Hey,

im just a newbie in processing. Because of that i would be happy for getting help

I want to read or get the html code of a page...i want to search in this code for a picture, which i want to load in processing....

But how its possible to read or get the html code of a page.....I just want to skip the the step to use firefox and the posiibility to see the code....

in C# you can use the "WebClient" and the "DownloadString" and in processing?

Thanks

Hiya

I made a class I think can do what you want.

Code:

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class HtmlPictureReader {
	
	public HtmlPictureReader() {
	}
	
	public Document readHtmlDoc(String url) {
		try {
			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
			DocumentBuilder db = dbf.newDocumentBuilder();
			Document doc = db.parse(read("http://somesite.com/somepage.html"));
			doc.getDocumentElement().normalize();
			return doc;
		}
		catch(Exception e) {
		}
		return null;
	}
	
	public InputStream read(String filename) {
		try {
			return new FileInputStream(new File(filename));
		} 
		catch (Exception e) {
		}
		return null;
	}
	
	public ArrayList<String> getPictures(Document doc) {
		ArrayList<String> pictures = new ArrayList<String>();
		
		NodeList[] imageTags = new NodeList[3];
		
		imageTags[0] = doc.getElementsByTagName("img");
		imageTags[1] = doc.getElementsByTagName("IMG");
		imageTags[2] = doc.getElementsByTagName("Img");
		
		NamedNodeMap attributes;
		Node srcAttribute;
		
		for(int i=0;i<imageTags.length;i++) {
			for(int ii=0;i<imageTags[i].getLength();i++) {
				attributes = imageTags[i].item(ii).getAttributes();
				srcAttribute = attributes.getNamedItem("src");
				if(srcAttribute != null) {
					pictures.add(srcAttribute.getNodeValue());
				}
			}
		}
		
		return pictures;
	}
	
} 

I haven't really tested the getPictures() method. You might want to consider that an applet, without special permission, can only get files from its own domain.