WinForm中如何使用Log4net

我不是女神ヾ 2021-11-26 19:10 610阅读 0赞

一、引用log4net.dll网上找一个即可

二、新建一个log4net的配置文件，log4net.cfg.xml，属性：内容，总是拷贝 很重要否则编译后不会创建Log File

<?xml version="1.0" encoding="utf-8" ?>
    <log4net>
      <appender name="rollingFile_App" type="log4net.Appender.RollingFileAppender,log4net" >
    
        <param name="File" value="Logs\CPBMP_WinForm" />
        <param name="AppendToFile" value="true" />
        <param name="RollingStyle" value="Date" />
        <param name="DatePattern" value=".yyyy.MM.dd.'log'" />
        <param name="StaticLogFileName" value="false" />
    
        <layout type="log4net.Layout.PatternLayout,log4net">
          <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] <%X{auth}> - %m%n" />
        </layout>
      </appender>
    
      
    
      <logger name="CPBMP_WinForm">
        <level value="Debug" />
        <appender-ref ref="rollingFile_App" />
      </logger>
      
    </log4net>

三、新建一类

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using  System;  
 using  System.Collections.Generic;  
 using  System.Text;  
 using  log4net;  
  
 namespace  CPBMP\_WinForm  
\{  
 public  sealed  class  NewLogManager  
\{  
 // Pre-defined logger name in web.config or app.config   
  public  const  string  LoggerName  =  " CPBMP\_WinForm " ;  
 public  const  int  EmptyFunctionKey  =  \- 1 ;  
 public  const  int  AnonymouseUserKey  =  \- 1 ;  
 public  static  readonly  ILog Logger  =  log4net.LogManager.GetLogger(LoggerName);  
  
 ///  <summary>   
 ///  Add a error log  
 ///  </summary>   
 ///  <param name="errorMessage"></param>   
  public  static  void  AddError( string  errorMessage)  
\{  
Logger.Error(errorMessage);  
\}  
  
 ///  <summary>   
 ///  Add a error log with an exception  
 ///  </summary>   
 ///  <param name="errorMessage"></param>   
 ///  <param name="ex"></param>   
  public  static  void  AddError( string  errorMessage, Exception ex)  
\{  
Logger.Error(errorMessage  \+  System.Environment.NewLine  \+  ex.Message  \+  System.Environment.NewLine  \+  ex.ToString());  
\}  
  
 ///  <summary>   
 ///  Add a warning log  
 ///  </summary>   
 ///  <param name="warnMessage"></param>   
  public  static  void  AddWarn( string  warnMessage)  
\{  
Logger.Warn(warnMessage);  
\}  
  
 ///  <summary>   
 ///  Add a warning log with an exception  
 ///  </summary>   
 ///  <param name="warnMessage"></param>   
 ///  <param name="ex"></param>   
  public  static  void  AddWarn( string  warnMessage, Exception ex)  
\{  
Logger.Warn(warnMessage  \+  System.Environment.NewLine  \+  ex.Message  \+  System.Environment.NewLine  \+  ex.ToString());  
\}  
  
 ///  <summary>   
 ///  Add a info log  
 ///  </summary>   
 ///  <param name="infoMessage"></param>   
  public  static  void  AddInfo( string  infoMessage)  
\{  
Logger.Info(infoMessage);  
\}  
  
 ///  <summary>   
 ///  Add a info log with an exception  
 ///  </summary>   
 ///  <param name="infoMessage"></param>   
 ///  <param name="ex"></param>   
  public  static  void  AddInfo( string  infoMessage, Exception ex)  
\{  
Logger.Info(infoMessage  \+  System.Environment.NewLine  \+  ex.Message  \+  System.Environment.NewLine  \+  ex.ToString());  
\}  
  
 ///  <summary>   
 ///  Add a debug log  
 ///  </summary>   
 ///  <param name="debugMessage"></param>   
  public  static  void  AddDebug( string  debugMessage)  
\{  
Logger.Debug(debugMessage);  
\}  
  
 ///  <summary>   
 ///  Add a debug log with an exception  
 ///  </summary>   
 ///  <param name="debugMessage"></param>   
 ///  <param name="ex"></param>   
  public  static  void  AddDebug( string  debugMessage, Exception ex)  
\{  
Logger.Debug(debugMessage  \+  System.Environment.NewLine  \+  ex.Message  \+  System.Environment.NewLine  \+  ex.ToString());  
\}  
  
 ///  <summary>   
 ///  Add a database error log  
 ///  </summary>   
 ///  <param name="objectName"> table or view name </param>   
 ///  <param name="dbAction"> either retrieve, update, delete </param>   
 ///  <param name="ex"></param>   
  public  static  void  AddDatabaseError( string  objectName, DatabaseAction dbAction, Exception ex)  
\{  
 string  logMessage  =  string .Empty;  
 switch  ( dbAction )  
\{  
 case  DatabaseAction.Select:  
logMessage  =  " Error occurred when retrieve data from table  "  \+  objectName;  
 break ;  
 case  DatabaseAction.Insert:  
logMessage  =  " Error occurred when insert data to table  "  \+  objectName;  
 break ;  
 case  DatabaseAction.Update:  
logMessage  =  " Error occurred when update data to table  "  \+  objectName;  
 break ;  
 case  DatabaseAction.Delete:  
logMessage  =  " Error occurred when delete data from table  "  \+  objectName;  
 break ;  
\}  
  
AddError(logMessage, ex);  
\}  
\}  
  
 ///  <summary>   
 ///  Enumeration for database action type  
 ///  </summary>   
  public  enum  DatabaseAction  
\{  
Select,  
Insert,  
Update,  
Delete  
\}  
  
  
\}

四、重要一步，启动时加载配置文件，并写Log

FileInfo file = new FileInfo(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "log4net.cfg.xml"));  
            log4net.Config.XmlConfigurator.Configure(file);  
            NewLogManager.AddInfo("Application is starting...");

转载于:https://www.cnblogs.com/blackbean/archive/2011/03/10/1979430.html

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