文件的操作

文件的复制粘贴：

            File file=new File("C:\\Users\\eyoo\\Downloads\\photo.png");
            //不写文件名会报文件拒绝访问错误
            File file1=new File("C:\\Users\\eyoo\\测试.png");
            InputStream inputStream=new FileInputStream(file);
            OutputStream outputStream =new FileOutputStream(file1);
            byte[] bytes=new byte[1024];
            int len=0;
            while ((len=inputStream.read(bytes))!=-1){
                outputStream.write(bytes);
            }
            outputStream.flush();
            outputStream.close();
            inputStream.close();

文件重命名

 File file=new File("C:\\Users\\eyoo\\Downloads\\测试.png");
            File file1=new File("C:\\Users\\eyoo\\Downloads\\重命名.png");
            file.renameTo(file1);