错误提示 maven-enforcer-plugin is ignored by m2e 原因及处理办法

转载链接：http://*.com/questions/13040788/how-to-elimate-the-maven-enforcer-plugin-goal-enforce-is-ignored-by-m2e-wa

The eclipse maven plugin runs a projects pom.xml file in order figure out how the maven project is configured and translate the maven pom.xml configuration into an eclipse configuration. A pom.xml can reference an arbitrary number of maven plugins and each of those plugins has the potential to leak memory, or do things that are harmful to eclipse. So by default the m2e eclipse plugin ignores any maven plugins unless those maven plugins have a special m2e plugin connector that tells m2e how to integrate the maven plugin into eclipse. In summary m2e is defending the eclipse JVM process against a buggy maven plugin, by saying that for every maven plugin there needs to be an m2e connector to bridge between maven and eclipse.

So to get rid of the warning I added the following to my plugin management section of the parent pom.xml

<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<versionRange>[1.0.0,)</versionRange>
<goals>
<goal>enforce</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>

It seems that org.eclipse.m2e:lifecycle-mappingis a maven plugin designed to hold meta data to communicate with eclipse m2e plugin when it processes a maven pom.xml and this information is used to tell eclipse what do with maven plugins that are defined in pom.xml when eclipse runs the pom.xml as part of the eclipse UI.

转载链接：http://blog.csdn.net/tylanbin/article/details/19559091

警告状况描述：
    父项目使用插件maven-enforcer-plugin，所有子项目中<parent>标签处均会提示maven-enforcer-plugin (goal "enforce") is ignored by m2e警告信息。
    父项目pom.xml

<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<version>1.0</version>
<executions>
<execution>
<id>enforce-maven</id>
<goals>
<goal>enforce</goal>
</goals>
<configuration>
<rules>
<requireMavenVersion>
<version>(,2.1.0),(2.1.0,2.2.0),(2.2.0,)</version>
<message>Maven 2.1.0 and 2.2.0 produce incorrect GPG signatures and checksums respectively.</message>
</requireMavenVersion>
</rules>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>

警告引发原因：
    MyEclipse/Eclipse使用的m2e插件，所以会忽略没有与m2e插件关联的maven插件，从而造成警告信息。

警告解决方法：
    为父项目加入lifecycle-mapping插件即可。

<build>
<pre><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.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<versionRange>[1.0.0,)</versionRange>
<goals>
<goal>enforce</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>