如何在AppenderSkeleton log4net中添加自定义属性

时间:2013-06-15 06:41:58

标签: c# asp.net log4net

我创建自定义Appender(使用AppenderSkeleton)连接到Web服务...在这个Appender中我需要向Web服务发送一些自定义属性(如Url,Browser,User,...)... 但是当我添加这样的属性时:

ThreadContext.Properties["addr"] = System.Web.HttpContext.Current.Request.UserHostAddress;

在我这样的appender中:

public class UrlLogAppender : AppenderSkeleton
    {

        public string APIkey { get; set; }
        public string CustomerName { get; set; }

        protected override void Append(LoggingEvent loggingEvent)
        {
            try
            {
                Base.LogToDataBase.WebService1 LogtoWebserver = new Base.LogToDataBase.WebService1();



                string Result = LogtoWebserver.Log(CustomerName, APIkey, loggingEvent.TimeStamp.ToString(), loggingEvent.ThreadName.ToString(), loggingEvent.Level.ToString(), loggingEvent.LoggerName, loggingEvent.RenderedMessage, loggingEvent.ExceptionObject.InnerException.Message.ToString(), loggingEvent.Properties["addr"].ToString(), loggingEvent.Properties["browser"].ToString(), loggingEvent.Properties["url"].ToString());
                if (Result != "UnSucced!!")
                {
                    //Say Excellent.... !
                }
                else
                {
                    //Say Opps....!!

                }
            }
            catch (Exception ex)
            {
                throw new ApplicationException("An error occured while invoking the Logging REST API", ex);
            }
        }

        public UrlLogAppender()
        {
            //
            // TODO: Add constructor logic here
            //
        }
    }
}`

我无法抓住我之前添加和填充的属性(**loggingEvent.Properties["browser"].ToString()**?!?!?!!?)

我的Web.Config是这样的:

  <appender name="UrlAppender" type="log4net.Extensions.UrlLogAppender">
      <threshold value="ALL"/>
      <CallingApp value="Base" />
      <datePattern value="_yyyy-MM-dd.lo'g'"/>
      <APIkey value="321" />
      <CustomerName value="Kanon" />

      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%date User:%identity IP:%X{addr} Browser: %X{browser} Url: %X{url} [%thread] %-5level %c:%m%n"/>
      </layout>
    </appender>

请帮帮我!

3 个答案:

答案 0 :(得分:16)

您有两种方法可以访问已在XML文件中配置的属性。如果您有这样的配置:

<appender name="Test" type="MyAppender, MyAssembly">
    <intProperty>1234</intProperty>
    <stringProperty>hello</stringProperty>

    <layout> ... </layout>
</appender>

您的Appender类可能如下所示:

public class MyAppender : AppenderSkeleton
{
    public int IntProperty { get; set; }

    public override void Append(LoggingEvent loggingEvent)
    {
        // implement your functionality
    }

    public void AddStringProperty(string value)
    {
        // do whatever has to be done
    }
}

您可以指定与配置文件中的XML元素同名的公共属性,或者提供一个只接受一个参数的公共方法(XML元素的值),并命名为Add<name of XML element> 。 log4net将在你的appender类中查找其中一个(case是不变的)并在appender初始化时调用它们。

答案 1 :(得分:3)

最后我找到了它..... :) 我必须把这些行放在MyAppender(UrlAppender)中:

public class UrlLogAppender : AppenderSkeleton
    {

        public string APIkey { get; set; }
        public string CustomerName { get; set; }

        protected override void Append(LoggingEvent loggingEvent)
        {
            try
            {
                Base.LogToDataBase.WebService1 LogtoWebserver = new Base.LogToDataBase.WebService1();

    loggingEvent.Properties["addr"] = System.Web.HttpContext.Current.Request.UserHostAddress;
    loggingEvent.Properties["browser"] = System.Web.HttpContext.Current.Request.Browser.Browser + " : " + System.Web.HttpContext.Current.Request.Browser.Version;
    loggingEvent.Properties["url"] = System.Web.HttpContext.Current.Request.Url.AbsoluteUri;
}
}
}

并使用它:

LogtoWebserver.Log(CustomerName, APIkey, loggingEvent.TimeStamp.ToString(),    
         loggingEvent.ThreadName.ToString(), loggingEvent.Level.ToString(), 
         loggingEvent.LoggerName, loggingEvent.RenderedMessage, 
         loggingEvent.ExceptionObject.InnerException.Message.ToString(), 
         loggingEvent.Properties["addr"].ToString(), 
         loggingEvent.Properties["browser"].ToString(), 
         loggingEvent.Properties["url"].ToString());

答案 2 :(得分:-1)

我认为您可能需要创建自定义AppenderParameters,以便可以通过您在PatternLayout中使用的值来映射它们。看看这个example - 尝试仅添加一个参数,然后在成功时添加其余参数。此外,尝试打开log4net自己的跟踪 - 它可以帮助您查明问题区域。