java拷貝指定文件夾下的指定文件類型

例如：把C:\Windows\SysWOW64下的所有dll文件拷貝到C:\Users\Administrator\Desktop\64dll這個目錄

package com.xiaostudy.copyFile;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Scanner;

public class CopyFile {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("請輸入復制的文件夾路徑：");
        String inFiles = scanner.next();//String inFile = "C:\\Windows\\SysWOW64";
        System.out.print("請輸入拷貝到的文件夾路徑：");
        String outFiles = scanner.next();//String outFile = "C:\\Users\\Administrator\\Desktop\\64dll";
        System.out.print("請輸入要復制文件類型，比如說txt文件，就輸入：txt\r\n請輸入：");
        String type = scanner.next();
        
        FileInputStream fis = null;
        FileOutputStream fos = null;
        try {
            File outFiled = new File(outFiles);
            if (!outFiled.exists()) {
                outFiled.mkdirs();
            }

            File files = new File(inFiles);

            if (files.exists()) {
                File[] listFiles = files.listFiles();
                if (listFiles != null && listFiles.length > 0) {
                    for (File file : listFiles) {
                        String fileName = file.getName();
                        String[] str = fileName.split("\\.");
                        if (str[str.length-1].equals(type)) {
                            fis = new FileInputStream(file);
                            fos = new FileOutputStream(new File(outFiled, fileName));
                            byte[] buf = new byte[1024];
                            int bytesRead;
                            while ((bytesRead = fis.read(buf)) > 0) {
                                fos.write(buf, 0, bytesRead);

                            }
                        }
                    }
                }

            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {//關閉資源
            if(fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if(fis != null) {
                try {
                    fis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

}

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