Log4Net基礎配置
阿新 • • 發佈：2018-08-14
publickey app 嚴重 target 創建 strong mar ssa style
一.組件引用
1.首先nuget中引入log4net
2.項目AssemblyInfo.cs引入log4net, 文件路徑：項目/Properties/AssemblyInfo.cs
註：如果不在此引入直接在global中引入，在不部署到IIS中時本地測試是可以用的，如果要部署到IIS中則需要添加，請註意。
3.global中引入
log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo("log4net.config"));
二.log4net.config配置
1.寫入文件
註意：如果是有多個appender寫文件配置，如果記錄則會同時寫入多個appender指定的文件中，如需解決此問題，需要看底層代碼重寫，目前暫時用不到所以沒去處理。
<?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/> </configSections> <system.web> <compilation debug="true" targetFramework="4.0" /> </system.web> <log4net> <!--定義輸出到文件中--> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <!--輸出文件路徑--> <file type="log4net.Util.PatternString" value="Log/%date{yyyy}/%date{yyyyMM}/"/> <appendToFile value="true"/> <rollingStyle value="Date"/> <datePattern value="yyyyMMdd‘.txt‘"/> <staticLogFileName value="false"/> <param name="MaxSizeRollBackups" value="100"/> <layout type="log4net.Layout.PatternLayout"> <!--每條日誌末尾的文字說明--> <!--輸出格式--> <conversionPattern value="%newline %n記錄時間：%date %n線程ID:[%thread] %n日誌級別： %-5level %n類：%logger property: [%property{NDC}] - %n描述：%message%newline %n"/> </layout> </appender> <root> <!--(高) OFF > FATAL > ERROR > WARN > INFO > DEBUG > ALL (低) --> <level value="ALL"/> <!--文件形式記錄日誌--> <appender-ref ref="RollingLogFileAppender"/> </root> </log4net> </configuration>
2.寫入數據庫
註意點：
- 寫入數據庫appender type類型為：log4net.Appender.AdoNetAppender
- 可以為多種級別信息創建不同的appender，以name區分
- 請註意每添加一個appender，需要增加過濾器用於識別logger,同時需要增加DenyAllFilter，防止其他appender也插入日誌，loggerToMatch中value對應代碼中 logger別名。
<filter type="log4net.Filter.LoggerMatchFilter"> <loggerToMatch value="gops" /> </filter> <filter type="log4net.Filter.DenyAllFilter" />
LogHelper類：
/// <summary> /// 日誌輔助類 /// </summary> public class LogHelper { private static log4net.ILog log = null; static LogHelper() { log = log4net.LogManager.GetLogger("gops"); } /// <summary> /// 普通日誌 /// </summary> /// <param name="content"></param> public static void Info(string content) { try { log.Info(content); } catch { } } /// <summary> /// 調試日誌 /// </summary> /// <param name="content"></param> public static void Debug(string content, Exception ex = null) { try { log.Debug(content,ex); } catch { } } /// <summary> /// 錯誤日誌 /// </summary> /// <param name="content"></param> public static void Error(string content,Exception ex=null) { try { log.Error(content,ex); } catch { } } /// <summary> /// 嚴重錯誤日誌 /// </summary> /// <param name="content"></param> public static void Fatal(string content, Exception ex = null) { try { log.Fatal(content,ex); } catch { } } /// <summary> /// 警告日誌 /// </summary> /// <param name="content"></param> public static void Warn(string content, Exception ex = null) { try { log.Warn(content,ex); } catch { } } }
完整代碼：
<?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/> </configSections> <system.web> <compilation debug="true" targetFramework="4.0" /> </system.web> <log4net> <!--<appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender"> <bufferSize value="1" /> <connectionType value="System.Data.SqlClient.SqlConnection,System.Data, Version=2.0.0.0, Culture=neutral,PublicKeyToken=b77a5c561934e089" /> <connectionString value="數據庫連接" /> <commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @message, @exception)" /> <parameter> <parameterName value="@log_date" /> <dbType value="DateTime" /> <layout type="log4net.Layout.RawTimeStampLayout" /> </parameter> <parameter> <parameterName value="@thread" /> <dbType value="String" /> <size value="255" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%thread" /> </layout> </parameter> <parameter> <parameterName value="@log_level" /> <dbType value="String" /> <size value="50" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%level" /> </layout> </parameter> <parameter> <parameterName value="@logger" /> <dbType value="String" /> <size value="255" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%logger" /> </layout> </parameter> <parameter> <parameterName value="@message" /> <dbType value="String" /> <size value="4000" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%message" /> </layout> </parameter> <parameter> <parameterName value="@exception" /> <dbType value="String" /> <size value="2000" /> <layout type="log4net.Layout.ExceptionLayout" /> </parameter> <filter type="log4net.Filter.LoggerMatchFilter"> <loggerToMatch value="gops1" /> </filter> <filter type="log4net.Filter.DenyAllFilter" /> </appender>--> <!--接口日誌--> <appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender"> <bufferSize value="1" /> <connectionType value="System.Data.SqlClient.SqlConnection,System.Data, Version=2.0.0.0, Culture=neutral,PublicKeyToken=b77a5c561934e089" /> <connectionString value="數據庫連接" /> <commandText value="execute LogInsert @tablename,@thread,@log_level,@logger,@message,@exception" /> <parameter> <parameterName value="@tablename" /> <dbType value="String" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date{OpenApiyyyyMM}" /> </layout> </parameter> <parameter> <parameterName value="@log_date" /> <dbType value="DateTime" /> <layout type="log4net.Layout.RawTimeStampLayout" /> </parameter> <parameter> <parameterName value="@thread" /> <dbType value="String" /> <size value="255" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%thread" /> </layout> </parameter> <parameter> <parameterName value="@log_level" /> <dbType value="String" /> <size value="50" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%level" /> </layout> </parameter> <parameter> <parameterName value="@logger" /> <dbType value="String" /> <size value="255" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%logger" /> </layout> </parameter> <parameter> <parameterName value="@message" /> <dbType value="String" /> <size value="4000" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%message" /> </layout> </parameter> <parameter> <parameterName value="@exception" /> <dbType value="String" /> <size value="2000" /> <layout type="log4net.Layout.ExceptionLayout" /> </parameter> <!--請註意每添加一個appender，需要增加過濾器用於識別logger,同時需要增加DenyAllFilter，防止其他appender也插入日誌--> <!--<filter type="log4net.Filter.LoggerMatchFilter"> <loggerToMatch value="OpenApiLog" /> </filter> <filter type="log4net.Filter.DenyAllFilter" />--> <filter type="log4net.Filter.LoggerMatchFilter"> <loggerToMatch value="gops" /> </filter> <filter type="log4net.Filter.DenyAllFilter" /> </appender> <root> <!--(高) OFF > FATAL > ERROR > WARN > INFO > DEBUG > ALL (低) --> <level value="all" /> <appender-ref ref="AdoNetAppender"/> <!--<appender-ref ref="OpenApiAppender"/>--> </root> </log4net> </configuration>
Log4Net基礎配置