问题 如果我使用GUID,则Membership.GetUser工作正常,但如果我在没有参数或名称的情况下尝试它,则会失败:
//This works and adds records to aspnet_user & aspnet_Membership tables
MembershipUser membershipUser = Membership.CreateUser(_name, _pwd, _email, null, null, true, null, out createStatus);
//These fail with an InvalidCastException
MembershipUser membershipUser2 = Membership.GetUser(_name, true);
MembershipUser membershipUser3 = Membership.GetUser();
//If I go look up the GUID for this user (userId), this works!
MembershipUser membershipUser4 = Membership.GetUser(new Guid("E1428CD3-CF17-494E-AB77-CF8F6010F585"), true);
其他之谜
//This works
Int32 count = Membership.GetNumberOfUsersOnline();
//this fails (but totalRecords has the right value)
Int32 totalRecords;
MembershipUserCollection col = Membership.GetAllUsers(0,100, out totalRecords);
设置
例如:
<membership defaultProvider="SqlProvider">
<providers>
<clear />
<add name="SqlProvider"
type="System.Web.Security.SqlMembershipProvider"
connectionStringName="MyDB"
enablePasswordRetrieval="false"
enablePasswordReset="true"
requiresQuestionAndAnswer="false"
applicationName="myapp"
requiresUniqueEmail="false"
passwordFormat="Hashed"
maxInvalidPasswordAttempts="5"
minRequiredPasswordLength="2"
minRequiredNonalphanumericCharacters="0"
passwordAttemptWindow="10"
passwordStrengthRegularExpression="" />
</providers>
</membership>
例外详细信息
Specified cast is not valid.
at System.Data.SqlClient.SqlBuffer.get_SqlGuid()
at System.Data.SqlClient.SqlDataReader.GetGuid(Int32 i)
at System.Web.Security.SqlMembershipProvider.GetUser(String username, Boolean userIsOnline)
at System.Web.Security.Membership.GetUser(String username, Boolean userIsOnline)
思想
这几乎就像Membership.GetUser方法中的内容有问题。我为System.Web.dll(版本4.0)反映了System.Web.Security.SqlMembershipProvider.GetUser的代码,我得到以下内容:
public override MembershipUser GetUser(string username, bool userIsOnline)
{
SecUtility.CheckParameter(ref username, true, false, true, 256, "username");
SqlDataReader reader = (SqlDataReader) null;
try
{
SqlConnectionHolder connectionHolder = (SqlConnectionHolder) null;
try
{
connectionHolder = SqlConnectionHelper.GetConnection(this._sqlConnectionString, true);
this.CheckSchemaVersion(connectionHolder.Connection);
SqlCommand sqlCommand = new SqlCommand("dbo.aspnet_Membership_GetUserByName", connectionHolder.Connection);
sqlCommand.CommandTimeout = this.CommandTimeout;
sqlCommand.CommandType = CommandType.StoredProcedure;
sqlCommand.Parameters.Add(this.CreateInputParam("@ApplicationName", SqlDbType.NVarChar, (object) this.ApplicationName));
sqlCommand.Parameters.Add(this.CreateInputParam("@UserName", SqlDbType.NVarChar, (object) username));
sqlCommand.Parameters.Add(this.CreateInputParam("@UpdateLastActivity", SqlDbType.Bit, (object) (bool) (userIsOnline ? 1 : 0)));
sqlCommand.Parameters.Add(this.CreateInputParam("@CurrentTimeUtc", SqlDbType.DateTime, (object) DateTime.UtcNow));
SqlParameter sqlParameter = new SqlParameter("@ReturnValue", SqlDbType.Int);
sqlParameter.Direction = ParameterDirection.ReturnValue;
sqlCommand.Parameters.Add(sqlParameter);
reader = sqlCommand.ExecuteReader();
if (!reader.Read())
return (MembershipUser) null;
string nullableString1 = this.GetNullableString(reader, 0);
string nullableString2 = this.GetNullableString(reader, 1);
string nullableString3 = this.GetNullableString(reader, 2);
bool boolean1 = reader.GetBoolean(3);
DateTime creationDate = reader.GetDateTime(4).ToLocalTime();
DateTime lastLoginDate = reader.GetDateTime(5).ToLocalTime();
DateTime lastActivityDate = reader.GetDateTime(6).ToLocalTime();
DateTime lastPasswordChangedDate = reader.GetDateTime(7).ToLocalTime();
Guid guid = reader.GetGuid(8);
bool boolean2 = reader.GetBoolean(9);
DateTime lastLockoutDate = reader.GetDateTime(10).ToLocalTime();
return new MembershipUser(this.Name, username, (object) guid, nullableString1, nullableString2, nullableString3, boolean1, boolean2, creationDate, lastLoginDate, lastActivityDate, lastPasswordChangedDate, lastLockoutDate);
}
finally
{
if (reader != null)
reader.Close();
if (connectionHolder != null)
connectionHolder.Close();
}
}
catch
{
throw;
}
}
下一步
我希望从SO人群那里得到一些方向,我应该去哪里。我想我可以覆盖这个方法并将我自己的提供程序放在一起只是为了调试它,或者我可以绕过这个darned的东西并直接调用DB。这似乎是一些基本的DB CRUD的心痛。
当前状态
aspnet_Users
表格UserId
为nvarchar(256)
而不是uniqueidentifier
。也许SqlDataReader.GetGuid()
在那里窒息。我今天晚上会做一些测试,看看是不是问题。我想知道我的表结构是否过时,因为在线文档将此字段显示为uniqueidentifier
。 答案 0 :(得分:1)
为什么使用membership.CurrentUserName()
?您可以使用HttpContext.Current.User.Identity.Name;
答案 1 :(得分:1)
<强>答案强>
我的aspnet_User和aspnet_Membership表将UserId
设置为nvarchar(256)
类型。
<强>讨论强>
这似乎是在SqlMembershipProvider.GetUser方法的以下行中导致错误:
Guid guid = reader.GetGuid(8);
我从.NET框架2和4运行了aspnet_regsql.exe,并且都将UserId设置为uniqueidentifier,这让我觉得我(毕竟)没有标准的ASPNET DB。
项目历史记录中的一点点挖掘表明,此会员数据库最初是通过 MySql 的自定义提供程序生成的。我只能得出结论,当我们切换回默认提供程序时,它永远不会重新生成。
感谢大家的反馈。