I am just learning some about web service. But many guys still use
Java (Jws). But I wanna try ROR. There are less information about it.

I can't get install plugin in the ROR 2.0.x. So I followed the
standard textbook("Agile_Web_Development_With_Rails-2nd" and "Ruby on
Rails for PHP and Java Developers") I almost finished it. However, I
can't find my api (http://localhost:3001/hello/api : GET not
supported). Anybody can help me? Many thanks.

I wanna invoke simple web service from client(3000) to Server(3001,
web service in)

I start localserver: http://localhost:3000/helloadmin

Check out

if you are trying to get it to work on Rails 2.0