IIS中托管的WCF服务库的log4net

Mare Infinitus 发表于 Dev

有海

对于一个项目，我有一个WCF服务库（目前非常简单），该库通过WCF服务网站项目托管在IIS 7.5中。

对于该WCF服务库，我需要log4net来记录一些主要事件。

但是在启动并访问该网站后，没有创建日志文件。

这是我的配置详细信息：

WCF服务库：

App.config (is containing the following)

<appSettings>
    <add key="log4net-config-file" value="log4net.config"/>
    <!-- <add key="log4net.Internal.Debug" value="true"/> -->
</appSettings>

log4net.config

<?xml version="1.0"?>
<configuration>
  <configSections>
    <section name="log4net" type="System.Configuration.IgnoreSectionHandler"/>
  </configSections>
  <log4net>
    <root>
      <level value="DEBUG"/>
      <appender-ref ref="RollingLogFileAppender"/>
    </root>
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <file value="C:\\Temp\\Logfile.txt"/>
      <appendToFile value="true"/>
      <rollingStyle value="Size"/>
      <datePattern value="yyyyMMdd"/>
      <maxSizeRollBackups value="5"/>
      <maximumFileSize value="100KB"/>
      <staticLogFileName value="true"/>
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%d [%t] %-5p %c - %m%n"/>
      </layout>
    </appender>
  </log4net>
</configuration>

In AssemblyInfo.cs
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]

On top of the Service class
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Required)]

In the Static Constructor (mainly due to fiddling around)
string configFile = ConfigurationManager.AppSettings["log4net-config-file"];
XmlConfigurator.Configure(new FileInfo(configFile));
logger = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

In the non-static constructor:
logger.Info("Hello world!");

Wcf服务网站项目：

 Web.Config is basically the same as App.Config of service library

 <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="true"/>

到目前为止我尝试过的是：

将IUSR（这是服务正在运行的）对C：\ Temp \的访问权限更改为写入（和修改）
重启机器
阅读大量的文章和做题的话题如配置log4net的为IIS承载WCF服务，这快速和肮脏的指导log4net的web应用为
activated log4net internal logging (which is normally seen in DebugView)

There is no output in DebugView and nothing about log4net in the IIS configured logs.

How can I find out what is wrong?

What can I do to find out why it is not working?

Mare Infinitus

The problem was:

When hosted in IIS, the log4net config file was searched in the current directory of IIS, which is in my case:

C:\Windows\System32\inetsrv

But the config file is saved in the physical path of the WCF service.

So I had in the Web.config

<appSettings>
    <add key="log4net_config" value="log4net.config" />
</appSettings>

And in the Constructor of the Service-class I call

var fullPath = ConfigurationManager.AppSettings["log4net_config"];

var physicalPath = System.Web.Hosting.HostingEnvironment.MapPath("/");

// to keep it compatible with self hosting 
if (physicalPath != null)
{
    fullPath = Path.Combine(physicalPath, fullPath);
}

var fileInfo = new FileInfo(fullPath);

XmlConfigurator.ConfigureAndWatch(fileInfo);

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