log4net 自定義欄位儲存日誌到資料庫
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1、原始碼
using log4net;
using log4net.Layout;
using log4net.Layout.Pattern;
using System.Reflection;
namespace Logger
{
/// <summary>
/// 包含了所有的自定欄位屬性
/// </summary>
public class LogContent
{
public LogContent(string userName, string actionClick, string logText)
{
UserName = userName;
ActionClick = actionClick;
Message = logText;
}
/// <summary>
/// 系統登陸使用者
/// </summary>
public string UserName { get;set; }
/// <summary>
/// 動作事件
/// </summary>
public string ActionClick { get; set; }
/// <summary>
/// 日誌描述資訊
/// </summary>
public string Message { get; set; }
}
public class CustomLayout : PatternLayout
{
public CustomLayout()
{
this.AddConverter("property", typeof(LogInfoPatternConverter));
}
}
public class LogInfoPatternConverter : PatternLayoutConverter
{
protected override void Convert(System.IO.TextWriter writer, log4net.Core.LoggingEvent loggingEvent)
{
if (Option != null)
{
WriteObject(writer, loggingEvent.Repository, LookupProperty(Option, loggingEvent));
}
else
{
WriteDictionary(writer, loggingEvent.Repository, loggingEvent.GetProperties());
}
}
/// <summary>
/// 通過反射獲取傳入的日誌物件的某個屬性的值
/// </summary>
/// <param name="property"></param>
/// <returns></returns>
private object LookupProperty(string property, log4net.Core.LoggingEvent loggingEvent)
{
object propertyValue = string.Empty;
PropertyInfo propertyInfo = loggingEvent.MessageObject.GetType().GetProperty(property);
if (propertyInfo != null)
propertyValue = propertyInfo.GetValue(loggingEvent.MessageObject, null);
return propertyValue;
}
}
public class DBLog
{
private static ILog log;
private static ILog DBLogger
{
get
{
if (log == null)
log = LogManager.GetLogger("AppToDB");
return log;
}
}
public static void Info(string userName,string actionClick,string logText)
{
DBLogger.Info(new LogContent(userName,actionClick,logText ) );
}
}
}
2、web.config中的配置
如果資料庫中表結構欄位型別為nvarchar(max)時，則注意size中value值為-1，如：
<dbType value="String" />
<size value="-1" />
具體配置如下：
<log4net>
<appender name="ADONetAppender" type="log4net.Appender.ADONetAppender">
<bufferSize value="1" />
<connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<connectionString value="server=HPWIN10;database=MES_TEST;Integrated Security=True" />
<commandText value="INSERT INTO [dbo].SH_P3Log (LogTime,LogThread,LogMessage,ActionClick,UserName) values(@log_time,@log_thread,@log_message,@action_click,@user_name)" />
<parameter>
<parameterName value="@log_time" />
<dbType value="DateTime" />
<layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>
<parameter>
<parameterName value="@log_thread" />
<dbType value="String" />
<size value="10" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%thread" />
</layout>
</parameter>
<parameter>
<parameterName value="@log_message" />
<dbType value="String" />
<size value="-1" />
<layout type="Logger.CustomLayout">
<conversionPattern value="%property{Message}" />
</layout>
</parameter>
<parameter>
<parameterName value="@action_click" />
<dbType value="String" />
<size value="50" />
<layout type="Logger.CustomLayout">
<conversionPattern value="%property{ActionClick}" />
</layout>
</parameter>
<parameter>
<parameterName value="@user_name" />
<dbType value="String" />
<size value="30" />
<layout type="Logger.CustomLayout">
<conversionPattern value="%property{UserName}" />
</layout>
</parameter>
</appender>
<logger name="AppToDB" additivity="false">
<priority value="INFO" />
<appender-ref ref="ADONetAppender" />
</logger>
</log4net>
3、程式碼呼叫
Logger.DBLog.Info("張工","刪除訂單","刪除訂單："+PONo);