log4net for web快速入门

 

园子里翻了一些文章，大多语焉不详，或许我没有仔细了解。

现在终于调通了，加入了log4net自身的调试信息。可以查看log4net不输出日志的问题。

这是项目中实际的web.config文件。

建一个页面，贴入下面的代码就可以了，配置一下Global.asax就可以了。

自己撞了半天的墙，经验贴出来，希望能给大家帮助！自己也留个爪，备忘！

例子主要演示了：

1：把log文件存入到指定目录（很多例子是..\log\logfile，验证不对，应该是：..\\log\\logfile）

2：按日期生成Log文件

3：log4net自身的debug。

log4net为 1. 2. 0. 30714

实际中碰到个问题，用发布的项目不能写log，把本地的代码全部复制过去，就可以写了，不明白

Global.asax

<%@ Application Language="C#" %>

<script runat="server">

    void Application_Start(object sender, EventArgs e)
    {
        // Code that runs on application startup
         log4net.Config.DOMConfigurator.Configure();

    }
    void Application_End(object sender, EventArgs e)
    {
        //  Code that runs on application shutdown

    }
    void Application_Error(object sender, EventArgs e)
    {
        // Code that runs when an unhandled error occurs

    }

    void Session_Start(object sender, EventArgs e)
    {
        // Code that runs when a new session is started

    }

    void Session_End(object sender, EventArgs e)
    {
        // Code that runs when a session ends.
        // Note: The Session_End event is raised only when the sessionstate mode
        // is set to InProc in the Web.config file. If session mode is set to StateServer
        // or SQLServer, the event is not raised.

    }
</script>

default.aspx

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        log4net.ILog logger = log4net.LogManager.GetLogger(this.GetType());
        logger.Debug("this is test!"); 
    }
}

 

web.config

<?xml version="1.0" encoding ="utf-8"?>
<!--
    Note: As an alternative to hand editing this file you can use the
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in
    machine.config.comments usually located in
    \Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
  </configSections>
  <!-- *************程序运行日志部分 ********************-->
  <log4net debug="true">
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
       <file value="..\\log\\logfile" />
       <appendToFile value="true" />     
       <maxSizeRollBackups value="10" />
       <maximumFileSize value="2MB" />
      <!--名称是否可以更改 为false为可以更改-->
      <param name="StaticLogFileName" value="false" />
      <!--文件名称-->
      <param name="DatePattern" value="yyyyMMdd&quot;.txt&quot;" />
      <param name="RollingStyle" value="Composite" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%d [%r] [%t] %-5p %c  - %m%n------------------------------%n" />
      </layout>
    </appender>
    <root>
      <level value="debug" />
      <appender-ref ref="RollingLogFileAppender" />
    </root>
  </log4net>
  <!-- *************程序配置项设置部分 ********************-->
  <appSettings>
     

    <!--log4net self-->
      <add key="log4net.Internal.Debug" value="true" />
  </appSettings>
 
      <system.web>

    <!--
            Set compilation debug="true" to insert debugging
            symbols into the compiled page. Because this
            affects performance, set this value to true only
            during development.
        -->
    <compilation debug="true"/>
    <!--
            The <authentication> section enables configuration
            of the security authentication mode used by
            ASP.NET to identify an incoming user.
        -->
    <authentication mode="Windows"/>
    <!--
            The <customErrors> section enables configuration
            of what to do if/when an unhandled error occurs
            during the execution of a request. Specifically,
            it enables developers to configure html error pages
            to be displayed in place of a error stack trace.

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>
        -->
  </system.web>
  <system.diagnostics>
    <trace autoflush="true">
      <listeners>
        <add name="textWriterTraceListener"   type="System.Diagnostics.TextWriterTraceListener"  initializeData="C:\Inetpub\wwwroot\log4.txt" />
      </listeners>
    </trace>
  </system.diagnostics>
</configuration>