分享一篇基于.NET的微信SDK

一、前言

特别不喜欢麻烦的一个人，最近碰到了微信开发。下载下来了一些其他人写的微信开发“框架”，但是被恶心到了，实现的太臃肿啦。

最不喜欢的就是把微信返回的xml消息在组装成实体类，所以会比较臃肿，现在都提倡轻量级，所以有什么办法可以避免大量实体类的存在呢。

当然，还有包装的比较繁杂，看完官方API后，再看"框架"，让人感觉一头雾水，不够清晰、明了。

二、我的实现思路

我的微信SDK（不敢自称框架），最重要的实现2个目标：

1.轻量级，就是要摒弃实体类，尽量少的申明Entity，减少SDK的体量；

2.简单、明了，就是SDK类的划分和官方API保持一致，让人一看就懂你的用意。

用户发送请是首先POST到微信服务器的，然后微信服务器在POST到我的服务器，这个接受的消息是xml,我猜测为什么是xml,而不是更轻量级的json，是为了更好的兼容性，毕竟xml更通用一些（说错了，请指出来）。而我们主动调用微信的一些API时，它返回的是json格式，我靠，要死啊，高大上啊。你们的副总裁张小龙不知道这事吗？好吧，这样其实也可以的。

其实，调用微信的工作原理很简单，没有必要上来就框架什么的，我相信是个合格的程序员都能做出来。

我们的服务器只需要一个GET,和一个POST就可以和微信通信了，从这一点来看，设计的还是比较人性化的，赞一个。GET用于接通微信服务的校验，验证；POST用于接收微信服务器过来的消息，然后将Response组装好返回即可。

三、上代码

好了，废话不多说了。

由于微信服务器Post给我们的是xml消息，返回的是json,所以需要互转。这样就存在3种类型的format,这也是大量的框架定义实体类导致框架不够轻量级的的原因之所在。

实现第一个目标，我主要用到了.net Framework4.0的Dynamic特性，和一个将xml字符串自动转换成Dynamic Object的DynamicXml.cs类，还有一个将json字符串自动转换成Dynamic Object的DynamicJson.cs类。

苦苦寻觅，终于让我找到了我想要的。

1.以下是DynamicXml.cs类，文件头有原作者的版权信息。

/*-------------------------------------------------------------------------- * https://www.captechconsulting.com/blog/kevin-hazzard/fluent-xml-parsing-using-cs-dynamic-type-part-1 * 博客园网友 夜の魔王 友情借用此代码，用于微信开发。 * http://www.cnblogs.com/deepleo/*--------------------------------------------------------------------------*/using System;using System.Collections.Generic;using System.Linq;using System.Dynamic;using System.Xml.Linq;using System.Collections;public class DynamicXml : DynamicObject, IEnumerable{private readonly List<XElement> _elements;public DynamicXml(string text){var doc = XDocument.Parse(text);_elements = new List<XElement> { doc.Root };}protected DynamicXml(XElement element){_elements = new List<XElement> { element };}protected DynamicXml(IEnumerable<XElement> elements){_elements = new List<XElement>(elements);}public override bool TryGetMember(GetMemberBinder binder, out object result){result = null;if (binder.Name == "Value")result = _elements[0].Value;else if (binder.Name == "Count")result = _elements.Count;else{var attr = _elements[0].Attribute(XName.Get(binder.Name));if (attr != null)result = attr;else{var items = _elements.Descendants(XName.Get(binder.Name));if (items == null || items.Count() == 0) return false;result = new DynamicXml(items);}}return true;}public override bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result){int ndx = (int)indexes[0];result = new DynamicXml(_elements[ndx]);return true;}public IEnumerator GetEnumerator(){foreach (var element in _elements)yield return new DynamicXml(element);}}View Code

这个代码我也没仔细看，反正能用，没出过差错。

2.以下是DynamicJson.cs类，文件头有原作者的版权信息

/*--------------------------------------------------------------------------* DynamicJson* ver 1.2.0.0 (May. 21th, 2010)** created and maintained by neuecc <ils@neue.cc>* licensed under Microsoft Public License(Ms-PL)* http://neue.cc/* http://dynamicjson.codeplex.com/ * 博客园网友 夜の魔王 友情借用此代码，用于微信开发。 * http://www.cnblogs.com/deepleo/*--------------------------------------------------------------------------*/using System;using System.Collections;using System.Collections.Generic;using System.Diagnostics;using System.Dynamic;using System.IO;using System.Linq;using System.Reflection;using System.Runtime.Serialization.Json;using System.Text;using System.Xml;using System.Xml.Linq;namespace Codeplex.Data{public class DynamicJson : DynamicObject{private enum JsonType{@string, number, boolean, @object, array, @null}// public static methods/// <summary>from JsonSring to DynamicJson</summary>public static dynamic Parse(string json){return Parse(json, Encoding.Unicode);}/// <summary>from JsonSring to DynamicJson</summary>public static dynamic Parse(string json, Encoding encoding){using (var reader = JsonReaderWriterFactory.CreateJsonReader(encoding.GetBytes(json), XmlDictionaryReaderQuotas.Max)){return ToValue(XElement.Load(reader));}}/// <summary>from JsonSringStream to DynamicJson</summary>public static dynamic Parse(Stream stream){using (var reader = JsonReaderWriterFactory.CreateJsonReader(stream, XmlDictionaryReaderQuotas.Max)){return ToValue(XElement.Load(reader));}}/// <summary>from JsonSringStream to DynamicJson</summary>public static dynamic Parse(Stream stream, Encoding encoding){using (var reader = JsonReaderWriterFactory.CreateJsonReader(stream, encoding, XmlDictionaryReaderQuotas.Max, _ => { })){return ToValue(XElement.Load(reader));}}/// <summary>create JsonSring from primitive or IEnumerable or Object({public property name:property value})</summary>public static string Serialize(object obj){return CreateJsonString(new XStreamingElement("root", CreateTypeAttr(GetJsonType(obj)), CreateJsonNode(obj)));}// private static methodsprivate static dynamic ToValue(XElement element){var type = (JsonType)Enum.Parse(typeof(JsonType), element.Attribute("type").Value);switch (type){case JsonType.boolean:return (bool)element;case JsonType.number:return (double)element;case JsonType.@string:return (string)element;case JsonType.@object:case JsonType.array:return new DynamicJson(element, type);case JsonType.@null:default:return null;}}private static JsonType GetJsonType(object obj){if (obj == null) return JsonType.@null;switch (Type.GetTypeCode(obj.GetType())){case TypeCode.Boolean:return JsonType.boolean;case TypeCode.String:case TypeCode.Char:case TypeCode.DateTime:return JsonType.@string;case TypeCode.Int16:case TypeCode.Int32:case TypeCode.Int64:case TypeCode.UInt16:case TypeCode.UInt32:case TypeCode.UInt64:case TypeCode.Single:case TypeCode.Double:case TypeCode.Decimal:case TypeCode.SByte:case TypeCode.Byte:return JsonType.number;case TypeCode.Object:return (obj is IEnumerable) ? JsonType.array : JsonType.@object;case TypeCode.DBNull:case TypeCode.Empty:default:return JsonType.@null;}}private static XAttribute CreateTypeAttr(JsonType type){return new XAttribute("type", type.ToString());}private static object CreateJsonNode(object obj){var type = GetJsonType(obj);switch (type){case JsonType.@string:case JsonType.number:return obj;case JsonType.boolean:return obj.ToString().ToLower();case JsonType.@object:return CreateXObject(obj);case JsonType.array:return CreateXArray(obj as IEnumerable);case JsonType.@null:default:return null;}}private static IEnumerable<XStreamingElement> CreateXArray<T>(T obj) where T : IEnumerable{return obj.Cast<object>().Select(o => new XStreamingElement("item", CreateTypeAttr(GetJsonType(o)), CreateJsonNode(o)));}private static IEnumerable<XStreamingElement> CreateXObject(object obj){return obj.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance).Select(pi => new { Name = pi.Name, Value = pi.GetValue(obj, null) }).Select(a => new XStreamingElement(a.Name, CreateTypeAttr(GetJsonType(a.Value)), CreateJsonNode(a.Value)));}private static string CreateJsonString(XStreamingElement element){using (var ms = new MemoryStream())using (var writer = JsonReaderWriterFactory.CreateJsonWriter(ms, Encoding.Unicode)){element.WriteTo(writer);writer.Flush();return Encoding.Unicode.GetString(ms.ToArray());}}// dynamic structure represents JavaScript Object/Arrayreadonly XElement xml;readonly JsonType jsonType;/// <summary>create blank JSObject</summary>public DynamicJson(){xml = new XElement("root", CreateTypeAttr(JsonType.@object));jsonType = JsonType.@object;}private DynamicJson(XElement element, JsonType type){Debug.Assert(type == JsonType.array || type == JsonType.@object);xml = element;jsonType = type;}public bool IsObject { get { return jsonType == JsonType.@object; } }public bool IsArray { get { return jsonType == JsonType.array; } }/// <summary>has property or not</summary>public bool IsDefined(string name){return IsObject && (xml.Element(name) != null);}/// <summary>has property or not</summary>public bool IsDefined(int index){return IsArray && (xml.Elements().ElementAtOrDefault(index) != null);}/// <summary>delete property</summary>public bool Delete(string name){var elem = xml.Element(name);if (elem != null){elem.Remove();return true;}else return false;}/// <summary>delete property</summary>public bool Delete(int index){var elem = xml.Elements().ElementAtOrDefault(index);if (elem != null){elem.Remove();return true;}else return false;}/// <summary>mapping to Array or Class by Public PropertyName</summary>public T Deserialize<T>(){return (T)Deserialize(typeof(T));}private object Deserialize(Type type){return (IsArray) ? DeserializeArray(type) : DeserializeObject(type);}private dynamic DeserializeValue(XElement element, Type elementType){var value = ToValue(element);if (value is DynamicJson){value = ((DynamicJson)value).Deserialize(elementType);}return Convert.ChangeType(value, elementType);}private object DeserializeObject(Type targetType){var result = Activator.CreateInstance(targetType);var dict = targetType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => p.CanWrite).ToDictionary(pi => pi.Name, pi => pi);foreach (var item in xml.Elements()){PropertyInfo propertyInfo;if (!dict.TryGetValue(item.Name.LocalName, out propertyInfo)) continue;var value = DeserializeValue(item, propertyInfo.PropertyType);propertyInfo.SetValue(result, value, null);}return result;}private object DeserializeArray(Type targetType){if (targetType.IsArray) // Foo[]{var elemType = targetType.GetElementType();dynamic array = Array.CreateInstance(elemType, xml.Elements().Count());var index = 0;foreach (var item in xml.Elements()){array[index++] = DeserializeValue(item, elemType);}return array;}else // List<Foo>{var elemType = targetType.GetGenericArguments()[0];dynamic list = Activator.CreateInstance(targetType);foreach (var item in xml.Elements()){list.Add(DeserializeValue(item, elemType));}return list;}}// Deletepublic override bool TryInvoke(InvokeBinder binder, object[] args, out object result){result = (IsArray)? Delete((int)args[0]): Delete((string)args[0]);return true;}// IsDefined, if has args then TryGetMemberpublic override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result){if (args.Length > 0){result = null;return false;}result = IsDefined(binder.Name);return true;}// Deserialize or foreach(IEnumerable)public override bool TryConvert(ConvertBinder binder, out object result){if (binder.Type == typeof(IEnumerable) || binder.Type == typeof(object[])){var ie = (IsArray)? xml.Elements().Select(x => ToValue(x)): xml.Elements().Select(x => (dynamic)new KeyValuePair<string, object>(x.Name.LocalName, ToValue(x)));result = (binder.Type == typeof(object[])) ? ie.ToArray() : ie;}else{result = Deserialize(binder.Type);}return true;}private bool TryGet(XElement element, out object result){if (element == null){result = null;return false;}result = ToValue(element);return true;}public override bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result){return (IsArray)? TryGet(xml.Elements().ElementAtOrDefault((int)indexes[0]), out result): TryGet(xml.Element((string)indexes[0]), out result);}public override bool TryGetMember(GetMemberBinder binder, out object result){return (IsArray)? TryGet(xml.Elements().ElementAtOrDefault(int.Parse(binder.Name)), out result): TryGet(xml.Element(binder.Name), out result);}private bool TrySet(string name, object value){var type = GetJsonType(value);var element = xml.Element(name);if (element == null){xml.Add(new XElement(name, CreateTypeAttr(type), CreateJsonNode(value)));}else{element.Attribute("type").Value = type.ToString();element.ReplaceNodes(CreateJsonNode(value));}return true;}private bool TrySet(int index, object value){var type = GetJsonType(value);var e = xml.Elements().ElementAtOrDefault(index);if (e == null){xml.Add(new XElement("item", CreateTypeAttr(type), CreateJsonNode(value)));}else{e.Attribute("type").Value = type.ToString();e.ReplaceNodes(CreateJsonNode(value));}return true;}public override bool TrySetIndex(SetIndexBinder binder, object[] indexes, object value){return (IsArray)? TrySet((int)indexes[0], value): TrySet((string)indexes[0], value);}public override bool TrySetMember(SetMemberBinder binder, object value){return (IsArray)? TrySet(int.Parse(binder.Name), value): TrySet(binder.Name, value);}public override IEnumerable<string> GetDynamicMemberNames(){return (IsArray)? xml.Elements().Select((x, i) => i.ToString()): xml.Elements().Select(x => x.Name.LocalName);}/// <summary>Serialize to JsonString</summary>public override string ToString(){// <foo type="null"></foo> is can't serialize. replace to <foo type="null" />foreach (var elem in xml.Descendants().Where(x => x.Attribute("type").Value == "null")){elem.RemoveNodes();}return CreateJsonString(new XStreamingElement("root", CreateTypeAttr(jsonType), xml.Elements()));}}}View Code

这个代码我也依旧没仔细看，反正也能用，没出过差错。

这个最核心的拦路虎解决了，后面的事情就顺理成章的进行啦。

3.基础支持API包装

/*--------------------------------------------------------------------------* BasicAPI.cs *Auth:deepleo* Date:2013.12.31* Email:2586662969@qq.com*--------------------------------------------------------------------------*/using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net.Http;using Codeplex.Data;using System.IO;namespace Deepleo.Weixin.SDK{/// <summary>/// 对应微信API的 "基础支持"/// </summary>public class BasicAPI{/// <summary>/// 检查签名是否正确:/// http://mp.weixin.qq.com/wiki/index.php?title=%E6%8E%A5%E5%85%A5%E6%8C%87%E5%8D%97/// </summary>/// <param name="signature"></param>/// <param name="timestamp"></param>/// <param name="nonce"></param>/// <param name="token">AccessToken</param>/// <returns>/// true: check signature success/// false: check failed, 非微信官方调用!/// </returns>public static bool CheckSignature(string signature, string timestamp, string nonce, string token, out string ent){var arr = new[] { token, timestamp, nonce }.OrderBy(z => z).ToArray();var arrString = string.Join("", arr);var sha1 = System.Security.Cryptography.SHA1.Create();var sha1Arr = sha1.ComputeHash(Encoding.UTF8.GetBytes(arrString));StringBuilder enText = new StringBuilder();foreach (var b in sha1Arr){enText.AppendFormat("{0:x2}", b);}ent = enText.ToString();return signature == enText.ToString();}/// <summary>/// 获取AccessToken/// http://mp.weixin.qq.com/wiki/index.php?title=%E8%8E%B7%E5%8F%96access_token/// </summary>/// <param name="grant_type"></param>/// <param name="appid"></param>/// <param name="secrect"></param>/// <returns>access_toke</returns>public static dynamic GetAccessToken( string appid, string secrect){var url = string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type={0}&appid={1}&secret={2}", "client_credential", appid, secrect);var client = new HttpClient();var result = client.GetAsync(url).Result;if (!result.IsSuccessStatusCode) return string.Empty;var token = DynamicJson.Parse(result.Content.ReadAsStringAsync().Result);return token;}/// <summary>/// 上传多媒体文件/// http://mp.weixin.qq.com/wiki/index.php?title=%E4%B8%8A%E4%BC%A0%E4%B8%8B%E8%BD%BD%E5%A4%9A%E5%AA%92%E4%BD%93%E6%96%87%E4%BB%B6/// 1.上传的媒体文件限制：///图片（image) : 1MB，支持JPG格式///语音（voice）：1MB，播放长度不超过60s，支持MP4格式///视频（video）：10MB，支持MP4格式///缩略图（thumb)：64KB，支持JPG格式///2.媒体文件在后台保存时间为3天，即3天后media_id失效/// </summary>/// <param name="token"></param>/// <param name="type"></param>/// <param name="file"></param>/// <returns>media_id</returns>public static string UploadMedia(string token, string type, string file){var url = string.Format("http://api.weixin.qq.com/cgi-bin/media/upload?access_token={0}&type={1}&filename={2}", token, type, Path.GetFileName(file));var client = new HttpClient();var result = client.PostAsync(url, new StreamContent(new FileStream(file, FileMode.Open, FileAccess.Read)));if (!result.Result.IsSuccessStatusCode) return string.Empty;var media = DynamicJson.Parse(result.Result.Content.ReadAsStringAsync().Result);return media.media_id;}}}View Code

4.发送消息包装

/*--------------------------------------------------------------------------* SendMessageAPI.cs *Auth:deepleo* Date:2013.12.31* Email:2586662969@qq.com*--------------------------------------------------------------------------*/using System;using System.Collections.Generic;using System.Linq;using System.Text;using Codeplex.Data;using System.Net;using System.Net.Http;namespace Deepleo.Weixin.SDK{/// <summary>/// 对应微信API的 "发送消息”/// </summary>public class SendMessageAPI{/// <summary>/// 被动回复消息/// </summary>/// <param name="message">微信服务器推送的消息</param>/// <param name="executor">用户自定义的消息执行者</param>/// <returns></returns>public static string Relay(WeixinMessage message, IWeixinExecutor executor){return executor.Execute(message);}/// <summary>/// 主动发送客服消息/// http://mp.weixin.qq.com/wiki/index.php?title=%E5%8F%91%E9%80%81%E5%AE%A2%E6%9C%8D%E6%B6%88%E6%81%AF/// 当用户主动发消息给公众号的时候/// 开发者在一段时间内（目前为24小时）可以调用客服消息接口，在24小时内不限制发送次数。/// </summary>/// <param name="token"></param>/// <param name="msg">json格式的消息，具体格式请参考微信官方API</param>/// <returns></returns>public static bool Send(string token, string msg){var client = new HttpClient();var task = client.PostAsync(string.Format("https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token={0}", token), new StringContent(msg)).Result;return task.IsSuccessStatusCode;}}}View Code

5.其他代码就不一一贴出来了。可以在文章最后自行下载完整代码查阅。

6.处理与微信服务器通信的WeixinController.cs,WeixinExecutor.cs

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Web;using System.Web.Mvc;using System.Xml.Linq;using Deepleo.Weixin.SDK;using Deepleo.NewTon.Web.Services;using System.Xml;using Deepleo.NewTon.Framework.Services.Admin;using Deepleo.Log;namespace Deepleo.NewTon.Web.Controllers{public class WeixinController : Controller{public WeixinController(){}/// <summary>/// 微信后台验证地址（使用Get），微信后台的“接口配置信息”的Url/// </summary>[HttpGet][ActionName("Index")]public ActionResult Get(string signature, string timestamp, string nonce, string echostr){var token = new SettingsService().Get().Token;if (string.IsNullOrEmpty(_token)) return Content("请先设置Token！");var ent = "";if (!BasicAPI.CheckSignature(signature, timestamp, nonce, _token, out ent)){new WeixinLogService().Create(new Framework.Entities.WeixinLog("get(failed)", string.Format("(get weixin)signature:{0},timestamp:{1},nonce:{2},echostr:{3},ent:{4},token:{5}",signature, timestamp, nonce, echostr, ent, _token)));return Content("参数错误！");}return Content(echostr); //返回随机字符串则表示验证通过}/// <summary>/// 用户发送消息后，微信平台自动Post一个请求到这里，并等待响应XML。/// </summary>[HttpPost][ActionName("Index")]public ActionResult Post(string signature, string timestamp, string nonce, string echostr){WeixinMessage message = null;using (var streamReader = new StreamReader(Request.InputStream)){message = AcceptMessageAPI.Parse(streamReader.ReadToEnd());}varresponse = new WeixinExecutor().Execute(message);return new ContentResult{Content = response,ContentType = "text/xml",ContentEncoding = System.Text.UTF8Encoding.UTF8};}}}View Code

/*--------------------------------------------------------------------------* WeixinExecutor.cs *Auth:deepleo* Date:2013.12.31* Email:2586662969@qq.com*--------------------------------------------------------------------------*/using System;using System.Collections.Generic;using System.Linq;using System.Web;using Deepleo.Weixin.SDK;using System.Text;using System.Text.RegularExpressions;namespace Deepleo.Weixin{public class WeixinExecutor : IWeixinExecutor{public WeixinExecutor(){}public string Execute(WeixinMessage message){var result = "";string openId = message.Body.FromUserName.Value;var myUserName = message.Body.ToUserName.Value;switch (message.Type){case WeixinMessageType.Text:string userMessage = message.Body.Content.Value;result = RepayText(openId, myUserName, "欢迎使用");break;case WeixinMessageType.Event:string eventType = message.Body.Event.Value.ToLower();string eventKey = message.Body.EventKey.Value;switch (eventType){case "subscribe":result = RepayText(openId, myUserName, "欢迎订阅");break;case "unsubscribe":result = RepayText(openId, myUserName, "欢迎再来");break;case "scan":result = RepayText(openId, myUserName, "欢迎使用");break;case "location"://用户进入应用时记录用户地理位置#region locationvar lat = message.Body.Latitude.Value.ToString();var lng = message.Body.Longitude.Value.ToString();var pcn = message.Body.Precision.Value.ToString();#endregionbreak;case "click":switch (eventKey)//refer to： Recources/menu.json{case "myaccount":#region 我的账户result = RepayText(openId, myUserName, "我的账户.");#endregionbreak;default:result = string.Format("<xml><ToUserName><![CDATA[{0}]]></ToUserName>" +"<FromUserName><![CDATA[{1}]]></FromUserName>" +"<CreateTime>{2}</CreateTime>" +"<MsgType><![CDATA[text]]></MsgType>" +"<Content><![CDATA[{3}]]></Content>" + "</xml>",openId, myUserName, DateTime.Now.ToBinary(), "没有响应菜单事件");break;}break;}break;default:result = string.Format("<xml><ToUserName><![CDATA[{0}]]></ToUserName>" +"<FromUserName><![CDATA[{1}]]></FromUserName>" +"<CreateTime>{2}</CreateTime>" +"<MsgType><![CDATA[text]]></MsgType>" +"<Content><![CDATA[{3}]]></Content>" + "</xml>",openId, myUserName, DateTime.Now.ToBinary(), string.Format("未处理消息类型:{0}", message.Type));break;}return result;}private string RepayText(string toUserName, string fromUserName, string content){return string.Format("<xml><ToUserName><![CDATA[{0}]]></ToUserName>" +"<FromUserName><![CDATA[{1}]]></FromUserName>" +"<CreateTime>{2}</CreateTime>" +"<MsgType><![CDATA[text]]></MsgType>" +"<Content><![CDATA[{3}]]></Content>" + "</xml>",toUserName, fromUserName, DateTime.Now.ToBinary(), content);}private string RepayNews(string toUserName, string fromUserName, List<WeixinNews> news){var couponesBuilder = new StringBuilder();couponesBuilder.Append(string.Format("<xml><ToUserName><![CDATA[{0}]]></ToUserName>" +"<FromUserName><![CDATA[{1}]]></FromUserName>" +"<CreateTime>{2}</CreateTime>" +"<MsgType><![CDATA[news]]></MsgType>" +"<ArticleCount>{3}</ArticleCount><Articles>",toUserName, fromUserName,DateTime.Now.ToBinary(),news.Count));foreach (var c in news){couponesBuilder.Append(string.Format("<item><Title><![CDATA[{0}]]></Title>" +"<Description><![CDATA[{1}]]></Description>" +"<PicUrl><![CDATA[{2}]]></PicUrl>" +"<Url><![CDATA[{3}]]></Url>" +"</item>",c.Title, c.Description, c.PicUrl, c.Url));}couponesBuilder.Append("</Articles></xml>");return couponesBuilder.ToString();}}public class WeixinNews{public string Title { set; get; }public string Description { set; get; }public string PicUrl { set; get; }public string Url { set; get; }}}以上就是分享一篇基于.NET的微信SDK的详细内容，更多请关注小潘博客其它相关文章！