public
class DownWallpaper extends JFrame implements ActionListener{ private JButton down = null; public DownWallpaper(){ down = new JButton("下载手机壁纸"); down.setFont(new Font("微软雅黑",Font.ITALIC,20)); down.addActionListener(this); this.setResizable(false); this.add(down); this.setTitle("高清壁纸下载"); this.setSize(250, 150); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setLocationRelativeTo(null); this.setVisible(true); } @Override public void actionPerformed(ActionEvent e) { if (e.getSource()==down) { try { JOptionPane.showMessageDialog(this, "正在下载请勿关闭主窗体!"); JOptionPane.showMessageDialog(this, "详细信息请查看:https://sj.enterdesk.com/"); JOptionPane.showMessageDialog(this, "下载完成后请到:d:/img下查看"); load("https://sj.enterdesk.com/"); } catch (Exception e1) { e1.printStackTrace(); } } } public static void main(String[] args) { new DownWallpaper(); } /** * 加载链接 * @param urls * @throws Exception */ public static void load(String urls) throws Exception{ Connection connect = Jsoup.connect(urls); Document document = connect.get(); Elements links = document.getElementsByTag("img"); //循环爬取图片 for(Element link : links){ String url = link.attr("src");//下载的url String endWith = url.substring(url.lastIndexOf("."));//文件后缀名 String fileName = link.absUrl("alt").substring(link.absUrl("alt").lastIndexOf("/"));//文件名 download(url,endWith,fileName); } //获取所有的<li> Elements select = document.select("a"); Elements addClass = select.addClass("next_p"); for (Element element : addClass) { if (element.text().equals("下一页")) { //获取超链接 String attr = element.attr("href"); //递归循环下载 load(attr); }else{ continue; } } } /** * 下载图片 * @param url */ public static void download(String url,String endWith,String fileName) throws Exception{ File file = new File("d:/img/"); if (!file.exists()){ file.mkdir(); }else{ file.delete(); file.mkdir(); } URL url2 = new URL(url); InputStream is = url2.openConnection().getInputStream(); BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file.getPath()+fileName+endWith)); byte[] bs = new byte[2048*2048]; while((is.read(bs))!=-1){ bos.write(bs); } bos.flush(); if(is != null) is.close(); if(bos != null) bos.close(); } }