图片写入文件夹
private static void copy(File src, File dst) {try { InputStream in = null; OutputStream out = null; try {in = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE);out = new BufferedOutputStream(new FileOutputStream(dst), BUFFER_SIZE);byte[] buffer = new byte[BUFFER_SIZE];while (in.read(buffer) > 0) { out.write(buffer);} } finally {if (null != in) { in.close();}if (null != out) { out.close();} }} catch (Exception e) { e.printStackTrace();} }