// 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();

import org.jbpm.delegation.*;
import kellerdu.jbpm.LogsFactory;
import org.apache.commons.logging.Log;
import kellerdu.jbpm.Constants;

public class ChiefDecision implements DecisionHandler {
    public ChiefDecision() {
    }

    /**
     * 判断是否需要主管批准，决定下一个要进行的transition
     *
     * @param executionContext ExecutionContext
     * @return String
     * @todo Implement this org.jbpm.delegation.DecisionHandler method
     */
    public String decide(ExecutionContext executionContext) {
        Log log=LogsFactory.getLogInstance(this.getClass());
        String ac=(String)executionContext.getVariable(Constants.USER_NAME);
        if(ac!=null&&(ac.equals("dali")||ac.equals("wang"))){
            log.info(ac+"需要老板批准！");
            return "BossApprove";
        }else{
            log.info(ac+"需要先经主管批准");
            return "ChiefApprove";
        }
    }
}
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（三）fork
package kellerdu.jbpm.delegation;

import org.jbpm.*;
import org.jbpm.delegation.*;
import org.jbpm.model.execution.*;
import java.util.*;

public class DecidedJoin implements JoinHandler {
    public DecidedJoin() {
    }

    /**
     * fork，只要一个分支到达，即可进行下一步操作，同时取消其它同时进行的分支。
     * 这里就是用户如果取消，请假就取消。如果用户请假批准，则用户不能取消。
     *
     * @param forkContext ForkContext
     * @throws ExecutionException
     * @todo Implement this org.jbpm.delegation.ForkHandler method
     */
    public void join(JoinContext joinContext) throws ExecutionException {
        Iterator it=joinContext.getConcurrentTokens().values().iterator();
        Token arrivingToken = joinContext.getToken();
        while(it.hasNext()){
            Token to=(Token)it.next();
            if(to.getId().equals(arrivingToken.getId())){
                //取消其它执行的Token
                joinContext.getExecutionService().cancelToken(to.getId());
            }
        }
         // reactivate the parent token.
          joinContext.reactivateToken( arrivingToken.getParent() );
    }
}

import org.jbpm.delegation.*;
import kellerdu.jbpm.LogsFactory;
import org.apache.commons.logging.Log;

public class BossSwimlane implements AssignmentHandler {
    public BossSwimlane() {
    }

    /**
     * 当前的状态有哪个actor来具体负责处理，选择是老板的actor来处理。
     *
     * 如果王林是老板，那么他请假可以用他的名称来开始一个请假流程，当他检查他需要批示的
     * 请假时，使用actorId=boss来找出所有的批示。这时selectActor返回的值就是一个常量“boss”
     *
     *
     * @param assignmentContext AssignmentContext
     * @return String
     * @todo Implement this org.jbpm.delegation.AssignmentHandler method
     */
    public String selectActor(AssignmentContext assignmentContext) {
        Log log = LogsFactory.getLogInstance(this.getClass());
        log.info("任务分配给老板");
        return "boss";
    }
}
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ackage kellerdu.jbpm.delegation;

import org.jbpm.delegation.*;
import kellerdu.jbpm.LogsFactory;
import org.apache.commons.logging.Log;

public class ChiefSwimlane implements AssignmentHandler {
    public ChiefSwimlane() {
    }

    /**
     * selectActor
     * @see BossSwimlane
     *
     * @param assignmentContext AssignmentContext
     * @return String
     * @todo Implement this org.jbpm.delegation.AssignmentHandler method
     */
    public String selectActor(AssignmentContext assignmentContext) {
       Log log = LogsFactory.getLogInstance(this.getClass());
        log.info("任务分配给上级主管");
       return "chief";
    }
}