Maven：可以覆盖已经为父POM中的配置文件定义的插件的配置 [英] Maven : Is it possible to override the configuration of a plugin already defined for a profile in a parent POM

问题描述

在我的项目的POM父文件中，我有这样的配置文件定义一些配置对这个项目有用（所以我不能摆脱这个父POM）：

 < profile> 
< id> wls7< / id> 
 ... 
< build> 
< plugins> 
<！ -  use java 1.4  - > 
< plugin> 
< groupId> org.apache.maven.plugins< / groupId> 
< artifactId> maven-compiler-plugin< / artifactId> 
< configuration> 
< fork> true< / fork> 
< source> 1.4< / source> 
< target> 1.4< / target> 
< meminitial> 128m< / meminitial> 
< maxmem> 1024m< / maxmem> 
< executable>％$ {jdk14.executable}< / executable> 
< / configuration> 
< / plugin> 
< / plugins> 
< / build> 
 
 ... 
< / profile> 
  

但在我的项目中，我只是想重写maven-编译器插件的配置使用jdk5而不是jdk4来编译测试类。

这就是为什么我在我的项目的POM中做了这个部分：

 < profiles> 
< profile> 
< id> wls7< / id> 
< activation> 
< property> 
< name> jdk< / name> 
< value> 4< / value> 
< / property> 
< / activation> 
< build> 
< directory> target-1.4< / directory> 
< plugins> 
< plugin> 
< groupId> org.apache.maven.plugins< / groupId> 
< artifactId> maven-compiler-plugin< / artifactId> 
< executions> 
< execution> 
< id> my-testCompile< / id> 
< phase> test-compile< / phase> 
< goals> 
< goal> testCompile< / goal> 
< / goal> 
< configuration> 
< fork> true< / fork> 
< executable> $ {jdk15.executable}< / executable> 
< compilerVersion> 1.5< / compilerVersion> 
< source> 1.5< / source> 
< target> 1.5< / target> 
< verbose> true< / verbose> 
< / configuration> 
< / execution> 
< / executions> 
< / plugin> 
< / plugins> 
< / build> 
< / profile> 
 ... 
< / profiles> 
  

且无效...

我甚至试图覆盖我的POM的常规插件部分的配置（我的意思，不是一个特定的配置文件，但对于我的整个POM）。

• 我不要想要摆脱父
  POM和配置文件（wls7）定义
  里面（因为我需要许多和许多
  属性，配置...）和
  


• 基于重复
  的解决方案，父POM和/或其中定义的配置文件
  不是一个好
  一。因为如果负责人
  
  的父POM改变了东西，我
  
  必须在我的报告。

这只是一个继承的事情（扩展或覆盖配置文件，从上级POM的配置）所以我认为应该可以用maven2。

解决方案

通过将 combine.self =override属性添加到父pom中可覆盖配置

尝试将插件配置更改为：

 < ; plugin> 
< groupId> org.apache.maven.plugins< / groupId> 
< artifactId> maven-compiler-plugin< / artifactId> 
< executions> 
< execution> 
< id> my-testCompile< / id> 
< phase> test-compile< / phase> 
< goals> 
< goal> testCompile< / goal> 
< / goal> 
< configuration combine.self =override> 
< fork> true< / fork> 
< executable> $ {jdk15.executable}< / executable> 
< compilerVersion> 1.5< / compilerVersion> 
< source> 1.5< / source> 
< target> 1.5< / target> 
< verbose> true< / verbose> 
< / configuration> 
< / execution> 
< / executions> 
< / plugin> 
  

有关覆盖插件的详细信息，请参阅： http://maven.apache.org/pom.html

In a POM parent file of my project, I have such a profile defining some configurations useful for this project (so that I can't get rid of this parent POM) :

<profile>
<id>wls7</id>
...
<build>
  <plugins>
    <!-- use java 1.4 -->
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-compiler-plugin</artifactId>
      <configuration>
        <fork>true</fork>
        <source>1.4</source>
        <target>1.4</target>
        <meminitial>128m</meminitial>
        <maxmem>1024m</maxmem>
        <executable>%${jdk14.executable}</executable>
      </configuration>
    </plugin>
  </plugins>
</build>

...
</profile>

But in my project I just would like to override the configuration of the maven-compiler-plugin in order to use jdk5 instead of jdk4 for compiling test-classes.

That's why I did this section in the POM of my project :

<profiles>
  <profile>
    <id>wls7</id>
        <activation>
            <property>
                <name>jdk</name>
                <value>4</value>
            </property>
        </activation>
    <build>
      <directory>target-1.4</directory>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <executions>
            <execution>
              <id>my-testCompile</id>
              <phase>test-compile</phase>
              <goals>
                <goal>testCompile</goal>
              </goals>
              <configuration>
                <fork>true</fork>
                <executable>${jdk15.executable}</executable>
                <compilerVersion>1.5</compilerVersion>
                <source>1.5</source>
                <target>1.5</target>
                <verbose>true</verbose>
              </configuration>
            </execution>
          </executions>
        </plugin>
      </plugins>
    </build>
  </profile>
              ...
</profiles>

and it's not working ...

I even tried to override the configuration in regular plugin sections of my POM (I mean, not for a specific profile but for my whole POM).

What could be the problem ?

To clarify some of my requirements :

• I don't want to get rid of the parent POM and the profile (wls7) defined inside it (since I need many and many properties, configurations, ...) and that is not the process in my company.
• A solution based on duplicating the parent POM and/or the profile defined inside it is not a good one. Since if the responsible of
  the parent POM change something, I
  would have to report it in mine.

It's just an inheritance matter (extend or override a profile, a configuration from an upper-level POM) so I think it should be possible with maven2.

解决方案

Overriding configurations from a parent pom can be done by adding the combine.self="override" attribute to the element in your pom.

Try changing your plugin configuration to:

    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-compiler-plugin</artifactId>
      <executions>
        <execution>
          <id>my-testCompile</id>
          <phase>test-compile</phase>
          <goals>
            <goal>testCompile</goal>
          </goals>
          <configuration combine.self="override">
            <fork>true</fork>
            <executable>${jdk15.executable}</executable>
            <compilerVersion>1.5</compilerVersion>
            <source>1.5</source>
            <target>1.5</target>
            <verbose>true</verbose>
          </configuration>
        </execution>
      </executions>
    </plugin>

For more information on overriding plugins, see: http://maven.apache.org/pom.html

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