本文实例讲述了java实现从网上下载图片到本地的方法。分享给大家供大家参考。具体如下:
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import java.io.*; import java.net.MalformedURLException; import java.net.URL; public static void writeFile(String strUrl,String fileName){ URL url = null ; try { url = new URL(strUrl); } catch (MalformedURLException e2) { e2.printStackTrace(); } InputStream is = null ; try { is = url.openStream(); } catch (IOException e1) { e1.printStackTrace(); } OutputStream os = null ; File f = new File( "d:\\webimg\\" ); f.mkdirs(); try { os = new FileOutputStream( "d:\\webimg\\" +fileName); int bytesRead = 0 ; byte [] buffer = new byte [ 8192 ]; while ((bytesRead = is.read(buffer, 0 , 8192 ))!=- 1 ){ os.write(buffer, 0 ,bytesRead); } } catch (FileNotFoundException e){ } catch (IOException e) { e.printStackTrace(); } } |
希望本文所述对大家的java程序设计有所帮助。