Hi Jing,
There are lots of changes for spring intergration in jBPM-4.3. Please refer developer guide for the newest way to intergrate spring.
http://docs.jboss.com/jbpm/v4/devguide/html_single/#springIntegration
And here is a chinese translation version:
http://www.family168.com/tutorial/jbpm4devguide/html/springIntegration.html