微信授权(Net Mvc)

红太狼 2021-06-26 16:06 511阅读 0赞

## 项目结构 ##

![在这里插入图片描述][20181013233200408]

## 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>

[20181013233200408]: /images/20210626/e7458e24009d4897958ca31b170bb1ac.png