java - How to avoid surrounding html head tags in Jsoup parse

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java - How to avoid surrounding html head tags in Jsoup parse

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - How to avoid surrounding html head tags in Jsoup parse

Using Jsoup i try to parse the given html content. After Jsoup.parse() the html output append html, head and body tag to the input. I just want to ignore these.

Sample Input:

<p><b>This <i>is</i></b> <i>my sentence</i> of text.</p>

Java code:

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class HTMLParse {

    public static void main(String args[]) throws IOException {
        try{
            File input = new File("/ab.html");
            String html = FileUtils.readFileToString(input, null);

            Document doc = Jsoup.parseBodyFragment(html);
            doc.outputSettings().prettyPrint(false);
            System.out.println(doc.html());
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }
}

Actual output:

<html><head></head><body><p><b>This <i>is</i></b> <i>my sentence</i> of text.</p>
    </body></html>

Expected Output:

<p><b>This <i>is</i></b> <i>my sentence</i> of text.</p>

Please help.

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1 Answer

深蓝 · Answer 1 · 2021-10-17T03:06:48+0000

The cause:

parseBodyFragment() as well as all other parse()-methods use a HTML parser by default. And those add always the HTML-Shell (<html>…</html>, <head>…</head> etc.).

The Solution:

Just don't use a HTML-parser, use a XML-parser instead ;-)

Document doc = Jsoup.parse(html, "", Parser.xmlParser());

Replace that single line and your problem is solved.

Example:

final String html = "<p><b>This <i>is</i></b> <i>my sentence</i> of text.</p>";

Document docHtml = Jsoup.parse(html);
Document docXml = Jsoup.parse(html, "", Parser.xmlParser());

System.out.println("******* HTML *******
" + docHtml);
System.out.println();
System.out.println("*******  XML *******
" + docXml);

Output:

******* HTML *******
<html>
 <head></head>
 <body>
  <p><b>This <i>is</i></b> <i>my sentence</i> of text.</p>
 </body>
</html>

*******  XML *******
<p><b>This <i>is</i></b> <i>my sentence</i> of text.</p>

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java - How to avoid surrounding html head tags in Jsoup parse

java - How to avoid surrounding html head tags in Jsoup parse

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1 Answer

The cause:

The Solution:

Example:

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