最近在学习jbpm4.4与ssh2整合的时候老是整合不成功，搞都很烦，在此请求各位大虾帮助！！
我的ssh2框架分别是：struts2.2.3,spring 2.5,hibernate 3.3
项目整合的beans.xml(applicationContext.xml)文件如下：
<context:property-placeholder location="classpath:jdbc.properties"/>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driverClassName}"/>
<property name="url" value="${url}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
<!-- 连接池启动时的初始值 -->
<property name="initialSize" value="${initialSize}"/>
<!-- 连接池的最大值 -->
<property name="maxActive" value="${maxActive}"/>
<!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 -->
<property name="maxIdle" value="${maxIdle}"/>
<!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 -->
<property name="minIdle" value="${minIdle}"/>
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource">
<ref bean="dataSource" />
</property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mappingLocations">
<list>
<value>classpath:jbpm.execution.hbm.xml</value>
<value>classpath:jbpm.history.hbm.xml</value>
<value>classpath:jbpm.identity.hbm.xml</value>
<value>classpath:jbpm.repository.hbm.xml</value>
<value>classpath:jbpm.task.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.SQLServerDialect
</prop>
<prop key="hibernate.default_batch_fetch_size">10</prop>
<prop key="hibernate.max_fetch_depth">0</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!--jbpm4.4工作流 -->
<bean id="springHelper" class="org.jbpm.pvm.internal.processengine.SpringHelper" lazy-init="default" autowire="default" dependency-check="default">
<property name="jbpmCfg" value="spring-jbpm4.cfg.xml" />
</bean>
<bean id="processEngine" factory-bean="springHelper" factory-method="createProcessEngine" />
<bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
<bean id="executionService" factory-bean="processEngine" factory-method="getExecutionService" />
<bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
<bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">