java - 如何从网页中抓取图像？

Question

我使用 htmlunit 从网页中抓取图像。我是 htmlunit 的初学者。我编码，但不知道如何获取图像。下面是我的代码。

import java.io.*;
import java.net.URL;
import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlPage;

public class urlscrap {

    public static void main(String[] args) throws Exception 
    {

        //WebClient webClient = new WebClient(Opera);
        WebClient webClient = new WebClient();
        HtmlPage currentPage = (HtmlPage) webClient.getPage(new URL("http://www.google.com"));

        System.out.println(currentPage.asText());
        //webClient.closeAllWindows();      

    }
}

Answer 1

这对你有用吗？

import java.net.URL;
import java.util.List;

import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlImage;
import com.gargoylesoftware.htmlunit.html.HtmlPage;

public class urlscrap {

    public static void main(String[] args) throws Exception 
    {

        //WebClient webClient = new WebClient(Opera);
        WebClient webClient = new WebClient();
        HtmlPage currentPage = (HtmlPage) webClient.getPage(new URL("http://www.google.com"));
      //get list of all divs
        final List<?> images = currentPage.getByXPath("//img");
        for (Object imageObject : images) {
            HtmlImage image = (HtmlImage) imageObject;
            System.out.println(image.getSrcAttribute());
        }
        //webClient.closeAllWindows();      
    }
}