public void ProcessRequest(HttpContext context)
{
//在此处写入您的处理程序实现。
HttpRequest request = context.Request;
HttpResponse response = context.Response;
PayModel payModel = JsonConvert.DeserializeObject <PayModel>(request["payinfo"]);
if (string.IsNullOrEmpty(payModel.OpenId))
{
string redirect_uri = HttpUtility.UrlEncode(request.Url.ToString());
GetUserOpenId(payModel, redirect_uri);
payModel.OpenId = UserOpenId;
response.Redirect(payModel.ToString());
}
}
/// <summary>
/// 获取当前用户的微信 OpenId，如果知道用户的OpenId请不要使用该函数
/// </summary>
private void GetUserOpenId(PayModel payModel, string redirect_uri)
{
if (!string.IsNullOrEmpty(payModel.AppId) && !string.IsNullOrEmpty(payModel.AppKey) && !string.IsNullOrEmpty(payModel.AppSecret))
{
HttpRequest Request = HttpContext.Current.Request;
HttpResponse Response = HttpContext.Current.Response;
string code = Request.QueryString["code"];
if (string.IsNullOrEmpty(code))
{
string code_url = string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_base&state=lk#wechat_redirect", payModel.AppId, redirect_uri);
Response.Redirect(code_url);
}
else
{
#region =======获取支付用户 OpenID=========
string url = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", payModel.AppId, payModel.AppSecret, code);
string returnStr = PayUtil.Send("", url);
PayUtil.SaveLog("获取token返回信息：", returnStr);
var obj = JsonConvert.DeserializeObject <OpenModel>(returnStr);
url = string.Format("https://api.weixin.qq.com/sns/oauth2/refresh_token?appid={0}&grant_type=refresh_token&refresh_token={1}", payModel.AppId, obj.refresh_token);
returnStr = PayUtil.Send("", url);
obj = JsonConvert.DeserializeObject <OpenModel>(returnStr);
PayUtil.SaveLog("用户access_token/openid：", obj.access_token + "/" + obj.openid);
//url = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}", obj.access_token, obj.openid);
//returnStr = HttpUtil.Send("", url);
//PayUtil.SaveLog("用户信息：" , returnStr);
UserOpenId = obj.openid;
#endregion
}
}
else
{
PayUtil.SaveLog("获取用户的微信用户OpenId失败", "参数->AppId:" + payModel.AppId + ";AppKey:" + payModel.AppKey + ";AppSecret:" + payModel.AppSecret);
}
}
/// <summary>
/// 获取配置信息
/// </summary>
/// <returns></returns>
public PayModel GetPayModel()
{
//如果有多个商家，可从数据库取商家配置信息
//string appId=GetRequest("AppId","");
//DataTable dt = new DataTable();
//DataRow dr = dt.Rows[0];
//PayModel p = new PayModel();
//p.AppId = appId;
//p.AppKey = dr["AppKey"].ToString();
//本示例使用配置信息（单商家）
if (!string.IsNullOrEmpty(PayConfig.AppId) && !string.IsNullOrEmpty(PayConfig.AppKey))
{
PayModel p = new PayModel();
p.AppId = PayConfig.AppId;
p.AppKey = PayConfig.AppKey;
return p;
}
else
{
PayUtil.SaveLog("Notify页面->获取配置信息失败", "AppId:" + PayConfig.AppId + ";AppKey:" + PayConfig.AppKey);
return null;
}
}
/// <summary>
/// 获取当前用户的微信 OpenId，如果知道用户的OpenId请不要使用该函数
/// </summary>
private void GetUserOpenId(PayModel payModel, string redirect_uri)
{
if (!string.IsNullOrEmpty(payModel.AppId) && !string.IsNullOrEmpty(payModel.AppKey) && !string.IsNullOrEmpty(payModel.AppSecret))
{
HttpRequest Request = HttpContext.Current.Request;
HttpResponse Response = HttpContext.Current.Response;
string code = Request.QueryString["code"];
if (string.IsNullOrEmpty(code))
{
string code_url = string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope=snsapi_base&state=lk#wechat_redirect", payModel.AppId, redirect_uri);
Response.Redirect(code_url);
}
else
{
#region =======获取支付用户 OpenID=========
string url = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", payModel.AppId, payModel.AppSecret, code);
string returnStr = PayUtil.Send("", url);
PayUtil.SaveLog("获取token返回信息：", returnStr);
var obj = JsonConvert.DeserializeObject<OpenModel>(returnStr);
url = string.Format("https://api.weixin.qq.com/sns/oauth2/refresh_token?appid={0}&grant_type=refresh_token&refresh_token={1}", payModel.AppId, obj.refresh_token);
returnStr = PayUtil.Send("", url);
obj = JsonConvert.DeserializeObject<OpenModel>(returnStr);
PayUtil.SaveLog("用户access_token/openid：", obj.access_token + "/" + obj.openid);
//url = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}", obj.access_token, obj.openid);
//returnStr = HttpUtil.Send("", url);
//PayUtil.SaveLog("用户信息：" , returnStr);
UserOpenId = obj.openid;
#endregion
}
}
else
{
PayUtil.SaveLog("获取用户的微信用户OpenId失败", "参数->AppId:" + payModel.AppId + ";AppKey:" + payModel.AppKey + ";AppSecret:" + payModel.AppSecret);
}
}