c#实现的微信网页授权操作逻辑封装示例（c#实现的微信网页授权操作逻辑封装示例）

本文实例讲述了C#实现的微信网页授权操作逻辑封装。分享给大家供大家参考，具体如下：

一、微信网页授权登录

前提：

1.已经获取的接口权限，如果是测试账号就已经有权限了

2.配置接口的授权域名

更多说明可以参考方倍工作室：http://www.cnblogs.com/txw1958/p/weixin71-oauth20.html

或者官网API：http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html

步骤：

1.用户同意授权，获取code

2.根据code 获取access_token及当前操作用户的openid、unionid

3.根据openid获取用户基本信息(如果需要的话)

注：如果想在网站使用扫一扫，授权登录，可以讲 _oauth.GetCodeUrl() 授权地址生成二维码来使用

C#封装微信网页授权登录使用实例：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 string appid = "wx145b4a8fd07b24e8"; string appsecrect = "fe6951dcb99772411c42f724b1336065"; string redirect_url = "配置域名下的回调地址"; OAuthManage _oauth = null; /// <summary> ///控制器构造函数 /// </summary> public UserController() { _oauth = new OAuthManage(appid, appsecrect, redirect_url); } /// <summary> /// 授权登录 /// </summary> /// <returns></returns> public ActionResult AuthLogin() { ViewBag.url = _oauth.GetCodeUrl(); return View(); } /// <summary> /// 回调处理 /// </summary> /// <returns></returns> public ActionResult OAuthHandle() { string result = ""; //注册事件处理 _oauth.OnError = (e) => { string msg = ""; Exception inner = e; while (inner != null) { msg += inner.Message; inner = inner.InnerException; } result = msg; LogOperate.Write(msg); }; _oauth.OnGetTokenSuccess = (token) => { result += "<br/>"; result += token.ToJsonString(); }; _oauth.OnGetUserInfoSuccess = (user) => { result += "<br/>"; result += user.ToJsonString(); }; //第二步 _oauth.GetAccess_Token(); //第三步 _oauth.GetUserInfo(); //显示结果 ViewBag.msg = result; return View(); }

封装代码类定义：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 namespace WXPackage { /// <summary> /// 网页授权逻辑处理， /// 处理三步操作，处理成功，返回用户基本信息 /// </summary> public class OAuthManage { #region 基本信息定义 /// <summary> /// 公众号的唯一标识 /// </summary> private string appid; /// <summary> /// 公众号的appsecret /// </summary> private string secret; /// <summary> /// 回调url地址 /// </summary> private string redirect_uri; /// <summary> /// 获取微信用户基本信息使用snsapi_userinfo模式 /// 如果使用静默授权，无法获取用户基本信息但可以获取到openid /// </summary> private string scope; public OAuthManage(string appid, string appsecret, string redirect_uri, bool IsUserInfo = true) { this.appid = appid; this.secret = appsecret; this.redirect_uri = redirect_uri; this.scope = IsUserInfo ? "snsapi_userinfo" : "snsapi_base"; } #endregion #region 请求过程信息 /// <summary> /// 第一步获取到的Code 值 /// </summary> public string Code { get; set; } /// <summary> /// 第二步获取到的access_token及相关数据 /// </summary> public OAuthAccess_Token TokenData = null; #endregion #region 事件定义 /// <summary> /// 当处理出现异常时，触发 /// </summary> public Action<Exception> OnError = null; /// <summary> /// 当获取AccessToken成功是触发 /// </summary> public Action<OAuthAccess_Token> OnGetTokenSuccess = null; /// <summary> /// 当获取用户信息成功时触发 /// </summary> public Action<OAuthUser> OnGetUserInfoSuccess = null; #endregion #region 第二步,回调处理 /// <summary> /// 第二步，通过code换取网页授权access_token /// </summary> public void GetAccess_Token() { try { //1.处理跳转 this.Code = ReqHelper.GetString("code"); if (string.IsNullOrEmpty(this.Code)) throw new Exception("获取code参数失败或用户禁止授权获取基本信息"); //1.发送获取access_token请求 string url = GetAccess_TokenUrl(); string result = NetHelper.Get(url); //2.解析相应结果 TokenData = JsonConvert.DeserializeObject<OAuthAccess_Token>(result); if (TokenData == null) throw new Exception("反序列化结果失败，返回内容为：" + result); //3.获取成功 if (OnGetTokenSuccess != null) OnGetTokenSuccess(TokenData); } catch (Exception ex) { Error("第二步，通过code换取网页授权access_token异常", ex); } } /// <summary> /// 刷新当前access_token /// </summary> public OAuthAccess_Token RefreshAccess_Token() { try { //1.发送请求 string url = GetReferesh_TokenUrl(); string result = NetHelper.Get(url); //2.解析结果 OAuthAccess_Token token = JsonConvert.DeserializeObject<OAuthAccess_Token>(result); if (token == null) throw new Exception("反序列化结果失败，返回内容：" + result); return token; } catch (Exception ex) { Error("刷新当前access_token失败", ex); return null; } } #endregion #region 第三步，获取用户基本信息 /// <summary> /// 第三步，获取基本信息 /// </summary> public void GetUserInfo() { try { //1.发送get请求 string url = GetUserInfoUrl(); string result = NetHelper.Get(url); //2.解析结果 OAuthUser user = JsonConvert.DeserializeObject<OAuthUser>(result); if (user == null) throw new Exception("反序列化结果失败，返回内容：" + result); //3.获取成功 if (OnGetUserInfoSuccess != null) OnGetUserInfoSuccess(user); } catch (Exception ex) { Error("第三步、获取用户基本信息异常", ex); } } #endregion #region 静态方法 /// <summary> /// 验证授权凭证是否有效 /// </summary> /// <param name="access_token">access_token</param> /// <param name="openid">用户针对当前公众号的openid</param> /// <returns></returns> public static bool CheckWebAccess_Token(string access_token, string openid) { try { string url = string.Format("https://api.weixin.qq.com/sns/auth?access_token={0}&openid={1}", access_token, openid); string result = NetHelper.Get(url); JObject obj = JObject.Parse(result); int errcode = (int)obj["errcode"]; return errcode == 0; } catch (Exception ex) { throw new Exception("，" + ex.Message); } } #endregion #region 获取请求连接 /// <summary> /// 获取Code的url 地址 /// </summary> /// <returns></returns> public string GetCodeUrl() { string url = string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope={2}&state=STATE#wechat_redirect", this.appid, SecurityHelper.UrlEncode(this.redirect_uri), this.scope); return url; } /// <summary> /// 获取access_token的url地址 /// </summary> /// <returns></returns> private string GetAccess_TokenUrl() { string url = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", this.appid, this.secret, this.Code); return url; } /// <summary> /// 获取刷新AccessToke的地址 /// </summary> /// <returns></returns> private string GetReferesh_TokenUrl() { string url = string.Format("https://api.weixin.qq.com/sns/oauth2/refresh_token?appid={0}&grant_type=refresh_token&refresh_token={1}", this.appid, this.TokenData.refresh_token ); return url; } /// <summary> /// 获取用户基本信息地址 /// </summary> /// <returns></returns> private string GetUserInfoUrl() { string url = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN", this.TokenData.access_token, this.TokenData.openid); return url; } #endregion private void Error(string msg, Exception inner) { if (this.OnError != null) { this.OnError(new Exception(msg, inner)); } } } /// <summary> /// 授权之后获取用户基本信息 /// </summary> public class OAuthUser { 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; } /// <summary> /// 用户特权信息，json 数组 /// </summary> public JArray privilege { get; set; } public string unionid { get; set; } } /// <summary> /// 获取Access_Token或者刷新返回的数据对象 /// </summary> public class OAuthAccess_Token { public string access_token { get; set; } public int expires_in { get; set; } public string refresh_token { get; set; } /// <summary> /// 用户针对当前公众号的唯一标识 /// 关注后会产生，返回公众号下页面也会产生 /// </summary> public string openid { get; set; } public string scope { get; set; } /// <summary> /// 当前用户的unionid，只有在用户将公众号绑定到微信开放平台帐号后 /// </summary> public string unionid { get; set; } } }