How to register multiple servlets in web.xml in one Spring application

Question

I want to define two servlets in my Spring web.xml - one for the application html/jsp pages, and one for a web service that will be called by an external application. Here is the web.xml:

<servlet>   <servlet-name>myservlet</servlet-name>   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>   <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>   <servlet-name>myservlet</servlet-name>   <url-pattern>*.htm</url-pattern> </servlet-mapping>  <context-param>   <param-name>contextConfigLocation</param-name>   <param-value>WEB-INF/user-service-servlet.xml</param-value> </context-param>  <servlet>   <servlet-name>user-webservice</servlet-name>   <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>   <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>   <servlet-name>user-webservice</servlet-name>   <url-pattern>/UserService/*</url-pattern> </servlet-mapping> 

If I have myservlet use the DispatcherServlet in the file by itself, it works fine. If I have the user-webservice with the context-param for it's config file (user-service-servlet.xml), it works fine. However, if I have both in the file, then the myservlet doesn't work as the myservlet-servlet.xml file isn't loaded automatically. If I remove the context-param, then the myservlet works, but the user-webservice doesn't work as it's configuration file (user-service-servlet.xml) isn't loaded.

How can I have both servlets defined and both of their configuration files loaded?

Answer 1

As explained in this thread on the cxf-user mailing list, rather than having the CXFServlet load its own spring context from user-webservice-servlet.xml, you can just load the whole lot into the root context. Rename your existing user-webservice-servlet.xml to some other name (e.g. user-webservice-beans.xml) then change your contextConfigLocation parameter to something like:

<servlet>   <servlet-name>myservlet</servlet-name>   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>   <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>   <servlet-name>myservlet</servlet-name>   <url-pattern>*.htm</url-pattern> </servlet-mapping>  <context-param>   <param-name>contextConfigLocation</param-name>   <param-value>     /WEB-INF/applicationContext.xml     /WEB-INF/user-webservice-beans.xml   </param-value> </context-param>  <servlet>   <servlet-name>user-webservice</servlet-name>   <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>   <load-on-startup>2</load-on-startup> </servlet>  <servlet-mapping>   <servlet-name>user-webservice</servlet-name>   <url-pattern>/UserService/*</url-pattern> </servlet-mapping> 

Answer 2

Use config something like this:

<context-param>   <param-name>contextConfigLocation</param-name>   <param-value>/WEB-INF/applicationContext.xml</param-value> </context-param>  <listener>   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>  <servlet>   <servlet-name>myservlet</servlet-name>   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>   <load-on-startup>1</load-on-startup> </servlet>  <servlet>   <servlet-name>user-webservice</servlet-name>   <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>   <load-on-startup>2</load-on-startup> </servlet> 

and then you'll need three files:

• applicationContext.xml;
• myservlet-servlet.xml; and
• user-webservice-servlet.xml.

The *-servlet.xml files are used automatically and each creates an application context for that servlet.

From the Spring documentation, 13.2. The DispatcherServlet:

The framework will, on initialization of a DispatcherServlet, look for a file named [servlet-name]-servlet.xml in the WEB-INF directory of your web application and create the beans defined there (overriding the definitions of any beans defined with the same name in the global scope).