFlag>1</FuncFlag></xml>";

        }

这样一个简单的文本回复就弄好了！你发送文本信息给公众号，就能得到一个回复了。

一点积累一点点！

巴特西

C#微信开发之旅--基本信息的回复

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