Unable to enable logging using CustomizableTraceInterceptor in Spring 3.0.6 - spring

Question

I have a very simple setup
I have an applicationContext.xml file like this :
<context:component-scan base-package="com.mkyong.common.controller" />
<bean id="customizableTraceInterceptor"
class="org.springframework.aop.interceptor.CustomizableTraceInterceptor">
<property name="enterMessage" value="Entering $[methodName]($[arguments])" />
<property name="exitMessage" value="Leaving $[methodName](): $[returnValue]" />
</bean>
<bean
class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
<property name="beanNames">
<list>
<value>*Service</value>
</list>
</property>
<!-- <property name="proxyTargetClass" value="true" /> -->
<property name="interceptorNames">
<list>
<value>customizableTraceInterceptor</value>
</list>
</property>
</bean>
<mvc:annotation-driven />
<bean id="wowService" class="org.daud.WowService" scope="prototype" />
</beans>
The controller class is also very simple :
#Controller
#RequestMapping("/welcome")
public class HelloController {
#Autowired
private WowService wowService;
#RequestMapping(method = RequestMethod.GET)
public String printWelcome(ModelMap model) {
getWowService().printIt();
model.addAttribute("message", "Spring 3 MVC Hello World");
return "hello";
}
public WowService getWowService() {
return wowService;
}
public void setWowService(WowService wowService) {
this.wowService = wowService;
}
}
The web.xml is :
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0" metadata-complete="true">
<display-name>simple-form</display-name>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml
</param-value>
</context-param>
<servlet>
<servlet-name>simple-form</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>simple-form</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
WowService is also very simple
public class WowService {
public String printIt() {
return "daud";
}
}
I have the spring jars of version 3.0.6, aopalliance-1.0.jar and commons-logging-1.1.1.jar in my lib folder and nothing else. But there is no trace being recorded.. i.e there is no logging being done when we enter the method of WowService, or when we leave it. I can't figure out why.

Answer 1

The following line:
new WowService().printIt();
does not create object managed by container (Spring) and definition of your bean is not taken into consideration.
The bean definition:
<bean id="wowService" class="org.daud.WowService" scope="prototype" />
looks fine, but you're not using it.
Change your controller to:
#Controller
#RequestMapping("/welcome")
public class HelloController {
#Autowired
WowService wowService;
#RequestMapping(method = RequestMethod.GET)
public String printWelcome(ModelMap model) {
wowService.printIt();
model.addAttribute("message", "Spring 3 MVC Hello World");
return "hello";
}
}