c# - 我在程序集 "Cannot serialized the aspects: Type ' 中得到 'log4net...' log4net.Core.LogImpl' - 我怎样才能让它序列化？

Question

环境

• Windows 7 x64
• 已安装 PostSharp 2.1.7.30
• PostSharp 2.1.7.29 (从 PostSharp 安装目录中检索到的引用)
• log4net 1.2.11.0 (从 log4net 二进制文件下载的 net\2.0\release 目录中检索到的引用)
• ASP.NET 2.0 应用程序
• Visual Studio 2010 SP1

看点

[Serializable]
public class MethodBoundaryAspect : PostSharp.Aspects.OnMethodBoundaryAspect
{
    ILog _logger = LogManager.GetLogger("MethodBoundaryAspect");

    public override void OnEntry(PostSharp.Aspects.MethodExecutionArgs args)
    {
        _logger.DebugFormat("The user {0} entered the method {1} at {2}.",
            HttpContext.Current.Profile.UserName,
            args.Method.Name,
            DateTime.Now);

        base.OnEntry(args);
    }

    public override void OnExit(PostSharp.Aspects.MethodExecutionArgs args)
    {
        _logger.DebugFormat("The user {0} exited the method {1} at {2}.",
            HttpContext.Current.Profile.UserName,
            args.Method.Name,
            DateTime.Now);

        base.OnExit(args);
    }

    public override void OnException(PostSharp.Aspects.MethodExecutionArgs args)
    {
        _logger.DebugFormat("The user {0} was executing the method {1} when an unhandled exception occurred at {2}.{3}{4}",
            HttpContext.Current.Profile.UserName,
            args.Method.Name,
            DateTime.Now,
            Environment.NewLine,
            args.Exception.ToString());

        base.OnException(args);
    }
}

编译错误

Cannot serialize the aspects: Type 'log4net.Core.LogImpl' in Assembly 'log4net, Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a' is not marked as serializable.

如何使 log4net.Core.LogImpl 可序列化以便编译此解决方案？

Answer 1

根据 Grant 和 mtsiakiris 的评论，我通过向字段添加 [NonSerialized] 属性解决了这个问题，如下所示:

[NonSerialized]
ILog _logger = LogManager.GetLogger("MethodBoundaryAspect");

然后在序列化过程中忽略它。发生这种情况的原因是因为 PostSharp 需要在其 IL 生成期间序列化该属性。