有人用过 Log4Net 来记日志吗？关于配置文件的问题。
近期有一个项目需要使用到 Log4Net，以前没有弄过这东西，弄了下，现在无法生成日志，不知道问题出在哪儿了。
是这样的，我想把 Log4Net 再封装一下，就在解决方案中单独新建了一个类库项目，起名 Test.Log。
在这个项目下，引用了 log4net.dll，然后做了如下的事：
1、创建一个配置文件，起名 Log4Net.config，把它作为单独的配置文件，内容如下：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
<!-- log4net配置 -->
<log4net>
<!-- 指定用哪种 appender 输出，以及其默认的 level -->
<root>
<level value="ALL" />
<appender-ref ref="RollingLogFileAppender" />
</root>
<logger name="File_Log">
<level value="DEBUG" />
<appender-ref ref="RollingLogFileAppender" />
</logger>
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<param name="AppendToFile" value="true" />
<param name="File" value="D:\LogTest.txt" />
<param name="MaxSizeRollBackups" value="10" />
<param name="MaximumFileSize" value="100KB" />
<param name="RollingStyle" value="Size" />
<param name="StaticLogFileName" value="true" />
<layout type="log4net.Layout.PatternLayout">
<param name="Header" value="[Header]\r\n" />
<param name="Footer" value="[Footer]\r\n" />
<param name="ConversionPattern" value="%d [%t] %-5p %c [%x] - %m%n" />
</layout>
</appender>
</log4net>
</configuration>
2、在这个项目的 AssemblyInfo.cs 文件的最后添加了一行：
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "Log4Net.config", Watch = true)]
3、新建了一个类 TestLog.cs 来封装 Log4Net，代码如下：
using System;
using System.Collections.Generic;
using System.Text;
using log4net;
namespace Test.Log
{
#region log类
/// <summary>
/// 公用类
/// </summary>
public class LogBLL
{
public static void Debug(string message)
{
log4net.ILog log = log4net.LogManager.GetLogger("File_Log");
if (log.IsDebugEnabled)
{
log.Debug(message);
}
log = null;
}
public static void Error(string message)
{
log4net.ILog log = log4net.LogManager.GetLogger("File_Log");
if (log.IsErrorEnabled)
{
log.Error(message);
}
log = null;
}
public static void Fatal(string message)
{
log4net.ILog log = log4net.LogManager.GetLogger("File_Log");
if (log.IsFatalEnabled)
{
log.Fatal(message);
}
log = null;
}
public static void Info(string message)
{
log4net.ILog log = log4net.LogManager.GetLogger("File_Log");
if (log.IsInfoEnabled)
{
log.Info(message);
}
log = null;
}
public static void Warn(string message)
{
log4net.ILog log = log4net.LogManager.GetLogger("File_Log");
if (log.IsWarnEnabled)
{
log.Warn(message);
}
log = null;
}
}
#endregion log类
}
然后，在同一个解放方案中，建了一个测试的 Windows 应用程序项目，起名 TestLogExample。
在这个项目下，添加 TestLog 项目的引用，然后在 Form1 里写代码测试，如下：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Bap.Log;
namespace Bap.LoggingExample
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
LogBLL.Debug("测试信息");
}
}
}
结果什么文件都没有生成。DEBUG后，发现这一步生成的 log 是 null。
log4net.ILog log = log4net.LogManager.GetLogger("File_Log");//log为null
是不是没有读取到 Log4Net.config 这个配置文件？可是我哪一部做的有问题呢？
很急，请高人解答，分数不够可以再加，谢了。
[解决办法]
log4netConfig.xml文件没有？
[解决办法]
<configuration>
<!-- Register a section handler for the log4net section -->
<configSections>
<!--<section name="log4net" type="System.Configuration.IgnoreSectionHandler" />-->
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
</configSections>
<!-- This section contains the log4net configuration settings -->
<log4net debug="false">
<!--Define some output appenders -->
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<threshold value="INFO"/>
<file value="log\RollingLog.log"/>
<appendToFile value="true"/>
<maxSizeRollBackups value="10"/>
<maximumFileSize value="100"/>
<rollingStyle value="Size"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<header value="[Header]
"/>
<footer value="[Footer]
"/>
<conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline"/>
</layout>
</appender>
<appender name="LogFileAppender" type="log4net.Appender.FileAppender">
<threshold value="DEBUG"/>
<file value="log\MsrLog.log"/>
<!--Example using environment variables in params-->
<!--<file value="${TMP}\log-file.txt" />-->
<appendToFile value="true"/>
<!--An alternate output encoding can be specified-->
<!--<encoding value="unicodeFFFE" />-->
<layout type="log4net.Layout.PatternLayout">
<header value="[Header]
"/>
<footer value="[Footer]
"/>
<conversionPattern value="%date [%thread] %-5level %logger [%ndc] <%property{auth}> - %message%newline"/>
</layout>
</appender>
<!--messages in emails-->
<appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
<threshold value="FATAL"/>
<layout type="log4net.Layout.PatternLayout" value="%date [%thread] %-5level %logger - %message%newline"/>
<subject value="%-5level %logger"/>
<to value="jingtao.gao1@hisoft.com"/>
<from value="sdf@me.co.uk"/>
<smtpHost value="mail.hisoft.com"/>
</appender>
<!-- Setup the root category, add the appenders and set the default level -->
<root>
<level value="ALL"/>
<appender-ref ref="LogFileAppender"/>
<!--<appender-ref ref="ConsoleAppender" />-->
<!-- <appender-ref ref="ADONetAppender_SqlServer" /> -->
<!-- <appender-ref ref="NetSendAppender" /> -->
<appender-ref ref="SmtpAppender"/>
<!--<appender-ref ref="RollingLogFileAppender" />-->
</root>
</log4net>
........................................等等
封装的类:
namespace Msr.CommonLib
{
namespace General
{
/// <summary>
///
/// </summary>
public class JKLCLogging
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
/// <summary>
///
/// </summary>
/// <param name="strMsg"></param>
public static void Fatal(string strMsg)
{
log.Fatal(strMsg);
}
/// <summary>
///
/// </summary>
/// <param name="strMsg"></param>
public static void Error(string strMsg)
{
log.Error(strMsg);
}
/// <summary>
///
/// </summary>
/// <param name="strMsg"></param>
public static void Warn(string strMsg)
{
log.Warn(strMsg);
}
/// <summary>
///
/// </summary>
/// <param name="strMsg"></param>
public static void Debug(string strMsg)
{
log.Debug(strMsg);
}
/// <summary>
///
/// </summary>
/// <param name="strMsg"></param>
public static void Info(string strMsg)
{
log.Info(strMsg);
}
}
}
}
[解决办法]
上边的不好看，重新贴一下
<configuration> <!-- Register a section handler for the log4net section --> <configSections> <!-- <section name="log4net" type="System.Configuration.IgnoreSectionHandler" /> --> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/> </configSections> <!-- This section contains the log4net configuration settings --> <log4net debug="false"> <!--Define some output appenders --> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <threshold value="INFO"/> <file value="log\RollingLog.log"/> <appendToFile value="true"/> <maxSizeRollBackups value="10"/> <maximumFileSize value="100"/> <rollingStyle value="Size"/> <staticLogFileName value="true"/> <layout type="log4net.Layout.PatternLayout"> <header value="[Header]
"/> <footer value="[Footer]
"/> <conversionPattern value="%date [%thread] %-5level %logger [%ndc] - %message%newline"/> </layout> </appender> <appender name="LogFileAppender" type="log4net.Appender.FileAppender"> <threshold value="DEBUG"/> <file value="log\MsrLog.log"/> <!--Example using environment variables in params--> <!-- <file value="${TMP}\log-file.txt" /> --> <appendToFile value="true"/> <!--An alternate output encoding can be specified--> <!-- <encoding value="unicodeFFFE" /> --> <layout type="log4net.Layout.PatternLayout"> <header value="[Header]
"/> <footer value="[Footer]
"/> <conversionPattern value="%date [%thread] %-5level %logger [%ndc] <%property{auth}> - %message%newline"/> </layout> </appender> <!--messages in emails--> <appender name="SmtpAppender" type="log4net.Appender.SmtpAppender"> <threshold value="FATAL"/> <layout type="log4net.Layout.PatternLayout" value="%date [%thread] %-5level %logger - %message%newline"/> <subject value="%-5level %logger"/> <to value="jingtao.gao1@hisoft.com"/> <from value="sdf@me.co.uk"/> <smtpHost value="mail.hisoft.com"/> </appender> <!-- Setup the root category, add the appenders and set the default level --> <root> <level value="ALL"/> <appender-ref ref="LogFileAppender"/> <!-- <appender-ref ref="ConsoleAppender" /> --> <!-- <appender-ref ref="ADONetAppender_SqlServer" /> --> <!-- <appender-ref ref="NetSendAppender" /> --> <appender-ref ref="SmtpAppender"/> <!-- <appender-ref ref="RollingLogFileAppender" /> --> </root> </log4net> ........................................等等 封装的类: namespace Msr.CommonLib { namespace General { /// <summary> /// /// </summary> public class JKLCLogging { private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); /// <summary> /// /// </summary> /// <param name="strMsg"> </param> public static void Fatal(string strMsg) { log.Fatal(strMsg); } /// <summary> /// /// </summary> /// <param name="strMsg"> </param> public static void Error(string strMsg) { log.Error(strMsg); } /// <summary> /// /// </summary> /// <param name="strMsg"> </param> public static void Warn(string strMsg) { log.Warn(strMsg); } /// <summary> /// /// </summary> /// <param name="strMsg"> </param> public static void Debug(string strMsg) { log.Debug(strMsg); } /// <summary> /// /// </summary> /// <param name="strMsg"> </param> public static void Info(string strMsg) { log.Info(strMsg); } } } }