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<ApplicationLevelLogSettings>
<ApplicationLevelLogSetting Scope="Default">
<LogLocationSettings>
<LogLocation Name="ConsoleExtension" Active="True" LogLevel="Debug" />
<LogLocation Name="FileExtension" Active="False" LogLevel="All" />
<LogLocation Name="EventLogExtension" Active="False" LogLevel="Debug" />
<LogLocation Name="ArchiveExtension" Active="False" LogLevel="Debug" />
<LogLocation Name="MSMQExtension" Active="False" LogLevel="Debug" />
</LogLocationSettings>
</ApplicationLevelLogSetting>
</ApplicationLevelLogSettings>
Name对应此config文件的Extensions节点中的Extension节点的Name属性,在下面可以看到。
Active控制是否使用此配置项,因此我们可以看出,默认情况下,K2只使用“ConsoleExtension”,也就是控制台模式。
LogLevel控制日志的级别。为了看到更详细的信息,我们调节这个属性来实现,从简单到详细依次是Warning->Error->Info->Debug->All
K2的调试:
在管理工具-服务中将K2服务停止,然后点击开始菜单的K2 blackpearl-K2 Server,此时K2会以控制台模式来启动服务,K2的相关信息就可以方便的看到,在我们的代码中使用Console.WriteLine("message") 可以方便的输出到这里。

另外使用命令行"C:\Program Files\K2 blackpearl\Host Server\Bin\K2HostServer.exe" > c:\k2info.txt
可以将信息输出到c:\k2info.txtK2除了默认的集中记录日志的方式外,还让我们自己扩展实现自定义的记录方式,比如下面的片段:
<ApplicationLevelLogSettings>
<ApplicationLevelLogSetting Scope="Default">
<LogLocationSettings>
<LogLocation Name="ConsoleExtension" Active="False" LogLevel="Debug" />
<LogLocation Name="FileExtension" Active="False" LogLevel="All" />
<LogLocation Name="EventLogExtension" Active="False" LogLevel="Debug" />
<LogLocation Name="ArchiveExtension" Active="False" LogLevel="Debug" />
<LogLocation Name="MSMQExtension" Active="False" LogLevel="Debug" />
</LogLocationSettings>
</ApplicationLevelLogSetting>
<ApplicationLevelLogSetting Scope="SourceCode.Security.UserRoleManager.Runtime.UserRoleManagerServer">
<LogLocationSettings>
<LogLocation Name="ConsoleExtension" Active="True" LogLevel="Error" />
</LogLocationSettings>
</ApplicationLevelLogSetting>
</ApplicationLevelLogSettings>
我们可以看到,这里有两个ApplicationLevelLogSetting节点,不同的是两个ApplicationLevelLogSetting的Scope不同。具体情形我还没有具体尝试,抱歉,因为这样的扩展实现的效果非常有限。下面具体来说下另外一种方式的扩展:
在HostServerLogging.config,找到Extensions节点,可以看到这样的配置:
<Extensions>
<Extension Name="ConsoleExtension" type="SourceCode.Logging.Extension.ConsoleExtension">
<Property Name="Shorthand" value="true"/>
</Extension>
<Extension Name="EventLogExtension" type="SourceCode.Logging.Extension.EventLogExtension" />
<Extension Name="FileExtension" type="SourceCode.Logging.Extension.FileExtension">
<Property Name="LogFileName" value="HostServer.log"/>
<Property Name="LogFilePath" value="" />
<Property Name="HashAlgorithm" value="CRC32" />
</Extension>
<Extension Name="MSMQExtension" type="SourceCode.Logging.Extension.MSMQExtension">
<Property Name="QueuePath" value=".\private$\SCQueue"/>
</Extension>
<Extension Name="ArchiveExtension" type="SourceCode.Logging.Extension.ArchiveExtension">
<Property Name="HostServerConfigFileName" value="K2HostServer.config"/>
<Property Name="ConfigDBConnectionName" value="HostserverDB"/>
</Extension>
</Extensions>
using System;
using SourceCode.Logging;
using SourceCode.Logging.Extension;
using System.Net.Mail;
namespace LoggerExtension
{
public class Email : BaseExtension
{
public Email()
{
}
override protected void LogMessage(MessageObject mo, String logStrMsg)
{
try
{
//send email
}
catch
{
throw;
}
return;
}
}
}
<Extension Name="EmailExtension" type="LoggerExtension.Email" location="C:\LoggerExtension.dll"></Extension>
<LogLocation Name="EmailExtension" Active="True" LogLevel="All" />
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