Multiple calls to controller while using SimpleUrlHandlerMapping

[samir.ware]

Hello
It was my first MVC application in which I am tring to invoke my controller. My request is mapped correctly with the controller though handleRequest gets called multile times and finally I get the exception "java.lang.OutOfMemoryError: Java heap space" .
Following are my details of configuration file (jca-mvc.xml) . (I have declared both configuration file and application specific *-servlet.xml separately)

<bean class="org.springframework.web.servlet.handler.Sim pleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/comp/**">componentController</prop>

</props>
</property>
</bean>

And my application specific file *-servlet.xml is as follows

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">


<import resource="jca-mvc.xml" />

</beans>

I have decleared handleRequest as follows
@RequestMapping(method = { RequestMethod.GET, RequestMethod.POST })
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {

and my controller is having @controller annotation.

the URL which I am hitting is
http://localhost:8080/Mvc/app1/comp/welcome.jsp

[tiger.spring]

can you post your complete web.xml and two spring config files?

[samir.ware]

Thanks for the reply sir
I got the issue with the problem mentioned above. Though I am curious to know why spring behave in this way .
The main culprit was the mapping provided in jca-mvc.xml.

<bean class="org.springframework.web.servlet.handler.Sim pleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/comp/**">componentController</prop>
</props>
</property>
</bean>

When I change the prop key to some fix URL structure it worked fine with me.
I made following change in <prop key> tag.

<prop key="/comp/*.do>componentController</prop>

And it invoked the controller only once when I hit the URL

http://localhost:8080/Mvc/app1/comp/welcome.do


Though I am curios to know what is there in the earlier mapping which was causing controller invocation multiple time ? Is it the case that controller was getting invoked for all the permutations and combinations of the URL ?

Following is the code for jca-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schem...-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">



<bean class="org.springframework.web.servlet.handler.Sim pleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/comp/**">componentController</prop>

</props>
</property>
</bean>





</beans>



and here is the code for *-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">



<import resource="jca-mvc.xml" />

</beans>


Thanks
Samir