What does "It is not working" mean? You have to describe the symptoms for anyone to be able to offer any advice.
The blog post you cite shows an example of calling a particular SOAP web service. It won't work for any other web service without changes. The URL, SOAPAction header, and request body will all need to be correct for the service you've defined.
Creating a well-formed SOAP request by hand, as the author of that blog post does, is not trivial. This is really not a good way to create a web service client.
We could probably be more helpful if you explained what it is you're trying to accomplish.