Java 如何在 Maven 中读取外部属性文件
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How to read an external properties file in Maven
提问by Dougnukem
Does anyone know how to read a x.properties file in Maven. I know there are ways to use resource filtering to read a properties file and set values from that, but I want a way in my pom.xml like:
有谁知道如何在 Maven 中读取 x.properties 文件。我知道有一些方法可以使用资源过滤来读取属性文件并从中设置值，但我想在我的 pom.xml 中使用一种方法，例如：
<properties file="x.properties">
</properties>
There was some discussion about this: Maven External Properties
对此有一些讨论： Maven External Properties
采纳答案by Mike Pone
Try the Properties Maven Plugin
尝试 属性 Maven 插件
回答by Dougnukem
Using the suggested Maven properties plugin I was able to read in a buildNumber.properties file that I use to version my builds.
使用建议的 Maven 属性插件，我能够读取用于版本构建的 buildNumber.properties 文件。
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>properties-maven-plugin</artifactId>
<version>1.0-alpha-1</version>
<executions>
<execution>
<phase>initialize</phase>
<goals>
<goal>read-project-properties</goal>
</goals>
<configuration>
<files>
<file>${basedir}/../project-parent/buildNumber.properties</file>
</files>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
回答by Rich Seller
This answerto a similar question describes how to extend the properties plugin so it can use a remote descriptor for the properties file. The descriptor is basically a jar artifact containing a properties file (the properties file is included under src/main/resources).
This answerto a similar question描述了如何扩展属性插件，以便它可以使用属性文件的远程描述符。描述符基本上是一个包含属性文件的 jar 工件（属性文件包含在 src/main/resources 下）。
The descriptor is added as a dependency to the extended properties plugin so it is on the plugin's classpath. The plugin will search the classpath for the properties file, read the file''s contents into a Properties instance, and apply those properties to the project's configuration so they can be used elsewhere.
描述符被添加为扩展属性插件的依赖项，因此它位于插件的类路径中。该插件将在类路径中搜索属性文件，将文件的内容读入一个 Properties 实例，并将这些属性应用到项目的配置中，以便它们可以在其他地方使用。
