| 标题 | Java读取网上静态文件资源 |
| 范文 | Java读取网上静态文件资源，具体代码如下： public class ResourceLoader { private static final int BUFFER_SIZE = 1024; public void loadResourceIntoFile(String urlStr, String file) throws IOException { URL url = null; URLConnection con = null; InputStream in = null; FileOutputStream out = null; try { url = new URL(urlStr); con = url.openConnection(); File targetFile = new File(file); long curLength = targetFile.length(); if (curLength > 0) con.setRequestProperty("RANGE", "bytes=" + curLength); con.connect(); long totalLength = con.getHeaderFieldLong("Content-Length", 0); System.out.println("total length:" + totalLength); in = con.getInputStream(); out = new FileOutputStream(targetFile, true); if (totalLength > 0) { int len; byte[] buffer = new byte[BUFFER_SIZE]; while ((len = in.read(buffer)) != -1) { out.write(buffer); } } out.flush(); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { out.close(); in.close(); } } } |
| 随便看 |
|
在线学习网范文大全提供好词好句、学习总结、工作总结、演讲稿等写作素材及范文模板，是学习及工作的有利工具。