1、保存至服务器
根据路径保存至项目所在服务器上。
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try { // 构造URL URL url = new URL(imgUrl); // 打开连接 URLConnection con = url.openConnection(); // 输入流 InputStream is = con.getInputStream(); // 1K的数据缓冲 byte[] bs = new byte[1024]; // 读取到的数据长度 int len; // 输出的文件流 OutputStream os = new FileOutputStream("c:\\image.jpg");//保存路径 // 开始读取 while ((len = is.read(bs)) != -1) { os.write(bs, 0, len); } // 完毕，关闭所有链接 os.close(); is.close(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } |
2、保存至本地
以浏览器下载的方式保存至本地。
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String imgUrl="";//URL地址 String fileName = imgUrl.substring(imgUrl.lastIndexOf('/') + 1); BufferedInputStream is = null; BufferedOutputStream os = null; try { URL url = new URL(imgUrl); this.getServletResponse().setContentType("application/x-msdownload;"); this.getServletResponse().setHeader("Content-disposition", "attachment; filename=" + new String(fileName.getBytes("utf-8"), "ISO8859-1")); this.getServletResponse().setHeader("Content-Length", String.valueOf(url.openConnection().getContentLength())); is = new BufferedInputStream(url.openStream()); os = new BufferedOutputStream(this.getServletResponse().getOutputStream()); byte[] buff = new byte[2048]; int bytesRead; while (-1 != (bytesRead = is.read(buff, 0, buff.length))) { os.write(buff, 0, bytesRead); } if (is != null) is.close(); if (os != null) os.close(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } |
以上这篇根据URL下载图片至客户端、服务器的简单实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
