Ruby on rails ruby开放URL和rescue

我想检查一下我的旧网站上是否有一些URL的exst，并收集返回404的URL

@paintings = Painting.find(:all)
@paintings.each do |painting|
  open("http://www.mydomain.com/" + painting.user.username.downcase + "/" + painting.permalink)
   rescue OpenURI::HTTPError
     @failure += painting.permalink
   else
     @success += painting.permalink
   end
  end

嗯，我不能用那种救援方法来发现错误

syntax error, unexpected kRESCUE, expecting kEND
      rescue OpenURI::HTTPError

---

有什么想法吗？

看起来你忘记了在公开赛之前的

开始：

 begin
  open("http://www.mydomain.com/" + painting.user.username.downcase + "/" + painting.permalink)
 rescue OpenURI::HTTPError
   @failure += painting.permalink
 else
   @success += painting.permalink
 end