Lifecycle

default, clean and site

Phase

When executes

mvn compile
mvn compile
mvn compile

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Phase from validate to compile will be gone through.

Full list of phases is here.

Goal

In plugin goals are defined and are binded to phases. For example, the compile goal in maven-compiler-plugin is binded to compile phase.

The order of goal execution of plugins in the same phase is defined by entry order in the plugins section of the pom.xml file.

To list the plugin’s goals is binded to the package phase.

mvn <span>help</span>:describe <span>-Dcmd</span><span>=</span>package
mvn <span>help</span>:describe <span>-Dcmd</span><span>=</span>package
mvn help:describe -Dcmd=package

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To check goals and phases from plugin’s source code

To configure frontend-maven-plugin plugin.

<span><plugin></span>
  <span><groupId></span>com.github.eirslett<span></groupId></span>
  <span><artifactId></span>frontend-maven-plugin<span></artifactId></span>
  <span><version></span>1.15.1<span></version></span>
  <span><executions></span>
    <span><execution></span>
      <span><id></span>install-node-and-npm<span></id></span>
      <span><goals></span>
        <span><goal></span>install-node-and-npm<span></goal></span>
      <span></goals></span>
    <span></execution></span>
    <span><execution></span>
      <span><id></span>npm install<span></id></span>
      <span><goals></span>
        <span><goal></span>npm<span></goal></span>
      <span></goals></span>
    <span></execution></span>
    ..
  <span></executions></span>
<span></plugin></span>
<span><plugin></span>
  <span><groupId></span>com.github.eirslett<span></groupId></span>
  <span><artifactId></span>frontend-maven-plugin<span></artifactId></span>
  <span><version></span>1.15.1<span></version></span>
  <span><executions></span>
    <span><execution></span>
      <span><id></span>install-node-and-npm<span></id></span>
      <span><goals></span>
        <span><goal></span>install-node-and-npm<span></goal></span>
      <span></goals></span>
    <span></execution></span>
    <span><execution></span>
      <span><id></span>npm install<span></id></span>
      <span><goals></span>
        <span><goal></span>npm<span></goal></span>
      <span></goals></span>
    <span></execution></span>
    ..
  <span></executions></span>
<span></plugin></span>
<plugin>
  <groupId>com.github.eirslett</groupId>
  <artifactId>frontend-maven-plugin</artifactId>
  <version>1.15.1</version>
  <executions>
    <execution>
      <id>install-node-and-npm</id>
      <goals>
        <goal>install-node-and-npm</goal>
      </goals>
    </execution>
    <execution>
      <id>npm install</id>
      <goals>
        <goal>npm</goal>
      </goals>
    </execution>
    ..
  </executions>
</plugin>

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Following is the class of defining install-node-and-npm and npm goal. They are binded to generate-resources phase.

<span>@Mojo</span><span>(</span><span>name</span><span>=</span><span>"install-node-and-npm"</span><span>,</span> <span>defaultPhase</span> <span>=</span> <span>LifecyclePhase</span><span>.</span><span>GENERATE_RESOURCES</span><span>,</span> <span>threadSafe</span> <span>=</span> <span>true</span><span>)</span>
<span>public</span> <span>final</span> <span>class</span> <span>InstallNodeAndNpmMojo</span> <span>extends</span> <span>AbstractFrontendMojo</span> <span>{</span>
  <span>// ...</span>
<span>}</span>
<span>@Mojo</span><span>(</span><span>name</span><span>=</span><span>"npm"</span><span>,</span>  <span>defaultPhase</span> <span>=</span> <span>LifecyclePhase</span><span>.</span><span>GENERATE_RESOURCES</span><span>,</span> <span>threadSafe</span> <span>=</span> <span>true</span><span>)</span>
<span>public</span> <span>final</span> <span>class</span> <span>NpmMojo</span> <span>extends</span> <span>AbstractFrontendMojo</span> <span>{</span>
  <span>// ...</span>
<span>}</span>
<span>@Mojo</span><span>(</span><span>name</span><span>=</span><span>"install-node-and-npm"</span><span>,</span> <span>defaultPhase</span> <span>=</span> <span>LifecyclePhase</span><span>.</span><span>GENERATE_RESOURCES</span><span>,</span> <span>threadSafe</span> <span>=</span> <span>true</span><span>)</span>
<span>public</span> <span>final</span> <span>class</span> <span>InstallNodeAndNpmMojo</span> <span>extends</span> <span>AbstractFrontendMojo</span> <span>{</span>
  <span>// ...</span>
<span>}</span>

<span>@Mojo</span><span>(</span><span>name</span><span>=</span><span>"npm"</span><span>,</span>  <span>defaultPhase</span> <span>=</span> <span>LifecyclePhase</span><span>.</span><span>GENERATE_RESOURCES</span><span>,</span> <span>threadSafe</span> <span>=</span> <span>true</span><span>)</span>
<span>public</span> <span>final</span> <span>class</span> <span>NpmMojo</span> <span>extends</span> <span>AbstractFrontendMojo</span> <span>{</span>
  <span>// ...</span>
<span>}</span>
@Mojo(name="install-node-and-npm", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true)
public final class InstallNodeAndNpmMojo extends AbstractFrontendMojo {
  // ...
}

@Mojo(name="npm",  defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true)
public final class NpmMojo extends AbstractFrontendMojo {
  // ...
}

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Profile

• add/override properties
• add dependencies
• add plugin dependencies
• add pluginManagement dependencies

set default profile

<span><!-- (1) ---></span>
<span><profiles></span>
  <span><profile></span>
    <span><activation></span>
      <span><property></span>
        <span><name></span>debug<span></name></span>
      <span></property></span>
    <span></activation></span>
    ...
  <span></profile></span>
<span></profiles></span>
<span><!-- (2) ---></span>
<span><profile></span>
  <span><id></span>dev<span></id></span>
  <span><activation></span>
    <span><activeByDefault></span>true<span></activeByDefault></span>
  <span></activation></span>
  ...
<span></profile></span>
<span><!-- (1) ---></span>
<span><profiles></span>
  <span><profile></span>
    <span><activation></span>
      <span><property></span>
        <span><name></span>debug<span></name></span>
      <span></property></span>
    <span></activation></span>
    ...
  <span></profile></span>
<span></profiles></span>

<span><!-- (2) ---></span>
<span><profile></span>
  <span><id></span>dev<span></id></span>
  <span><activation></span>
    <span><activeByDefault></span>true<span></activeByDefault></span>
  <span></activation></span>
  ...
<span></profile></span>
<!-- (1) --->
<profiles>
  <profile>
    <activation>
      <property>
        <name>debug</name>
      </property>
    </activation>
    ...
  </profile>
</profiles>

<!-- (2) --->
<profile>
  <id>dev</id>
  <activation>
    <activeByDefault>true</activeByDefault>
  </activation>
  ...
</profile>

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override enabled profile

assumes profile dev is enabled by default, and to enable profile production

mvn <span>-P</span><span>=</span><span>-dev</span>,production
mvn <span>-P</span><span>=</span><span>-dev</span>,production
mvn -P=-dev,production

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原文链接：Maven notes (1)