文件复制

public static void copyFile(String oldPath, String newPath) throws IOException {        FileInputStream in = null;        FileOutputStream out = null;        try {            File oldFile = new File(oldPath);            File file = new File(newPath);            in = new FileInputStream(oldFile);            out = new FileOutputStream(file);;                        byte[] buffer=new byte[1024];            int n=0;            while((n=in.read(buffer))!=-1){                out.write(buffer,0,n);            }        } finally {            if(null!=out) {                out.close();            }            if(null!=in) {                in.close();            }        }    }

 

文件夹复制

public static void copyDir(String oldPath, String newPath) throws IOException {        File oldFile = new File(oldPath);        File[] listFiles = oldFile.listFiles();                File newFile = new File(newPath);        if (!newFile.exists()) {            newFile.mkdir();        }                for (File file : listFiles) {            if (file.isDirectory()) {                copyDir(file.getPath(), newPath.concat(File.separator).concat(file.getName()));            }                        if (file.isFile()) {                copyFile(file.getPath(), newPath.concat(File.separator).concat(file.getName()));            }        }    }