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@Aiti 2020-03-12T02:28:38.000000Z 字数 9311 阅读 241

微信开发

微信开发

需求：通过关注微信号获取第三方平台的任务

1、服务号或者公众号
2、自己的服务器
3、第三方平台

1.服务号配置

  1. 接口配置信息
    请填写接口配置信息，此信息需要你有自己的服务器资源，填写的URL需要正确响应微信发送的Token验证
    URL:http://js.wx.bim999.cn/WeiXin/Message
    Token:bim999

  2. JS接口安全域名
    设置JS接口安全域后，通过关注该测试号，开发者即可在该域名下调用微信开放的JS接口
    域名:js.wx.bim999.cn

2.服务器配置（基于MVC开发）

  1. 基本信息配置.Json
  1. {
  2.   "AppSettings": {
  3.     "DbConnectionString": "Data Source=192.168.1.240;Initial Catalog=BimWeixin;User Id=sa;Password=cx1234;", 
  4.     "AppId": "wxfb1254572c7bac44",
  5.     "AppSecret": "2632267b19bd3373f87ad15c84f6cf68",
  6.     "RedirectUri": "http://js.wx.bim999.cn/weixin/oauth" 
  7.   },
  8.     "ApplicationInsights": {
  9.         "InstrumentationKey": ""
  10.     },
  11.     "Logging": {
  12.         "IncludeScopes": false,
  13.         "LogLevel": {
  14.             "Default": "Debug",
  15.             "System": "Information",
  16.             "Microsoft": "Information"
  17.         }
  18.     }
  19. }

2.验证接口配置并验证（浏览器直接打开http://js.wx.bim999.cn/WeiXin/Message）

  1. //控制器WeiXin.CS
  2. MVC是先调用控制器，再根据控制器调用页面（不是根据页面调用控制器）。控制器默认进入先Index
  3.  public IActionResult Index()
  4. {
  5.     return View();
  6. }
  8.  private const string VerifyToken = "bim999";
  10.     public IActionResult Message(string signature, string timestamp, string nonce, string echostr)
  11.     {
  12.         //返回随机字符串则表示验证通过
  13.         //using Senparc.Weixin.MP.CheckSignature.Check(检查签名是否正确);
  14.         if (CheckSignature.Check(signature, timestamp, nonce, VerifyToken))
  15.         return Content(echostr);
  17.         return View();
  18.     }
  1. //页面Message.cxhtml
  2. @{
  3.     ViewBag.Title = "微信回调地址";
  4. }
  5. <h4>如果您在浏览器中看到这条信息，表明此Url可以填入微信后台</h4>

3.第三方平台配置

  1. 关注服务号，并扫码绑定系统（即把系统的账号和微信号进行关联绑定）
  1. protected void Page_Load(object sender, EventArgs e)
  2. {
  3.  var url = $"https://js.wx.bim999.cn/weixin/getoauthurl?pid={ pid }&uid={ uid }";
  4.  var request = (HttpWebRequest)WebRequest.Create(url);
  5.     //获取接受到网址的内容
  6.     using (var response = (HttpWebResponse)request.GetResponse())
  7.     {
  8.         using (var sr = new System.IO.StreamReader(response.GetResponseStream(), Encoding.UTF8))
  9.         {
  10.             //获取二维码地址
  11.             // QRImg.ImageUrl = sr.ReadToEnd(); 
  12.             //获取值生成二维码
  13.             CreateQR(HttpUtility.UrlDecode(sr.ReadToEnd()));
  14.         }
  15.     }
  16.  }   
  17. private void CreateQR(string nr)
  18. {
  19.     Bitmap bt;
  20.     if (!string.IsNullOrEmpty(nr))
  21.     {
  22.         string filename = Guid.NewGuid().ToString().ToUpper();
  23.         QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
  24.         qrCodeEncoder.QRCodeVersion = 0;
  25.         bt = qrCodeEncoder.Encode(nr, Encoding.UTF8);
  26.         string imgPath = Server.MapPath("~/ImageQR/") + filename + ".jpg";
  27.         try
  28.         {
  29.             bt.Save(imgPath);
  30.             QRImg.ImageUrl = "~/ImageQR/" + filename + ".jpg";
  31.         }
  32.         catch (Exception)
  33.         {
  35.         }
  36.     }
  37. }

4.服务器逻辑处理

  1. //扫码绑定调用的是
  2. public string GetOAuthUrl(int pid, string uid)
  3. {
  4.     if (pid <= 0) return "非法参数";
  6.     uid = (uid + "").Trim();
  7.     if (uid.Length <= 0) return "非法参数";
  9.     var requestId = Guid.NewGuid().ToString("N");
  11.     //写入绑定请求
  12.     using (var conn = SqlHelper.GetConn())
  13.     {
  14.         conn.Execute("INSERT INTO BindRequest(RequestId,Pid,Uid,DoTime) VALUES(@requestId,@pid,@uid,GETDATE());", new { requestId, pid, uid });
  15.     }
  16.     //此处验证是否关注服务号，关注了就跳转到配置信息中RedirectUri="http://js.wx.bim999.cn/weixin/OAuth" 
  17.    var url = OAuthApi.GetAuthorizeUrl(BimWxConfig.AppId, BimWxConfig.RedirectUri, requestId,
  18.         OAuthScope.snsapi_userinfo);
  20.     //返回值 去本地生成二维码
  21.     return Uri.EscapeDataString(url);
  22. }
  25.  public IActionResult OAuth(string code, string state, string returnUrl)
  26. {
  27.     if ((code = code + "").Length > 3) //获取 AccessToken
  28.     {
  29.         var token = OAuthApi.GetAccessToken(BimWxConfig.AppId, BimWxConfig.AppSecret, code);
  30.         if (token.errcode != ReturnCode.请求成功)
  31.         {
  32.             ViewBag.Message = token.errcode.ToString();
  33.         }
  34.         else //处理授权结果
  35.         {
  36.             string wxOpenId = token.openid;
  37.             if ((state = state + "").Length == 32)
  38.             {
  39.                 #region 绑定用户
  40.                 using (var conn = SqlHelper.GetConn())
  41.                 {
  42.                     conn.Open();
  43.                     var request = conn.Query("SELECT Pid,Uid,RequestId FROM BindRequest WHERE RequestId=@state", new { state }).FirstOrDefault();
  44.                     if (request == null)
  45.                     {
  46.                         ViewBag.Message = "绑定用户失败，请重新登录PC平台扫描二维码！";
  47.                     }
  48.                     else
  49.                     {
  50.                         var trans = conn.BeginTransaction();
  52.                         var bindUser = new
  53.                         {
  54.                             request.RequestId,
  55.                             request.Pid,
  56.                             request.Uid,
  57.                             WxOpenId = token.openid
  58.                         };
  60.                         conn.Execute("UPDATE BindRequest SET SuccessTime=GETDATE() WHERE RequestId=@RequestId", bindUser, trans);
  61.                         conn.Execute("DELETE FROM PlatformUser WHERE Pid=@Pid AND Uid=@Uid", bindUser, trans);
  63.                         conn.Execute("INSERT INTO PlatformUser(WxOpenId,Pid,Uid) VALUES(@WxOpenId,@Pid,@Uid)", bindUser, trans);
  65.                         trans.Commit();
  66.                     }
  67.                 }
  68.                 wxOpenId = token.openid;
  69.                 #endregion
  70.             }
  72.             #region [异步] 更新微信用户信息
  73.             Task.Factory.StartNew(() =>
  74.             {
  75.                 var user = OAuthApi.GetUserInfo(token.access_token, token.openid);
  76.                 if (user.openid != token.openid) return;
  78.                 //将获取到的用户信息更新到数据库中
  79.                 using (var conn = SqlHelper.GetConn())
  80.                 {
  81.                     conn.Open();
  82.                     var trans = conn.BeginTransaction();
  84.                     conn.Execute("DELETE FROM WxUser WHERE WxOpenId=@openid", user, trans);
  85.                     conn.Execute(
  86.                         "INSERT INTO WxUser(WxOpenId,Nick,Sex,Province,City,Country,HeadImgUrl) VALUES(@openid,@nickname,@sex,@province,@city,@country,@headimgurl)",
  87.                         user, trans);
  89.                     trans.Commit();
  90.                 }
  91.             });
  92.             #endregion
  94.             //有效的 WxOpenid，设置 Session 并跳转到 MyJob 页面
  95.             if (wxOpenId != null)
  96.             {
  97.                 HttpContext.Session.SetString("WxOpenId", token.openid);
  98.                 if (!string.IsNullOrEmpty(returnUrl))
  99.                 {
  100.                     return Redirect(returnUrl);
  101.                 }else
  102.                     return RedirectToAction("myjob");
  103.             }
  104.         }
  105.     }
  107.     return View();
  108. }
  110. public IActionResult MyJob()
  111. {
  112.     var wxOpenId = HttpContext.Session.GetString("WxOpenId");
  113.     if (string.IsNullOrWhiteSpace(wxOpenId)) //没有 OpenId 跳转到微信授权重新获取
  114.         return Redirect(OAuthApi.GetAuthorizeUrl(BimWxConfig.AppId, BimWxConfig.RedirectUri, nameof(MyJob), OAuthScope.snsapi_userinfo));
  116.     List<dynamic> jobs;
  118.     //获取平台信息
  119.     using (var conn = SqlHelper.GetConn())
  120.     {
  121.         jobs = conn.Query(@"SELECT a.Uid,b.ShortName 'JobName',b.ServerUrl 'Content' 
  122.                             FROM PlatformUser a JOIN Platform b ON a.Pid=b.Id
  123.                             WHERE a.WxOpenId=@wxOpenId", new { wxOpenId }).ToList();
  124.     }
  126.     //请求平台API，获取具体的内容
  127.     foreach (var job in jobs)
  128.     {
  129.         job.Content = HttpHelper.HttpGet(job.Content, "uid=" + job.Uid);
  130.     }
  132.     return View(jobs);
  133. }
  1. //获取任务页面MyJob.cshtml
  2. @model List<dynamic>
  3. @{
  4.     ViewBag.Title = "我的任务";
  5. }
  7. @if (Model.Count > 0)
  8. {
  9.     <ul class="collapsible popout" data-collapsible="accordion">
  10.         @foreach (var job in Model)
  11.         {
  12.             <li>
  13.                 <div class="collapsible-header">@job.JobName</div>
  14.                 <div class="collapsible-body">@Html.Raw(job.Content)</div>
  15.             </li>
  16.         }
  18.         <li>
  19.             <div class="collapsible-header">建党平台</div>
  20.             <div class="collapsible-body">这里是建党平台放回的数据内容</div>
  21.         </li>
  22.     </ul>
  23. }
  24. else
  25. {
  26.     <h4>当前微信号无法查看任务！</h4>
  27. }
  30. @section script{
  31.     <script>
  32.         $(function () {
  33.             $(".collapsible-header").first().addClass("active");
  34.             $(".collapsible").collapsible();
  35.         })
  36.     </script>
  37. }

需求：获取微信定位用于签到

1、服务号

  1. //控制器
  2. namespace Bim999.Weixin.Controllers
  3. {
  4.     public class SignController : Controller
  5.     {
  6.         // GET: /<controller>/
  7.         public void Index(int id)
  8.         {
  9.             var state="bim999_" + DateTime.Now.Millisecond;
  10.             HttpContext.Session.SetString("State", state) ;//储存随机数到Session
  11.             var url=(OAuthApi.GetAuthorizeUrl(BimWxConfig.AppId, BimWxConfig.RedirectUri+ "?returnUrl=/sign/sign?id=" + id, state, OAuthScope.snsapi_userinfo));
  12.             Response.WriteAsync($"<script>location.href='{url}';</script>");
  13.         }
  15.         public IActionResult Sign(string id)
  16.         {
  17.             var jssdk = JSSDKHelper.GetJsSdkUiPackage(BimWxConfig.AppId, BimWxConfig.AppSecret, HttpContext.Request.GetAbsoluteUri());
  18.             ViewBag.TaskId = id; 
  19.             return View(jssdk);
  20.         }
  22.         public IActionResult SignPage(string id,string latitude,string longitude)
  23.         {
  24.             var wxOpenId = HttpContext.Session.GetString("WxOpenId");
  26.             if (string.IsNullOrWhiteSpace(wxOpenId)) //没有 OpenId 跳转到微信授权重新获取
  27.                 return Redirect(OAuthApi.GetAuthorizeUrl(BimWxConfig.AppId, BimWxConfig.RedirectUri, nameof(Sign), OAuthScope.snsapi_userinfo));
  29.             List<dynamic> jobs;
  31.             //获取平台信息
  32.             using (var conn = SqlHelper.GetConn())
  33.             {
  34.                 jobs = conn.Query(@"SELECT a.Uid,b.ShortName 'JobName',b.ServerUrl 'Content' 
  35.                                     FROM PlatformUser a JOIN Platform b ON a.Pid=b.Id
  36.                                     WHERE a.WxOpenId=@wxOpenId", new { wxOpenId }).ToList();
  37.             }
  38.             foreach (var job in jobs)
  39.             {
  40.                 ViewBag.UId = job.Uid;
  41.                 ViewBag.Content = job.Content;
  42.                 ViewBag.TaskId = id;
  44.             }
  46.             var url = ViewBag.Content + "?UId=" + ViewBag.UId + "&TaskId=" + ViewBag.TaskId + "&latitude=" + latitude + "&longitude=" + longitude;
  47.             ViewBag.Text = url;
  48.             //后台请求第三方链接进行签到处理
  49.             ViewBag.Textss = HttpHelper.HttpGet(url);
  50.             return View();
  51.         }
  52.     }
  53. }

HttpHelper.HttpGet(url)

  1. /// <summary>
  2. /// 同步方式发起http get请求
  3. /// </summary>
  4. /// <param name="url">请求URL</param>
  5. /// <param name="queryString">参数字符串</param>
  6. /// <returns>请求返回值</returns>
  7. public static string HttpGet(string url, string queryString = null)
  8. {
  9.     if (!string.IsNullOrEmpty(queryString))
  10.         url += "?" + queryString.Trim(' ', '?', '&');
  12.     var webRequest = WebRequest.Create(url) as HttpWebRequest;
  13.     if (webRequest == null) return null;
  15.     webRequest.Method = "GET";
  16.     webRequest.ContinueTimeout = 200000;
  18.     return WebResponseGet(webRequest);
  19. }
  20. /// <summary>
  21. /// 同步方式发起http post请求
  22. /// </summary>
  23. /// <param name="url">请求URL</param>
  24. /// <param name="queryString">参数字符串</param>
  25. /// <returns>请求返回值</returns>
  26. public static string HttpPost(string url, string queryString = null)
  27. {
  28.     HttpWebRequest webRequest = WebRequest.Create(url) as HttpWebRequest;
  29.     if (webRequest == null) return null;
  31.     webRequest.Method = "POST";
  32.     webRequest.ContentType = "application/x-www-form-urlencoded";
  33.     webRequest.ContinueTimeout = 20000;
  35.     //POST the data.
  36.     using (var requestWriter = new StreamWriter(webRequest.GetRequestStreamAsync().Result))
  37.     {
  38.         requestWriter.Write(queryString);
  39.     }
  41.     return WebResponseGet(webRequest);
  42. }

//页面Sign.cshtml(页面调用微信Js)
(重点：本页面获取的经纬度，不能传到控制器，而且！而且！而且！在本页面通过Ajax请求第三方平台，存在跨域访问的问题，所以只能控制器（后台）中请求。所以跳转页面并传参。)

  1. @model Senparc.Weixin.MP.Helpers.JsSdkUiPackage
  2. @{ Layout = null;
  3. }
  4. <html>
  5. <head>
  6.     <title>会议签到中...</title>
  7.     <script src="https://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>
  8.     <script src="//cdn.bootcss.com/jquery/3.1.1/jquery.min.js"></script>
  9.     <script>
  10.     wx.config({
  11.         debug: false,
  12.         appId: '@Model.AppId',
  13.         timestamp:'@Model.Timestamp',
  14.         nonceStr: '@Model.NonceStr',
  15.         signature: '@Model.Signature',
  16.         jsApiList: [
  17.             'checkJsApi',
  18.             'getLocation'
  19.         ]
  20.     });
  21.     wx.ready(function () {
  22.         wx.getLocation({
  23.             type: 'wgs84', // 默认为wgs84的gps坐标，如果要返回直接给openLocation用的火星坐标，可传入'gcj02'
  24.             success: function (res) {
  25.                 console.log(res);
  26.                 console.log(3);
  27.                 var latitude = res.latitude; // 纬度，浮点数，范围为90 ~ -90
  28.                 var longitude = res.longitude; // 经度，浮点数，范围为180 ~ -180。
  29.                 var speed = res.speed; // 速度，以米/每秒计
  30.                 var accuracy = res.accuracy; // 位置精度
  32.                 var url = "/sign/SignPage?id=" + '@ViewBag.TaskId' + "&latitude=" + latitude + "&longitude=" + longitude;
  33.                 location.href = url;
  34.             }
  35.         });
  36.     });
  37.     wx.error(function (res) {
  38.         //res 出错信息
  39.         console.log(res);
  40.         });
  42.     </script>
  43. </head>
  44. <body>
  45.     <div id="box" style="text-align:center;font-size:100px"></div>
  46. </body>
  47. </html>

//页面SignPage.cshtml

  1. @{ Layout = null;
  2. }
  3. <html>
  4. <head>
  5.     <title>会议签到</title> 
  6. </head>
  7. <body>
  8.     <div id="box" style="text-align:center;font-size:100px"> @ViewBag.Textss </div>
  9. </body>
  10. </html>
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