本文整理了Java中org.apache.maven.shared.utils.io.FileUtils.extension()方法的一些代码示例，展示了FileUtils.extension()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。FileUtils.extension()方法的具体详情如下：
包路径：org.apache.maven.shared.utils.io.FileUtils
类名称：FileUtils
方法名：extension

FileUtils.extension介绍

[英]Returns the extension portion of a file specification string. This everything after the last dot '.' in the filename (NOT including the dot).
[中]返回文件规范字符串的扩展名部分。这是最后一点之后的所有内容。”在文件名中（不包括点）。

代码示例

代码示例来源：origin: org.apache.maven.shared/maven-shared-utils

/**
 * Get extension from filename.
 * ie
 * <pre>
 * foo.txt    --> "txt"
 * a\b\c.jpg --> "jpg"
 * a\b\c     --> ""
 * </pre>
 *
 * @param filename the path of the file
 * @return the extension of filename or "" if none
 */
@Nonnull public static String getExtension( @Nonnull final String filename )
{
  return extension( filename );
}

代码示例来源：origin: org.apache.maven.shared/maven-shared-utils

/**
 * Checks to see if a file is of a particular type(s).
 * Note that if the file does not have an extension, an empty string
 * ("") is matched for.
 */
private static boolean isValidFile( @Nonnull String file, @Nonnull String... extensions )
{
  String extension = extension( file );
  // ok.. now that we have the "extension" go through the current know
  // excepted extensions and determine if this one is OK.
  for ( String extension1 : extensions )
  {
    if ( extension1.equals( extension ) )
    {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: org.apache.maven.shared/maven-script-interpreter

/**
 * Determines the script interpreter for the specified script file by looking at its file extension. In this
 * context, file extensions are considered case-insensitive. For backward compatibility with plugin versions 1.2-,
 * the BeanShell interpreter will be used for any unrecognized extension.
 *
 * @param scriptFile The script file for which to determine an interpreter, must not be <code>null</code>.
 * @return The script interpreter for the file, never <code>null</code>.
 */
private ScriptInterpreter getInterpreter( File scriptFile )
{
  String ext = FileUtils.extension( scriptFile.getName() ).toLowerCase( Locale.ENGLISH );
  ScriptInterpreter interpreter = scriptInterpreters.get( ext );
  if ( interpreter == null )
  {
    interpreter = scriptInterpreters.get( "bsh" );
  }
  return interpreter;
}

代码示例来源：origin: org.apache.maven.shared/maven-shared-utils

/**
 * Remove extension from filename.
 * ie
 * <pre>
 * foo.txt    --> foo
 * a\b\c.jpg --> a\b\c
 * a\b\c     --> a\b\c
 * </pre>
 *
 * @param filename the path of the file
 * @return the filename minus extension
 */
@Nonnull public static String removeExtension( @Nonnull final String filename )
{
  String ext = extension( filename );
  if ( "".equals( ext ) )
  {
    return filename;
  }
  final int index = filename.lastIndexOf( ext ) - 1;
  return filename.substring( 0, index );
}

代码示例来源：origin: org.apache.maven.shared/maven-script-interpreter

+ FileUtils.extension( scriptFile.getAbsolutePath() ) );

代码示例来源：origin: org.apache.maven.shared/maven-filtering

/** {@inheritDoc} */
public boolean filteredFileExtension( String fileName, List<String> userNonFilteredFileExtensions )
{
  List<String> nonFilteredFileExtensions = new ArrayList<String>( getDefaultNonFilteredFileExtensions() );
  if ( userNonFilteredFileExtensions != null )
  {
    nonFilteredFileExtensions.addAll( userNonFilteredFileExtensions );
  }
  boolean filteredFileExtension =
    !nonFilteredFileExtensions.contains( StringUtils.lowerCase( FileUtils.extension( fileName ) ) );
  if ( getLogger().isDebugEnabled() )
  {
    getLogger().debug( "file " + fileName + " has a" + ( filteredFileExtension ? " " : " non " )
      + "filtered file extension" );
  }
  return filteredFileExtension;
}