当找不到用于资源过滤的属性时，如何配置Maven资源插件以抱怨？

Question

我的问题很简单：当在资源过滤过程中未找到任何属性时，我希望Maven给我一些错误消息。
我在官方Maven文档中没有发现任何线索。
那我该怎么办呢？

Answer 1

我建议深入研究可用于此类事情的maven-enforcer-plugin ：

<project>
  [...]
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-enforcer-plugin</artifactId>
        <version>1.2</version>
        <executions>
          <execution>
            <id>enforce-property</id>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <rules>
                <requireProperty>
                  <property>basedir</property>
                  <message>You must set a basedir property!</message>
                  <regex>.*\d.*</regex>
                  <regexMessage>The basedir property must contain at least one digit.</regexMessage>
                </requireProperty>
                <requireProperty>
                  <property>project.version</property>
                  <message>"Project version must be specified."</message>
                  <regex>.*(\d|-SNAPSHOT)$</regex>
                  <regexMessage>"Project version must end in a number or -SNAPSHOT."</regexMessage>
                </requireProperty>
              </rules>
              <fail>true</fail>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
  [...]
</project>