try {
//IWorkflowSession是流程操作的入口,需要从runtimeContext获得。
IWorkflowSession workflowSession = runtimeContext.getWorkflowSession();
//创建流程实例
IProcessInstance processInstance = workflowSession.createProcessInstance(
"LeaveApplicationProcess",CurrentUserAssignmentHandler.APPLICANT);
//运行流程实例
processInstance.run();