maven - Maven, how to disable by profiling the copying of one resource by the war plugin?

Question

Inside a maven project with some resources configured like this :

<webResources>
    ....
    <resource>
        <directory>${project.build.directory}/${temp.dir}</directory>
    </resource>
</webResources>

the ${temp.dir} is generated conditionally by a plugin and do not exists always. When it is not there maven of course fail with an NPE, how could I fix this ?

Answer 1

我不确定我是否理解您的问题（确切地），但在我看来 Maven 配置文件可以帮助您：

http://maven.apache.org/guides/introduction/introduction-to-profiles.html

在您的情况下，您可能需要在属性存在时激活配置文件，如下所示：

<profiles>
  <profile>
    <activation>
      <property>
        <name>temp.dir</name>
      </property>
    </activation>
    ...
  </profile>
</profiles>