import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
/**
* 文件以及文件夹的复制
* @author DLHC
*
*/
public class FileCopy {
/**
* 主方法
* @param args
*/
public static void main(String[] args) {
// 单个文件复制
if (copyFile("D:\\text\\1\\aaa.txt", "D:\\text\\2\\bbb.txt")) {
System.out.print("success");
} else {
System.out.print("file");
}
// 文件夹复制
if (copyFolder("D:\\text\\1", "D:\\text\\2\\aa\\")) {
System.out.print("success");
} else {
System.out.print("file");
}
}
/**
* 复制单个文件
* @param oldPath String 原文件路径 如:c:/fqf.txt
* @param newPath String 复制后路径 如:f:/fqf.txt
* @return boolean
*/
public static boolean copyFile(String oldPath, String newPath) {
try {
int byteread = 0;
InputStream is;
FileOutputStream fs;
File oldfile = new File(oldPath);
if (oldfile.exists()) { // 文件存在时
is = new FileInputStream(oldPath); // 读入原文件
fs = new FileOutputStream(newPath);
byte[] buffer = new byte[1444];
while ((byteread = is.read(buffer)) != -1) {
fs.write(buffer, 0, byteread);
}
fs.close();
is.close();
}
} catch (Exception e) {
return false;
}
return true;
}
/**
* 复制整个文件夹内容
* @param oldPath String 原文件路径 如:c:/fqf
* @param newPath String 复制后路径 如:f:/fqf/ff
* @return boolean
*/
public static boolean copyFolder(String oldPath, String newPath) {
try {
(new File(newPath)).mkdirs(); // 如果文件夹不存在 则建立新文件夹
File file = new File(oldPath);
String[] fileList = file.list();
File temp = null;
for (int i = 0; i < fileList.length; i++) {
if (oldPath.endsWith(File.separator)) { // File.separator 根据不同浏览器选择正确的路径分隔符
temp = new File(oldPath + fileList[i]);
} else {
temp = new File(oldPath + File.separator + fileList[i]);
}
if (temp.isFile()) {
FileInputStream input = new FileInputStream(temp);
FileOutputStream output = new FileOutputStream(newPath
+ "/" + (temp.getName()).toString());
byte[] b = new byte[1024 * 5];
int len;
while ((len = input.read(b)) != -1) {
output.write(b, 0, len);
}
output.flush();
output.close();
input.close();
}
if (temp.isDirectory()) {// 如果是子文件夹 进行递归操作
copyFolder(oldPath + "/" + fileList[i], newPath + "/" + fileList[i]);
}
}
} catch (Exception e) {
return false;
}
return true;
}
}