插件的参数可以接受多于一个的值。看一下Example 17.7, “一个带有多值参数的插件”中的ZipMojo。参数includes和excludes都是多值的String数组，它们为一个创建ZIP文件的组件指定了包含和排除模式。
Example 17.7. 一个带有多值参数的插件
package org.sonatype.mavenbook.plugins
/**
* Zips up the output directory.
* @goal zip
* @phase package
*/
public class ZipMojo extends AbstractMojo
{
/**
* The Zip archiver.
* @parameter expression="${component.org.codehaus.plexus.archiver.Archiver#zip}"
*/
private ZipArchiver zipArchiver;
/**
* Directory containing the build files.
* @parameter expression="/data/hudson-temporal-data/hudson-orchestrator-home/workspace/Book-To-Production/content-zh/target"
*/
private File buildDirectory;
/**
* Base directory of the project.
* @parameter expression="/data/hudson-temporal-data/hudson-orchestrator-home/workspace/Book-To-Production/content-zh"
*/
private File baseDirectory;
/**
* A set of file patterns to include in the zip.
* @parameter alias="includes"
*/
private String[] mIncludes;
/**
* A set of file patterns to exclude from the zip.
* @parameter alias="excludes"
*/
private String[] mExcludes;
public void setExcludes( String[] excludes ) { mExcludes = excludes; }
public void setIncludes( String[] includes ) { mIncludes = includes; }
public void execute()
throws MojoExecutionException
{
try {
zipArchiver.addDirectory( buildDirectory, includes, excludes );
zipArchiver.setDestFile( new File( baseDirectory, "output.zip" ) );
zipArchiver.createArchive();
} catch( Exception e ) {
throw new MojoExecutionException( "Could not zip", e );
}
}
}
要配置一个多值的Mojo参数，你应该为这类参数使用一组元素。如果这个多值参数的名称是includes，你就可以使用一个includes元素，它包含一组include子元素。如果这个多值参数的名称是excludes，你就应该使用带有exclude子元素的excludes元素。要配置ZipMojo使其忽略所有以.txt及波浪号结尾的文件，你可以使用如下的插件配置。
<project>
...
<build>
<plugins>
<plugin>
<groupId>org.sonatype.mavenbook.plugins</groupId>
<artifactId>zip-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>**/*.txt</exclude>
<exclude>**/*~</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
