我正在使用 Maven 组装插件。我从 mvn 命令到程序集描述中获取一个名为 env 的参数。基于此，程序集决定使用哪些配置进行分发。有什么方法可以强制执行此参数，以便如果用户不传递此参数，则构建将失败？
最佳答案
使用 Enforcer plugin's required property rule 怎么样？ ？
您可以添加:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<version>3.0.0-M1</version>
<executions>
<execution>
<id>enforce-property</id>
<goals>
<goal>enforce</goal>
</goals>
<configuration>
<rules>
<requireProperty>
<property>env</property>
<message>You must set an env property!</message>
<regex>^(?!\s*$).+</regex>
<regexMessage>Env property validation failed</regexMessage>
</requireProperty>
</rules>
<fail>true</fail>
</configuration>
</execution>
</executions>
</plugin>
这需要设置 -Denv，并且至少等于一个非空格字符:
mvn clean verify
...
[WARNING] Rule 0: org.apache.maven.plugins.enforcer.RequireProperty failed with message:
You must set an env property!
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.557 s
[INFO] Finished at: 2017-11-27T19:30:06-05:00
[INFO] Final Memory: 10M/309M
[INFO] ------------------------------------------------------------------------
mvn clean verify -Denv=test
...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.965 s
[INFO] Finished at: 2017-11-27T19:30:59-05:00
[INFO] Final Memory: 27M/309M
[INFO] ------------------------------------------------------------------------
关于java - 如何使 Maven Assembly Plugin 中的参数成为必需，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47521506/