we used to Jersey (https://jersey.java.net/)as an implementation of JAX-RS. Now, we use native JAX-RS WebSphere 8.5.
Is there a way to automatically get WADL of the JAX-RS application?
Related
Where is the difference between a JAX-RS Client implementation like Apache CXF and the MicroProfile Rest Client?
The different clients implement different standards. The JAX-RS Client is implemented according to JSR 370 https://www.jcp.org/en/jsr/detail?id=370 while the other one implements the MicroProfile specification http://microprofile.io/project/eclipse/microprofile-rest-client.
I am using IBM JAX-RS implementation to develop my REST APIs. I am looking to include validation of resource method parameters using Bean Validation (annotations) support provided in JAX-RS 2.0. I know that Jersey implementation supports this feature (https://jersey.java.net/documentation/latest/bean-validation.html). Is there a similar support available with IBM JAX-RS implementation on WAS 8.5.5? If so could you please direct me to some tutorial on how to accomplish this?
I am specifically looking into enabling and configuring Bean Validation support along with its integration with IBM JAX-RS.
Yes, WebSphere (both traditional and Liberty) will support bean validation with JAX-RS. But I am not aware of any tutorials. The code in the Jersey document that you referenced will work with WebSphere's JAX-RS/BV implementation.
To enable JAX-RS and Bean Validation in Liberty, your server.xml must contain the following features:
<featureManager>
<feature>jaxrs-2.0</feature>
<feature>beanValidation-1.1</feature>
</featureManager>
As an alternative, you could include some feature that includes those features (like webProfile-7.0 or javaee-7.0, but that may get you more function than you want).
Then, if you have your application packaged as an EAR or WAR file, you can copy it into your server's dropins directory, start the server and you should be able to run the example (the default HTTP port is 9080).
This link provides additional information about developing and deploying JAX-RS applications in WebSphere Liberty:
http://www.ibm.com/support/knowledgecenter/was_beta_liberty/com.ibm.websphere.wlp.nd.multiplatform.doc/ae/twlp_dep_jaxrs.html
Hope this helps,
Andy
G'Day mates,
I want to use Dropwizard to access my business logic which is encapsulated in EJB layer hosted on Glassfish.
From Dropwizard website, Dropwizard uses Jetty as a built-in application server. Which as far as I know is not EJB compatible.
How can I build a webservice layer that can consume my business layer and at the same time I can utilize the run any where .jar services?
Regards,
Consuming an EJB web service does not require to use EJB. Its just SOAP over HTTP, so you can do it with a simple HTTP client application.
Normally you would generate proxy code from the wsdl to use with JAVA, check out apache cxf or the jaxws-maven-plugin.
If I create a web service using JAX-RS (on netbeans), it is essentially an API to the web service?
The web service would be REST or SOAP based.
I realize that the API provides the interface to the web service's functions, but does JAX-RS expose the interface?
Actually, include the library for JAX-RS depends of the Application Server. If you use a application server in netbeans which is Java EE6 Certified, you don't need any additional libraries.
However, if you use netbeans and also Tomcat o a Java EE 5 server, netbeans automatically add the JAX-RS libraries, in this case, the reference implementation.
The user can also choose to do it by hand.
Read more:
Getting Started with RESTful Web Services
Developing RESTful Web Services with JAX-RS, Netbeans, Glassfish
My friend asked to explain me what's the difference between Spring, axis2 and Jersey. Here I listed down a few differences that I'm aware of. Please comment/respond if you know more differences
Spring webservices:
A java web application with a servlet configured in
web.xml(org.springframework.ws.transport.http.MessageDispatcherServlet).
You can use spring annotated POJOs for creating web services
Supports both RESTful and SOAP based web services.
Since it’s a web application you can use http authentication mechanisms
for enabling security
Axis2:
The webservice application is a .aar file that will be deployed in
axis2.war
Use AXIOM for using non-primitive type arguments to web service calls
You can use JSR181 annotations to create webservices
You can use spring-dependency injection using axis2 extensions.
Supports both RESTful and SOAP based web services.
I guess you have to use ws-security implementation for
providing security
to your web services>
They claim hot deployment of webservices works but I haven’t seen
it working.
Jersey:
A regular web application with a servlet configured in web.xml.
Write custom message readers/writers for using
non-primitive type arguments to web
service calls
Since it’s a web application you can use http authentication mechanisms
for enabling security
Supports only RESTful implementation of web services
I have seen hot deployment working may be because it’s a web application
and the container can do hot
deployment
I'm not familiar with Jersey and Axis, but I can tell you something about Spring-WS.
You cannot use Spring-WS for restful webservices. Spring-WS is intended to be used for contract first webservices. You can however use the features of Spring 3.x and Spring-MVC for REST services.
As for authorization, you can easily wire in any sort of security (with Spring-Security for instance).
I'm a big fan of the 'automatic' (de) marshalling features of Spring-WS. Just annotate your methods with the correct types and it'll know what to do.