Я сделал простое веб-приложение .NET 4 в VS2010 и добавил ссылку на log4net 1.2.11.0 (последняя версия).
В этом проекте я создал класс Logger (см.конец этого поста).Когда я называю этот класс Logger (Logger.Fatal("Test");) в среде полного доверия, все работает правильно.Однако, когда я изменяю уровень доверия на Высокий (или Средний), происходит сбой со следующим исключением:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeLoadException: Inheritance security rules violated while overriding member: 'log4net.Util.ReadOnlyPropertiesDictionary.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)'. Security accessibility of the overriding method must match the security accessibility of the method being overriden.
at log4net.Repository.Hierarchy.Hierarchy..ctor(ILoggerFactory loggerFactory)
at log4net.Repository.Hierarchy.Hierarchy..ctor()
--- End of inner exception stack trace ---
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at log4net.Core.DefaultRepositorySelector.CreateRepository(String repositoryName, Type repositoryType)
at log4net.Core.DefaultRepositorySelector.CreateRepository(Assembly repositoryAssembly, Type repositoryType, String repositoryName, Boolean readAssemblyAttributes)
at log4net.Core.DefaultRepositorySelector.CreateRepository(Assembly repositoryAssembly, Type repositoryType)
at log4net.Core.DefaultRepositorySelector.GetRepository(Assembly repositoryAssembly)
at log4net.Core.LoggerManager.GetRepository(Assembly repositoryAssembly)
at log4net.Config.XmlConfigurator.Configure()
at UtilClasses.Logger..cctor() in c:\users\***\documents\visual studio 2010\Projects\TestLogging\TestLogging\Default.aspx.cs:line 35
Это исключение выдается на log4net.Config.XmlConfigurator.Configure();.Похоже, мое приложение не может даже прочитать мой web.config
Я обнаружил, что добавление requestPermissions="false" к тегу <section> должно помочь, однако теперь я вообще не могу запустить свое приложение.
Ребята, вы знаете, как это исправить?
Класс логгера :
public static class Logger
{
private static readonly log4net.ILog log;
static Logger()
{
try {
log4net.Config.XmlConfigurator.Configure();
log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
}
catch (Exception e)
{
System.Diagnostics.Debug.Write(e.ToString());
}
}
public static void LogInfo(string information)
{
log.Info(information);
}
public static void LogError(string erroMessage, Exception ex)
{
log.Error(erroMessage, ex);
}
public static void LogWarnings(string warningText)
{
log.Warn(warningText);
}
public static void Fatal(string fatalText)
{
log.Fatal(fatalText);
}
}
Файл конфигурации (web.config):
<?xml version="1.0"?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<system.web>
<compilation debug="true" targetFramework="4.0" />
<trust level="High" />
</system.web>
<log4net debug="true">
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="log\logfile.txt" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<datePattern value="yyyy-MM-dd" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date{dd-MM-yyyy HH:mm:ss,fff} [%-2p] - %C.%M - %m%n" />
</layout>
</appender>
<root>
<level value="ALL" />
<appender-ref ref="RollingFileAppender" />
</root>
</log4net>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
</configuration>
Полный вывод отладчика (без информации w3wp):
'w3wp.exe' (Managed (v4.0.30319)): Loaded 'C:\Windows\assembly\GAC_MSIL\Microsoft.VisualStudio.Debugger.Runtime\10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Debugger.Runtime.dll'
log4net: log4net assembly [log4net, Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a]. Loaded from [C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\testlogging\57d742cb\fe23fd98\assembly\dl3\5a80c88f\005a56f5_5784cc01\log4net.DLL]. (.NET Runtime [4.0.30319.261] on Microsoft Windows NT 6.1.7601 Service Pack 1)
log4net: defaultRepositoryType [log4net.Repository.Hierarchy.Hierarchy]
log4net: Creating repository for assembly [TestLogging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]
log4net: Assembly [TestLogging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null] Loaded From [C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\testlogging\57d742cb\fe23fd98\assembly\dl3\a4f1c9bb\cc1c77d4_ce01cd01\TestLogging.DLL]
log4net: Assembly [TestLogging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null] does not have a RepositoryAttribute specified.
log4net: Assembly [TestLogging, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null] using repository [log4net-default-repository] and repository type [log4net.Repository.Hierarchy.Hierarchy]
log4net: Creating repository [log4net-default-repository] using type [log4net.Repository.Hierarchy.Hierarchy]
A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeLoadException: Inheritance security rules violated while overriding member: 'log4net.Util.ReadOnlyPropertiesDictionary.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)'. Security accessibility of the overriding method must match the security accessibility of the method being overriden.
at log4net.Repository.Hierarchy.Hierarchy..ctor(ILoggerFactory loggerFactory)
at log4net.Repository.Hierarchy.Hierarchy..ctor()
--- End of inner exception stack trace ---
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at log4net.Core.DefaultRepositorySelector.CreateRepository(String repositoryName, Type repositoryType)
at log4net.Core.DefaultRepositorySelector.CreateRepository(Assembly repositoryAssembly, Type repositoryType, String repositoryName, Boolean readAssemblyAttributes)
at log4net.Core.DefaultRepositorySelector.CreateRepository(Assembly repositoryAssembly, Type repositoryType)
at log4net.Core.DefaultRepositorySelector.GetRepository(Assembly repositoryAssembly)
at log4net.Core.LoggerManager.GetRepository(Assembly repositoryAssembly)
at log4net.Config.XmlConfigurator.Configure()
at UtilClasses.Logger..cctor() in c:\users\***\documents\visual studio 2010\Projects\TestLogging\TestLogging\Default.aspx.cs:line 35
[Edit] Я включил источник log4net вместо DLLи обнаружил, что исключение выдается, когда log4net создает новый экземпляр репозитория.Это в DefaultRepositorySelector.cs, (строка 424-426):
// Call the no arg constructor for the repositoryType
var x = Activator.CreateInstance(repositoryType);
rep = (ILoggerRepository)x;