java刪除和拷貝文件遞歸實現方法

java刪除和拷貝文件遞歸實現方法簡單點：程序自己調用自己
實現文件的刪除和拷貝,代碼如下：
package com.viita;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class Dptest {
//刪除制定文件夾的所有文件及根文件夾
public void deleteFile(String path) {
// TODO Auto-generated method stub
File f = new File(path);
if(f.isDirectory())
{
File[] file = f.listFiles();
for (File file2 : file) {
this.deleteFile(file2.toString());
file2.delete();
}
}else
{
f.delete();
}
f.delete();
}
//拷貝整個文件夾的方法
public void copyFiles(String path1, String path2) throws Exception {
// TODO Auto-generated method stub
File file = new File(path1);
if(file.isDirectory())
{
File f = new File(path2);
if(!f.exists()) f.mkdir();
File[] files = file.listFiles();
for (File file2 : files) {
//System.out.println(file2.toString() "-----" path2 "/" file2.getName());
copyFiles(file2.toString(),path2 "/" file2.getName());
}
}else
{
copy(path1,path2);
}
}
//拷貝單個文件的方法
public void copy(String path1,String path2) throws IOException {
// TODO Auto-generated method stub
DataInputStream in = new DataInputStream(
new BufferedInputStream(
new FileInputStream(path1)));
byte[] date = new byte[in.available()];
in.read(date);
DataOutputStream out = new DataOutputStream(
new BufferedOutputStream(
new FileOutputStream(path2)));
out.write(date);
in.close();
out.close();
}
public static void main(String[] args) throws Exception {
Dptest dp = new Dptest();
dp.deleteFile("c:/wmpub");
// dp.copyFiles("c:/新建文件夾", "c:/xiao");
}
}

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