使用xml而不是jaxb注释的Java Web服务工具？

Question

I have a service layer that I would like to convert into a webservice. However I hate using annotations because they severely limit code reusability in my common base classes. Some webservices use a subset of the objects, and I don't want things exposed for one service to be exposed for another.

I had the same issue with hibernate, however the hbm xml mappings allow me to share the same domain objects and have different mappings for different services, which works great. Is there any kind of rest webservice framework for java that will allow me to describe my api and scheme objects with xml, and still gain the benefits of converting these objects to json/xml etc?

Answer 1

You could describe your web services in WADL , which is XML based, then generate your code using CXF's wadl2java tool . Note that WADL is not widely adopted as of yet, so you have to decide how important it is to you, to do contract-first REST services.

Answer 2

Spring Web Services is another annotation-free framework based on XML for Web Services publishing. You should give it a try

Answer 3

Note: I'm the EclipseLink JAXB (MOXy) lead and a member of the JAXB 2 (JSR-222) expert group.

EclipseLink JAXB (MOXy) has an extension that allows you to represent the metadata as an XML file. You can leverage this metadata in a JAX-RS environment using a ContextResolver:

package blog.bindingfile.jaxrs;

import java.io.*;
import java.util.*;

import javax.ws.rs.Produces;
import javax.ws.rs.ext.*;
import javax.xml.bind.*;

import org.eclipse.persistence.jaxb.JAXBContextFactory;

import blog.bindingfile.Customer;

@Provider
@Produces({"application/xml", "application/json"})
public class CustomerContextResolver implements ContextResolver<JAXBContext> {

    private JAXBContext jc;

    public CustomerContextResolver() {
        Map<String, Object> props = new HashMap<String, Object>(1);
        props.put(JAXBContextFactory.ECLIPSELINK_OXM_XML_KEY, "blog/bindingfile/binding.xml");
        jc = JAXBContext.newInstance(new Class[] {Customer.class} , props);
    }

    public JAXBContext getContext(Class<?> clazz) {
        if(Customer.class == clazz) {
            return jc;
        }
        return null;
    }

}

For More Information

• http://blog.bdoughan.com/2011/05/specifying-eclipselink-moxy-as-your.html
• http://blog.bdoughan.com/2011/04/moxys-xml-metadata-in-jax-rs-service.html
• http://blog.bdoughan.com/2011/09/mapping-objects-to-multiple-xml-schemas.html
• http://blog.bdoughan.com/2012/02/glassfish-312-is-full-of-moxy.html

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