如何使用properties-maven-plugin? [英] How to use properties-maven-plugin?

问题描述

我想使用properties-maven-plugin.我阅读了用法 http://mojohaus.org/properties-maven-plugin/usage.html ，但对我不起作用.

I'd like to use properties-maven-plugin. I read the usage http://mojohaus.org/properties-maven-plugin/usage.html , but it's not working for me.

我创建了一个非常简单的项目来对其进行测试.这是我的pom.xml:

I created a very simple project to test it. Here is my pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>test</groupId>
  <artifactId>MavenTest</artifactId>
  <version>1.0.0</version>
  <name>MavenTest</name>

  <properties>
    <prop1>2.2</prop1>
  </properties>

  <dependencies>
    <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>${log4j.version}</version>
        </dependency>
  </dependencies>

  <build>
    <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>properties-maven-plugin</artifactId>
                <version>1.0-alpha-2</version>
                <executions>
                    <execution>
                        <phase>initialize</phase>
                        <goals>
                            <goal>read-project-properties</goal>
                        </goals>
                        <configuration>
                            <files>
                                <file>${basedir}/my.properties</file>
                            </files>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    <pluginManagement>
        <plugins>
            <!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
            <plugin>
                <groupId>org.eclipse.m2e</groupId>
                <artifactId>lifecycle-mapping</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <lifecycleMappingMetadata>
                        <pluginExecutions>
                            <pluginExecution>
                                <pluginExecutionFilter>
                                    <groupId>
                                        org.codehaus.mojo
                                    </groupId>
                                    <artifactId>
                                        properties-maven-plugin
                                    </artifactId>
                                    <versionRange>
                                        [1.0-alpha-2,)
                                    </versionRange>
                                    <goals>
                                        <goal>
                                            read-project-properties
                                        </goal>
                                    </goals>
                                </pluginExecutionFilter>
                                <action>
                                    <ignore></ignore>
                                </action>
                            </pluginExecution>
                        </pluginExecutions>
                    </lifecycleMappingMetadata>
                </configuration>
            </plugin>
        </plugins>
    </pluginManagement>
  </build>
</project>

如果我运行mvn compile或mvn install，结果为:

If I run mvn compile, or mvn install the result is:

[ERROR] The build could not read 1 project -> [Help 1]
org.apache.maven.project.ProjectBuildingException: Some problems were encountered while processing the POMs:
[ERROR] 'dependencies.dependency.version' for org.apache.logging.log4j:log4j-api:jar must be a valid version but is   '${log4j.version}'. @ line 16, column 13

"my.properties"文件包含以下内容:

The "my.properties" file contains this:

 log4j.version=2.2    

如此处所述: mojohaus

如果我使用pom.xml中定义的prop1属性，则一切正常.

If I use the prop1 property, which is defined in the pom.xml, everything is working.

那我做错了什么?

推荐答案

他们的官方回答是，不支持使用read-project-properties设置依赖项的版本: https://github.com/mojohaus/properties-maven-plugin/issues/26

Official answer from them is that using read-project-properties for setting version of dependencies is not supported: https://github.com/mojohaus/properties-maven-plugin/issues/26

这行不通，也不是属性maven插件的目的，而且从文件中读取属性以定义依赖项版本的好处是什么?

This does not work nor is it the intention of properties maven plugin and furthermore what would be the advantage to read properties from a file to define versions of dependencies?

关于此问题的答案有一个非常透彻的解释: https://stackoverflow.com/a/14727072/1707491

There is a very through explanation about this issue on this answer: https://stackoverflow.com/a/14727072/1707491

这篇关于如何使用properties-maven-plugin?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！