当我的网站负载很重时，我会有一个奇怪的效果。
我随机获取其他用户设置的属性。我有自己的配置文件系统实现，所以我想我不能责怪配置文件系统本身。
我只需要一个点来开始调试。我猜有一个cookie值可以映射到某个地方的Profile条目。有没有机会看到这种映射是如何工作的？
这是我的个人资料提供者：
using System;
using System.Text;
using System.Configuration;
using System.Web;
using System.Web.Profile;
using System.Collections;
using System.Collections.Specialized;
using B2CShop.Model;
using log4net;
using System.Collections.Generic;
using System.Diagnostics;
using B2CShop.DAL;
using B2CShop.Model.RepositoryInterfaces;
[assembly: log4net.Config.XmlConfigurator()]
namespace B2CShop.Profile
{
public class B2CShopProfileProvider : ProfileProvider
{
private static readonly ILog _log = LogManager.GetLogger(typeof(B2CShopProfileProvider));
// Get an instance of the Profile DAL using the ProfileDALFactory
private static readonly B2CShop.DAL.UserRepository dal = new B2CShop.DAL.UserRepository();
// Private members
private const string ERR_INVALID_PARAMETER = "Invalid Profile parameter:";
private const string PROFILE_USER = "User";
private static string applicationName = B2CShop.Model.Configuration.ApplicationConfiguration.MembershipApplicationName;
/// <summary>
/// The name of the application using the custom profile provider.
/// </summary>
public override string ApplicationName
{
get
{
return applicationName;
}
set
{
applicationName = value;
}
}
/// <summary>
/// Initializes the provider.
/// </summary>
/// <param name="name">The friendly name of the provider.</param>
/// <param name="config">A collection of the name/value pairs representing the provider-specific attributes specified in the configuration for this provider.</param>
public override void Initialize(string name, NameValueCollection config)
{
if (config == null)
throw new ArgumentNullException("config");
if (string.IsNullOrEmpty(config["description"]))
{
config.Remove("description");
config.Add("description", "B2C Shop Custom Provider");
}
if (string.IsNullOrEmpty(name))
name = "b2c_shop";
if (config["applicationName"] != null && !string.IsNullOrEmpty(config["applicationName"].Trim()))
applicationName = config["applicationName"];
base.Initialize(name, config);
}
/// <summary>
/// Returns the collection of settings property values for the specified application instance and settings property group.
/// </summary>
/// <param name="context">A System.Configuration.SettingsContext describing the current application use.</param>
/// <param name="collection">A System.Configuration.SettingsPropertyCollection containing the settings property group whose values are to be retrieved.</param>
/// <returns>A System.Configuration.SettingsPropertyValueCollection containing the values for the specified settings property group.</returns>
public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection collection)
{
string username = (string)context["UserName"];
bool isAuthenticated = (bool)context["IsAuthenticated"];
//if (!isAuthenticated) return null;
int uniqueID = dal.GetUniqueID(username, isAuthenticated, false, ApplicationName);
SettingsPropertyValueCollection svc = new SettingsPropertyValueCollection();
foreach (SettingsProperty prop in collection)
{
SettingsPropertyValue pv = new SettingsPropertyValue(prop);
switch (pv.Property.Name)
{
case PROFILE_USER:
if (!String.IsNullOrEmpty(username))
{
pv.PropertyValue = GetUser(uniqueID);
}
break;
default:
throw new ApplicationException(ERR_INVALID_PARAMETER + " name.");
}
svc.Add(pv);
}
return svc;
}
/// <summary>
/// Sets the values of the specified group of property settings.
/// </summary>
/// <param name="context">A System.Configuration.SettingsContext describing the current application usage.</param>
/// <param name="collection">A System.Configuration.SettingsPropertyValueCollection representing the group of property settings to set.</param>
public override void SetPropertyValues(SettingsContext context, SettingsPropertyValueCollection collection)
{
string username = (string)context["UserName"];
CheckUserName(username);
bool isAuthenticated = (bool)context["IsAuthenticated"];
int uniqueID = dal.GetUniqueID(username, isAuthenticated, false, ApplicationName);
if (uniqueID == 0)
{
uniqueID = dal.CreateProfileForUser(username, isAuthenticated, ApplicationName);
}
foreach (SettingsPropertyValue pv in collection)
{
if (pv.PropertyValue != null)
{
switch (pv.Property.Name)
{
case PROFILE_USER:
SetUser(uniqueID, (UserInfo)pv.PropertyValue);
break;
default:
throw new ApplicationException(ERR_INVALID_PARAMETER + " name.");
}
}
}
UpdateActivityDates(username, false);
}
// Profile gettters
// Retrieve UserInfo
private static UserInfo GetUser(int userID)
{
return dal.GetUser(userID);
}
// Update account info
private static void SetUser(int uniqueID, UserInfo user)
{
user.UserID = uniqueID;
dal.SetUser(user);
}
// UpdateActivityDates
// Updates the LastActivityDate and LastUpdatedDate values
// when profile properties are accessed by the
// GetPropertyValues and SetPropertyValues methods.
// Passing true as the activityOnly parameter will update
// only the LastActivityDate.
private static void UpdateActivityDates(string username, bool activityOnly)
{
dal.UpdateActivityDates(username, activityOnly, applicationName);
}
/// <summary>
/// Deletes profile properties and information for the supplied list of profiles.
/// </summary>
/// <param name="profiles">A System.Web.Profile.ProfileInfoCollection of information about profiles that are to be deleted.</param>
/// <returns>The number of profiles deleted from the data source.</returns>
public override int DeleteProfiles(ProfileInfoCollection profiles)
{
int deleteCount = 0;
foreach (ProfileInfo p in profiles)
if (DeleteProfile(p.UserName))
deleteCount++;
return deleteCount;
}
/// <summary>
/// Deletes profile properties and information for profiles that match the supplied list of user names.
/// </summary>
/// <param name="usernames">A string array of user names for profiles to be deleted.</param>
/// <returns>The number of profiles deleted from the data source.</returns>
public override int DeleteProfiles(string[] usernames)
{
int deleteCount = 0;
foreach (string user in usernames)
if (DeleteProfile(user))
deleteCount++;
return deleteCount;
}
// DeleteProfile
// Deletes profile data from the database for the specified user name.
private static bool DeleteProfile(string username)
{
CheckUserName(username);
return dal.DeleteAnonymousProfile(username, applicationName);
}
// Verifies user name for sise and comma
private static void CheckUserName(string userName)
{
if (string.IsNullOrEmpty(userName) || userName.Length > 256 || userName.IndexOf(",") > 0)
throw new ApplicationException(ERR_INVALID_PARAMETER + " user name.");
}
/// <summary>
/// Deletes all user-profile data for profiles in which the last activity date occurred before the specified date.
/// </summary>
/// <param name="authenticationOption">One of the System.Web.Profile.ProfileAuthenticationOption values, specifying whether anonymous, authenticated, or both types of profiles are deleted.</param>
/// <param name="userInactiveSinceDate">A System.DateTime that identifies which user profiles are considered inactive. If the System.Web.Profile.ProfileInfo.LastActivityDate value of a user profile occurs on or before this date and time, the profile is considered inactive.</param>
/// <returns>The number of profiles deleted from the data source.</returns>
public override int DeleteInactiveProfiles(ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate)
{
string[] userArray = new string[0];
dal.GetInactiveProfiles((int)authenticationOption, userInactiveSinceDate, ApplicationName).CopyTo(userArray, 0);
return DeleteProfiles(userArray);
}
/// <summary>
/// Retrieves profile information for profiles in which the user name matches the specified user names.
/// </summary>
/// <param name="authenticationOption">One of the System.Web.Profile.ProfileAuthenticationOption values, specifying whether anonymous, authenticated, or both types of profiles are returned.</param>
/// <param name="usernameToMatch">The user name to search for.</param>
/// <param name="pageIndex">The index of the page of results to return.</param>
/// <param name="pageSize">The size of the page of results to return.</param>
/// <param name="totalRecords">When this method returns, contains the total number of profiles.</param>
/// <returns>A System.Web.Profile.ProfileInfoCollection containing user-profile information
// for profiles where the user name matches the supplied usernameToMatch parameter.</returns>
public override ProfileInfoCollection FindProfilesByUserName(ProfileAuthenticationOption authenticationOption, string usernameToMatch, int pageIndex, int pageSize, out int totalRecords)
{
CheckParameters(pageIndex, pageSize);
return GetProfileInfo(authenticationOption, usernameToMatch, null, pageIndex, pageSize, out totalRecords);
}
/// <summary>
/// Retrieves profile information for profiles in which the last activity date occurred on or before the specified date and the user name matches the specified user name.
/// </summary>
/// <param name="authenticationOption">One of the System.Web.Profile.ProfileAuthenticationOption values, specifying whether anonymous, authenticated, or both types of profiles are returned.</param>
/// <param name="usernameToMatch">The user name to search for.</param>
/// <param name="userInactiveSinceDate">A System.DateTime that identifies which user profiles are considered inactive. If the System.Web.Profile.ProfileInfo.LastActivityDate value of a user profile occurs on or before this date and time, the profile is considered inactive.</param>
/// <param name="pageIndex">The index of the page of results to return.</param>
/// <param name="pageSize">The size of the page of results to return.</param>
/// <param name="totalRecords">When this method returns, contains the total number of profiles.</param>
/// <returns>A System.Web.Profile.ProfileInfoCollection containing user profile information for inactive profiles where the user name matches the supplied usernameToMatch parameter.</returns>
public override ProfileInfoCollection FindInactiveProfilesByUserName(ProfileAuthenticationOption authenticationOption, string usernameToMatch, DateTime userInactiveSinceDate, int pageIndex, int pageSize, out int totalRecords)
{
CheckParameters(pageIndex, pageSize);
return GetProfileInfo(authenticationOption, usernameToMatch, userInactiveSinceDate, pageIndex, pageSize, out totalRecords);
}
/// <summary>
/// Retrieves user profile data for all profiles in the data source.
/// </summary>
/// <param name="authenticationOption">One of the System.Web.Profile.ProfileAuthenticationOption values, specifying whether anonymous, authenticated, or both types of profiles are returned.</param>
/// <param name="pageIndex">The index of the page of results to return.</param>
/// <param name="pageSize">The size of the page of results to return.</param>
/// <param name="totalRecords">When this method returns, contains the total number of profiles.</param>
/// <returns>A System.Web.Profile.ProfileInfoCollection containing user-profile information for all profiles in the data source.</returns>
public override ProfileInfoCollection GetAllProfiles(ProfileAuthenticationOption authenticationOption, int pageIndex, int pageSize, out int totalRecords)
{
CheckParameters(pageIndex, pageSize);
return GetProfileInfo(authenticationOption, null, null, pageIndex, pageSize, out totalRecords);
}
/// <summary>
/// Retrieves user-profile data from the data source for profiles in which the last activity date occurred on or before the specified date.
/// </summary>
/// <param name="authenticationOption">One of the System.Web.Profile.ProfileAuthenticationOption values, specifying whether anonymous, authenticated, or both types of profiles are returned.</param>
/// <param name="userInactiveSinceDate">A System.DateTime that identifies which user profiles are considered inactive. If the System.Web.Profile.ProfileInfo.LastActivityDate of a user profile occurs on or before this date and time, the profile is considered inactive.</param>
/// <param name="pageIndex">The index of the page of results to return.</param>
/// <param name="pageSize">The size of the page of results to return.</param>
/// <param name="totalRecords">When this method returns, contains the total number of profiles.</param>
/// <returns>A System.Web.Profile.ProfileInfoCollection containing user-profile information about the inactive profiles.</returns>
public override ProfileInfoCollection GetAllInactiveProfiles(ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate, int pageIndex, int pageSize, out int totalRecords)
{
CheckParameters(pageIndex, pageSize);
return GetProfileInfo(authenticationOption, null, userInactiveSinceDate, pageIndex, pageSize, out totalRecords);
}
/// <summary>
/// Returns the number of profiles in which the last activity date occurred on or before the specified date.
/// </summary>
/// <param name="authenticationOption">One of the System.Web.Profile.ProfileAuthenticationOption values, specifying whether anonymous, authenticated, or both types of profiles are returned.</param>
/// <param name="userInactiveSinceDate">A System.DateTime that identifies which user profiles are considered inactive. If the System.Web.Profile.ProfileInfo.LastActivityDate of a user profile occurs on or before this date and time, the profile is considered inactive.</param>
/// <returns>The number of profiles in which the last activity date occurred on or before the specified date.</returns>
public override int GetNumberOfInactiveProfiles(ProfileAuthenticationOption authenticationOption, DateTime userInactiveSinceDate)
{
int inactiveProfiles = 0;
ProfileInfoCollection profiles = GetProfileInfo(authenticationOption, null, userInactiveSinceDate, 0, 0, out inactiveProfiles);
return inactiveProfiles;
}
//Verifies input parameters for page size and page index.
private static void CheckParameters(int pageIndex, int pageSize)
{
if (pageIndex < 1 || pageSize < 1)
throw new ApplicationException(ERR_INVALID_PARAMETER + " page index.");
}
//GetProfileInfo
//Retrieves a count of profiles and creates a
//ProfileInfoCollection from the profile data in the
//database. Called by GetAllProfiles, GetAllInactiveProfiles,
//FindProfilesByUserName, FindInactiveProfilesByUserName,
//and GetNumberOfInactiveProfiles.
//Specifying a pageIndex of 0 retrieves a count of the results only.
private static ProfileInfoCollection GetProfileInfo(ProfileAuthenticationOption authenticationOption, string usernameToMatch, object userInactiveSinceDate, int pageIndex, int pageSize, out int totalRecords)
{
ProfileInfoCollection profiles = new ProfileInfoCollection();
totalRecords = 0;
// Count profiles only.
if (pageSize == 0)
return profiles;
int counter = 0;
int startIndex = pageSize * (pageIndex - 1);
int endIndex = startIndex + pageSize - 1;
DateTime dt = new DateTime(1900, 1, 1);
if (userInactiveSinceDate != null)
dt = (DateTime)userInactiveSinceDate;
/*
foreach(CustomProfileInfo profile in dal.GetProfileInfo((int)authenticationOption, usernameToMatch, dt, applicationName, out totalRecords)) {
if(counter >= startIndex) {
ProfileInfo p = new ProfileInfo(profile.UserName, profile.IsAnonymous, profile.LastActivityDate, profile.LastUpdatedDate, 0);
profiles.Add(p);
}
if(counter >= endIndex) {
break;
}
counter++;
}
*/
return profiles;
}
}
}
这是我在控制器中使用它的方式：
public ActionResult AddTyreToCart(CartViewModel model)
{
string profile = Request.IsAuthenticated ? Request.AnonymousID : User.Identity.Name;
}
我想调试：提供不同cookie的2位用户如何获得相同的profileid？
修改
以下是getuniqueid的代码
public int GetUniqueID(string userName, bool isAuthenticated, bool ignoreAuthenticationType, string appName)
{
SqlParameter[] parms = {
new SqlParameter("@Username", SqlDbType.VarChar, 256),
new SqlParameter("@ApplicationName", SqlDbType.VarChar, 256)};
parms[0].Value = userName;
parms[1].Value = appName;
if (!ignoreAuthenticationType)
{
Array.Resize(ref parms, parms.Length + 1);
parms[2] = new SqlParameter("@IsAnonymous", SqlDbType.Bit) { Value = !isAuthenticated };
}
int userID;
object retVal = null;
retVal = SqlHelper.ExecuteScalar(ConfigurationManager.ConnectionStrings["SQLOrderB2CConnString"].ConnectionString, CommandType.StoredProcedure, "getProfileUniqueID", parms);
if (retVal == null)
userID = CreateProfileForUser(userName, isAuthenticated, appName);
else
userID = Convert.ToInt32(retVal);
return userID;
}
这是SP：
CREATE PROCEDURE [dbo].[getProfileUniqueID]
@Username VarChar( 256),
@ApplicationName VarChar( 256),
@IsAnonymous bit = null
AS
BEGIN
SET NOCOUNT ON;
/*
[getProfileUniqueID]
created
08.07.2009 mf
Retrive unique id for current user
*/
SELECT UniqueID FROM dbo.Profiles WHERE Username = @Username
AND ApplicationName = @ApplicationName
AND IsAnonymous = @IsAnonymous or @IsAnonymous = null
END
答案 0 :(得分：1)
这是一个非常难以排除故障的问题。我们在ASP.NET应用程序（而不是MVC）中遇到了类似的问题。我建议你可以先设置一个单独的cookie来识别用户，完全绕过ASP.NET配置文件系统。然后，您可以检查该cookie中的标识是否与配置文件中的标识匹配。如果没有，那么您可以1）注销用户，这样至少他们无法访问其他人的数据，2）收集一些诊断信息 - 完整的HTTP请求详细信息将是一个开始。如果没有建立任何类型的模式，您可以开始记录用户的所有HTTP请求，以查看其请求历史记录中是否存在可帮助您重现问题的模式。
在我们的案例中，问题最终成为一个愚蠢的本土缓存机制。应用程序将尝试在ASP.NET中缓存静态文件（例如图像），并使用它们缓存cookie。在高负载下，用户有时会使用其他用户的cookie加载图像并假设其他用户的身份。你的情况可能完全不同，但这可能会给你一些关于要寻找的东西类型的线索。
答案 1 :(得分：1)
我没有深入研究这个问题，但有一件事确实突然出现在我身上。
在你的where子句中更改
@IsAnonymous = null
到
@IsAnonymous IS NULL
当@IsAnonymous为空时，您想要发生什么？您可能需要在where子句中添加一些括号。
SELECT UniqueID FROM dbo.Profiles
WHERE Username = @Username
AND ApplicationName = @ApplicationName
AND (IsAnonymous = @IsAnonymous OR @IsAnonymous IS NULL)
您是否有两位收到相同个人资料数据的用户？如果是这样的话就从那我会先通过存储过程运行它们。这样做很简单快捷。
答案 2 :(得分：0)
给定的源似乎没问题，但是如果没有所有相应的源代码（例如B2CShop.DAL.UserRepository类的所有使用方法），甚至数据库方案，我都无法做出深刻的陈述。
首先要检查数据库中的数据是否可能已损坏，以便说某些用户可能确实拥有相同的唯一ID或相同的用户名/应用程序/匿名组合。如果uniqueid是主键，则可以排除这种情况。
答案 3 :(得分：0)
每当这类问题发生时......我已经看到以下原因......
你可以尝试编写没有静态变量的代码，并检查问题是否解决了？
此致 拉胡