/// <summary>
/// singature签名的生成比较麻烦。
/// 首先生成获取access_token
/// （有效期7200秒，开发者必须在自己的服务全局缓存access_token）
/// </summary>
/// <returns></returns>
public static string Getaccesstoken()
{
string appid = PayConfig.WxAppid();
string secret = PayConfig.WxAppSecret();
string urljson = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appid + "&secret=" + secret;
string strjson = "";
UTF8Encoding encoding = new UTF8Encoding();
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(urljson);
myRequest.Method = "GET";
myRequest.ContentType = "application/x-www-form-urlencoded";
HttpWebResponse response;
Stream responseStream;
StreamReader reader;
string srcString;
response = myRequest.GetResponse() as HttpWebResponse;
responseStream = response.GetResponseStream();
reader = new System.IO.StreamReader(responseStream, Encoding.UTF8);
srcString = reader.ReadToEnd();
reader.Close();
if (srcString.Contains("access_token"))
{
//CommonJsonModel model = new CommonJsonModel(srcString);
CommonJsonModel model = new CommonJsonModel(srcString);
strjson = model.GetValue("access_token");
SessionTools.SetSession("access_tokenzj", strjson);
}
return(strjson);
}
private static Sys_User Registered(string code)
{
try
{
var client = new System.Net.WebClient();
client.Encoding = System.Text.Encoding.UTF8;
// 通过code换取网页授权access_token
var strTokenUrl = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code",
PayConfig.WxAppid(), PayConfig.WxAppSecret(), code);
var strTokenData = client.DownloadString(strTokenUrl);
var TokenEntity = JsonHelper.DeserializeObject <WxAccessToken>(strTokenData);
if (TokenEntity == null || string.IsNullOrEmpty(TokenEntity.access_token))
{
return(null);
}
// 通过access_token和openid 拉取用户信息
var strUserUrl = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN", TokenEntity.access_token, TokenEntity.openid);
var strUserData = client.DownloadString(strUserUrl);
var UserEntity = JsonHelper.DeserializeObject <WxUserInfo>(strUserData);
if (UserEntity == null || string.IsNullOrEmpty(UserEntity.openid))
{
return(null);
}
// 注册
var User = new UserService().Regist(UserEntity);
if (User != null)
{
SessionTools.UserID = User.UserID;
SessionTools.UserName = User.UserName;
return(User);
}
}
catch (Exception ex)
{
throw ex;
}
return(null);
}
private static string GetReturnPath(ActionExecutingContext filterContext, string returnURL)
{
try
{
// Session.UserID 为空，则拉取用户注册信息
if (string.IsNullOrEmpty(SessionTools.UserID))
{
var code = filterContext.HttpContext.Request.QueryString["code"];
if (string.IsNullOrEmpty(code))
{
// CODE 为空，则根据appid拉取网页授权
var redirect_uri = HttpUtility.UrlEncode(PayConfig.WebSiteDomain() + "/Home/OAuth?ReturnUrl=" + returnURL);
string url = string.Format(@"https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect",
PayConfig.WxAppid(), redirect_uri);
filterContext.HttpContext.Response.Redirect(url);
filterContext.HttpContext.Response.End();
filterContext.Result = new EmptyResult();
return(string.Empty);
}
// CODE 不为空，则根据 code获取用户信息，并注册
var User = Registered(code);
if (User == null)
{
// 如果User为空，则注册失败，因此不应该继续执行Action内的逻辑
filterContext.HttpContext.Response.End();
filterContext.Result = new EmptyResult();
return(string.Empty);
}
//// 用户手机号不存在则跳转至完善注册信息界面
//if (User != null && string.IsNullOrEmpty(User.TelePhone))
// return "/Regist/RegistView";
//return "/Regist/RegistView?jsonUser="******"拉取用户网页授权信息并且注册异常", ex.ToString());
}
return(string.Empty);
}