no org.jbpm.pvm.internal.tx.SpringTransaction in current environment

JBPM4集成SSH时，错误提示为：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine' defined in class path resource [applicationContext.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [protected org.jbpm.api.ProcessEngine org.jbpm.pvm.internal.processengine.SpringHelper.createProcessEngine()] threw exception; nested exception is org.jbpm.api.JbpmException: no org.jbpm.pvm.internal.tx.SpringTransaction in current environment

 

解决办法:
在jbpm.cfg.xml的<transaction-context>里加上一行
<transaction type="spring" />