Is there any excellent tool in JAVA to deal with webservice or wsdl?
Yes. There is a standardized API (JAX-WS) that is even integrated into the Java standard API (the javax.xml.ws packages) since Java 6, and multiple implementations thereof, such as Axis and CXF.
Read about wsimport utility, which generates client-support code from the WSDL document (or URL pointing at service endpoint).
If you are using Eclipse try Eclipse Web Tools Platform Project, it's good at my point of view and sufficient for me.
For IntelliJIDEA Web Services link
If you're a Spring user, I'd recommend the Spring web service module. It makes using WSDL, creating web services, and implementing clients easy.
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I am developing a SOAP Web Service in Java with JAX-WS. I am using Eclipse Juno and Weblogic 12c. The web service is being developed in an EJB Project. I am using a top-down approach: from a WSDL that I have, I use JDK's wsimport tool (via command-line) to generate all the Java classes, I import them to the project and then I provide an implementation for the SEI.
The WSDL has a specification of a WS-Policy with a wsp:Policy tag, but the code generated from wsimport has no kind of information/annotation for this. As such, I suppose I've to write it myself.
From the search that I've made, it seems that either I've to use some Weblogic annotation or use some CXF/Axis/Metro feature. Is this true? Can't I use anything from JAX-WS? I read that CXF/Axis/Metro are all implementations of JAX-WS, but I don't have any idea if I'm using one of them, I think I am using JAX-WS reference implementation, but I don't know if this is true.
I also would like to keep an implementation independent from any application server (Weblogic, in this scenario). If I have to use CXF/Axis/Metro, how can I add their features to my EJB Project?
Firstly you can use Metro, Axis or any other third party library in your project to generate your client code. However if you want not to use third party libraries, you can generate the needed wsse headers on your own.
The followinf link described how to generate your desired headers in order to call wsse secured web services, you should just implement your own SOAPHandler :
http://www.javadb.com/using-a-message-handler-to-alter-the-soap-header-in-a-web-service-client/
Normally I go for top-bottom service creation(e.g. write wsdl, then generate a service based on it)
now I need to generate a service in a bottom-up - what would be the best tool for it?
I have an old guide which describes generation of ws using Sun Java Studio Enterprise - it does not exist anymore as I may see... so what is the substitution?
I use Apache CXF for creating and using web services. It's really easy to use and I have never had any big problems with it.
You can use Java API for XML Web Services (JAX-WS) for create Web Services. JAX-WS uses annotations to simplify the development and deployment of web service clients and endpoints. JAX-WS can be used in Java SE starting with version 6.
There is several JAX-WS implementations:
Apache Axis2/Java
Apache CXF
Metro
You can follow the JAX-WS Five Minute Tutorial of Mohammad Juma. And, why not, Deploy JAX-WS Web Services On Tomcat.
For NetBeans and Glassfish, you can see Getting Started with JAX-WS Web Services. On eclipse, you can see Step by Step tutorial to create a JAX-WS with Eclipse, CXF and Glassfish V3.
Can any one tell me how to public the wsdl file ie., that web service is created in java using eclipse.I am self learner to java/eclipse and web service too,so can any one please make me clear with steps.
Thanks for your time!...
Apache Axis has some cool tools that I frequently use - to generate a wsdl, use java2wsdl. It has a command line version, but also a Maven plugin (which I highly recommend) that will re-generate the wsdl for you automatically each time you package your web service.
What's more, the axis stuff also provides auto-generation of client stubs by which you can use your web service in consumer apps or services. Alternatively, JAX-WS tools can be used for this as well. In either case I would recommend automating the process with Maven.
If you package your wsdl with your app in this way (rather than letting a server do this for you automatically), you can be certain that your contract will look the same on any platform.
I am normally used to using JSON/REST. I have been given access to a web service with WSDL file that I need to use to read data. I have no idea where to start
What is the quickest easiest way to get JAVA code up and running that can query this web "service"?
You can use libraries like Apache AXIS or Apache CXF, which include a WSDL2Java program you can run to parse the WSDL definition file and generate classes that let you invoke the web service.
Pick your framework (popular ones include Axis2, Spring-WS, Jax-WS). 2. Use the tool that comes with your framework to create Java proxies (for example, for Axis2, you'll use wsdl2java). 3. Write code that uses the generated proxies to actually call your web service.
I recommend Sun's JAX-WS (now built-in to Java 6). Google it (I can only post one link, below).
Some links...
Main site:
jax-ws.dev.java.net/
JAX-WS is under the Glassfish Metro project, but you don't need Glassfish to use it (we don't). However this is a good resource:
metro.dev.java.net/guide/
For starting with WSDL, see specifically:
https://metro.dev.java.net/guide/Developing_client_application_with_locally_packaged_WSDL.html
Can someone point me a good step-by-step tutorial to consuming an already running web service in java?
PS: I tried creating the classes with wsconsume, but it cries with
[ERROR] rpc/encoded wsdls are not supported in JAXWS 2.0. (my web service is rpc/encoded)
If I can consume web services entirely by hand (using no wizards), and understand how is it working, then I'll be happy.
Thanks!
Update: I have found out that rpc web services are not consumed using jbossws, but jboss-jaxrpc, which implements the JAX-RPC specification. I've found a guide for JAX-RPC here, but I'm still looking for other guides that could help.
Apache CXF is the easiest way to get webservices running. Specifically look at the Simple Frontend. The simple front end uses reflection to convert the method/data types to a webservice. It doesn't get much easier than that.
CXF is pretty stable, but does not include all the WS specifications (WS-Eventing for example).
How about the JBossWS website? The details on the client side wsconsume tool are probally what you will look at first.
If you have the WSDL and XSD files, you can use the Axis web-services library to create Java classes that will interact with the services they describe. From the stand-point of this library, you are creating a client application.
You can also consume web services with Spring WS.