java将原目录下的文件复制到指定目录

package com.xm.xiong;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class TwoFile {
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		//原目录
		File file = new File("D:/ebook");
		try {
			//复制输出目录
			getFileLst(file,"D:/ee");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	/**
	*得到当前文件夹下的文件列表
	*dir :原目录
	*otherpath:复制目录
	*/
	static File globle = null;
	public static void getFileLst(File dir,String otherpath) throws IOException
	{
		if(dir.exists() && dir.isDirectory())
		{
			//如果目标目录不存在，传目标目录
			File otherpathf = new File(otherpath);
			if(!otherpathf.exists())
			{
				otherpathf.mkdirs();
			}
			
			String[] files = dir.list();
			for(int i = 0;i<files.length;i++)
			{
				globle = new File(dir.getPath()+"/"+files[i]);
				//如果是目录创建目录并递归
				if(globle.exists() && globle.isDirectory())
				{
					//创建目录
					File newdir = new File(otherpath+"/"+files[i]);
					newdir.mkdir();
					//递归
					getFileLst(globle,otherpath+"/"+files[i]);
				}
				else
				{
					//复制文件
					copy(globle,new File(otherpath+"/"+files[i]));
				}
			}
		}
	}
	
	/**
	 * 复制目录
	 * old:源文件
	 * newfile:复制文件
	 * */
	public static void copy(File old,File newfile) throws IOException{
		InputStream in = null;
		OutputStream out = null;
		try {
			in = new FileInputStream(old);
			out = new FileOutputStream(newfile);
			int len = 0;
			byte[] b = new byte[1024];
			while((len=in.read(b))>-1)
			{
				out.write(b, 0, len);
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} 
		finally
		{
			if(in!=null)
			{
				in.close();
			}
			if(out!=null)
			{
				out.close();
			}
		}
		
	}

}