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  • How to Use Log4Net.dll store log into DB

    We can use following approach for storing Log in DB:

    One of the best ways to store log in the database using log4net coz it is easy to use and its world wide popularity. For storing log in the database all task are manage by log4net internally.

    At first you need to create a table for Storing log in the SqlServer database

    The table should be like as

    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

    )

    1. Download log4net from http://logging.apache.org/log4net/download.html

    2. Open visual studio and create an application.

    3. Add to the project a reference to the \bin\net\2.0\release\log4net.dll assembly in the log4net distribution.

    4. Now put this web.config/app.config file in configuration tag.

    <configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,Log4net"/> </configSections> <log4net> <root> <level value="DEBUG" /> <appender-ref ref="ADONetAppender" /> </root> <appender name="ADONetAppender" type="log4net.Appender.ADONetAppender"> <bufferSize value="100" /> <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" /> <connectionString value="server=servername; uid=Lion; pwd=Lionman; database=databasename" /> <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> </log4net>

    In the connection string tag you need to change server name and database. You also can decide how to define the security part of the connection string.

    There are two way to define the security part

    ?Use integrated Security

    ?State the username and the password in the connection string.

    In both cases you need to make sure that the user has access to the, SQL server, the database and the databasetable that Log4Net is going to use.

    If you use integrated security then the connection string should be like as

    <connectionString value=擠ata Source=servername;initial Catalog=databasename; Integrated Security=True;?>
     <add name="DBWordConnectionString" connectionString="Data Source=PC-20100717VZKC\SQLEXPRESS;Initial Catalog=Examination;uid=root;Pwd=root;" providerName="System.Data.SqlClient"/>

    5. To use log4net put this as a local class variable: private static readonly log4net.ILog log =log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

    6. And do this to write messages in the log file. log.Debug(攖his text will be in log file?;

    For Example,

    using System;

    using System.Collections.Generic;

    using System.Text; using log4net;

    using log4net.Config; using log4net.Core;

    using log4net.Repository.Hierarchy;

    using log4net.Appender;

    namespace LogPractice

    {

        class Program

        {

            private static readonly log4net.ILog log =log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

            static void Main(string[] args)

            {

                log4net.Config.XmlConfigurator.Configure();

                log.Debug("log Debug");

                log.Info("log Info");

                log.Warn("log Warn");

                log.Error("log Error");

                log.Fatal("log Fatal");

            }

        }

    }

    Now run the code then you can see the log stored in the database table.

    作者:Jacques Zhu
    出处:http://www.cnblogs.com/Jacques
    本文版权归作者和博客所有,欢迎转载。但未经作者同意,必须保留此段声明,且在文章页面明显位置给出原文链接,否则保留追究法律责任的权利。

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  • 原文地址:https://www.cnblogs.com/Jacques/p/2041629.html
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