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This article mainly introduces Java how to get pictures of the website, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Premise

Recently, my friend visited some websites, saw good pictures and asked me if there was any way not to save a picture manually!

I said use Jsoupya!

Test the website

Open developer mode (F12) and find the link to the corresponding picture. On the Internet, each picture is a link!

First, create a new Maven project, import the Jsoup environment depends on org.jsoup jsoup 1.11.2 II, code public class JsoupTest {public static void main (String [] args) throws IOException {/ / crawler's website String url= "https://mp.weixin.qq.com/s/caU6d6ebpsLVJaf-7gMjtg"; / / get the document object Document document = Jsoup.parse (new URL (url), 10000) / / crawl the part of the code containing the image Element content = document.getElementById ("js_content"); / / get the img tag code which is a collection Elements imgs = content.getElementsByTag ("img"); / / name the id int id=0 of the image For (Element img: imgs) {/ / get the specific picture String pic = img.attr ("data-src"); URL target = new URL (pic); / / get the connection object URLConnection urlConnection = target.openConnection (); / / get the input stream to read the picture information InputStream inputStream = urlConnection.getInputStream () / / get the output stream output address + file name id++; FileOutputStream fileOutputStream = new FileOutputStream ("E:\\ JsoupPic\\" + id+ ".png"); int len=0; / / set a cache byte [] buffer = new byte [1024 * 1024] / / write the picture to E:\ JsoupPic, input the stream to read the data into the buffer, and assign it to len while ((len=inputStream.read (buffer)) > 0) {/ / Parameter 1: picture data Parameter 2: starting length Parameter 3: ending length fileOutputStream.write (buffer, 0, len) } System.out.println (id+ ".png download completed"); / / close the input and output stream and close fileOutputStream.close (); inputStream.close ();}

Results:

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