Check HTTP Image path if valid

I have a question in Java how can I check if an image http path is valid or existing?

For example:

This image is existing. http://g0.gstatic.com/ig/images/promos/homepage_home.png

But this one is not. http://sampledomain.com/images/fake.png

I would like to make a logic such that:

If(image is exi开发者_开发问答sting)
 - do this
Else
 - do others

Thanks

UPDATE: Tried it with this code that I got while googling:

import java.awt.Image;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
public class TestImage {
      public static void main(String[] arg){
          Image image = null;
          try {
              URL url = new URL("http://g0.gstatic.com/ig/images/promos/homepage_home.png");
              image = ImageIO.read(url);
          } catch (IOException e) {
              System.out.println("Error");
          }
      }
}

But I always get an error...I am not sure if this is possible.. Any other thoughts?

Make an Http Head request. If it's an existing path you'll get a response back, otherwise you'll get an error.

This does not check that it is a valid image though, just that the path exists. If you want to check whether the image is valid, I think you have got no choice other than to download it.

You can check if the image exists or not using selenium javascript executor.

Hope this code helps you -

picPath is the Url path you want to validate.

 result = (Boolean) ((JavascriptExecutor) driver).executeScript(
              "var http = new XMLHttpRequest(); http.open('HEAD',arguments[0], false); http.send();return http.status!=404;", picPath);