/** * * 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 */ public void GetOpenidAndAccessTokenFromCode(string code, WxPayConfig payConfig, PayModel payInfo) { try { //构造获取openid及access_token的url WxPayData data = new WxPayData(); data.SetValue("appid", payConfig.APPID); data.SetValue("secret", payConfig.APPSECRET); data.SetValue("code", code); data.SetValue("grant_type", "authorization_code"); string url = "https://api.weixin.qq.com/sns/oauth2/access_token?" + data.ToUrl(); //请求url以获取数据 string result = HttpService.Get(url); //保存access_token,用于收货地址获取 JsonData jd = JsonMapper.ToObject(result); payInfo.access_token = (string)jd["access_token"]; //获取用户openid payInfo.openid = (string)jd["openid"]; } catch (Exception ex) { throw new WxPayException(ex.ToString()); } }
//public PayModel payInfo = new PayModel(); /** * * 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 * */ public void GetOpenidAndAccessToken(string code, WxPayConfig payConfig, PayModel payInfo, string urlParam, string scopeTyp) { if (code != "-1") { //获取code码,以获取openid和access_token GetOpenidAndAccessTokenFromCode(code, payConfig, payInfo); } else { //构造网页授权获取code的URL string redirect_uri = HttpUtility.UrlEncode(payConfig.FRONT_URL + urlParam); WxPayData data = new WxPayData(); data.SetValue("appid", payConfig.APPID); data.SetValue("redirect_uri", redirect_uri); data.SetValue("response_type", "code"); data.SetValue("scope", string.IsNullOrEmpty(scopeTyp) ? "snsapi_base": scopeTyp); // snsapi_userinfo data.SetValue("state", "STATE" + "#wechat_redirect"); string url = "https://open.weixin.qq.com/connect/oauth2/authorize?" + data.ToUrl(); try { //触发微信返回code码 // page.Response.Redirect(url);//Redirect函数会抛出ThreadAbortException异常,不用处理这个异常 payInfo.redirect_url = url; } catch (System.Threading.ThreadAbortException ex) { } } }