/// <summary>
/// 微信公众号引导页
/// </summary>
/// <param name="url">微信前端传递的跳转url</param>
/// <returns>成功时，重定向至获取用户信息</returns>
public ActionResult Index(string url)
{
if (!string.IsNullOrEmpty(url))
{
url = WXHelper.DecodeBase64(url);
string state = EncryptHelper.MD5Encrypt(url);
//判断url根据MD5生成的密文在缓存中是否存在
object objUrl = CacheHelper.GetCache(state);
if (objUrl == null)
{
CacheHelper.AddCache(state, url, 5);//不存在则将url和对应的密文存储在缓存中，存储时长为5分钟
}
else
{
CacheHelper.SetCache(state, url, 5);//存在则将url和对应的密文在缓存中更新，更新存储时长为5分钟
}
return(Redirect(string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_base&state={2}#wechat_redirect", appId, ConfigurationManager.AppSettings["zp_apppath"] + "/Recruitment/Auth/GetUserInfo", state)));
}
else
{
ViewData["errmsg"] = "重定向url不能为空！";
}
return(View());
}
