網上很多配置log4net的方法,但是排行靠前的 根本就沒有說明清除,導緻浪費了兩個小時來搞清楚如何配置,真是無語,特寫此文,給那些剛接觸log4net的朋友
1,參考連結
http://blog.sina.com.cn/s/blog_642e41c201014pml.html
此方法是直接将配置檔案配置在app.config
<configSections>
<!--在配置選項中加入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" /> <!--定義用檔案來儲存日志，生成的檔案log.txt放在logs目錄中，logs檔案夾和應用程式生成的bin檔案夾在同一目錄下。-->
<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">
<!--定義輸出風格-->
<param name="ConversionPattern" value="%d [%t] %-5p %c - %m%n" />
<param name="Header" value="
----------------------header--------------------------
" />
<param name="Footer" value="
----------------------footer--------------------------
" />
</layout>
</appender>
<appender>
<!--一個配置檔案可以有很多appender,一個appender節就相當于一個日志輸出媒體或方法。-->
</appender>
<logger name="logApp">
<!--定義logger對象的名字為logApp,以友善在代碼中使用logger-->
<!--配置項可以不配置-->
<level value="ALL" />
<!--定義輸出的資訊等級為所有其中包括Fatal.Error.Warn.Info.Debug-->
</logger>
<root>
<!--定義日志輸出的方式和等級-->
<level value="INFO" />
<appender-ref ref="LogFile" /><!--選擇了檔案輸出，注意粗體部分對應的名稱-->
</root>
</log4net>
第二種方式就是單獨将配置檔案配置在log4net.config中,網上大多數都是這種方法,但是卻沒有說明關鍵的一步
參考連結
http://www.cnblogs.com/zfanlong1314/p/3662679.html
1. 建立一個配置檔案,log4net.config配置方法同成web.config或app.config一緻; 2.如果windows應用程式請把配置檔案設為:複制到輸出目錄 修改方法:在log4net.config上右擊-->屬性--->把 "複制到輸出目錄" 值改為 true ; 3.在要用到log4的地方命名空間上邊加上:[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config" , Watch = true )] 4,vb.net是在AssemblyInfo.vb(ide上看不到,需要在檔案夾搜尋到)上添加
<Assembly: log4net.Config.XmlConfigurator(ConfigFile:="log/log4net.config", Watch:=True)>
3,自定義textbox日志輸出
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)
{
//若是超過10行 則清楚
if (TextBox.Lines.Length > 50)
{
TextBox.Clear();
}
this.TextBox.AppendText(str);
}
}
}
form中的代碼為
//讀取配置檔案的資訊
log1 = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
//設定textbox列印日志
var logPattern = "%d{yyyy-MM-dd HH:mm:ss} --%-5p-- %m%n";
var textBox_logAppender = new TextBoxBaseAppender()
{
TextBox = this.textBox1,//注釋後 就隻有檔案log
Layout = new PatternLayout(logPattern)
};
//相當于root标簽下的 <appender-ref ref="LogFile" />
log4net.Config.BasicConfigurator.Configure(textBox_logAppender);
listview代碼為
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>50)
{
listView.Items.Clear();
}
ListViewItem item = new ListViewItem();
item.Text = str.ToString();
listView.BeginUpdate();
listView.Items.Add(item);
listView.Items[listView.Items.Count - 1].EnsureVisible();//滾動到最後
listView.EndUpdate();
}
}
}
demo 下載下傳 http://download.csdn.net/download/sc6231565/9791817
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