/*** 从网络Url中下载文件* @param urlStr* @param fileName* @param savePath* @throws IOException*/public static void  downLoadFromUrl(String urlStr,String fileName,String savePath) throws IOException{URL url = new URL(urlStr);  HttpURLConnection conn = (HttpURLConnection)url.openConnection();  //设置超时间为3秒conn.setConnectTimeout(3*1000);//防止屏蔽程序抓取而返回403错误conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");//得到输入流InputStream inputStream = conn.getInputStream();  //获取自己数组byte[] getData = readInputStream(inputStream);    //文件保存位置File saveDir = new File(savePath);if(!saveDir.exists()){saveDir.mkdir();}File file = new File(saveDir+File.separator+fileName);    FileOutputStream fos = new FileOutputStream(file);     fos.write(getData); if(fos!=null){fos.close();  }if(inputStream!=null){inputStream.close();}System.out.println("info:"+url+" download success"); }/*** 从输入流中获取字节数组* @param inputStream* @return* @throws IOException*/public static  byte[] readInputStream(InputStream inputStream) throws IOException {  byte[] buffer = new byte[1024];  int len = 0;  ByteArrayOutputStream bos = new ByteArrayOutputStream();  while((len = inputStream.read(buffer)) != -1) {  bos.write(buffer, 0, len);  }  bos.close();  return bos.toByteArray();  }  public static void main(String[] args) {try{downLoadFromUrl("http://101.95.48.97:8005/res/upload/interface/apptutorials/manualstypeico/6f83ce8f-0da5-49b3-bac8-fd5fc67d2725.png","百度.jpg","d:/resource/images/diaodiao/country/");}catch (Exception e) {// TODO: handle exception
        }}