TIKA - Extracting HTML Document


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Given below is the program to extract content and metadata from an HTML document.

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

import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.html.HtmlParser;
import org.apache.tika.sax.BodyContentHandler;

import org.xml.sax.SAXException;

public class HtmlParse {

   public static void main(final String[] args) throws IOException,SAXException, TikaException {

      //detecting the file type
      BodyContentHandler handler = new BodyContentHandler();
      Metadata metadata = new Metadata();
      FileInputStream inputstream = new FileInputStream(new File("example.html"));
      ParseContext pcontext = new ParseContext();
      
      //Html parser 
      HtmlParser htmlparser = new HtmlParser();
      htmlparser.parse(inputstream, handler, metadata,pcontext);
      System.out.println("Contents of the document:" + handler.toString());
      System.out.println("Metadata of the document:");
      String[] metadataNames = metadata.names();
      
      for(String name : metadataNames) {
         System.out.println(name + ":   " + metadata.get(name));  
      }
   }
}

Save the above code as HtmlParse.java, and compile it from the command prompt by using the following commands −

javac HtmlParse.java
java HtmlParse 

Given below is the snapshot of example.txt file.

example

The HTML document has the following properties−

Document Properties1

If you execute the above program it will give you the following output.

Output

Contents of the document:

	Name	                     Salary	    age
	Ramesh Raman	             50000	    20
	Shabbir Hussein	             70000          25
	Umesh Raman	             50000	    30
	Somesh	                     50000	    35

Metadata of the document:

title:   HTML Table Header
Content-Encoding:   windows-1252
Content-Type:   text/html; charset = windows-1252
dc:title:   HTML Table Header


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