webservice error: SOAP::HTTPStreamError

[Huy Ngo duc]

hi all,

i have learned the ROR for one month. i have a small web service
program.

my program have some file divide into some folder:
in the apis folder:
1. user_api.rb
2. feedback_api.rb
in the model folders:
3. user.rb
4. feedback.rb
5. user_service.rb
6. feedback_service.rb
in the controllers folder
7. sgs_controller

i have some problems with my service.
1. when i call my service via soap and wsdl as follow:

wsdl = 'http://localhost:3000/sgs/wsdl'
driver = SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver
# @results = driver.public_methods.sort.join('<br>')

@results = driver.getUserNameById(1)

then i get a error as image file.

2. in the sgs_controller, i was called web_service two times for user
service and feedback service as follow:
web_service :user, UserService.new
web_service :feedback, FeedbackService.new
but i can't see methods of feedback service in driver. i don't know why
???

Please help me to resolve my problems.

many thank if any reply.
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[Huy Ngo duc]

why don't have any answers for me. :( hic hic