java文件流转文件

**public static void getFile(String url, String destFileName) {
    String result = null;
    HttpClient httpClient = null;
    try {
        httpClient = new SSLClient();
        HttpGet httpGet = new HttpGet(url);
        httpGet.setHeader("111", "111");
        httpGet.setHeader("111", "111");
        HttpResponse response = httpClient.execute(httpGet);
        HttpEntity entity = response.getEntity();
        InputStream in = entity.getContent();
        File file = new File(destFileName);
        try {
            FileOutputStream fout = new FileOutputStream(file);
            int l = -1;
            byte[] tmp = new byte[1024];
            while ((l = in.read(tmp)) != -1) {
                fout.write(tmp, 0, l);
                // 注意这里如果用OutputStream.write(buff)的话，图片会失真，大家可以试试
            }
            fout.flush();
            fout.close();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 关闭低层流。
            in.close();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}**