java - 扩展 logback 配置

Question

有没有办法将多个logback配置文件组合在一起？假设有一个包含多个项目的父项目，我希望所有项目都使用相同的基本配置或基本 logback.xml 文件，但我想为每个项目添加或更改一些内容。这能做到吗？

不太了解它，但听说可以在属性的帮助下为 log4j 完成类似的事情。

Answer 1

我认为您正在寻找文件包含功能。在一个以 <included> 为根的文件中创建通用基础功能元素，然后使用 <include> 从您的各种配置文件中包含它元素。

这在 Configuration 中通过示例进行了描述手册章节:

Joran supports including parts of a configuration file from another file. This is done by declaring a <include> element, as shown below:

Example: File include (logback-examples/src/main/resources/chapters/configuration/containingConfig.xml)

<configuration>
  <include file="src/main/java/chapters/configuration/includedConfig.xml"/>

  <root level="DEBUG">
    <appender-ref ref="includedConsole" />
  </root>

</configuration>

The target file MUST have its elements nested inside an <included> element. For example, a ConsoleAppender could be declared as:

Example: File include (logback-examples/src/main/resources/chapters/configuration/includedConfig.xml)

<included>
  <appender name="includedConsole" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>"%d - %m%n"</pattern>
    </encoder>
  </appender>
</included>

Again, please note the mandatory <included> element.

The contents to include can be referenced as a file, as a resource, or as a URL.

• As a file:To include a file use the file attribute. You can use relative paths but note that the current directory is defined by the application and is not necessarily related to the path of the configuration file.
• As a resource:To include a resource, i.e a file found on the class path, use the resource attribute.

  <include resource="includedConfig.xml"/>
  

• As a URL:To include the contents of a URL use the url attribute.

  <include url="http://some.host.com/includedConfig.xml"/>