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Re: How to write formatted text to html file?
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Posted: Aug 7, 2002 3:34 PM
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Ok, here is what I already have (it's not very much!)
Important is method update().
My problem is that I just don't know how to insert code
after the Body-tag.
The code below creates a new BODY tag at the wrong place
(inside of <Head>).
I also tried to iterate through the document and retrieve
the Position of <Body> what also didn't work.
(Element.getStartOffset() returnd a value of 3 what I can't
apply to the HTML-file)
import javax.swing.text.html.*;
import javax.swing.text.*;
import java.net.*;
import java.io.*;
import javax.swing.JTextPane;
import javax.swing.text.html.parser.*;
public class HTMLUpdator {
//Document with new text from JTextPane
HTMLDocument textDoc;
//Document with existing Text from "guestlog.htm"
HTMLDocument doc;
JTextPane textpane;
URL base;
HTMLEditorKit kit;
public HTMLUpdator(URL base) {
//Place of "guestlog.htm"
this.base = base;
}
public void update(){
try{
//Construct a reader to load "guestlog.htm"
Reader rd = getReader(base.toString());
//Read guestlog.htm into doc;
kit.read(rd, doc,0);
System.out.println("Content of guestlog.htm: " + doc.getText(0,doc.getLength()));
System.out.println("Content of JTextPane: "+ textDoc.getText(0,textDoc.getLength()));
//Insert new text from JTextPane into doc
kit.insertHTML(doc,doc.getStartPosition().getOffset(),
"<p>" + textDoc.getText(0,textDoc.getLength()) + "</p>", 0,0,HTML.Tag.BODY);
//Write doc back to disk as "guestlog.htm"
File f = new File("guestlog.htm");
try {
FileOutputStream fstrm = new FileOutputStream(f);
kit.write(fstrm,doc,0,doc.getLength());
} catch (IOException io) {System.out.println(io.toString());};
} catch (Exception e) {
e.printStackTrace();
}
}
public void setJTextPane(JTextPane in){
this.textpane = in;
this.textDoc = (HTMLDocument)in.getDocument();
this.kit = new HTMLEditorKit();
this.doc = (HTMLDocument)kit.createDefaultDocument();
}
static Reader getReader(String uri) throws IOException {
if (uri.startsWith("http:")|| uri.startsWith("file:")) {
// Retrieve from Internet.
URLConnection conn = new URL(uri).openConnection();
return new InputStreamReader(conn.getInputStream());
} else {
// Retrieve from file.
return new FileReader(uri);
}
}
}
The Created HTML-Code looks like follows
(look at the wrong body tag inside head):
<html>
<head>
<body>
<p>
"Text from JTextPane"
</p>
</body>
<title>G?stebuch </title>
</head>
<body bgcolor="#000000" text="#FFFFCC" link="#FF9900" alink="#669933" background="_themes/artsy/arttilea.jpg" vlink="#999900">
</body>
</html>
Help is very appreciated!
Greetings,
Markus
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