爬取的是http://www.netbian.com网站的图片，要使用分类中的地址时只需要在网址后边加上"/地址"：http://www.netbian.com/weimei/
保存地址E:\DeskTop\image\background

首先创建Maven工程
引入引入入依赖

<dependency>
	<groupId>org.jsoup</groupId>
	<artifactId>jsoup</artifactId>
	<version>1.11.3</version>
</dependency>

完整代码块：

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.*;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class ImgUtil02 {
   
    private static String url = "http://www.netbian.com";
    private static String urlll = "http://www.netbian.com";
    public static void main(String[] args) {
   
        upload(url);
    }
    public static void upload(String url) {
   
        int s = 1;
        String resouce = getResource(url);
        HashMap src =(HashMap)getUrlFromCode(resouce);
        Iterator itr=src.