Rails open-uri breaking on path

问题

I'm trying to get a url using open-uri.

my code is outrageously simple

   url = open("http://localhost:3000/descriptions")

   return render :text => url.to_json

When I run this code, I get a timeout error.

When I request just "http://localhost:3000", I get my home page (which is correct). So it seems this is breaking on the path somewhere. I've tried using net-http with uri (not sure if that would make a difference) and I still have the same issue. I want to get a path and a query, but I can't seem to get that to work.

回答1:

Of course: I guess you're using the default webrick server which is only able to handle one request at a time:

• one is consumed by your controller's action

• one is consumed by your open call

Two solutions:

• replace webrick in dev with thin or unicorn or whatever

• launch two servers with webrick: rails s & rails s -p 3001. One on port 3000, another on port 3001

来源：https://stackoverflow.com/questions/7099331/rails-open-uri-breaking-on-path