/**
*
* 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, string city)
{
try
{
//构造获取openid及access_token的url
WxPayData data = new WxPayData();
data.SetValue("appid", WxPayConfig.APPID(city));
data.SetValue("secret", WxPayConfig.APPSECRET(city));
//data.SetValue("code", code);
data.SetValue("js_code", code);
//data.SetValue("scope", "snsapi_userinfo");
data.SetValue("grant_type", "authorization_code");
//string url = "https://api.weixin.qq.com/sns/oauth2/access_token?" + data.ToUrl();
string url = "https://api.weixin.qq.com/sns/jscode2session?" + 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);
try
{
this.access_token = (string)jd["access_token"];
}
catch
{
}
//获取用户openid
this.openid = (string)jd["openid"];
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());
}
}