Java by API/javax.swing.text.html/HTMLEditorKit

extends HTMLEditorKit

   <source lang="java">
    

import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.util.Enumeration; import javax.swing.text.AttributeSet; import javax.swing.text.MutableAttributeSet; import javax.swing.text.html.HTML; import javax.swing.text.html.HTMLEditorKit; public class Main {

 public static void main(String[] args) throws Exception {
   ParserGetter kit = new ParserGetter();
   HTMLEditorKit.Parser parser = kit.getParser();
   HTMLEditorKit.ParserCallback callback = new ReportAttributes();
   URL u = new URL("http://www.jexp.ru");
   InputStream in = u.openStream();
   InputStreamReader r = new InputStreamReader(in);
   parser.parse(r, callback, false);
 }

} class ReportAttributes extends HTMLEditorKit.ParserCallback {

 public void handleStartTag(HTML.Tag tag, MutableAttributeSet attributes, int position) {
   this.listAttributes(attributes);
 }
 private void listAttributes(AttributeSet attributes) {
   Enumeration e = attributes.getAttributeNames();
   while (e.hasMoreElements()) {
     Object name = e.nextElement();
     Object value = attributes.getAttribute(name);
     if (!attributes.containsAttribute(name.toString(), value)) {
       System.out.println("containsAttribute() fails");
     }
     if (!attributes.isDefined(name.toString())) {
       System.out.println("isDefined() fails");
     }
     System.out.println(name + "=" + value);
   }
 }
 public void handleSimpleTag(HTML.Tag tag, MutableAttributeSet attributes, int position) {
   this.listAttributes(attributes);
 }

} class ParserGetter extends HTMLEditorKit {

 public HTMLEditorKit.Parser getParser() {
   return super.getParser();
 }

}

 </source>
   
  
 
  

extends HTMLEditorKit.ParserCallback

   <source lang="java">
    

import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.util.Enumeration; import javax.swing.text.AttributeSet; import javax.swing.text.MutableAttributeSet; import javax.swing.text.html.HTML; import javax.swing.text.html.HTMLEditorKit; public class Main {

 public static void main(String[] args) throws Exception {
   ParserGetter kit = new ParserGetter();
   HTMLEditorKit.Parser parser = kit.getParser();
   HTMLEditorKit.ParserCallback callback = new ReportAttributes();
   URL u = new URL("http://www.jexp.ru");
   InputStream in = u.openStream();
   InputStreamReader r = new InputStreamReader(in);
   parser.parse(r, callback, false);
 }

} class ReportAttributes extends HTMLEditorKit.ParserCallback {

 public void handleStartTag(HTML.Tag tag, MutableAttributeSet attributes, int position) {
   this.listAttributes(attributes);
 }
 private void listAttributes(AttributeSet attributes) {
   Enumeration e = attributes.getAttributeNames();
   while (e.hasMoreElements()) {
     Object name = e.nextElement();
     Object value = attributes.getAttribute(name);
     if (!attributes.containsAttribute(name.toString(), value)) {
       System.out.println("containsAttribute() fails");
     }
     if (!attributes.isDefined(name.toString())) {
       System.out.println("isDefined() fails");
     }
     System.out.println(name + "=" + value);
   }
 }
 public void handleSimpleTag(HTML.Tag tag, MutableAttributeSet attributes, int position) {
   this.listAttributes(attributes);
 }

} class ParserGetter extends HTMLEditorKit {

 public HTMLEditorKit.Parser getParser() {
   return super.getParser();
 }

}

 </source>
   
  
 
  

HTMLEditorKit: createDefaultDocument()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import javax.swing.text.AttributeSet; import javax.swing.text.Element; import javax.swing.text.ElementIterator; import javax.swing.text.StyleConstants; import javax.swing.text.html.HTML; import javax.swing.text.html.HTMLDocument; import javax.swing.text.html.HTMLEditorKit; import javax.swing.text.html.parser.ParserDelegator; public class MainClass {

 public static void main(String args[]) throws Exception {
   URL url = new URL("http://www.jexp.ru");
   URLConnection connection = url.openConnection();
   InputStream is = connection.getInputStream();
   InputStreamReader isr = new InputStreamReader(is);
   BufferedReader br = new BufferedReader(isr);
   HTMLEditorKit htmlKit = new HTMLEditorKit();
   HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
   HTMLEditorKit.Parser parser = new ParserDelegator();
   HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
   parser.parse(br, callback, true);
   ElementIterator iterator = new ElementIterator(htmlDoc);
   Element element;
   while ((element = iterator.next()) != null) {
     AttributeSet attributes = element.getAttributes();
     Object name = attributes.getAttribute(StyleConstants.NameAttribute);
     if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1)) {
       StringBuffer text = new StringBuffer();
       int count = element.getElementCount();
       for (int i = 0; i < count; i++) {
         Element child = element.getElement(i);
         AttributeSet childAttributes = child.getAttributes();
         if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
           int startOffset = child.getStartOffset();
           int endOffset = child.getEndOffset();
           int length = endOffset - startOffset;
           text.append(htmlDoc.getText(startOffset, length));
         }
       }
       System.out.println(name + ": " + text.toString());
     }
   }
 }

}

 </source>
   
  
 
  

HTMLEditorKit.Parser: parse(Reader r, ParserCallback cb, boolean i)

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import javax.swing.text.AttributeSet; import javax.swing.text.Element; import javax.swing.text.ElementIterator; import javax.swing.text.StyleConstants; import javax.swing.text.html.HTML; import javax.swing.text.html.HTMLDocument; import javax.swing.text.html.HTMLEditorKit; import javax.swing.text.html.parser.ParserDelegator; public class MainClass {

 public static void main(String args[]) throws Exception {
   URL url = new URL("http://www.jexp.ru");
   URLConnection connection = url.openConnection();
   InputStream is = connection.getInputStream();
   InputStreamReader isr = new InputStreamReader(is);
   BufferedReader br = new BufferedReader(isr);
   HTMLEditorKit htmlKit = new HTMLEditorKit();
   HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
   HTMLEditorKit.Parser parser = new ParserDelegator();
   HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
   parser.parse(br, callback, true);
   ElementIterator iterator = new ElementIterator(htmlDoc);
   Element element;
   while ((element = iterator.next()) != null) {
     AttributeSet attributes = element.getAttributes();
     Object name = attributes.getAttribute(StyleConstants.NameAttribute);
     if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1)) {
       StringBuffer text = new StringBuffer();
       int count = element.getElementCount();
       for (int i = 0; i < count; i++) {
         Element child = element.getElement(i);
         AttributeSet childAttributes = child.getAttributes();
         if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
           int startOffset = child.getStartOffset();
           int endOffset = child.getEndOffset();
           int length = endOffset - startOffset;
           text.append(htmlDoc.getText(startOffset, length));
         }
       }
       System.out.println(name + ": " + text.toString());
     }
   }
 }

}

 </source>
   
  
 
  

new HTMLEditorKit()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import javax.swing.text.AttributeSet; import javax.swing.text.Element; import javax.swing.text.ElementIterator; import javax.swing.text.StyleConstants; import javax.swing.text.html.HTML; import javax.swing.text.html.HTMLDocument; import javax.swing.text.html.HTMLEditorKit; import javax.swing.text.html.parser.ParserDelegator; public class MainClass {

 public static void main(String args[]) throws Exception {
   URL url = new URL("http://www.jexp.ru");
   URLConnection connection = url.openConnection();
   InputStream is = connection.getInputStream();
   InputStreamReader isr = new InputStreamReader(is);
   BufferedReader br = new BufferedReader(isr);
   HTMLEditorKit htmlKit = new HTMLEditorKit();
   HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
   HTMLEditorKit.Parser parser = new ParserDelegator();
   HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
   parser.parse(br, callback, true);
   ElementIterator iterator = new ElementIterator(htmlDoc);
   Element element;
   while ((element = iterator.next()) != null) {
     AttributeSet attributes = element.getAttributes();
     Object name = attributes.getAttribute(StyleConstants.NameAttribute);
     if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1)) {
       StringBuffer text = new StringBuffer();
       int count = element.getElementCount();
       for (int i = 0; i < count; i++) {
         Element child = element.getElement(i);
         AttributeSet childAttributes = child.getAttributes();
         if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
           int startOffset = child.getStartOffset();
           int endOffset = child.getEndOffset();
           int length = endOffset - startOffset;
           text.append(htmlDoc.getText(startOffset, length));
         }
       }
       System.out.println(name + ": " + text.toString());
     }
   }
 }

}

 </source>