Transfer Object via firewall

I swear I'm not lazy but one of my university project is to design a solution that can transfer object via proxy (web service) and I don't have any idea how to do it.
Now I learn WSDL structure and I will start JAX-RPC in next days,the project have 2 mode local mode and remote mode. Local mode work with RMI and is finished. Now is time for remote mode(SOAP and webservice).
I should encode object (exp. Base64) and send them to other receiver but I don't have any idea how to do it please help me in:
1)What mode of transfer I should use: RPC or Literal ?
2)How should I.... ?

<---- This is very clear question isn't it.

IN SUMMARY: I NEED SOLUTION TO TRANSFER OBJECT VIA WEBSERVICE HOW CAN I PERFORM THAT?

Start with an introductory article on WS (have a look at the WS FAQ) - most of them illustrate sending an integer or string and receiving the same back. If you can encode the object somehow in a string, like you indicate, it should be a piece of cake to adapt the example for your purposes.

Thank you ULF I will check the FAQ

I saw FAQ there were lots of Information can you please tell me which one to study.
thanks

Originally posted by Reza Rawassizadeh:
I saw FAQ there were lots of Information can you please tell me which one to study.
thanks

You can use the Apache Axis examples as a start..escp
example5.
>>1)What mode of transfer I should use: RPC or Literal ?
Literal
>>I should encode object (exp. Base64) and send them...
Why you want to encode object with base64 ???

I think to put them in soap I should encode them because I don't have info about their structure. and I just want to receive something and ....---> pass my University Lesson and get rid of it.