微信授权(Net Mvc)

项目结构

WeiXinController.cs

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.IO; using System.Text; using System.Xml; using System.Net; using Newtonsoft.Json; using WeChat2.Models; namespace WeChat2.Controllers { using Senparc.Weixin.MP; public class WeiXinController : Controller { string token = "garfieldzf8"; string appID = "wx3475193134aa161e"; string appsecret = "10c0994def4d52442a2edde4ce1843cf"; [HttpGet] [ActionName("Index")] public ActionResult Get(string signature, string timestamp, string nonce, string echostr) { if (CheckSignature.Check(signature, timestamp, nonce, token)) { return Content(echostr); } else { return Content("err"); } } [HttpPost] [ActionName("Index")] public ActionResult Get(string signature, string timestamp, string nonce) { StreamReader sr = new StreamReader(Request.InputStream, Encoding.UTF8); XmlDocument doc = new XmlDocument(); doc.Load(sr); sr.Close(); sr.Dispose(); WxMessage wxMessage = new WxMessage(); wxMessage.ToUserName = doc.SelectSingleNode("xml").SelectSingleNode("ToUserName").InnerText; wxMessage.FromUserName = doc.SelectSingleNode("xml").SelectSingleNode("FromUserName").InnerText; wxMessage.MsgType = doc.SelectSingleNode("xml").SelectSingleNode("MsgType").InnerText; wxMessage.CreateTime = int.Parse(doc.SelectSingleNode("xml").SelectSingleNode("CreateTime").InnerText); Log(wxMessage.ToUserName + "," + wxMessage.FromUserName + "," + wxMessage.MsgType); if (wxMessage.MsgType == "event") { wxMessage.EventName = doc.SelectSingleNode("xml").SelectSingleNode("Event").InnerText; Log(wxMessage.EventName); if (!string.IsNullOrEmpty(wxMessage.EventName) && wxMessage.EventName == "subscribe") { string content = "您好，欢迎访问garfieldzf8测试公众平台\n"; content += "<a href=‘" + Request.Url.Host + Url.Action("OAuthSnsApiBase") + "‘>SnsApiBase</a>\n"; content += "<a href=‘" + Request.Url.Host + Url.Action("OAuthSnsApiUserInfo") + "‘>SnsApiUserInfo</a>"; content = SendTextMessage(wxMessage, content); Log(content); return Content(content); } } return Content(""); } private string SendTextMessage(WxMessage wxmessage, string content) { string result = string.Format(Message, wxmessage.FromUserName, wxmessage.ToUserName, DateTime.Now.Ticks, content); return result; } /** * snsapi_base * **/ public ActionResult OAuthSnsApiBase() { string code = Request.QueryString["code"]; try { if (!string.IsNullOrEmpty(code)) { OAuthToken oauthToken = HttpUtility.Get<OAuthToken>(string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", appID, appsecret, code)); string accesstoken = string.Empty; AccessToken token = HttpUtility.Get<AccessToken>(string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", appID, appsecret)); if (token != null && !string.IsNullOrEmpty(token.access_token)) { accesstoken = token.access_token; } if (oauthToken != null && !string.IsNullOrEmpty(oauthToken.openid)) { OAuthUserInfo userInfo = HttpUtility.Get<OAuthUserInfo>(string.Format("https://api.weixin.qq.com/cgi-bin/user/info?access_token={0}&openid={1}&lang=zh_CN", accesstoken, oauthToken.openid)); if (userInfo != null) { Log("获取到用户信息nickName:" + userInfo.nickname); ViewData["headImage"] = userInfo.headimgurl; ViewData["openid"] = userInfo.openid; ViewData["nickName"] = userInfo.nickname; if (userInfo.sex == 0) { ViewData["sex"] = "未知"; } else if (userInfo.sex == 1) { ViewData["sex"] = "男"; } else { ViewData["sex"] = "女"; } ViewData["province"] = userInfo.province; ViewData["city"] = userInfo.city; } else { Log("未获取到用户信息"); } } else { Log("access_token:" + oauthToken.access_token + ",openid:" + oauthToken.openid); } } else { return Redirect(string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_base&state=123456#wechat_redirect", appID, "http://" + Request.Url.Host + Url.Action("OAuthSnsApiBase"))); } } catch (Exception ex) { Log(ex.Message); ViewData["errmsg"] = ex.Message; } return View(); } /** * snsapi_userinfo * **/ public ActionResult OAuthSnsApiUserInfo() { string code = Request.QueryString["code"]; try { if (!string.IsNullOrEmpty(code)) { OAuthToken oauthToken = HttpUtility.Get<OAuthToken>(string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", appID, appsecret, code)); if (oauthToken != null && !string.IsNullOrEmpty(oauthToken.openid) && !string.IsNullOrEmpty(oauthToken.access_token)) { OAuthUserInfo userInfo = Get<OAuthUserInfo>(string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN", oauthToken.access_token, oauthToken.openid)); if (userInfo != null) { Log("获取到用户信息nickName:" + userInfo.nickname); ViewData["headImage"] = userInfo.headimgurl; ViewData["openid"] = userInfo.openid; ViewData["nickName"] = userInfo.nickname; if (userInfo.sex == 0) { ViewData["sex"] = "未知"; } else if (userInfo.sex == 1) { ViewData["sex"] = "男"; } else { ViewData["sex"] = "女"; } ViewData["province"] = userInfo.province; ViewData["city"] = userInfo.city; } else { Log("未获取到用户信息"); } } else { Log("access_token:" + oauthToken.access_token + ",openid:" + oauthToken.openid); } } else { return Redirect(string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_userinfo&state=123456#wechat_redirect", appID, Server.UrlEncode("http://" + Request.Url.Host + Url.Action("OAuthSnsApiUserInfo")))); } } catch (Exception ex) { Log(ex.Message); ViewData["errmsg"] = ex.Message; } return View(); } //被动回复用户消息 public string Message { get { return @"<xml> <ToUserName><![CDATA[{0}]]></ToUserName> <FromUserName><![CDATA[{1}]]></FromUserName> <CreateTime>{2}</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[{3}]]></Content> </xml>"; } } private void Log(string text) { string str = Server.MapPath("~/Log/") + "log.txt"; FileStream fs = new FileStream(str, FileMode.Append, FileAccess.Write); StreamWriter sr = new StreamWriter(fs); sr.WriteLine(DateTime.Now + " : " + text); sr.Close(); fs.Close(); } public T Get<T>(string url) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "get"; request.Timeout = 2000; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader sr = new StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8); string result = sr.ReadToEnd(); Log("result:" + result); return JsonConvert.DeserializeObject<T>(result); } } public class HttpUtility { public static T Get<T>(string url) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); request.Method = "get"; request.Timeout = 2000; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader sr = new StreamReader(response.GetResponseStream(), System.Text.Encoding.UTF8); string result = sr.ReadToEnd(); return JsonConvert.DeserializeObject<T>(result); } } }

实体类

OAuthToken.cs

using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace WeChat2.Models { public class OAuthToken { public string access_token { get; set; } public int expires_in { get; set; } public string refresh_token { get; set; } public string openid { get; set; } public string scope { get; set; } } public class AccessToken { public string access_token { get; set; } public int expires_in { get; set; } } public class OAuthUserInfo { public string openid { get; set; } public string nickname { get; set; } public int sex { get; set; } public string province { get; set; } public string city { get; set; } public string country { get; set; } public string headimgurl { get; set; } public string privilege { get; set; } public string unionid { get; set; } } }

WxMessage.cs

using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace WeChat2.Models { public class WxMessage { public string ToUserName { get; set; } public string FromUserName { get; set; } public long CreateTime { get; set; } public string Content { get; set; } public string MsgType { get; set; } public string EventName { get; set; } public string EventKey { get; set; } } }

视图

OAuthSnsApiBase.cshtml

@{
    Layout = null;
}
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <title>OAuthSnsApiBase</title> </head> <body> <h1>OAuthSnsApiBase</h1> @if (ViewData["errmsg"] != null) { <h1>@ViewData["errmsg"]</h1> } else { <h2>@ViewData["nickName"]</h2> <h2>@ViewData["sex"]</h2> <h2>@ViewData["province"]</h2> <h2>@ViewData["city"]</h2> <h2>@ViewData["headImage"]</h2> } </body> </html>

OAuthSnsApiUserInfo.cshtml


@{ Layout = null; } <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <title>OAuthSnsApiUserInfo</title> </head> <body> <h1>OAuthSnsApiUserInfo</h1> @if (ViewData["errmsg"] != null) { <h1>@ViewData["errmsg"]</h1> } else { <h2>@ViewData["nickName"]</h2> <h2>@ViewData["sex"]</h2> <h2>@ViewData["province"]</h2> <h2>@ViewData["city"]</h2> <h2>@ViewData["headImage"]</h2> } </body> </html>