各位大神求助，ssh+jbpm6整合

[swiftgod]

以下是报的问题，一直就报不能createProcessEngine，求各位大神帮忙解决一下！！！谢谢各位

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine' defined in class path resource [applicationContext.xml]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.jbpm.api.ProcessEngine]: Factory method 'createProcessEngine' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4792)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5256)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1421)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1411)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.jbpm.api.ProcessEngine]: Factory method 'createProcessEngine' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
... 23 more
Caused by: java.lang.NullPointerException
at org.jbpm.pvm.internal.processengine.SpringProcessEngine.create(SpringProcessEngine.java:65)
at org.jbpm.pvm.internal.cfg.ConfigurationImpl.buildProcessEngine(ConfigurationImpl.java:90)
at org.jbpm.pvm.internal.processengine.SpringHelper.createProcessEngine(SpringHelper.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)
... 24 more

[swiftgod]

以下是配置文件：
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">

<!-- 导入资源文件 -->
<context:property-placeholder location="classpath:db.properties" />
<!-- 自动扫描web包 ,将带有注解的类 纳入spring容器管理 -->

<!-- 配置C3P0数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
<property name="initialPoolSize" value="${jdbc.initialPoolSize}"></property>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property>
</bean>


<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" >
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
<!-- <property name="hibernateProperties"> -->
<!-- <props> -->
<!-- hibernate.dialect 只是Hibernate使用的数据库方言,就是要用Hibernate连接那种类型的数据库服务器。 -->
<!-- <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop> -->
<!-- 是否在后台显示Hibernate用到的SQL语句，开发时设置为true。项目部署后可以设置为false，提高运行效率 -->
<!-- <prop key="hibernate.show_sql">true</prop> -->
<!-- jdbc.batch_size是指Hibernate批量插入,删除和更新时每次操作的记录数。BatchSize越大，批量操作的向数据库发送Sql的次数越少，
速度就越快，同样耗用内存就越大-->
<!-- <prop key="hibernate.jdbc.batch_size">20</prop> -->

<!-- jdbc.fetch_size是指Hibernate每次从数据库中取出并放到JDBC的Statement中的记录条数。
FetchSize设的越大，读数据库的次数越少，速度越快，Fetch Size越小，读数据库的次数越多，速度越慢-->
<!-- <prop key="hibernate.jdbc.fetch_size">50</prop> -->
<!-- <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop> -->
<!-- <prop key="hibernate.hbm2ddl.auto">update</prop> -->
<!-- <prop key="hibernate.format_sql">true</prop> -->
<!-- <prop key="hibernate.temp.use_jdbc_metadata_defaults">false</prop> -->
<!-- </props> -->
<!-- 包级扫描 hibernate实体类 -->
<!-- </property> -->
<property name="mappingLocations">
<list>
<value>classpath:/com/cnki/domain/*.hbm.xml</value>
<!-- <value>classpath:*/jbpm.repository.hbm.xml</value> -->
<!-- <value>classpath:*/jbpm.execution.hbm.xml</value> -->
<!-- <value>classpath:*/jbpm.history.hbm.xml</value> -->
<!-- <value>classpath:*/jbpm.task.hbm.xml</value> -->
<!-- <value>classpath:*/jbpm.identity.hbm.xml</value> -->
</list>
</property>
</bean>

<!-- 配置jbpm相关 -->
<!-- 根据jpbm.cfg.xml进行配置！！！！！！！！！！！！！！！ -->
<bean id="springHelper" class="org.jbpm.pvm.internal.processengine.SpringHelper">
<property name="jbpmCfg" value="jbpm.cfg.xml"></property>
</bean>
<bean id="processEngine" factory-bean="springHelper" factory-method="createProcessEngine"/>

<!-- <bean id="jBPMUtil" class="com.cnki.util.JBPMUtil"> -->
<!-- <property name="processEngine" ref="processEngine"></property> -->
<!-- </bean> -->

<!-- <context:component-scan base-package="com.cnki.service"></context:component-scan> -->
<context:component-scan base-package="com.cnki.*"></context:component-scan>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<!-- 2.配置事务属性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="edit*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="batchUpdate" propagation="REQUIRED" />
<tx:method name="*" read-only="true" />
</tx:attributes>
</tx:advice>

<!-- 3.配置事务切入点，再把事务属性和事务切入点关联起来 -->
<aop:config>
<aop:pointcut expression="execution(* com.cnki.service.*.*(..))"
id="txPointcut" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut" />
</aop:config>
<!-- <bean id="studentService" class="com.cnki.service.StudentServiceImpl"></bean> -->
</beans>

[swiftgod]

hibernate.cfg.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!-- <!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">-->


<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<!-- <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://127.0.0.1/ssh</property>
<property name="connection.username">root</property>
<property name="connection.password">hejingyuan</property> -->

<!-- JDBC connection pool (use the built-in) -->
<!-- <property name="connection.pool_size">1</property> -->

<!-- SQL dialect -->

<property name="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<!-- <property name="current_session_context_class">thread</property> -->


<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>


<!-- Drop and re-create the database schema on startup -->
<property name="hibernate.hbm2ddl.auto">update</property>
<!-- 导入JBPM4.4的映射文件 -->
<mapping resource="jbpm.repository.hbm.xml" />
<mapping resource="jbpm.execution.hbm.xml" />
<mapping resource="jbpm.history.hbm.xml" />
<mapping resource="jbpm.task.hbm.xml" />
<mapping resource="jbpm.identity.hbm.xml" />

</session-factory>
</hibernate-configuration>

[swiftgod]

jbpm.cfg.xml:
<?xml version="1.0" encoding="UTF-8"?>

<jbpm-configuration>

<import resource="jbpm.default.cfg.xml" />
<import resource="jbpm.businesscalendar.cfg.xml" />
<import resource="jbpm.tx.spring.cfg.xml" />
<import resource="jbpm.jpdl.cfg.xml" />
<import resource="jbpm.bpmn.cfg.xml" />
<import resource="jbpm.identity.cfg.xml" />

<!-- Job executor is excluded for running the example test cases. -->
<!-- To enable timers and messages in production use, this should be included. -->
<!--
<import resource="jbpm.jobexecutor.cfg.xml" />
-->

</jbpm-configuration>