你好,LOG4NET

你好LOG4NET
-----在C#中使用LOG4NET

1.下载log4net (Google log4net)
2.unzip log4net
3.运行VS,新建 c# Windows应用程序。
4.添加引用Log4NET
5.新建一个应用程序配置文件App.config(具体内容附在后面)
6.打开Form1.cs,
在Namespace上添加一行 [assembly: log4net.Config.DOMConfigurator(Watch=true)]
在类Form1中添加一个静态变量
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

7.添加一个按钮。在按钮处理函数中添加一行 log.Warn("你好!");

8.运行程序。点一下按钮。

OK,打开Bin\Debug\log-file.txt,可以看到“你好”。

附.App.config

 1<configuration>
 2<!-- Register a section handler for the log4net section -->
 3<configsections>
 4<section name="log4net" type="System.Configuration.IgnoreSectionHandler"></section>
 5</configsections>
 6<appsettings>
 7<!-- To enable internal log4net logging specify the following appSettings key -->
 8<!-- <add key="log4net.Internal.Debug" value="true"/> \-->
 9</appsettings>
10<!-- This section contains the log4net configuration settings -->
11<log4net>
12<!-- Define some output appenders -->
13<appender name="LogFileAppender" type="log4net.Appender.FileAppender">
14<param name="File" value="log-file.txt"/>
15<!-- Example using environment variables in params -->
16<!-- <param name="File" value="${TMP}\\\log-file.txt" /> \-->
17<param name="AppendToFile" value="true"/>
18<!-- An alternate output encoding can be specified -->
19<!-- <param name="Encoding" value="unicodeFFFE" /> \-->
20<layout type="log4net.Layout.PatternLayout">
21<param name="Header" value="[Header]\r\n"/>
22<param name="Footer" value="[Footer]\r\n"/>
23<param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &lt;%X{auth}&gt; - %m%n"/>
24</layout>
25<!-- Alternate layout using XML   
26<layout type="log4net.Layout.XMLLayout" /> \-->
27</appender>
28<!-- Setup the root category, add the appenders and set the default level -->
29<root>
30<level value="ALL"></level>
31<appender-ref ref="LogFileAppender"></appender-ref>
32<!-- <appender-ref ref="A" /> \-->
33</root>
34<!-- Specify the level for some specific categories -->
35<logger name="SLog4net.Form1">
36<!-- <appender-ref ref="B" /> \-->
37<level value="ALL"></level>
38<appender-ref ref="RollingLogFileAppender"></appender-ref>
39</logger>
40</log4net>
41</configuration>
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