I am new to consuming web services. I am trying to consume a SOAP service. This is currently in the test environment. What I have done is
Use wsdl2java to generate a wsdl that I have copied to my domain folder.
Use the API to send requests and receive responses.
What concerns me is do I need CXF or Spring WS to wire the service or is what I have sufficient. I am asking this because I have seen elsewhere like
What I don't get is where I would generate property when environments are switching from development to QA to production. And do I need to use CXF or Spring WS or are the annotated classes (#WebServiceClient sufficient) to consume the SOAP service. Basically, how to connect to different endpoints.
I apologize if this is rudimentary question. Thanks.
Spring-WS and Apache CXF are primarily useful for creating web-services. They are alternative web service implementations to the one that ships with Java6.
You can use them for writing clients, but there's not really much point, unless you're really keen on the alternative API that those provide.
The standard JAX-WS artifacts generated by wsdl2java should be perfectly sufficient for what you need.
As for your second question regarding how to target different prod/QA endpoints, you should ask a separate question for that, with full examples of what you have.
Related
I am tasked with creating a layer in Java/Spring that consumes web services from a couple different providers. These services define specific request beans but the end points do not publish XSD information.
What would be the best way to generate the artifacts required to consume these services? It seems building our own request objects is not the best way of doing things.
REST services do not offer XSD as the WSDL of a traditional SOAP service. Some REST frameworks offer WADL, or the may user Swagger.io to describe the service, or expose documentation like Spring boots actuator /docs.
If there is no such documentation, and you can't get the source code for the system you are integrating with, I recommend that you build your own set of Java POJOs so you can interface with the service in a typed manner.
I have done that for multiple systems that expose (online) documented REST services, but do not provide a set of DTO that you can use when consuming them.
In my java program, I need to call a SOAP web service that is deployed on a remote server.
Looks like there are several different approaches when explored in web.
But I would like to know as what is currently being used more in the developer world.
Also is there is a way to call a SOAP web service using Spring or axis or xfire.
Thanks in advance for your input.
For spring you can look at http://static.springsource.org/spring-ws/site/reference/html/client.html for client information.
When I write SOAP webservices I tend to use jax-ws now, especially since it comes installed with JDK6 now.
For a tutorial on that you can look at http://download.oracle.com/docs/cd/E17802_01/webservices/webservices/docs/2.0/tutorial/doc/JAXWS.html.
I like it since it uses annotations, so is simpler than using axis.
If you are using Spring then using their webservice options would be your best bet though.
I am required to build couple of Java WebServices on JBoss 5.x. One of the services will be consumed by a WPF Application. I am quite new to the world of WebServices and researching more on that. Needed to know if someone has been through the same and can share the pointers on how to achieve it.
I am reading one of the articles on JBoss Communities: http://docs.jboss.org/jbossas/jboss4guide/r2/html/ch12.html
I am not sure if web services explained here are interoperable with my WPF Client. I am planning to use WCF to consume these web services.
Can anyone share some pointers about it?
Thanks!
WCF can consume SOAP web services as well as RESTful ones. I recommend looking into JAX-RS for REST, and/or JAX-WS for SOAP. Both JAX-RS and JAX-WS are APIs that let you create web services by annotating Java code, rather than having to work with XML configuration files.
These days, SOAP is often considered over-engineered, and REST is considered leaner. There are a ton of questions comparing the two on SO.
I've been at this for a little while and my mind has gone to mush.
I'm wondering if anyone can help me out here. I'm trying to make a Java Web Service (using its own HTTP server and not something like tomcat), that supports Metro and Jersey. This way a client can connect to the web service anyway they want whether it is SOAP or REST.
I've got the metro part down so it can support Doc/Lit wsdls and RPC/lit wsdls but I've having some difficultly understanding the Jersey part so it will support REST/xml and REST/json
Also the idea is that there would be one class where all the endpoint methods are written in and other classes would extend it.
Has anyone used these two combined before? Can you point me the direction of a decent article or do you have an example yourself?
Thanks
Metro is a implementaion of JAX-WS used mainly for WSDL/SOAP based webservices.
Jesery is a implementation of JAX-RS used maily for Restful based webservices.
I have used both in the same project but for different purposes. You can also use apache httpclient for restful services, but jersery provides lot of useful annotations for converting to json, xml etc. Hope it helps.
I am a bit confused about what you mean when you say you want to support Jersey. Jersey is an implementation of JAX-RS (JSR-311). Do you mean you want to support JAX-RS?
I am new to web services. I have a requirement in my project. I have to consume the web services of our vendor in my project. All he has shared with me is a WSDL file and a document about the description of the the different operations.
Question:-
1: What do I need to do consume these web services in my java project? I have been advised to use axis2, eclipse with tomcat6.
2: Do I need to ask for some other files/information from WS vendor OR wsdl file is enough to consume these web services?
3: Do I need to write a java WS client (using axis2 plugin) or another webservice which will talk to vendor web service?
Please suggest the best possible way.
I am sorry if the question sounds like a naive..
Axis is a solid choice for such application.
You need to generate an axis client based on the provided WSDL. Then you import the generated client and use it's methods. You can see the details of this process here (read whole page or starting from the linked section): http://ws.apache.org/axis2/1_0/userguide3.html#Writing_Web_Service_Clients_using_Code_Generation_with_Data_Binding_Support
You could also need some entry-point (WebService URL).
You need to generate a client, not a webservice. See point 1.
Don't use Axis if you need ambient authentication in a Windows environment. I went down that path and ended up going with Apache CXF - which seems better to me anyhow.
You can use SOAP UI to test the web service. It'll read the WSDL, let you create requests by filling in values, and display the response that you get back. It might help you get a better understanding of what the service does before you start writing your classes.
You don't need to create a new web service in order to consume a web service, you need to write a web service client.
Similar question to this one:
Steps in creating a web service using Axis2 - The client code
All the standard web frameworks have a command (normally called wsdl2java) that will read the WSDL and then generate a java based client object.
I can recommend Axis2, but another popular choice is CXF