Logback:如何从"tomcat/bin"更改日志目录?与应用相关? [英] Logback: how to change log directory from "tomcat/bin" to application related?

问题描述

我想使用 slf4j 和 logback 进行日志记录.

I want to use slf4j with logback for logging.

您可以在下面看到我的logback.xml:

You can see my logback.xml below:

<configuration>
    <appender name="FILE-MODULE" class="ch.qos.logback.core.FileAppender">
        <file>module.log</file>
        <encoder>
            <pattern>
                %date %level [%thread] %logger{10} [%file:%line] %msg%n
            </pattern>
        </encoder>
    </appender>

    <logger name="module" level="debug" additivity="false">
        <appender-ref ref="FILE-MODULE" />
    </logger>
</configuration>

问题是:当我将应用程序部署到Tomcat时，日志文件存储在 tomcat/bin 文件夹中，而我想将其存储在myapp文件夹中( tomcat/webapp/myapp ).

The problem is: when I deploy my application to Tomcat, log file is stored in tomcat/bin folder, and I want to store it in myapp folder (tomcat/webapp/myapp).

我该怎么做?

推荐答案

好吧，我解决了我的问题，但这并不是一个很好的解决方案(以我的观点).

Well, I solved my problem but it is not very good solution (by my opinion).

首先，我将绝对路径放置到.property文件中的日志文件中.例如:

First of all I put absolute path to log file in .property file. For example:

logback.log.location=d:\Tomcat\tomcat_8.0.0-RC5\webapps\module\logs

然后我在logback.xml中使用该属性:

Then I use that property in my logback.xml:

<configuration>
    <property file="src\main\resources\system_config.properties" />
    <appender name="FILE-MODULE" class="ch.qos.logback.core.FileAppender">
        <file>${logback.log.location}\module.log</file>
        <encoder>
            <pattern>
                %date %level [%thread] %logger{10} [%file:%line] %msg%n
            </pattern>
        </encoder>
    </appender>

    <logger name="module" level="debug" additivity="false">
        <appender-ref ref="FILE-MODULE" />
    </logger>
</configuration>

更多详细信息，请参见此处.这是我使用的示例.

More details you can see here. This is an example, that I use.

但是在上面的解决方案中，我们有特定于环境的日志绝对路径.这很丑.当然，我们可以使用系统变量 CATALINA_HOME 来避免绝对路径.但是，据我所知，CATALINA_HOME可以是未定义的.或者，我们可以使用另一个Tomcat实例，而不是CATALINA_HOME中的实例.

But in solution above we have environment specific absolute path to the logs. This is ugly. Of course, we can use system variable CATALINA_HOME to avoid absolute path. But, as I know, CATALINA_HOME can be undefined. Or, we can use another instance of tomcat, that is not in CATALINA_HOME.

也许有人有更好的解决方案，并且与环境无关?

Maybe someone have more nice solution that will be environment independent?

更新

另一种解决方案:

仅在logback.xml中使用相对(到tomcat \ bin)路径而不是绝对路径:

Just use relative (to tomcat\bin) path instead absolute in logback.xml:

<configuration>
    <appender name="FILE-MODULE" class="ch.qos.logback.core.FileAppender">
        <file>..\webapps\module\module.log</file>
        <encoder>
            <pattern>
                %date %level [%thread] %logger{10} [%file:%line] %msg%n
            </pattern>
        </encoder>
    </appender>

    <logger name="module" level="debug" additivity="false">
        <appender-ref ref="FILE-MODULE" />
    </logger>
</configuration>

这是我尝试实现的第一个想法.我不知道，为什么以前不起作用.也许还有其他问题.此外，此和

It was the first idea, that I try to implement. I don't know, why it didn't work before. Maybe there were other problems. Moreover this and this articles confused me.

但是现在此解决方案可以正常工作.这正是我在寻找=)

But now this solution work fine. This is exactly that I am looking for =)

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