在我的MVC 3应用程序中,尽管在IIS7上以完全信任的环境部署,但似乎NLog无法使用反射来GetCurrentClassLogger()
。 我正在使用StructureMap 2.6.1,问题似乎在部署之间偶尔出现。 尽管我不认为StructureMap是原因,但我无法弄清楚为什么。
Bootstrapper
类:
public static class Bootstrapper
{
public static void ConfigureStructureMap()
{
ObjectFactory.Initialize(Init);
}
private static void Init(IInitializationExpression x)
{
x.AddRegistry(new DBServiceRegistry());
x.AddRegistry(new MyRegistry());
}
}
Registry
类:
public class MyRegistry : Registry
{
public MyRegistry()//HttpContext context)
{
For<ILogger>().Use<NLogLogger>();
For<IUserRepository>().Use<SqlUserRepository>();
}
}
我的电脑上一切都很好,但是我部署时为什么会出现System.NullReferenceException: 对象引用未设置为对象的实例
错误?
[NullReferenceException: Object reference not set to an instance of an object.]
NLog.LogManager.GetCurrentClassLogger() +84
lambda_method(Closure , IArguments ) +40
StructureMap.Construction.<>c__DisplayClass2.<CreateBuilder>b__0(IArguments args) +22
StructureMap.Construction.InstanceBuilder.BuildInstance(IArguments args) +12
StructureMap.Pipeline.ConstructorInstance.Build(Type pluginType, BuildSession session, IInstanceBuilder builder) +88
[StructureMapException: StructureMap Exception Code: 207
Internal exception while creating Instance '38000383-149d-45c2-a8f3-7442316da725' of PluginType Todo.Data.ILogger. Check the inner exception for more details.]
StructureMap.Pipeline.ConstructorInstance.Build(Type pluginType, BuildSession session, IInstanceBuilder builder) +276
StructureMap.Pipeline.ConstructorInstance.build(Type pluginType, BuildSession session) +41
StructureMap.Pipeline.SmartInstance_1.build(Type pluginType, BuildSession session) +43
StructureMap.Pipeline.Instance.createRawObject(Type pluginType, BuildSession session) +45
StructureMap.Pipeline.Instance.Build(Type pluginType, BuildSession session) +36
StructureMap.Pipeline.ObjectBuilder.Resolve(Type pluginType, Instance instance, BuildSession session) +103
StructureMap.BuildSession.CreateInstance(Type pluginType, Instance instance) +49
StructureMap.<>c__DisplayClass3.<.ctor>b__1() +22
StructureMap.BuildSession.CreateInstance(Type pluginType) +24
...etc...snipped