/// <summary>
/// 获取微信用户 Access Token
/// </summary>
/// <param name="code"></param>
/// <returns></returns>
public static UserAccessTokenResponseMessage GetUserAccessToken(string code)
{
string url = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code",
ConfigurationManager.AppSettings["AppId"],
ConfigurationManager.AppSettings["AppSecret"],
code);
UserAccessTokenResponseMessage response = WechatApi.GetWechatApi <UserAccessTokenResponseMessage>(url);
if (response.ErrorCode.HasValue && response.ErrorCode.Value != 0)
{
throw new WechatApiInvokeException(response.ErrorCode.Value, response.ErrorMessage, url);
}
return(response);
}
/// <summary>
/// 从微信服务器获取票据凭证
/// </summary>
/// <returns></returns>
public static AccessTokenResponseMessage GetAccessTokenFromWechat()
{
string url = string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}",
ConfigurationManager.AppSettings["AppId"],
ConfigurationManager.AppSettings["AppSecret"]);
LogHelper.Info("正在调用接口获取票据凭证...");
AccessTokenResponseMessage response = WechatApi.GetWechatApi <AccessTokenResponseMessage>(url);
LogHelper.Info("已获取票据凭证。");
if (response.ErrorCode.HasValue && response.ErrorCode.Value != 0)
{
throw new WechatApiInvokeException(response.ErrorCode.Value, response.ErrorMessage, url);
}
return(response);
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="url"></param>
/// <returns></returns>
private static T GetWechatApiWithToken <T>(string rawUrl) where T : WechatApiResponseMessage
{
string accessToken = WechatApi.GetAccessToken();
string url = rawUrl + "access_token=" + accessToken;
T response = WechatApi.GetWechatApi <T>(url);
if (response.ErrorCode.HasValue)
{
switch (response.ErrorCode.Value)
{
case 0:
break;
// 如果是票据过期问题，则重新获取票据
case 40001:
case 40014:
case 42001:
LogHelper.Info(string.Format("调用微信接口时票据凭证无效或过期, errcode : {0}, errmsg : {1}, interface : {2}", response.ErrorCode, response.ErrorMessage, url));
// 重新获取票据凭证
accessToken = WechatApi.RefreshAccessToken(accessToken);
url = rawUrl + "access_token=" + accessToken;
response = WechatApi.GetWechatApi <T>(url);
if (response.ErrorCode.HasValue && response.ErrorCode.Value != 0)
{
throw new WechatApiInvokeException(response.ErrorCode.Value, response.ErrorMessage, url);
}
break;
default:
throw new WechatApiInvokeException(response.ErrorCode.Value, response.ErrorMessage, url);
}
}
return(response);
}
