There are 2 entries for a Servlet Filter, one in web.xml and one in Spring applicationContext.xml
I added the filter into applicationContext.xml because I wanted to inject creditProcessor bean into it.
The only problem is that the entry in web.xml got picked up by JBoss and then used, so creditProcessor is null.
Do I have to use Spring’s delegatingFilterProxy or similar so I can inject stuffs into the bean, or can I tweak the web.xml?
<filter> <filter-name>CreditFilter</filter-name> <filter-class>credit.filter.CreditFilter</filter-class> </filter> <filter-mapping> <filter-name>CreditFilter</filter-name> <url-pattern>/coverage/*</url-pattern> </filter-mapping>
<bean id="creditFilter" class="credit.filter.CreditFilter" > <property name="creditProcessor" ref="creditProcessor"/> </bean>
You can’t make a Filter spring managed like this. With your setup it is instantiated once by spring, and once by the servlet container. Instead, use
- declare the filter proxy as a
targetBeanNameinit-param of the filter definition to specify the bean that should actually handle the filtering:
<init-param> <param-name>targetBeanName</param-name> <param-value>creditFilter</param-value> </init-param>