Question

I’m trying to download an image from a url. The process I wrote works for everyone except for ONE content provider that we’re dealing with.

When I access their JPGs via Firefox, everything looks kosher (happy Passover, btw). However, when I use my process I either:

A) get a 404 or

B) in the debugger when I set a break point at the URL line (URL url = new URL(str);) then after the connection I DO get a file but it’s not a .jpg, but rather some HTML that they’re producing with generic links and stuff. I don’t see a redirect code, though! It comes back as 200.

Here’s my code…

URL url = new URL(urlString);                URLConnection uc = url.openConnection();         String val = uc.getHeaderField(0); System.out.println('FOUND OBJECT OF TYPE:' + contType); if(!val.contains('200')){                            //problem } else{     is = uc.getInputStream(); } 

Has anyone seen anything of this nature? I’m thinking maybe it’s some mime type issue, but that’s just a total guess… I’m completely stumped.

Answer 1

if(!val.contains('200')) // ... 

First of all, I would suggest you to use this useful class called HttpURLConnection, which provides the method getResponseCode()

Searching the whole data for some ‘200’ implies

1. performance issues, and
2. inconsistency (binary files can contain some ‘200’)