在logback.xml中有没有办法通过classpath:指定文件日志目的地,没有绝对路径?
我在我的logback.xml配置文件中这个appender:
I've in my logback.xml configuration file this appender:
<appender name="FILE"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>classpath:addressbookLog.log</file>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d{dd MMM yyyy;HH:mm:ss} %-5level %logger{36} - %msg%n
</Pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<FileNamePattern>classpath:addressbookLog.%i.log.zip</FileNamePattern>
<MinIndex>1</MinIndex>
<MaxIndex>10</MaxIndex>
</rollingPolicy>
<triggeringPolicy
class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>2MB</MaxFileSize>
</triggeringPolicy>
</appender>
因此我指定文件的路径,以相对的方式通过类路径打印日志,但它不起作用,没有创建和写入文件addressbookLog.log。
它仅适用于/home/andrea/.../resources/addressbookLog.log等绝对路径
您对如何使用classpath有任何想法吗?
so that I specify path to file in which to print logs in a relative way through classpath, but it doesn't work, no file addressbookLog.log is created and written. It only works with absolute paths like /home/andrea/.../resources/addressbookLog.log Have you any ideas on how to make it work with classpath?
第3章:Logback配置:变量替换告诉我们引用外部定义的变量的各种方法,例如系统属性
和 classpath
。
The Chapter 3: Logback configuration: Variable substitution told us the various ways to refer to the variable defined outside, e.g. system properties
and classpath
.
重要配置是创建一个包含所有变量的单独文件。我们可以在类路径上引用资源而不是文件。例如
The significant configuration is creating a separate file that will contain all the variables. We can make a reference to a resource on the class path instead of a file as well. e.g.
<configuration>
<property resource="resource1.properties" />
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<!-- Here we can refer to the variable
defined at the resource1.properties -->
<file>${USER_HOME}/myApp.log</file>
<encoder>
<pattern>%msg%n</pattern>
</encoder>
</appender>
<root level="debug">
<appender-ref ref="FILE" />
</root>
</configuration>
外部属性文件(resource1.properties)
The external properties file (resource1.properties)
USER_HOME=/path/to/somewhere
请注意, resource1.properties
是一个资源,可在类路径
中找到。
Please note that the resource1.properties
is a resource which available at the classpath
.
您可以参考第3章:Logback配置中的完整版本:变量替换。我希望这可能有所帮助。
You may refer to the full version at Chapter 3: Logback configuration: Variable substitution. I hope this may help.