将 “E:/练习用” 中的文件复制到 “com.idea_primary” 文件夹下。
public class CopyFolderDemo {
//复制单级文件夹
public static void main(String[] args) throws IOException {
File srcFolder = new File("E:\\练习用");
String srcFolderName = srcFolder.getName();
File destFolder = new File("com.idea_primary", srcFolderName);
if (!srcFolder.exists()) {
srcFolder.mkdir();
}
File[] listFiles = srcFolder.listFiles();
for (File srcFile : listFiles) {
String srcFileName = srcFile.getName();
File file2 = new File(destFolder, srcFileName);
copyFile(srcFile, file2);
}
}
private static void copyFile(File srcFile, File file2) throws IOException {
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(srcFile));
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file2));
byte[] b = new byte[1024];
int len;
while ((len = bis.read(b)) != -1) {
bos.write(b, 0, len);
}
bos.close();
bis.close();
}
}
public class CopyFoldersDemo {
public static void main(String[] args) throws IOException {
//复制多级文件
File srcFile = new File("E:\\练习用");
File destFile = new File("com.idea_primary\\");
copyFolder(srcFile, destFile);
}
private static void copyFolder(File srcFile, File destFile) throws IOException {
if (srcFile.isDirectory()) {
String srcFileName = srcFile.getName();
File newFoler = new File(destFile, srcFileName);
if (!newFoler.exists()) {
newFoler.mkdir();
}
File[] fileArray = srcFile.listFiles();
for (File file : fileArray) {
copyFolder(file, newFoler);
}
} else {
File newFile = new File(destFile,srcFile.getName());
copyFile(srcFile,newFile);
}
}
private static void copyFile(File srcFile, File destFile) throws IOException {
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(srcFile));
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(destFile));
byte[] b = new byte[1024];
int len;
while ((len = bis.read(b)) != -1) {
bos.write(b, 0, len);
}
bos.close();
bis.close();
}
}