package com.ij34.JsoupTest;import java.io.File;  import java.io.FileOutputStream;  import java.io.InputStream;  import java.net.HttpURLConnection;import java.net.URL;  import java.net.URLEncoder;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Random;import org.jsoup.Jsoup;  import org.jsoup.nodes.Document;  import org.jsoup.nodes.Element;  import org.jsoup.select.Elements;   public class JsoupTest {          public static void downImages(String filePath,String imgUrl) throws Exception {                    //获取网址        String beforeUrl = imgUrl.substring(0,imgUrl.lastIndexOf("/")+1);          //图片url后面的图片名字        String fileName = imgUrl.substring(imgUrl.lastIndexOf("/")+1);          String newFileName = URLEncoder.encode(fileName, "UTF-8");          //"+"替换为UTF-8中的空格          newFileName = newFileName.replaceAll("\\+", "\\%20");          //编码之后的url          imgUrl = beforeUrl + newFileName;           //创建文件目录              File files = new File(filePath);              if (!files.exists()) {                  files.mkdirs();              }              URL url = new URL(imgUrl);              HttpURLConnection connection = (HttpURLConnection)url.openConnection();              InputStream is = connection.getInputStream();              Date day=new Date();                SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");             Random ra=new Random();            int Num=ra.nextInt(11)+100;            String fn=df.format(day)+Num;             //去图片的格式例如.jpg .jpeg            int lastIndex=fileName.lastIndexOf(".");            String result=fileName.substring(lastIndex);            File file = new File(filePath +fn+ result);              FileOutputStream out = new FileOutputStream(file);              int i = 0;              while((i = is.read()) != -1){                  out.write(i);              }                   }            public static void main(String[] args) throws Exception {          //int[] a=new int[]{};          //for(int i=a.length-1;i>=0;i--){          //爬取的网址              String url = "http://www.ivsky.com/tupian/laohu_v45527";//+a[i];            String savePath = "D://webmagic//";              Document document = Jsoup.connect(url).get();              Elements elements = document.getElementsByTag("img");              for(Element element : elements){                  //图片的绝对路径                  String imgSrc = element.attr("abs:src");                  //取jpg格式                if(imgSrc.contains(".jpg")){                downImages(savePath, imgSrc);                  System.out.println(url+":"+imgSrc);                  }             }        //    }    }  }