Congrats!

Adam Ruggles wrote:
> I found the solution to this and I wanted to post it on the list.
>
> adding proxy-target-class="true" fixes it.
>
> <tx:annotation-driven transaction-manager="transactionManager"
> proxy-target-class="true" />
>
> Adam Ruggles wrote:
>> Creating a service object seems to have worked. Now I'm going to have
>> to re-think using action support. This project is not complicated
>> enough to warrant another layer.
>>
>> Thanks for your help.
>>
>> Paul Benedict wrote:
>>> Adam,
>>>
>>> I have never seen anyone attach Spring transactional logic to an
>>> action, and called DAOs straight from the action. That's not good
>>> practice, because it mashes web, business, and data layers all in one
>>> place.
>>>
>>> I wouldn't blame struts here (yet). I'd first move your code into a
>>> service object and then inject the service into the action. If there
>>> really is a problem with Struts, then the problem will persist (pun
>>> intended); but when you move them to the service layer, it will
>>> indicate whether you have mis-configured Spring or if Struts is at
>>> fault.
>>>
>>> Paul
>>>
>>> Adam Ruggles wrote:
>>>> I am following the guide here
>>>> http://cwiki.apache.org/S2WIKI/struts-2-spring-2-jpa-ajax.html
>>>>
>>>> For some reason when trying to map a method other than execute I
>>>> recieve the following error:
>>>> - Servlet.service() for servlet default threw exception
>>>> java.lang.NoSuchMethodException: $Proxy18.find()
>>>>
>>>> Below are the configuration files and a segment of the UserAction
>>>> class.
>>>>
>>>> struts.xml:
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <!DOCTYPE struts PUBLIC
>>>>  "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
>>>>  "http://struts.apache.org/dtds/struts-2.0.dtd">
>>>> <struts>
>>>>  <constant name="struts.objectFactory" value="spring" />
>>>>  <!-- <constant name="struts.devMode" value="true" /> -->
>>>>  <include file="struts-default.xml"/>
>>>>   <package name="havoc" extends="struts-default">
>>>>     <action name="list" class="userAction" method="execute">
>>>>       <result name="success">/WEB-INF/pages/list.jsp</result>
>>>>     </action>
>>>>     <action name="save" class="userAction" method="save">
>>>>       <result name="success" type="redirect">/list.action</result>
>>>>     </action>
>>>>     <action name="find" class="userAction" method="find">
>>>>       <result name="success">/WEB-INF/pages/index.jsp</result>
>>>>     </action>
>>>>  </package>
>>>> </struts>
>>>>
>>>> Application Context
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <beans default-autowire="byName"
>>>> xmlns="http://www.springframework.org/schema/beans"
>>>>     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>>     xmlns:aop="http://www.springframework.org/schema/aop"
>>>>     xmlns:tx="http://www.springframework.org/schema/tx"
>>>>    
>>>> xsi:schemaLocation="http://www.springframework.org/schema/beans
>>>> http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
>>>>          http://www.springframework.org/schema/aop
>>>> http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
>>>>          http://www.springframework.org/schema/tx
>>>> http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">
>>>>
>>>>  <bean id="propertyConfigurer"
>>>> class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
>>>> autowire="no">
>>>>     <property name="location" value="/WEB-INF/havoc.properties"/>
>>>>  </bean>
>>>>
>>>>  <bean id="config" class="com.havoc.forum.util.Config" autowire="no">
>>>>     <property name="location" value="/WEB-INF/havoc.properties"/>
>>>>  </bean>
>>>>   <bean id="dataSource"
>>>> class="org.springframework.jdbc.datasource.DriverManagerDataSource">
>>>>     <property name="driverClassName"
>>>> value="${jdbc.driverClassName}"/>
>>>>     <property name="url" value="${jdbc.url}"/>
>>>>     <property name="username" value="${jdbc.username}"/>
>>>>     <property name="password" value="${jdbc.password}"/>
>>>>  </bean>
>>>>   <bean id="sessionFactory"
>>>> class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
>>>>     <property name="dataSource" ref="dataSource"/>
>>>>     <!-- This will cause spring to return the raw SessionFactory
>>>> instead of the spring proxied one. -->
>>>>     <!-- <property name="exposeTransactionAwareSessionFactory"
>>>> value="false" /> -->
>>>>     <property name="configurationClass"
>>>> value="org.hibernate.cfg.AnnotationConfiguration"/>
>>>>      <property name="configLocation"
>>>> value="classpath:hibernate.cfg.xml"/>              <property
>>>> name="hibernateProperties">
>>>>       <props>
>>>>          <prop
>>>> key="hibernate.dialect">${hibernate.dialect}</prop>          
>>>> <prop
>>>> key="hibernate.cache.use_query_cache">${hibernate.cache.use_query_cache}</prop>
>>>>
>>>>          <prop
>>>> key="hibernate.show_sql">${hibernate.show_sql}</prop>
>>>>          <prop
>>>> key="hibernate.bytecode.use_reflection_optimizer">${hibernate.bytecode.use_reflection_optimizer}</prop>
>>>>
>>>>          <prop
>>>> key="hibernate.cache.use_second_level_cache">${hibernate.cache.use_second_level_cache}</prop>
>>>>
>>>>          <prop
>>>> key="hibernate.cache.provider_class">${hibernate.cache.provider_class}</prop>
>>>>
>>>>          <prop
>>>> key="hibernate.current_session_context_class">thread</prop>
>>>>          <prop
>>>> key="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</prop>
>>>>
>>>>       </props>
>>>>     </property>      </bean>
>>>>  <!--
>>>>     Instruct Spring to perform declarative transaction management
>>>> automatically
>>>>     on annotated classes.
>>>>  -->
>>>>  <tx:annotation-driven transaction-manager="transactionManager" />
>>>>     <!-- Transaction manager for a single Hibernate
>>>> SessionFactory (alternative to JTA) -->
>>>>   <bean id="transactionManager"
>>>> class="org.springframework.orm.hibernate3.HibernateTransactionManager">
>>>>     <property name="sessionFactory"><ref
>>>> bean="sessionFactory"/></property>
>>>>  </bean>
>>>>
>>>>  <!-- Model Objects -->
>>>>  <bean id="user" class="com.havoc.forum.model.User" />
>>>>  <bean id="group" class="com.havoc.forum.model.Group" />
>>>>  <bean id="rank" class="com.havoc.forum.model.Rank" />
>>>>
>>>>  <!-- Data Access Objects -->
>>>>  <bean id="userDAO" class="com.havoc.forum.dao.hibernate.UserDAO" />
>>>>  <bean id="groupDAO" class="com.havoc.forum.dao.hibernate.GroupDAO" />
>>>>  <bean id="rankDAO" class="com.havoc.forum.dao.hibernate.RankDAO" />
>>>>   <!-- Actions -->
>>>>  <bean id="userAction" class="com.havoc.forum.action.UserAction"
>>>> scope="prototype" />
>>>> </beans>
>>>>
>>>> UserAction
>>>>
>>>> public class UserAction extends ActionSupport {
>>>>
>>>>  ...
>>>>  ...
>>>>
>>>>  /**
>>>>   * Returns a user from the database or a new user.
>>>>   * @return SUCCESS or ERROR.
>>>>   * @throws Exception if an error occurs.
>>>>   */
>>>>   @Transactional(readOnly = true, propagation =
>>>> Propagation.REQUIRED, rollbackFor = PersistenceException.class)
>>>>  public String find() {
>>>>     if (user != null && user.getId() != null) {
>>>>       user = userDAO.find(user.getId());
>>>>       return SUCCESS;
>>>>     }
>>>>     user = new User();
>>>>     return SUCCESS;
>>>>  }
>>>>
>>>>
>>>
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>>
>>
>
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