How can I access the ServletContext from within a JAX-WS web service?

Question

I want to share an object between my servlets and my webservice (JAX-WS) by storing it as a servlet context attribute. But how can I retrieve the servlet context from a web service?

Answer 1

The servlet context is made available by JAX-WS via the message context, which can be retrieved using the web service context. Inserting the following member will cause JAX-WS to inject a reference to the web service context into your web service:

@Resource
private WebServiceContext context;

Then, you can access the servlet context using:

ServletContext servletContext =
    (ServletContext) context.getMessageContext().get(MessageContext.SERVLET_CONTEXT);

Answer 2

Perfect Answer Thanks a lot

Answer 3

Saved my day.

But note, that it is accessible just after the ctor finished :(

So don't know how to figure out the applicationContext with not much boilerplate code...

Any ideas how to shorten this?

import javax.annotation.Resource;
import javax.jws.WebService;
import javax.servlet.ServletContext;
import javax.xml.ws.WebServiceContext;
import javax.xml.ws.handler.MessageContext;

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

@WebService
public class MyWebService {


    // boilerplate code begins :(

    @Resource
    private WebServiceContext context;
    private WebApplicationContext webApplicationContext = null;

    /**
     * @return
     * @throws IllegalStateException
     */
    private WebApplicationContext getWebApplicationContext()
      throws IllegalStateException {
     if (webApplicationContext != null)
      return webApplicationContext;
     ServletContext servletContext =
       (ServletContext) context.getMessageContext().get(
         MessageContext.SERVLET_CONTEXT);
     webApplicationContext =
       WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
     return webApplicationContext;
    }
}