java 遍历目录下的文件

package com.bsoft.hcn.dg.gc.rs.util;

import java.io.File;
import java.util.ArrayList;
import java.util.Iterator;
import org.dom4j.Element;
import com.bsoft.hcn.dg.gc.rs.util.xmloperate.XmlConfig;


public class FileOperate {
private ArrayList nameList = new ArrayList();
private static String dirName = "D:";

public void getSubFile(String FileName) {
  File parentF = new File(FileName);
  if (!parentF.exists()) {
   System.out.println("文件或目录不存在");
   return;
  }
  if (parentF.isFile()) {
   nameList.add(parentF.getAbsoluteFile());
   return;
  }
  String[] subFiles = parentF.list();
  for (int i = 0; i < subFiles.length; i++) {
   getSubFile(dirName + "/" + subFiles[i]);
  }
}

public ArrayList getNameList() {
  return nameList;
}

public static void main(String[] args) {
  }