使用PostSharp与TraceAttribute与HttpContext的的SessionID的记录 [英] Using PostSharp with TraceAttribute for logging with HttpContext's SessionID

问题描述

我使用的 TraceAttribute PostSharp每个类，以写入日志文件。一个新的要求是要能够prePEND每个日志条目的的SessionID 。

I'm using PostSharp with the TraceAttribute on each class in order to write to log files. A new requirement is to be able to prepend each log entry with the SessionID.

PostSharp似乎并不能够工作，虽然这种方式。我已经试过了是有道理的，我既不工作的两种方法。

PostSharp doesn't seem to be able to work this way though. I've tried the two approaches that made sense to me and neither work.

尝试＃1

我添加了一个字符串参数传递给 TraceAttribute 构造函数传递并通过 OnEntry ，<$使用C $ C> OnExit 和 onException的方法。

I added a string parameter to the TraceAttribute constructor to be passed in and used by the OnEntry, OnExit and OnException methods.

private readonly string _sessionID;

public TraceAttribute(string sessionID)
{
    _sessionID = sessionID;
    logger = new Logger();
}

public override void OnExit(MethodExecutionArgs args)
{
    logger.LogMethodExit(string.Format("Session {0} Exiting {1}.{2}", _sessionID, args.Method.DeclaringType.FullName, args.Method.Name));
}

我的控制器都是用[追踪]属性原来的装饰，我修改，以这种方法...

My controllers were decorated with the [Trace] attribute originally and I modified to this approach...

[Trace(HttpContext.Session.SessionID)]

这不能作为工作的HttpContext 不是一个静态的情况下可用。

This doesn't work as the HttpContext is not available in a static context.

这样的想法是窗外。

尝试＃2

所以，我的下一个尝试是简单地在本地创建的sessionId 变量中的 TraceAttribute 每种方法...

So my next try was to simply create the sessionId variable locally to each method in the TraceAttribute...

public override void OnEntry(MethodExecutionArgs args)
{
    var sessionID = HttpContext.Current.Session.SessionID;
    logger.LogMethodEntry(string.Format("Session {0} Entering {1}.{2}", sessionID, args.Method.DeclaringType.FullName, args.Method.Name));
}

这不工作无论是作为再次，在的HttpContext 尚不可用，并在空对象运行期间只要我运行的解决方案。

This doesn't work either as again, the HttpContext is not yet available and is a null object at runtime as soon I run the solution..

尝试＃3

public override void OnEntry(MethodExecutionArgs args)
{
    string sessionID = "Not initialized";
    if (HttpContext.Current.Session.SessionID != null)
        sessionID = HttpContext.Current.Session.SessionID;
    logger.LogMethodEntry(string.Format("Session {0} Entering {1}.{2}", sessionID, args.Method.DeclaringType.FullName, args.Method.Name));
}

有没有什么办法让会话信息成 TraceAttribute 就是以这种方式与编织PostSharp？一些变通方法，可以完成这个目标？

Is there any way to get the session information into a TraceAttribute that is weaved with PostSharp in this manner? Some workaround that can accomplish this goal?

推荐答案

得到它的工作，我错过了我会被关在web.config中。

Got it working, I was missing my session being turned in in web.config.

添加此行的配置，现在工作得很好。

Added this line to config and it works fine now.

<sessionState mode="InProc" cookieless="false" timeout="20"/>

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