Originally posted by Unnsse Khan:
1. What is the difference between Axis and JWSDP?
They are different implementations of the
Java Web services technologies.
They both have to deal with XML,
SOAP, and WSDL and implement/use the JAXP, JAX-RPC and SAAJ APIs.
The JWSDP (Sun) also deals with UDDI and the JAXR API (
jUDDI and
UDDI4J are the open source versions.)
JWSDP can support Java Service Endpoints (JSE) and
EJB Endpoints, as far as I know Axis (Apache) focuses on JSE.
JWSDP works best with Sun's
Java System Application Server Platform Edition 8.1 but can be used with other Application servers; Axis can run with a simple
Servlet container like
Tomcat or
Jetty but will also work with other application servers.
Many people find Axis easier to use than JWSDP.
2. Does one require the other?
No.
3. What is the best way to learn web services (good tutorials, URLs, or books)?
Many people are looking for this and there isn't a good answer. If you going the JWSDP route, use
Designing Web Services with the J2EE 1.4 Platform: JAX-RPC, SOAP, and XML Technologies for the high level and do the J2EE tutorials for the low level like:
Building Web Services with JAX-RPC A Web Service Example: HelloServiceBean You may also want to download the
Adventure Builder reference application and poke around in it.
If you are going the Axis route follow Ulf Dittmer's recommendations in
Starting problem (you may want to read those articles in any case).
[ November 10, 2005: Message edited by: Peer Reynders ]