public class DownWallpaper extends JFrame implementsActionListener{private JButton down = null;publicDownWallpaper(){
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);
}
@Overridepublic voidactionPerformed(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 voidmain(String[] args) {newDownWallpaper();
}/*** 加载链接
*@paramurls
*@throwsException*/
public static void load(String urls) throwsException{
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
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
*@paramurl*/
public static void download(String url,String endWith,String fileName) throwsException{
File file= new File("d:/img/");if (!file.exists()){
file.mkdir();
}else{
file.delete();
file.mkdir();
}
URL url2= newURL(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();
}
}
