[Java] Javaパッケージ内のファイルをファイルシステムにコピー

FileUtil.java

import org.apache.commons.io.IOUtils;
public static File copyResourceFile(String dir, String name, Class<?> clazz) throws IOException {
  File file = new File(dir, name);
  InputStream in = null;
  OutputStream out = null;
  try {
    in = clazz.getResourceAsStream(name);
    out = new FileOutputStream(file);
    IOUtils.copy(in, out);
  } finally {
    IOUtils.closeQuietly(in);
    IOUtils.closeQuietly(out);
  }
  return file;
}