log4net写入mysql完整例子

1，创建表log

 

CREATE TABLE `log` (

`id`  int(11) NOT NULL AUTO_INCREMENT ,

`log_datetime`  timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP ,

`log_thread`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL ,

`log_level`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL ,

`log_logger`  varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL ,

`log_message`  text CHARACTER SET utf8 COLLATE utf8_general_ci NULL ,

PRIMARY KEY (`id`)

)

ENGINE=InnoDB

DEFAULT CHARACTER SET=utf8 COLLATE=utf8_general_ci

AUTO_INCREMENT=12

ROW_FORMAT=DYNAMIC

;

 

 

2,添加配置文件log4net.config

将下面内存复制到txt中，txt重命名为log4net.config，放在网站或程序根目录下。

 

<?xml version="1.0"?>

 

<configuration>

  <configSections>

    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />

  </configSections>

 

  <log4net>

    <appender name="stdout" type="log4net.Appender.ConsoleAppender">

      <layout type="log4net.Layout.PatternLayout">

        <param name="ConversionPattern" value="[%d %l] %m%n" />

      </layout>

    </appender>

 

    <appender name="ADONetAppender" type="log4net.Appender.ADONetAppender">

      <param name="ConnectionType" value="MySql.Data.MySqlClient.MySqlConnection, MySql.Data" />

      <param name="ConnectionString" value="Server=192.168.16.247;port=3306;User ID=root;password=Juanpi123;database=spider;charset=utf8;Allow User Variables=True"/>

      <param name="CommandText" value="insert into log(log_datetime,log_thread,log_level,log_logger,log_message) values(@log_datetime, @log_thread , @log_level, @log_logger, @log_message)" />

 

      <param name="Parameter">

        <param name="ParameterName" value="@log_datetime" />

        <param name="DbType" value="DateTime" />

        <param name="Layout" type="log4net.Layout.PatternLayout">

          <param name="ConversionPattern" value="%d{yyyy'-'MM'-'dd HH':'mm':'ss'.'fff}" />

        </param>

      </param>

 

      <param name="Parameter">

        <param name="ParameterName" value="@log_thread" />

        <param name="DbType" value="String" />

        <param name="Size" value="255" />

        <param name="Layout" type="log4net.Layout.PatternLayout">

          <param name="ConversionPattern" value="%t" />

        </param>

      </param>

      <param name="Parameter">

        <param name="ParameterName" value="@log_level" />

        <param name="DbType" value="String" />

        <param name="Size" value="50" />

        <param name="Layout" type="log4net.Layout.PatternLayout">

          <param name="ConversionPattern" value="%p" />

        </param>

      </param>

      <param name="Parameter">

        <param name="ParameterName" value="@log_logger" />

        <param name="DbType" value="String" />

        <param name="Size" value="255" />

        <param name="Layout" type="log4net.Layout.PatternLayout">

          <param name="ConversionPattern" value="%c" />

        </param>

      </param>

      <param name="Parameter">

        <param name="ParameterName" value="@log_message" />

        <param name="DbType" value="String" />

        <param name="Size" value="10000" />

        <param name="Layout" type="log4net.Layout.PatternLayout">

          <param name="ConversionPattern" value="%m" />

        </param>

      </param>

 

    </appender>

 

    <appender name="file" type="log4net.Appender.RollingFileAppender">

      <param name="File" value="log\\log" />

      <param name="AppendToFile" value="true" />

      <param name="RollingStyle" value="Date" />

      <param name="DatePattern" value="yyyy-MM-dd" />

      <layout type="log4net.Layout.PatternLayout">

        <param name="ConversionPattern" value="[%d %l] %m%n" />

      </layout>

    </appender>

    <root>

      <level value="ALL" />

      <appender-ref ref="ADONetAppender" />

    </root>

    <logger name="*">

      <level value="ALL" />

      <appender-ref ref="ADONetAppender" />

    </logger>

  </log4net>

 

</configuration>

 

 

 

3，添加代码

新建一个类Log4net，代码如下：

 

    public class Log4net

    {

        /// <summary>

        /// 配置文件log4net.config是否加载

        /// </summary>

        public static readonly bool IsConfigLoaded = false;

        public static string ConfigFileName = "log4net.config";

        private static log4net.ILog logger = LogManager.GetLogger(typeof (Log4net));

 

        static Log4net()

        {

            string path = System.Web.HttpContext.Current.Server.MapPath(ConfigFileName);

            if (File.Exists(path))

            {

                log4net.Config.XmlConfigurator.ConfigureAndWatch(new FileInfo(path));

                IsConfigLoaded = true;

            }

        }

 

        public static void Error(string message)

        {

            if (IsConfigLoaded)

            {              

                logger.ErrorFormat(message);

            }

        }

 

        public static void Error(Type type,string message)

        {

            if (IsConfigLoaded)

            {

                log4net.ILog logger = LogManager.GetLogger(type);

                logger.ErrorFormat(message);

            }

        }

    }

 

 

4，添加动态库的引用。

(1)mysql.data.dll，用来连接mysql数据库的。

(2)log4net.dll，功能库。

可以从官网下载dll和源码。

http://logging.apache.org/log4net/download_log4net.cgi

 

5，使用

(1) Log4net.Error(string.Format("{0} 详细信息为:{1}", ex.Message, ex.ToString()));

(2)Log4net.Error(typeof(HomeController), string.Format("{0} 详细信息为:{1}", ex.Message, ex.ToString()));