C# WeChat 공개 계정 개발 - 기본 사용자 정보를 얻기 위한 웹 페이지 인증(oauth2.0) 1

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)                        
{                                                                     
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                        
{                                                
}                    
}                    
else                    
{                                           
}                                  
}                
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)            
{                         
ViewData["errmsg"] = ex.Message;            
}                        
return View();        
}