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我正在爲我的客戶提供訂單管理系統。在這個系統中，我決定使用IPrincipal而不是IIdentity。IIdentity購物車IPrincipal
我一直在想我應該在哪裏存儲客戶的購物車數據。最後我決定存儲在Cookie中。
我的第一個問題是：我應該在哪裏存儲客戶購物車數據？在數據庫或在Cookie中？
我認爲在cookie中會更快更有用。我需要你關於這個問題的想法。
我試圖用cookie存儲。我可以將購物車數據添加到cookie，但是當我嘗試將其他產品添加到購物車時，購物車數據正在重置。我想將購物車數據存儲在列表中。
我的代碼：
1-我CustomPrincipal：
public class CustomPrincipal:IPrincipal
{
public IIdentity Identity{ get; private set; }
public bool IsInRole(string Role) { return false;}
public CustomPrincipal(string UserName){
this.Identity = new GenericIdentity(UserName);
}
public int UserId { get; set; }
public string UserName { get; set; }
public int RoleId { get; set; }
public bool IsAdmin { get; set; }
public List<Models.DTO.CartDTO.CartVM> Cart { get; set; }
}
2- CustomPrincipalSerializeModel - 序列化的自定義信息轉換爲用戶數據字段中的FormsAuthenticationTicket對象。
public class CustomPrincipalSerializeModel
{
public int Id { get; set; }
public string UserName { get; set; }
public int RoleId { get; set; }
public bool IsAdmin { get; set; }
public List<Models.DTO.CartDTO.CartVM> Cart { get; set; }
}
3-我的登錄方法 - 建立與自定義informatin一個cookie：
if (rplogin.Any(x => x.UserName == model.UserName && x.Password == model.Password && x.IsDeleted == false))
{
var member = rplogin.FirstOrDefault(x => x.UserName == model.UserName);
member.LastLoginDate = DateTime.Now;
rplogin.SaveChanges();
Models.DTO.Security.CustomPrincipalSerializeModel serializeModel = new Models.DTO.Security.CustomPrincipalSerializeModel();
serializeModel.Id = member.Id;
serializeModel.UserName = member.UserName;
serializeModel.RoleId = member.RoleId;
serializeModel.IsAdmin = member.IsAdmin;
serializeModel.Cart = new List<Models.DTO.CartDTO.CartVM>();
JavaScriptSerializer serializer = new JavaScriptSerializer();
string userData = serializer.Serialize(serializeModel);
FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(
1,
model.UserName,
DateTime.Now,
DateTime.Now.AddMinutes(FormsAuthentication.Timeout.TotalMinutes),
false,
userData
);
string encTicket = FormsAuthentication.Encrypt(authTicket);
HttpCookie faCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket)
{
HttpOnly = true
};
Response.Cookies.Add(faCookie);
return RedirectToAction("Index", "Management");
}
else
{
ViewBag.IsLogged = false;
}
}
return View();
4- Global.asax.cs中讀餅乾和更換HttpContext.User中對象，這是通過重寫PostAuthenticateRequest完成
protected void Application_PostAuthenticateRequest(Object sender, EventArgs e)
{
HttpCookie authCookie = Request.Cookies[FormsAuthentication.FormsCookieName];
if (authCookie != null)
{
FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);
JavaScriptSerializer serializer = new JavaScriptSerializer();
CustomPrincipalSerializeModel serializeModel = serializer.Deserialize<CustomPrincipalSerializeModel>(authTicket.UserData);
CustomPrincipal newUser = new CustomPrincipal(authTicket.Name);
newUser.UserId = serializeModel.Id;
newUser.RoleId = serializeModel.RoleId;
newUser.UserName = serializeModel.UserName;
newUser.IsAdmin = serializeModel.IsAdmin;
newUser.Cart = serializeModel.Cart;
HttpContext.Current.User = newUser;
}
}
5-我的購物車VM
public class CartVM
{
public int ProductId { get; set; }
public string ProductName { get; set; }
public int VariationId { get; set; }
public string VariationName { get; set; }
public int ColorId { get; set; }
public string ColorName { get; set; }
public decimal Discount { get; set; }
public decimal Amount { get; set; }
}
6-添加到購物車方法
public string AddToCart(string prdctname, int vrtnId, int clrId, int qntty)
{
Models.DTO.CartDTO.CartVM cartdto = new Models.DTO.CartDTO.CartVM();
cartdto.ColorId = clrId;
cartdto.ProductName = prdctname;
cartdto.VariationId = vrtnId;
User.Cart.Add(cartdto);
return "Added to cart";
}