每天记录一个日志 [英] Having a log per day

问题描述

目前，我的应用程序正在使用log4net来记录错误，web.config如下所示：

 < log4net的> 
< appender name =FileAppendertype =log4net.Appender.FileAppender> 
< file value =c：/paypal/logs/gateway.log/> 
< appendToFile value =true/> 
< layout type =log4net.Layout.PatternLayout> 
< conversionPattern value =％date [％thread]％-5level％logger [％property {NDC}]  - ％message％newline/> 
< / layout> 
< / appender> 
< root> 
< level value =DEBUG/> 
< appender-ref ref =FileAppender/> 
< / root> 
< / log4net> 
  

但是，这个问题是每天日志总是转到 gateway有没有人知道每天使用log4net有不同的日志文件吗？

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理想情况下，我不想每天晚上使用计划的任务手动编辑 web.config 。

解决方案

您应该使用 RollingFileAppender with rollingStyle Date 和datePattern yyyyMMdd （这将滚动每一天）。

配置示例：

  < appender name =FileAppendertype =log4net.Appender.RollingFileAppender> 
< file value =c：/paypal/logs/gateway.log/> 
< appendToFile value =true/> 
< rollingStyle value =Date/> 
< datePattern value =yyyyMMdd/> 
< layout type =log4net.Layout.PatternLayout> 
< conversionPattern value =％date [％thread]％-5level％logger [％property {NDC}]  - ％message％newline/> 
< / layout> 
< / appender> 
  

更新：我认为更好的方法是将日期包含在文件名中。并且使用datePattern值来显示何时应该创建新的日志文件。

 < appender name =FileAppendertype =log4net.Appender.RollingFileAppender> 
< file type =log4net.Util.PatternStringvalue =c：/ paypal / logs / gateway_％date {yyyyMMdd} .log/> 
< appendToFile value =true/> 
< rollingStyle value =Date/> 
< datePattern value =yyyyMMdd/> 
< layout type =log4net.Layout.PatternLayout> 
< conversionPattern value =％date [％thread]％-5level％logger [％property {NDC}]  - ％message％newline/> 
< / layout> 
< / appender> 
  

在这种情况下，您的所有文件都将名称如 gateway_20120427.log 。

Currently my application is using log4net to log errors, the web.config for this is as followed:

<log4net> 
    <appender name="FileAppender" type="log4net.Appender.FileAppender">
        <file value="c:/paypal/logs/gateway.log" />
        <appendToFile value="true" />
        <layout type="log4net.Layout.PatternLayout">
            <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] – %message%newline" />
        </layout>
    </appender>
    <root>
        <level value="DEBUG" />
        <appender-ref ref="FileAppender" />
    </root>
</log4net>

However, the problem with this is that everyday the logs always go to gateway.log

Does anybody know a way to have a different log file per day using log4net?

Ideally I don't want to have to manually edit the web.config every night using a scheduled task.

解决方案

You should use RollingFileAppender with rollingStyle Date and datePattern yyyyMMdd (this will roll every day).

Example of configuration:

<appender name="FileAppender" type="log4net.Appender.RollingFileAppender">
    <file value="c:/paypal/logs/gateway.log" />
    <appendToFile value="true" />
    <rollingStyle value="Date" />
    <datePattern value="yyyyMMdd" />
    <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] – %message%newline" />
    </layout>
</appender>

UPDATE: I think a better way is to include the date into file name. And use datePattern value only to show when new log file should be created.

<appender name="FileAppender" type="log4net.Appender.RollingFileAppender">
  <file type="log4net.Util.PatternString" value="c:/paypal/logs/gateway_%date{yyyyMMdd}.log" />
  <appendToFile value="true" />
  <rollingStyle value="Date" />
  <datePattern value="yyyyMMdd" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] – %message%newline" />
  </layout>
</appender>

In this case all your files will have name like gateway_20120427.log.

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