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); ?????????????????} ????????????} ???????// ???} ???} ?} ?
jsoup爬取网站图片
原文地址：https://www.cnblogs.com/tk55/p/8723757.html