java 如何让 logback 读取名称为变量的属性文件？
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How do I make logback read a properties file which name is a variable?
提问by Wojtek B.
I am using http://logback.qos.ch/
I am running my java process with a parameter for example -Dproperties.url=myappproperties-production.propertiesor -Dproperties.url=myappproperties-development.propertiesdepending on the environemnt it is run in.
例如，我正在使用参数运行我的 java 进程，-Dproperties.url=myappproperties-production.properties或者-Dproperties.url=myappproperties-development.properties取决于它运行的环境。
Problem: how to make logback pick up my properties file?
问题：如何让 logback 获取我的属性文件？
If the properties file name is static I would do (works fine):
如果属性文件名是静态的，我会这样做（工作正常）：
<configuration>
<property resource="myappproperties-development.properties" />
(...)
</configuration>
But I need something that is dynamic (this does not work):
但我需要一些动态的东西（这不起作用）：
<configuration>
<property resource="${properties.url}" />
(...)
</configuration>
采纳答案by Ceki
The value of the resource file can be a property itself. In other words,
资源文件的值可以是属性本身。换句话说，
<configuration debug="true">
<property resource="${properties.url}" />
(...)
</configuration>
should work. BYW, set the debugattribute of <configuration>element to trueto see logback's internal messages on the console. Which version of logback are you using?
应该管用。BYW，将元素的debug属性设置为在控制台上查看logback的内部消息。您使用的是哪个版本的 logback？<configuration>true
回答by Damien Gallagher
How would you handle this if the properties url value was in inverted commas? e.g.
如果属性 url 值在引号中，您将如何处理？例如
-Dproperties.url="myappproperties-production.properties"
I just tried this and it didnt work
我刚试过这个，但没有用
The reason I ask is because the latest version of the Amazon AMI in Amazon Elastic Beanstalk adds inverted commas around a property value - even if a user doesnt specify this
我问的原因是因为 Amazon Elastic Beanstalk 中最新版本的 Amazon AMI 在属性值周围添加了引号 - 即使用户没有指定这个
回答by Sohail
This is the Spring recommended way:
这是Spring推荐的方式：
<configuration>
<springProfile name="local">
<!-- configuration to be enabled when the "local" profile is active -->
<property resource="application-local.properties" />
</springProfile>
<springProfile name="dev">
<!-- configuration to be enabled when the "dev" profile is active -->
<property resource="application-dev.properties" />
</springProfile>
</configuration>
Reference docs: https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-logging.html
参考文档：https: //docs.spring.io/spring-boot/docs/current/reference/html/boot-features-logging.html
