Apache CXF with Spring - spring

Question

I am using Apache CXF with Spring , please tell me how the CXFServlet reads the myapp-ws-context.xml
<web-app>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:myapp-ws-context.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<display-name>CXF Servlet</display-name>
<servlet-name>CXFServlet</servlet-name>
<servlet-class>
org.apache.cxf.transport.servlet.CXFServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>CXFServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>

Answer 1

Have you seen sources of org.apache.cxf.transport.servlet.CXFServlet (open source)?
Everything is more than explicit:
#Override
protected void loadBus(ServletConfig sc) {
ApplicationContext wac = WebApplicationContextUtils.
getWebApplicationContext(sc.getServletContext());
String configLocation = sc.getInitParameter("config-location");
if (configLocation == null) {
try {
InputStream is = sc.getServletContext().getResourceAsStream("/WEB-INF/cxf-servlet.xml");
if (is != null && is.available() > 0) {
is.close();
configLocation = "/WEB-INF/cxf-servlet.xml";
}
} catch (Exception ex) {
//ignore
}
}
if (configLocation != null) {
wac = createSpringContext(wac, sc, configLocation);
}
if (wac != null) {
setBus(wac.getBean("cxf", Bus.class));
} else {
setBus(BusFactory.newInstance().createBus());
}
}
Note that WebApplicationContextUtils is a Spring class that tries to find an application context in servlet context attribute named: org.springframework.web.context.WebApplicationContext.ROOT.

Answer 2

Actually your classpath:myapp-ws-context.xml is read by Spring, not CXF.
By adding below configuration in your web.xml, it would be read by Spring and the context would be loaded:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:myapp-ws-context.xml</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
But you could configure your Servlet/WebApp scope of Spring objects, like multipartResolver etc., to make the objects' scopes clearly, by enhancing your CXFServlet configuration like below:
<servlet>
<display-name>CXF Servlet</display-name>
<servlet-name>CXFServlet</servlet-name>
<servlet-class>
org.apache.cxf.transport.servlet.CXFServlet
</servlet-class>
<init-param>
<param-name>config-location</param-name>
<param-value>/WEB-INF/your-webapp-scope-spring-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
*Please take note that from your web-app context, you can access all objects in the context loaded from contextConfigLocation. *