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所属分类：.NET技术
网站接入qq登录可以省去注册账号，增加网站的体验度。那么要实现我自己搭建的站点天天博客的qq单点登录需要以下几个步骤：
1，申请appid和appkey
首先要去https://connect.qq.com/去申请一个网站的qq接入，申请成功时会给一个appid和appkey，前提是要有一个站点。
2，qq登录跳转
申请成功后，开始进行qq登录开发，根据官方文档，需要在放置一个qq登录的图标，然后点击这个图标跳转qq认证登录页。
如下图：
点击登录之后会跳转到相应的页面如下：要确保你的回调页面和申请里面写的一样并且要将url进行URLEncode
当qq登录成功后悔跳转到回调页面，并且会在url里面带上上Authorization Code的值。
3，获取AccessToken
通过Authorization Code获取Access Token，我选择通过后端代码调用，因为前段会出现跨域问题，以下是我的封装的方法
/// <summary> /// 获取AccessToken /// </summary> /// <param name="authorizationCode"></param> /// <returns></returns> public static async Task<string> GetAccessToken(string authorizationCode) { if (string.IsNullOrEmpty(authorizationCode)) throw new AuthException("qq认证登录失败：authorizationCode为空"); string url = string.Format("https://graph.qq.com/oauth2.0/token?" + "grant_type=authorization_code&client_id={0}&client_secret={1}&code={2}&redirect_uri={3}&fmt=json", appId, appKey, authorizationCode, redirectUrl); HttpClient httpClient = new HttpClient(); string response = await httpClient.GetStringAsync(url); dynamic result = JsonHelper.DeserializeObject(response); string error = result.error; if (!string.IsNullOrEmpty(error)) throw new AuthException("qq认证登录失败：" + result.error_description); return result.access_token; }
4，获取openid
通过token获取openid，其中openid就想当与一个qq号码，唯一的：
/// <summary> /// 获取OpenId /// </summary> /// <param name="authorizationCode"></param> /// <returns></returns> public static async Task<string> GetOpenId(string accessToken) { if (string.IsNullOrEmpty(accessToken)) throw new AuthException("qq认证登录失败：accessToken无效"); string url = "https://graph.qq.com/oauth2.0/me?fmt=json&access_token=" + accessToken; HttpClient httpClient = new HttpClient(); string response = await httpClient.GetStringAsync(url); dynamic result = JsonHelper.DeserializeObject(response); string error = result.error; if (!string.IsNullOrEmpty(error)) throw new AuthException("qq认证登录失败："+result.error_description); return result.openid; }
5，通过token和openid获取qq信息：
/// <summary> /// 获取qq信息 /// </summary> /// <param name="authorizationCode"></param> /// <returns></returns> public static async Task<UserModel> GetQQUser(string accessToken,string openId) { if (string.IsNullOrEmpty(accessToken)) throw new AuthException("accessToken无效"); if (string.IsNullOrEmpty(openId)) throw new AuthException("openId"); string url = string.Format("https://graph.qq.com/user/get_user_info" + "?access_token={0}&openid={1}&appid={2}&fmt=json", accessToken, openId, appId); HttpClient httpClient = new HttpClient(); string response = await httpClient.GetStringAsync(url); dynamic result = JsonHelper.DeserializeObject(response); if (result.ret != 0) throw new AuthException("qq认证登录失败：" + result.msg); UserModel userModel = new UserModel(); userModel.Account = openId; userModel.Username = result.nickname; userModel.LoginType = Blog.Domain.Core.LoginType.QQ; userModel.Sex = result.gender; userModel.HeadPhoto = result.figureurl_qq_2; return userModel; }
6，处理qq信息
到此，qq账号的信息以及获取完成了，接下来就是根据自己的业务来处理qq账号信息了，我选择将qq信息存入user表，后端将qq信息转为对应的user，放入jwt里面生成token:
[Route("login/{code}")] [HttpGet] public async Task<ApiResult> Login(string code) { string accessToken =await QQClient.GetAccessToken(code); string openId = await QQClient.GetOpenId(accessToken); UserModel userModel = await QQClient.GetQQUser(accessToken, openId); _userService.Insert(userModel); IList<Claim> claims = new List<Claim>() { new Claim("account", userModel.Account), new Claim("username", userModel.Username), new Claim("sex", userModel.Sex), new Claim("birthDate",string.IsNullOrEmpty(userModel.BirthDate)?"":userModel.BirthDate), new Claim("email", string.IsNullOrEmpty(userModel.Email)?"":userModel.Email), new Claim("sign", string.IsNullOrEmpty(userModel.Sign)?"":userModel.Sign), new Claim("phone",string.IsNullOrEmpty(userModel.Phone)?"":userModel.Phone), new Claim("headPhoto", string.IsNullOrEmpty(userModel.HeadPhoto)?"":userModel.HeadPhoto) }; string jwtToken = new JWT(_cacheClient).CreateToken(claims); return ApiResult.Success(jwtToken); }
7，前端存储token
qq登录后根据你申请里面写的回调页面，qq会自动跳转到这个页面，我的回调页面就一个空白页面，加上一个loading提示，加载这个页面时，调用后端api，进行认证操作，成功后，存入token并且跳转到网站首页：
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width = device-width" /> <title>qq认证登录中...</title> <link rel="icon" href="/style/images/title.png"> </head> <body> <div> qq认证登录中... </div> <script src="/style/js/jquery.js"></script> <script src="/style/layui/layui.js"></script> <script src="/style//js/request.js?v=20112171144"></script> <script src="/style/js/util.js?v=202009091015"></script> <script> layui.use(["layer"], function () { var layer = layui.layer; var loading = layer.load(2,{offset: ['100px', '720px']}); var code = getSearchString('code'); if(code==undefined){ layer.msg('code无效', { icon: 5 }); return; } $.ajax({ url: url + 'qq/login/' + code, type: 'get', dataType: 'json', success: function (res) { if (res.code == "200") { localStorage.setItem("token", res.data); window.location.href = "../home/index.html"; } else { layer.close(loading) layer.msg(res.message, { icon: 5 }); } } }) }) </script> </body> </html>
通过以上操作，我的个人站点：http://www.ttblog.site已经是完成了qq接入的功能，这只是我自己摸索出来的实现方式，给以参考，设计之中难免有不合理之处，希望有人能给出建议。
