直接贴上代码：
/// <summary>
///Web开发框架 WXLogin1 的摘要说明
/// </summary>
public partial class WXLogin1 : AjaxBase, IRequiresSessionState
{
string code = ""; //微信返回的Code
//页面初始化
protected override void PageLoad()
{
base.PageLoad();
code = Parse.String("code", "");
}
//Web开发框架发起微信登录请求
[QD.Web.Ajax.AjaxMethod]
public void Login()
{
//第一步： 获取code
Response.Redirect(string.Format(WXLoginConfig.Url_Sep1, WXLoginConfig.APPID, WXLoginConfig.Redirect_Uri));
}
//微信授权后，回调函数
[QD.Web.Ajax.AjaxMethod]
public void CallBack()
{
if (string.IsNullOrEmpty(code))
JsonResult(500, "授权失败,code参数无效!");
mShop model = Oauth(); //微信授权
if (model != null)
UserLogin(model, model.open_id); //验证成功后，注册用户、登录
}
mShop Oauth()
{
//第二步：根据code获取token失败
string url2 = string.Format("https://api.weixin.qq.com/sns/oauth2/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", WXLoginConfig.APPID, WXLoginConfig.APPSECRET, code);
string html2 = GetHtml(url2);
MWXLogin json = JsonParse<MWXLogin>(html2);
if (json == null || string.IsNullOrEmpty(json.Access_Token))
JsonResult(500, "'授权失败!无法获取access_token,返回值:' " + html2);
//第三步： 根据openid和access_token查询用户信息
string url3 = string.Format("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN", json.Access_Token, json.OpenID);
string html3 = GetHtml(url3);
json = JsonParse<MWXLogin>(html3);
//web开发框架获取昵称、性别、头像、国家、省份、城市,openid等参数
if (string.IsNullOrEmpty(json.OpenID))
JsonResult(500, "授权失败!无法获取昵称、头像等信息,返回值:" + html3);
return GetModel(json);
}
void UserLogin(mShop model, string unionid)
{
//登录成功后的信息
int userid = 0;
int code = DaoUser.Login(model, out userid);
model.Id = userid;
//获取会员版本
if (model.Id > 0)
{
model.GroupId = GetGroupId(model.Id);
}
if (code == 4007)
ShowLoginError(4007); //账户被禁用
if (code == 4005)
{
//用户名不存在,注册新账号
code = Register(model);
//添加积分
ShopPointBLL.AddByOption(model.Id, PointOption.MyRegister);
}
if (code == 0 || code == 4005)
{
//通过二维码方式邀请的, 加入亲友圈
string msg = string.Empty;
if (Request.Cookies["fromid"] != null)
msg = AddFriend(model.Id);
ShowLoginSuccess(model, msg);
}
else
ShowLoginError(code);
}
int Register(mShop model)
{
int user_id = 0;
int code = new ShopBLL().Regist(RegisterType.WeChart, model.NickName, model.Logo, model.open_id, customId, out user_id);
model.Id = user_id;
return code;
}
mShop GetModel(MWXLogin json)
{
Random rand = new Random();
mShop model = new mShop();
model.Name = "wx" + rand.Next(10000000, 99999999);
model.NickName = json.NickName;
model.Logo = json.HeadImgUrl; //头像,完整URL
model.login_type = 3; //1 账号密码登录，2 QQ登录，3微信登录
model.Phone = "";
model.Password = "";
model.QQ = "";
model.Email = "";
model.open_id = json.UnionID; //必须用unionID，这样才能保证app和网页登录是同一个微信账号
return model;
}
/// <summary>
/// 获取会员版本
/// </summary>
int GetGroupId(int userid)
{
Dictionary<string, object> dic = new ShopDAO().Get(userid, "group_id,expiretime");
if (dic != null && dic["expiretime"] != DBNull.Value)
{
DateTime expiretime = Convert.ToDateTime(dic["expiretime"]);
if (expiretime.Subtract(DateTime.Now).TotalDays >= 0)
return Convert.ToInt32(dic["group_id"]);
}
return 0;
}
/// <summary>
/// 通过二维码邀请方式，添加亲友
/// </summary>
/// <param name="userid"></param>
string AddFriend(int login_userid)
{
MoFriend modelFriend = new MoFriend()
{
userid = Convert.ToInt32(Request.Cookies["fromid"].Value),
union_id = login_userid,
circle_id = Convert.ToInt32(Request.Cookies["from_circleid"].Value),
state = 1,
date = DateTime.Now
};
return FriendBLL.AddFriendByCode(modelFriend, login_userid);
//DaoShopGroup dalGroup = new DaoShopGroup();
//try
//{
// int add_shop_id = Convert.ToInt32(Request.Cookies["fromid"].Value);
// //获取会员的版本
// Dictionary<string, object> group = dalGroup.GetMyUsed(add_shop_id);
// //更新会员VIP版本
// if (group != null)
// UserBLL.UpdateVersion(userid, Convert.ToInt32(group["groupid"]), Convert.ToDateTime(group["endtime"]), add_shop_id);
//}
//catch (Exception ex)
//{
// new DaoLog().add("wxreg", string.Format("注册后自动升级VIP失败,{0}", ex.Message));
//}
}
void ShowLoginError(int code)
{
Response.Redirect(string.Format("{0}/wap/error.html?code={1}&msg=", ZYBConfig.Path.Domain, code));
}
void ShowLoginSuccess(mShop model, string msg)
{
//记录登录状态
HttpCookie c1 = new HttpCookie("logintype", "3");
HttpCookie c2 = new HttpCookie("nick_name", QD.WX.Utill.Util.UrlEncode(model.NickName));
HttpCookie c3 = new HttpCookie("userid", model.Id.ToString());
HttpCookie c4 = new HttpCookie("groupid", model.GroupId.ToString());
c1.Expires = c2.Expires = c3.Expires = c4.Expires = DateTime.Now.AddDays(30);
Response.Cookies.Add(c1);
Response.Cookies.Add(c2);
Response.Cookies.Add(c3);
Response.Cookies.Add(c4);
//跳转到亲友页面
if (Request.Cookies["fromid"] != null)
{
string circle_id = Request.Cookies["from_circleid"].Value;
HttpCookie c5 = new HttpCookie("fromid", "0");
HttpCookie c6 = new HttpCookie("from_circleid", "0");
c5.Expires = c6.Expires = DateTime.Now.AddDays(-1);
Response.Cookies.Add(c5); //清空from_userid
Response.Cookies.Add(c6); //清空from_circleid
Response.Redirect(string.Format("/wap/qy_friend.html?circle_id={0}&addmsg={1}", circle_id, msg));
}
else if (Request.Cookies["backurl"] != null)
{
//跳转到Web开发框架
指定页面,如：扫码绑定血压、血糖设备
Response.Redirect(HttpContext.Current.Server.UrlDecode(Request.Cookies["backurl"].Value)); //登录后跳转，在扫描二维码绑定设备中用到
}
else
{
//跳转到会员中心
Response.Redirect(string.Format("{0}/wap/my.html?code={1}&userid={2}&groupid={3}&logintype={4}&nick_name={5}", ZYBConfig.Path.Domain, code, model.Id, model.GroupId, 3, model.NickName));
}
}
string GetHtml(String url)
{
return WebHttpHelper.Request(url);
}
}
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本文标题：Web开发框架微平台公众号一个登陆页面实现代码