public TokenCacheModel GetToken()
{
TokenCacheModel cache = TokenCache.ContainsKey(AgentId) ? TokenCache[AgentId] : null;
if (cache != null && DateTime.Now < cache.ExpiresAt)
{
return(cache);
}
using (var webClient = new WebClient())
{
var address = $"https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid={CorpId}&corpsecret={AgentSecret}";
var json = webClient.DownloadString(address);
var result = JsonConvert.DeserializeObject <TokenResultModel>(json);
if (result.ErrCode != 0)
{
throw new Exception(result.ErrMsg);
}
var accessToken = result.AccessToken;
var expiresAt = DateTime.Now.AddSeconds(result.ExpiresIn);
cache = new TokenCacheModel {
AccessToken = accessToken, ExpiresAt = expiresAt
};
TokenCache[AgentId] = cache;
return(cache);
}
}
/// <summary>
/// 核对缓存中是否存在token以及token的有效性
/// </summary>
/// <param name="cachename">缓存名称</param>
private string CheckCacheToken()
{
TokenCacheModel token = TokenCache.GetCacheToken(CacheName);
if (token != null)
{
if (TimeHelper.GetTimeSecond() >= (token.TokenClaim.Exp - 60))
{
return(null);
}
else
{
return(token.TokenStr);
}
}
return(null);
}
