Log4Net 使用 AdoNetAppender (log4net 1.2.10.0)

1. 项目中引入log4net.dll
   
2. Global.asax.cs 中加入
   [assembly: log4net.Config.XmlConfigurator(ConfigFileExtension="log4net",Watch=true)]
   
3. Global.asax.cs 的 Application_Start() 方法中加入
   log4net.Config.XmlConfigurator.Configure();
   
4. 项目中新建一个 log4net 的配置文件 App.dll.log4net
   <?xml version="1.0" encoding="utf-8" ?>
   <log4net>
   <appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender">
       <bufferSize value="100" />
       <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
       <connectionString value="data source=[database server];initial catalog=[database name];integrated security=false;persist security info=True;User ID=[user];Password=[password]" />
       <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>
   </appender>
   <root>
       <level value="ALL" />           
       <appender-ref ref="ADONetAppender" />       
   </root>
   </log4net>
   
   
5. 在数据库中建表
   CREATE TABLE [dbo].[Log] (
       [Id] [int] IDENTITY (1, 1) NOT NULL,
       [Date] [datetime] NOT NULL,
       [Thread] [varchar] (255) NOT NULL,
       [Level] [varchar] (50) NOT NULL,
       [Logger] [varchar] (255) NOT NULL,
       [Message] [varchar] (4000) NOT NULL,
       [Exception] [varchar] (2000) NULL
   )
   
   
   
6. 使用
   
   using System;
   using System.Collections;
   using System.ComponentModel;
   using System.Data;
   using System.Drawing;
   using System.Web;
   using System.Web.SessionState;
   using System.Web.UI;
   using System.Web.UI.WebControls;
   using System.Web.UI.HtmlControls;
   
   using log4net;
   using log4net.Config;
   
   namespace WebApp
   {
       /**//// <summary>
       /// Summary description for WebForm1.
       /// </summary>
       public class WebForm1 : System.Web.UI.Page
       {
           private static readonly ILog log = log4net.LogManager.GetLogger(typeof(WebForm1));
   
           protected System.Web.UI.WebControls.Button Button1;
   
           private void Page_Load(object sender, System.EventArgs e)
           {
   
           }
   
           Web Form Designer generated code#region Web Form Designer generated code
           override protected void OnInit(EventArgs e)
           {
               //
               // CODEGEN: This call is required by the ASP.NET Web Form Designer.
               //
               InitializeComponent();
               base.OnInit(e);
           }
           
           /**//// <summary>
           /// Required method for Designer support - do not modify
           /// the contents of this method with the code editor.
           /// </summary>
           private void InitializeComponent()
           {    
               this.Button1.Click += new System.EventHandler(this.Button1_Click);
               this.Load += new System.EventHandler(this.Page_Load);
   
           }
           #endregion
   
           private void Button1_Click(object sender, System.EventArgs e)
           {
               log.Info("这是我在使用Log4Net");
           }
       }
   }