how to resolve jsoup error: unable to find valid certification path to requested target

Question

I am trying to parse the html of the following URL:

https://www.smuc.ac.kr/mbs/smuc/jsp/board/list.jsp?boardId=6993&id=smuc_040100000000

I\'m getting the

Answer 1

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This answer is outdated as JSoup has deprecated and removed the validateTLSCertificates method in version 1.12.1 (https://jsoup.org/news/release-1.12.1).

You can ignore TSL validation, set validateTLSCertificates(false):

Document document = Jsoup.connect("URL").timeout(10000).validateTLSCertificates(false).get();

Since reading the page also takes a while, increase the timeout timeout(10000).