java将一个目录下的所有文件复制n次

本文实例为大家分享了java将一个目录下的所有文件复制n次的具体代码，供大家参考，具体内容如下

1. 文件复制示意图

2.java程序

(1).调用

final static String SOURCESTRING = "/Users/amarao/360/download/test/";
final static String OUTPUTSTRING = "/Users/amarao/360/download/test4/";
 
 public static void main(String[] args) throws IOException {
 // 将SOURCESTRING下的文件复制3次到OUTPUTSTRING目录下
 LCopyFileUtils.copyFile(SOURCESTRING, OUTPUTSTRING, 3);
 }

(2).java工具类

public class LCopyFileUtils {
 
 
 public static boolean copyFile(String srcPath, String destPath, int count) throws IOException {
 File fileSrc = new File(srcPath);
 File[] files = fileSrc.listFiles();
 if (files == null) {
 System.out.println("Error:源文件夹下没有文件");
 return false;
 }
 for (int i = 0; i < files.length; i++) {
 if (files[i].isFile()) {
 File file = null;
 String fileName = files[i].getName();
 
 String filePrefix = fileName.substring(0, fileName.lastIndexOf("."));
 String fileSuffix = fileName.substring(fileName.lastIndexOf("."));
 
 // 每个文件复制Count次
 for (int j = 0; j < count; j++) {
  file = new File(destPath + File.separator + filePrefix + "_" + i + "_" + j + fileSuffix);// 创建文件
  copyFileUsingFileChannels(files[i], file);
 }
 }
 }
 return true;
 }
 
 
 public static void copyFileUsingFileChannels(File srcFile, File destFile) throws IOException {
 FileChannel inputChannel = null;
 FileChannel outputChannel = null;
 try {
 inputChannel = new FileInputStream(srcFile).getChannel();
 outputChannel = new FileOutputStream(destFile).getChannel();
 outputChannel.transferFrom(inputChannel, 0, inputChannel.size());
 System.out.println("复制文件成功：" + srcFile.getName() + " -> " + destFile.getName());
 } catch (Exception e) {
 System.out.println("Error:复制文件失败：" + srcFile.getName() + " -> " + destFile.getName());
 } finally {
 if (inputChannel != null) {
 inputChannel.close();
 }
 if (outputChannel != null) {
 outputChannel.close();
 }
 }
 }
 
}

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