【ASP.NET】12.ASP.NET Web开发实现log日志打印

深碍√TFBOYSˉ_ 2022-05-31 10:56 454阅读 0赞

添加log需要四步：

1、引用log4net.dll，详见[http://logging.apache.org/log4net/][http_logging.apache.org_log4net]

2、项目跟目录下，添加log4net.config

<?xml version="1.0" encoding="utf-8" ?>
    <configuration>
      <configSections>
        <section name="log4net" type="System.Configuration.IgnoreSectionHandler"/>
      </configSections>
      <log4net>
        
        <appender name="LogFileAppender" type="log4net.Appender.FileAppender">
          
          <file value="D:/log4netfile/BYPlatformWAPI.log" />
          
          <appendToFile value="true" />
          
          <param name="StaticLogFileName" value="false"/>
          
          <rollingStyle value="Date" />
          
          <datePattern value="yyyyMMdd-HHmmss" />
          <layout type="log4net.Layout.PatternLayout">
            
            <conversionPattern value="记录时间：%date 日志级别：%level Log类：%logger - Log描述：\n %message%newline" />
          </layout>
        </appender>
    
        
        <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
          <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
          </layout>
        </appender>
        
        <appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
          <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
          </layout>
        </appender>
        
        <appender name="AdoNetAppender_Access" type="log4net.Appender.AdoNetAppender">
          <connectionString value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:log4net.mdb" />
          <commandText value="INSERT INTO LogDetails ([LogDate],[Thread],[Level],[Logger],[Message]) VALUES (@logDate, @thread, @logLevel, @logger,@message)" />
          
          <parameter>
            <parameterName value="@logDate" />
            <dbType value="String" />
            <size value="240" />
            <layout type="log4net.Layout.PatternLayout">
              <conversionPattern value="%date" />
            </layout>
          </parameter>
          <parameter>
            <parameterName value="@thread" />
            <dbType value="String" />
            <size value="240" />
            <layout type="log4net.Layout.PatternLayout">
              <conversionPattern value="%thread" />
            </layout>
          </parameter>
          <parameter>
            <parameterName value="@logLevel" />
            <dbType value="String" />
            <size value="240" />
            <layout type="log4net.Layout.PatternLayout">
              <conversionPattern value="%level" />
            </layout>
          </parameter>
          <parameter>
            <parameterName value="@logger" />
            <dbType value="String" />
            <size value="240" />
            <layout type="log4net.Layout.PatternLayout">
              <conversionPattern value="%logger" />
            </layout>
          </parameter>
          <parameter>
            <parameterName value="@message" />
            <dbType value="String" />
            <size value="240" />
            <layout type="log4net.Layout.PatternLayout">
              <conversionPattern value="%message" />
            </layout>
          </parameter>
        </appender>
        
        <root>
          <level value="ALL" />
          
          <appender-ref ref="LogFileAppender" />
          
          
          
        </root>
    
      </log4net>
    </configuration>

3、在/Properties/AssemblyInfo.cs文件的底部，添加一句：

[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]

4、在要实现的类中添加全局变量

using log4net;
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    
    namespace FreeDream_weixin
    {
        public partial class log4nettest : System.Web.UI.Page
        {
            private static readonly log4net.ILog log = LogManager.GetLogger(typeof(log4nettest));
            protected void Page_Load(object sender, EventArgs e)
            {
                log.Debug("这是我在使用Log4Net");
                log.Info("这是我在使用Log4Net info");
            }
        }
    }

日志输出如下图：

![20180222174142257][]

[http_logging.apache.org_log4net]: http://logging.apache.org/log4net/
[20180222174142257]: /images/20220531/8fd7690313474d4f984a39965d695cda.png