What is the difference between The Jsoup.parse() and Jsoup.ParseBodyFragment() in java?
Question
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
class JsoupTester {
public static void main(String[] args) {
String html = "<html><head><title>Sample Title</title></head><body><p>Sample Content</p></body></html>";
Document document = Jsoup.parse(html);
System.out.println(document.body());
Document document2 = Jsoup.parseBodyFragment(html);
System.out.println(document2.body());
}
}
What is the difference between The Jsoup.parse() and Jsoup.ParseBodyFragment() in java as both give the same output?
output:
shiv@OS:~/CodeSnippets/TrashCode$ javac JsoupTester.java
shiv@OS:~/CodeSnippets/TrashCode$ java JsoupTester
<body>
<p>Sample Content</p>
</body>
<body>
<title>Sample Title</title>
<p>Sample Content</p>
</body>
2 answers
solution1
0 2021-03-16 21:59:32
As stated by the documentation , the parse method takes a full HTML document as input and the parseBodyFragment method takes an HTML body fragment as input.
You can test differences by running JShell :
jshell --class-path jsoup-1.13.1.jar
If you use an HTML document with a <title> in the <head> :
var html = "<html><head><title>aaa</title><body>bbb</body></html>"
Calling Jsoup.parse(html) gives:
<html> <head> <title>aaa</title> </head> <body> bbb </body> </html>
and calling Jsoup.parseBodyFragment(html) gives:
<html> <head></head> <body> <title>aaa</title>bbb </body> </html>
So the main difference is that Jsoup.parseBodyFragment will always give you an empty head and Jsoup.parse is able to parse the head section.
solution2
0 2022-09-01 18:00:32
The website can be built using (as well) HTML fragments ie snippets of HTLM, that don't contain <html><body> tags.
Eg
<p id="1p">LOrem ipsum...</p>
<p id="2p">Ipsum LOrem ipsum...</p>
This is what parseBodyFragment() for: parsing HTML snippets which are not the complete HTML files.
When this method called Jsoup adds <html><body> to the beginning and </html></body> to the end of HTML fragment.
This method should not be used for full HTML documents, use parse() instead.
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