Java Maven Build Tool: Extend and customize your build process

Maven is an extensible build tool that enables customization and expansion of the build process by creating plug-ins, extending the life cycle, using configuration files, and filtering resources. Specifically include: 1. Create a custom plug-in; 2. Extend the life cycle; 3. Use configuration files to override default behavior; 4. Perform resource filtering to modify the resource files used in the build; 5. Actual case: use custom plug-ins before compilation Perform code reviews.

Java Maven Build Tool: Extend and Customize Your Build Process

Maven is a popular Java build tool that provides a flexible and configurable Extensible way to manage your project builds. This article will guide you on how to extend and customize the Maven build process to meet your specific needs.

Extending Maven

Creating a plugin

To extend Maven, you can create your own plugin. A plugin is an XML file that contains build logic. To create a plugin:

1. Create an XML file such as my-plugin.xml.
2. Add the following content in the XML file:

<plugin>
  <groupId>com.my-company</groupId>
  <artifactId>my-plugin</artifactId>
  <version>1.0</version>
  <extensions>true</extensions>
  <executions>
    <execution>
      <id>my-execution</id>
      <phase>compile</phase>
      <goals>
        <goal>my-goal</goal>
      </goals>
    </execution>
  </executions>
</plugin>

Extend Maven's life cycle

Maven's life cycle is a predefined sequence of build phases. You can extend it by adding your own lifecycle stages. Add the following to your plugin:

<pluginManagement>
  <plugins>
    <plugin>
      <artifactId>maven-lifecycle-plugin</artifactId>
      <configuration>
        <lifecycleMappingMetadata>
          <lifecycle>
            <id>my-lifecycle</id>
            <phase>my-phase</phase>
          </lifecycle>
        </lifecycleMappingMetadata>
      </configuration>
    </plugin>
  </plugins>
</pluginManagement>

Customizing Maven

Using configuration files

Configuration files allow you to override Maven's default behavior. To create a configuration file:

1. Create an XML file such as my-config.xml.
2. Add the following content in the XML file:

<configuration>
  <my-setting>my-value</my-setting>
</configuration>

Using resource filtering

Resource filtering allows you to modify the resource files used during the build process. To use resource filtering:

1. Configure the resource filter in the pom.xml file:

<build>
  <resources>
    <resource>
      <directory>src/main/resources</directory>
      <filtering>true</filtering>
    </resource>
  </resources>
</build>

2. Use properties in the resource file ：

${my-property}

Practical case

Case: Perform code review before compilation

Using a custom plug-in, you can execute code before compilation review.

1. Create the plugin and add the following:

<goal>my-goal</goal>
  <configuration>
    <checkstyle-config>my-checkstyle-config.xml</checkstyle-config>
  </configuration>

2. Create my-checkstyle-config.xml and add your Checkstyle configuration.
3. Configure the plugin in pom.xml:

<plugins>
  <plugin>
    <groupId>com.my-company</groupId>
    <artifactId>my-plugin</artifactId>
    <version>1.0</version>
  </plugin>
</plugins>

Now, every time you run mvn compile, it will execute the code first review.

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