Java jsoup获取网页中的图片

获取图片

package com.vfsd.net;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

/**
 * Servlet implementation class GetImgFromHtml
 */
@WebServlet("/GetImgFromHtml")
public class GetImgFromHtml extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public GetImgFromHtml() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        //response.getWriter().append("Served at: ").append(request.getContextPath());
        getDataHTML1();
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }
    
    public static void getDataHTML1() throws IOException{
        String aHrefStr = "http://www.xxx.com/youji/123.html";
        System.out.println(aHrefStr);
        
        String dirNameIndex = "1";
        System.out.println(dirNameIndex);
        int dataSize1 = getImg(aHrefStr,dirNameIndex);
        //int dataSize2 = getImg1(aHrefStr,dirNameIndex);
        
    }
    
    public static int getImg(String stringUrl,String dirNameParam) throws IOException {
        String agent1 = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36";
        
        Document documentRoot = Jsoup.connect(stringUrl).userAgent(agent1).get();
        
        //System.out.println(documentRoot);
        
        //Elements imgElements = documentRoot.getElementsByClass("lazy");
        Elements imgElements = documentRoot.getElementsByTag("img");
        List<String> list = new ArrayList<String>();
        
        System.out.println("==="+imgElements.size());
        int i = 0;
        for (Element imgElement : imgElements) {
            //imgElement.getElementsByClass("");
            String imgSrcStr = imgElement.attr("data-original");//获取到src的值
            String imgUrl="";
            
            String imgName = getImgNameByTime(dirNameParam);

　　　　　　　System.out.println(imgName);

　　　　} 
　　}
 
}