Question

I am having problem using mvc:resources in spring 3.1 configuration.

Initially i was working on the project that integrates spring 3.0, JPA, on tomcat 6.
On tomcat 6 server, i used the following servlet-mapping in web.xml to access static contents(css,js and png etc) from my application.

<servlet-mapping>
    <servlet-name>default</servlet-name>
    <url-pattern>/static/*</url-pattern>
</servlet-mapping>

I am not sure if it is best practice but it worked fine on tomcat6 environment. It doesnt work on tomcat 7. So i switched to spring 3.1 to use the mvc:resources element in applicationContext. I changed xml namespaces for 3.1 and added the two lines in applicationContext.xml.

<mvc:annotation-driven/>
<mvc:resources location="/resources/" mapping="/static/**"/>

The whole application worked very well before I added the above two lines of configuration. But now all annotated controllers are not detected by the framework. I dont have index.jsp or any welcome files in application root and I mapped root requests “/” to annotated RootController.java. So the appliation home page is not even loaded.

When i check around the net in search of the solutions, i found out that mvc:annotation-driven replaces some default bean configuration that i think is implicitly defined by the framework. I found some solutions that works for some people in this forum which is to explicitly define some bean configuration by myself.
I tried adding the following two lines

<bean class ="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/> 
<bean class ="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

But unfortunately that doesn’t solve my problem. I am not sure if it is the real problem that i am facing now ,so here is my applicationContext.xml for you to check my current configuration.

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

    <context:component-scan base-package="com.yewintko.uog.emailcampaignmanager">
        <context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation"/>
    </context:component-scan>

    <tx:annotation-driven/>
    <mvc:annotation-driven/>

    <mvc:resources location="/resources/" mapping="/static/**"/>
<bean class = "org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" /> 
<bean class = "org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>   

<context:property-placeholder location="classpath:database.properties"/>

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${database.driver}"/>
        <property name="url" value="${database.url}"/>
        <property name="username" value="${database.username}"/>
        <property name="password" value="${database.password}"/>
    </bean>

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"/>
    </bean>

    <tx:annotation-driven mode="aspectj" transaction-manager="transactionManager"/>

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="persistenceUnitName" value="EmailCampaignManager"/>
        <property name="dataSource" ref="dataSource"/>
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                <property name="databasePlatform" value="${database.platform}"/>
                <property name="showSql" value="${database.showSql}"/>
                <property name="generateDdl" value="${database.generateDdl}"/>
            </bean>
        </property>
        <property name="jpaProperties">
            <props>
                <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
            </props>
        </property>
    </bean>
</beans>

I am very new to spring and have no idea which configuration is missing in my applicationContext. Please someone help me if you have a little free time. If you need more information please let me know.

regards
Yewint

Answer 1

Your annotated controllers are not getting scanned by Spring is because of following line in your applicationContext.xml file.

<context:exclude-filter expression="org.springframework.stereotype.Controller" type="annotation"/>

Please remove that line and it will resolve your issue. Hope this helps you cheers.