/**
*
* 网页授权获取用户基本信息的全部过程
* 详情请参看网页授权获取用户基本信息：http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html
* 第一步：利用url跳转获取code
* 第二步：利用code去获取openid和access_token
*
* scope为snsapi_base
* https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx520c15f417810387&redirect_uri=https%3A%2F%2Fchong.qq.com%2Fphp%2Findex.php%3Fd%3D%26c%3DwxAdapter%26m%3DmobileDeal%26showwxpaytitle%3D1%26vb2ctag%3D4_2030_5_1194_60&response_type=code&scope=snsapi_base&state=123#wechat_redirect
* scope为snsapi_userinfo
* https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxf0e81c3bee622d60&redirect_uri=http%3A%2F%2Fnba.bluewebgame.com%2Foauth_response.php&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect
*/
public NGWebOAuth2Ticket GetOpenidAndAccessToken(string scope_flag)
{
if (!string.IsNullOrEmpty(HttpContext.Current.Request.QueryString["code"]))
{
//获取code码，以获取openid和access_token
string code = HttpContext.Current.Request.QueryString["code"];
Log.Debug(this.GetType().ToString(), "Get code : " + code);
NGWebOAuth2Ticket mod = GetOpenidAndAccessTokenFromCode(code);
return(mod);
}
else
{
//构造网页授权获取code的URL
string host = HttpContext.Current.Request.Url.Host;
string path = HttpContext.Current.Request.Path;
int port = HttpContext.Current.Request.Url.Port;
string myquery = "";
string redirect_uri = HttpUtility.UrlEncode("http://" + host + path + myquery);
string appid = NGWeiXinConfig.appID;
string response_type = "code";
string scope = "snsapi_base";
if (scope_flag == "snsapi_userinfo")
{
scope = "snsapi_userinfo";
}
string state = "STATE" + "#wechat_redirect";
string data = "appid=" + appid + "&redirect_uri=" + redirect_uri + "&response_type=" + response_type + "&scope=" + scope + "&state" + state;
string url = "https://open.weixin.qq.com/connect/oauth2/authorize?" + data;
Log.Debug(this.GetType().ToString(), "Will Redirect to URL : " + url);
try
{
//触发微信返回code码
HttpContext.Current.Response.Redirect(url);//Redirect函数会抛出ThreadAbortException异常，不用处理这个异常
}
catch (System.Threading.ThreadAbortException ex)
{
}
}
return(null);
}
/**
*
* 通过code换取网页授权access_token和openid的返回数据，正确时返回的JSON数据包如下：
* {
* "access_token":"ACCESS_TOKEN",
* "expires_in":7200,
* "refresh_token":"REFRESH_TOKEN",
* "openid":"OPENID",
* "scope":"SCOPE",
* "unionid": "o6_bmasdasdsad6_2sgVt7hMZOPfL"
* }
* 其中access_token可用于获取共享收货地址
* openid是微信支付jsapi支付接口统一下单时必须的参数
* 更详细的说明请参考网页授权获取用户基本信息：http://mp.weixin.qq.com/wiki/17/c0f37d5704f0b64713d5d2c37b468d75.html
* @失败时抛异常WxPayException
* https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code
*/
public NGWebOAuth2Ticket GetOpenidAndAccessTokenFromCode(string code)
{
try
{
//构造获取openid及access_token的url
string appid = NGWeiXinConfig.appID;
string secret = NGWeiXinConfig.appsecret;
string grant_type = "authorization_code";
string data = "appid=" + appid + "&secret=" + secret + "&code=" + code + "&grant_type=" + grant_type + "";
string url = "https://api.weixin.qq.com/sns/oauth2/access_token?" + data;
//请求url以获取数据
string result = HttpService.Get(url);
Log.Debug(this.GetType().ToString(), "GetOpenidAndAccessTokenFromCode response : " + result);
//保存access_token
JsonData jd = JsonMapper.ToObject(result);
string access_token = (string)jd["access_token"];
//获取用户openid
string openid = (string)jd["openid"];
NGWebOAuth2Ticket mod = new NGWebOAuth2Ticket();
mod.access_token = access_token;
mod.openid = openid;
Log.Debug(this.GetType().ToString(), "Get openid : " + openid);
Log.Debug(this.GetType().ToString(), "Get access_token : " + access_token);
return(mod);
}
catch (Exception ex)
{
Log.Error(this.GetType().ToString(), ex.ToString());
return(null);
}
}
