Thread: Url Image stream? Getting an Image url.

I have this code, and inside the 'saveImage()' function i explain in comments what my problem is. this code is meant to go to an image url and save that image to my desktop.

the main dilemma is I can't go directly to an image url (such as website.com/image.jpg)
I can get to a webpage that has multiple images on it, but need to single out a specific one.

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
 
public class main {
	public static void main(String[] args) throws Exception {
 
 
			String numString = "WarCraft_";
 
			String imageUrl = "http://sonsofthestorm.com/viewer.php?artist=raneman&cat=warcraft&art=1";
			String destinationFile = "C:\\Users\\Turtle\\Desktop\\image.jpg";
 
			saveImage(imageUrl, destinationFile);
 
 
	}//end main
 
 
 
		public static void saveImage(String imageUrl, String destinationFile) throws IOException {
			// somewhere around here, i need the program to look at this website url, (imageUrl)
			//  find any images that start with the words: "WarCraft_" (numString)
			 // and get that image, or set imageUrl to that image's url.			 
 
			URL url = new URL(imageUrl);
			InputStream is = url.openStream();
			OutputStream os = new FileOutputStream(destinationFile);
 
			byte[] b = new byte[2048];
			int length;
 
			while ((length = is.read(b)) != -1) {
				os.write(b, 0, length);
			}
 
			is.close();
			os.close();
 
		}
 
 
}//end class

need to single out a specific one.

Are you saying that there is an html page that loads some images and you want to scan the text of that html page and find the tag that points to one image so you can use that URL to read and save that image?
Or is your problem with the reading and saving an image when you have the URL to that image?

Please Edit your post and wrap your code with
[code=java]
<YOUR CODE HERE>
[/code]
to get highlighting and preserve formatting.

Html pages can be very complicated when they use javascript to build what is displayed in the browser. Have you tried reading the html for the page you want to scan and printed it out to see what is in it? That could help you decide how to scan the page's contents for the URLs.

There are html parsing packages that could help you.