（一） 开始一个请假流程
//user是请假人的actorId
ExecutionService es=JbpmServiceFactory.getInstance().openExecutionService(user);
HashMap vs=new HashMap();
//一些参数
vs.put(Constants.REQUEST_STATUS,String.valueOf(0));
vs.put(Constants.REQUEST_RETURN_INFO,"No info!");
vs.put(Constants.USER_NAME,EncodeTransfer.toISO(user));
vs.put(Constants.REQUEST_DAYS,String.valueOf(rea.getDays()));
try {
//开启请假流程
es.startProcessInstance(Constants.WORK_NAME, vs);
log.info("["+user+"]"+"申请假期开始！请假"+rea.getDays()+"天！");
return am.findForward("main");
} catch (ExecutionException ex) {
ex.printStackTrace();
log.error("请假进程无法开始！");
return am.findForward("error");
}finally{
es.close();
}
（二）当前执行任务
对于部门经理或者老板，找到要处理的请假。
String actorId = (String) req.getSession().getAttribute(Constants.USER);
if(actorId.equals("wang")){
actorId="boss";
}else if(actorId.equals("bigli")){
actorId="chief";
}
// get the execution service
ExecutionService executionService = JbpmServiceFactory.getInstance().
openExecutionService(actorId);
// get the tasklist from jbpm for user
List tasks = new ArrayList();
// add the jbpm tasks
tasks.addAll(executionService.getTaskList(actorId));
// put the tasklist into the form
mf.setTasks(tasks);
// get the tasklist from jbpm for user
List definitions = new ArrayList();
// add the jbpm definitions
definitions.addAll(executionService.getLatestDefinitions());
// put the tasklist into the form
mf.setRequests(definitions);
// close the execution service
executionService.close();
req.getSession().setAttribute("mainForm",mf);
log.debug("任务: " + tasks);
log.debug("当前可以执行的请求: " + definitions);
（三）处理请假
String actorId = (String) reqrest.getSession().getAttribute(Constants.
USER);
Long tokenId=new Long(req.getParameter("tokenId"));
// get the execution service
ExecutionService executionService = JbpmServiceFactory.getInstance().
openExecutionService(actorId);
Map hm=executionService.getVariables(tokenId);//变量
String act=req.getParameter("action");//进行转换的transition
executionService.endOfState(tokenId,hm,act);
executionService.close();