/** * * 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 Tuple<bool, string> GetOpenidAndAccessToken() { //Result bool flag = false; string redirectUrl = string.Empty; if (!string.IsNullOrEmpty(page.Request.QueryString["code"])) { //获取code码,以获取openid和access_token string code = page.Request.QueryString["code"]; Log.Debug(this.GetType().ToString(), "Get code : " + code); GetOpenidAndAccessTokenFromCode(code, page); flag = true; } else { //构造网页授权获取code的URL string host = page.Request.Url.Host; string path = page.Request.Path; string redirect_uri = HttpUtility.UrlEncode("http://" + host + path); WxPayData data = new WxPayData(); data.SetValue("appid", WxPayConfig.APPID); data.SetValue("redirect_uri", redirect_uri); data.SetValue("response_type", "code"); data.SetValue("scope", "snsapi_base"); data.SetValue("state", "STATE" + "#wechat_redirect"); string url = "https://open.weixin.qq.com/connect/oauth2/authorize?" + data.ToUrl(); Log.Debug(this.GetType().ToString(), "Will Redirect to URL : " + url); try { flag = false; //需要进行跳转 redirectUrl = url; //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 } catch (System.Threading.ThreadAbortException ex) { } } return new Tuple<bool, string>(flag, redirectUrl); }
/** * * 获取收货地址js函数入口参数,详情请参考收货地址共享接口:http://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=7_9 * @return string 共享收货地址js函数需要的参数,json格式可以直接做参数使用 */ public string GetEditAddressParameters() { string parameter = ""; try { string host = page.Request.Url.Host; string path = page.Request.Path; string queryString = page.Request.Url.Query; //这个地方要注意,参与签名的是网页授权获取用户信息时微信后台回传的完整url string url = "http://" + host + path + queryString; //构造需要用SHA1算法加密的数据 WxPayData signData = new WxPayData(); signData.SetValue("jsapi_ticket", TokenEntity.Jsapi_ticket); signData.SetValue("noncestr", WxPayApi.GenerateNonceStr()); signData.SetValue("timestamp", WxPayApi.GenerateTimeStamp()); signData.SetValue("url", url); //signData.SetValue("accesstoken", access_token); string param = signData.ToUrl(); Log.Debug(this.GetType().ToString(), "SHA1 encrypt param : " + param); //SHA1加密 string addrSign = TokenHelper.SH1Compute(param).ToLower(); Log.Debug(this.GetType().ToString(), "SHA1 encrypt result : " + addrSign); //获取收货地址js函数入口参数 WxPayData afterData = new WxPayData(); afterData.SetValue("appId", WxPayConfig.APPID); afterData.SetValue("scope", "jsapi_address"); afterData.SetValue("signType", "sha1"); afterData.SetValue("addrSign", addrSign); afterData.SetValue("timeStamp", signData.GetValue("timestamp")); afterData.SetValue("nonceStr", signData.GetValue("noncestr")); //转为json格式 parameter = afterData.ToJson(); Log.Debug(this.GetType().ToString(), "Get EditAddressParam : " + parameter); } catch (Exception ex) { Log.Error(this.GetType().ToString(), ex.ToString()); throw new WxPayException(ex.ToString()); } return parameter; }
/** * * 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, HttpContextBase page) { try { //构造获取openid及access_token的url WxPayData data = new WxPayData(); data.SetValue("appid", WxPayConfig.APPID); data.SetValue("secret", WxPayConfig.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); Log.Debug(this.GetType().ToString(), "GetOpenidAndAccessTokenFromCode response : " + result); //保存access_token,用于收货地址获取 JsonData jd = JsonMapper.ToObject(result); access_token = (string)jd["access_token"]; //获取用户openid openid = (string)jd["openid"]; //存入Session page.Session["access_token"] = access_token; page.Session["openid"] = openid; page.Session["UserID"] = openid; access_token = TokenEntity.TokenNa; TokenHelper.RequestServiceToken(); string strJsApiTicket = TokenEntity.Jsapi_ticket; Log.Debug(this.GetType().ToString(), "Get openid : " + openid); Log.Debug(this.GetType().ToString(), "Get access_token : " + access_token); } catch (Exception ex) { Log.Error(this.GetType().ToString(), ex.ToString()); throw new WxPayException(ex.ToString()); } }