AOP not working !!!

[Vassili]

Hi,

I'm trying to do a simple AOP example, but it's not working, I'm having problems in my XML configuration file and here's the my XML file:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans
PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schem...-beans-2.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">

<bean id = "singerAspect" class = "vassili.SingerAspect"/>

<aop:config>
<aop:aspect ref = "singerAspect">
<aopointcut id = "singerPointcut"
expression = "execution(* *.sing(..)) and target(bean)"/>

<aop:before method = "beforeSinging" pointcut-ref = "singerPointcut" arg-names = "bean"/>
<aop:after-returning method = "afterSinging" pointcut-ref = "singerPointcut" arg-names = "bean"/>
</aop:aspect>
</aop:config>

</bean>

Is there something wrong with the XML file ?

Please i need help ...

Thanks in advance ...

[Mike Bingham]

A couple of issues:

1. Your XML config file contains both DTD and XML schema declarations. Remove the following:

<!DOCTYPE beans
PUBLIC "-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">

2. Your config file should be terminated with

</beans>

instead of

</bean>

[Vassili]

I did but it did not work, it's saying:

Document root element "beans", must match DOCTYPE root "null"

!!!

What is the problem ?

[Mike Bingham]

Are you using Spring 2.0+? You would see this error if you tried to use XML Schema-based configuration with Spring 1.2.9 or earlier. Configuration tags such as <aop:*> are only available with XML Schema-based configuration in Spring 2.0+.