网上很多配置log4net的方法,但是排行靠前的 根本就没有说明清除,导致浪费了两个小时来搞清楚如何配置,真是无语,特写此文,给那些刚接触log4net的朋友
1、参考链接：http://blog.sina.com.cn/s/blog_642e41c201014pml.html
此方法是直接将配置文件配置在app.config
<configSections>
<!--在配置选项中加入log4net的引用-->
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
</configSections>
<log4net>
<appender name="LogFile" type="log4net.Appender.RollingFileAppender,log4net" >
<param name="File" value="../../logs/log.txt" /> <!--定义用文件来保存日志，生成的文件log.txt放在logs目录中，logs文件夹和应用程序生成的bin文件夹在同一目录下。-->
<param name="AppendToFile" value="false" />
<param name="RollingStyle" value="Date" />
<param name="DatePattern" value="yyyy.MM.dd" />
<param name="StaticLogFileName" value="true" />
<layout type="log4net.Layout.PatternLayout,log4net">
<!--定义输出风格-->
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
<param name="Header" value=" ----------------------header-------------------------- " />
<param name="Footer" value=" ----------------------footer-------------------------- " />
</layout>
</appender>
<appender>
<!--一个配置文件可以有很多appender,一个appender节就相当于一个日志输出介质或方法。-->
</appender>
<logger name="logApp">
<!--定义logger对象的名字为logApp,以方便在代码中使用logger-->
<!--配置项可以不配置-->
<level value="ALL" />
<!--定义输出的信息等级为所有其中包括Fatal.Error.Warn.Info.Debug-->
</logger>
<root>
<!--定义日志输出的方式和等级-->
<level value="INFO" />
<appender-ref ref="LogFile" /><!--选择了文件输出，注意粗体部分对应的名称-->
</root>
</log4net>
第二种方式就是单独将配置文件配置在log4net.config中,网上大多数都是这种方法,但是却没有说明关键的一步
参考链接：http://www.cnblogs.com/zfanlong1314/p/3662679.html
1. 新建一个配置文件,log4net.config配置方法同成web.config或app.config一致; 2.如果windows应用程序请把配置文件设为:复制到输出目录 修改方法:在log4net.config上右击-->属性--->把"复制到输出目录" 值改为true;
3.在要用到log4的地方命名空间上边加上:[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]
2、输出到自定义Textbox日志输出
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using log4net.Appender;
using System.Windows.Forms;
using log4net.Core;
using log4net.Layout; namespace log4myself
{
/// <summary>
/// Usage:
/// log4net.Config.BasicConfigurator.Configure();
/// var logPattern = "%date [%thread] %-5level %logger !%M - %message%newline";
/// var logAppender = new TextBoxBaseAppender()
/// {
/// TextBox = this.textBox2,
/// Layout = new PatternLayout(logPattern)
/// };
///
/// ((log4net.Repository.Hierarchy.Hierarchy)log4net.LogManager.GetLoggerRepository()).Root.AddAppender(logAppender);
/// </summary>
public class TextBoxBaseAppender : AppenderSkeleton
{
public TextBoxBase TextBox { get; set; } public TextBoxBaseAppender()
{
} protected override void Append(LoggingEvent loggingEvent)
{
if (this.TextBox == null)
{
return;
} if (!this.TextBox.IsHandleCreated)
{
return;
} if (this.TextBox.IsDisposed)
{
return;
} var patternLayout = this.Layout as PatternLayout; var str = string.Empty;
if (patternLayout != null)
{
str = patternLayout.Format(loggingEvent); if (loggingEvent.ExceptionObject != null)
{
str += loggingEvent.ExceptionObject.ToString() + Environment.NewLine;
}
}
else
{
str = loggingEvent.LoggerName + "-" + loggingEvent.RenderedMessage + Environment.NewLine;
} if (!this.TextBox.InvokeRequired)
{
printf(str);
}
else
{
this.TextBox.BeginInvoke((MethodInvoker)delegate
{
if (!this.TextBox.IsHandleCreated)
{
return;
} if (this.TextBox.IsDisposed)
{
return;
}
printf(str);
});
}
} private void printf(string str)
{
//若是超过10行 则清楚
if (TextBox.Lines.Length > )
{
TextBox.Clear();
}
this.TextBox.AppendText(str);
}
}
}
在Form中使用的时候的代码为：
//读取配置文件的信息
log1 = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); //设置textbox打印日志
var logPattern = "%d{yyyy-MM-dd HH:mm:ss} --%-5p-- %m%n";
var textBox_logAppender = new TextBoxBaseAppender()
{
TextBox = this.textBox1,//注释后 就只有文件log
Layout = new PatternLayout(logPattern)
};
//相当于root标签下的 <appender-ref ref="LogFile" />
log4net.Config.BasicConfigurator.Configure(textBox_logAppender);
3、输出到Listview代码为：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using log4net.Appender;
using System.Windows.Forms;
using log4net.Core;
using log4net.Layout; namespace log4myself
{
public class ListViewBaseAppender : AppenderSkeleton
{
public ListView listView { get; set; } public ListViewBaseAppender()
{
} protected override void Append(LoggingEvent loggingEvent)
{
if (this.listView == null)
{
return;
} if (!this.listView.IsHandleCreated)
{
return;
} if (this.listView.IsDisposed)
{
return;
} var patternLayout = this.Layout as PatternLayout; var str = string.Empty;
if (patternLayout != null)
{
str = patternLayout.Format(loggingEvent); if (loggingEvent.ExceptionObject != null)
{
str += loggingEvent.ExceptionObject.ToString() + Environment.NewLine;
}
}
else
{
str = loggingEvent.LoggerName + "-" + loggingEvent.RenderedMessage + Environment.NewLine;
} if (!this.listView.InvokeRequired)
{
printf(str);
}
else
{
this.listView.BeginInvoke((MethodInvoker)delegate
{
if (!this.listView.IsHandleCreated)
{
return;
} if (this.listView.IsDisposed)
{
return;
} printf(str);
});
}
} private void printf(string str)
{
if (listView.Items.Count>)
{
listView.Items.Clear();
} ListViewItem item = new ListViewItem();
item.Text = str.ToString(); listView.BeginUpdate();
listView.Items.Add(item);
listView.Items[listView.Items.Count - ].EnsureVisible();//滚动到最后
listView.EndUpdate();
}
}
}
Demo 下载：http://download.****.NET/detail/sc6231565/9620527
原文链接：