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  • Activiti工作流与spring集成

    一.前言

          前面Activiti工作流的学习，说明了Activiti的基本应用，在我们开发中可以根据实际的业务参考Activiti的API去更好的理解以及巩固。我们实际的开发中我们基本上都使用spring框架进行开发，现在来说明一下Activiti工作流与spring集成，Activiti工作流与spring集成还算比较简单，可以参考Activiti的API来进行整合。

    二.Activiti常用的表

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    ---------------------------------------------部署对象和流程定义相关的表---------------------------------------------
     
    --部署对象信息表
    SELECT T.*, T.ROWID FROM ACT_RE_DEPLOYMENT T;
     
    --流程定义表
    --ID_ 由KEY_ + VERSION_ + 随机生成是数组成
    SELECT T.*, T.ROWID FROM ACT_RE_PROCDEF T where t.category_='1' order by t.version_ asc;
     
    --资源文件表
    SELECT T.*, T.ROWID FROM ACT_GE_BYTEARRAY T;
     
    --主键生成策略表
    SELECT T.*, T.ROWID FROM ACT_GE_PROPERTY T;
     
    ------------------------------------------流程实例、执行对象、任务------------------------------------------------
     
    --正在执行的执行对象表
    -- 执行ID_ 56  流程实例ID_ 56  流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55  正在运行的任务定义ID_ 【可变】 USERTASKE736BEF8-4133-7B3D-F510-7B2DE7BEA8C6
    SELECT T.*, T.ROWID FROM ACT_RU_EXECUTION T;
     
    --流程实例历史表 开始信息
    --历史流程定义ID_ 56 流程S实例ID_ 56 业务KEY_10000001 流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55 开始任务节点ID_ STARTEVENT52B3145F-C133-7B3D-F50F-E6D48BA60EAE
    SELECT T.*, T.ROWID FROM ACT_HI_PROCINST T;
     
    --正在执行的任务对象表
    --任务ID_ 68  执行ID_ 56  流程实例ID_ 56  流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55  任务节点ID_ USERTASKE736BEF8-4133-7B3D-F510-7B2DE7BEA8C6
    SELECT T.*, T.ROWID FROM ACT_RU_TASK T;
     
    --历史任务流程实例信息
    --历史任务ID_ 68   流程实例ID_ 56  执行实例ID_ 56   流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55  任务节点ID_ USERTASKE736BEF8-4133-7B3D-F510-7B2DE7BEA8C6   表单KEY_ /PAGES/HOLIDAY/HOLIDAYMANAGE/HOLIDAYFORMHANDLE.JSP
    --历史任务ID_ 74   流程实例ID_ 56  执行实例ID_ 56  流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55  任务节点ID_ USERTASK04A84BE1-1133-7B3D-F511-1D0B7BB0A668   表单KEY_ /PAGES/HOLIDAY/HOLIDAYMANAGE/HOLIDAYFORMVIEW.JSP
    SELECT T.*, T.ROWID FROM ACT_HI_TASKINST T;
     
    --所有活动节点历史任务表
    --历史任务ID_58 流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55 流程实例ID_ 56  流程执行ID_ 56  任务节点ID_ STARTEVENT52B3145F-C133-7B3D-F50F-E6D48BA60EAE
    --历史任务ID_67 流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55 流程实例ID_ 56  流程执行ID_ 56  任务节点ID_ USERTASKE736BEF8-4133-7B3D-F510-7B2DE7BEA8C6   任务ID_ 68
    --历史任务ID_73 流程定义ID_ _3701622B-4133-7B3D-F50F-E14B4F21E847:1:55 流程实例ID_ 56  流程执行ID_ 56  任务节点ID_ USERTASK04A84BE1-1133-7B3D-F511-1D0B7BB0A668   任务ID_ 74
    SELECT T.*, T.ROWID FROM ACT_HI_ACTINST T;
     
    ----------------------------------------流程变量信息--------------------------------------------------
    --正在执行的流程变量信息
    SELECT T.*, T.ROWID FROM ACT_RU_VARIABLE T;
     
    --历史流程变量信息 存放历史表单重要信息
    --流程实例ID_ 56  执行实例ID_ 56 任务ID_
    SELECT T.*, T.ROWID FROM ACT_HI_VARINST T;
     
     
    -------------------------------------------历史意见信息-----------------------------------------------
     
    --历史审批意见表
    --任务ID_ 68  流程定义ID_ 56 
    SELECT T.*, T.ROWID FROM ACT_HI_COMMENT T;
     
    -----------------------------------------节点参与者信息-------------------------------------------------
    --任务办理人表（个人任务、组任务）
    SELECT T.*, T.ROWID FROM ACT_RU_IDENTITYLINK T;
     
    --历史任务办理人表（个人任务、组任务）
    SELECT T.*, T.ROWID FROM ACT_HI_IDENTITYLINK T;
     
    --临时对象
    SELECT T.*, T.ROWID FROM EA_IST.IST_APPR_BUSI_DATA T

    三.Activiti与spring整合xml配置文件

    向spring配置文件中，添加一个spring-workflow2-activiti.xml配置文件，里面如下：

    复制代码
    <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-2.5.xsd">

    <!--工作流引擎配置 -->
    <bean id="processEngineConfiguration" class="com.shine.workflow2.spring.ShineSpringProcessEngineConfiguration">
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManager" />
        <property name="databaseSchemaUpdate" value="false" />
        <property name="jobExecutorActivate" value="false" />
         <!-- 组织机构适配  -->
        <property name="organizationConnector"  ref="organizationAdapter" />

     </bean>
     
      <!-- 组织机构适配实现  -->
     <bean id="organizationAdapter" class="com.shine.workflow2.organization.impl.OrganizationAdapter" />

    <!--工作流引擎 -->
    <bean id="processEngine" class="com.shine.workflow2.spring.ShineProcessEngineFactoryBean"> 
        <property name="processEngineConfiguration" ref="processEngineConfiguration" />
    </bean>
    
    
    <!--扩展服务 -->
    <bean id="processDefinitionService" factory-bean="processEngine"
        factory-method="getProcessDefinitionService" />
    <bean id="processLogService" factory-bean="processEngine"
        factory-method="getProcessLogService" />
    <bean id="processManagementService" factory-bean="processEngine"
        factory-method="getProcessManagementService" />
    
    <!--原生服务 -->
    <bean id="repositoryService" factory-bean="processEngine"
        factory-method="getRepositoryService" />
    <bean id="runtimeService" factory-bean="processEngine"
        factory-method="getRuntimeService" />
    <bean id="taskService" factory-bean="processEngine"
        factory-method="getTaskService" />
    <bean id="historyService" factory-bean="processEngine"
        factory-method="getHistoryService" />
    <bean id="managementService" factory-bean="processEngine"
        factory-method="getManagementService" />
    <bean id="formService" factory-bean="processEngine"
        factory-method="getFormService" />
    <bean id="identityService" factory-bean="processEngine"
        factory-method="getIdentityService" />
    
</beans>
    复制代码

    四.Activiti工作流常用service　

      1.BaseProcessService

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    /**
     *
     */
    package com.shine.eosp.workflow2.common.process;
     
    import org.activiti.engine.impl.persistence.entity.ProcessDefinitionEntity;
    import org.activiti.engine.impl.pvm.PvmActivity;
    import org.activiti.engine.impl.pvm.process.ActivityImpl;
    import org.activiti.engine.impl.task.TaskDefinition;
    import org.activiti.engine.repository.ProcessDefinition;
    import org.activiti.engine.runtime.Execution;
    import org.activiti.engine.runtime.ProcessInstance;
    import org.activiti.engine.task.Task;
     
    import com.shine.workflow2.exception.WorkflowException;
     
    /**
     *
     * 类说明: 常用工作流核心操作封装 .
     *
     * <pre>
     * 修改日期          修改人              修改原因
     * 2016-6-2     hongwz         新建
     * </pre>
     */
    public interface BaseProcessService {
         
         
        /**
         * 方法说明 ： 根据流程定义Key查询最新流程定义.
         *
         * @param processDefinitionKey
         * @throws WorkflowException
         */
        public ProcessDefinition findLatestProcessDefinitionByPrcDefKey(String processDefinitionKey) throws WorkflowException;
         
        /**
         * 方法说明 ： 根据流程定义Id查询流程定义.
         *
         * @param processDefinitionId  流程定义Id
         * @throws WorkflowException
         */
        public ProcessDefinitionEntity findProcessDefinitionEntityByProcDefId(String processDefinitionId) throws WorkflowException;
             
        /**
         *
         * 方法说明  ： 根据流程实例Id查询流程实例.
         *
         * @param processInstanceId 流程实例Id
         * @return
         * @throws WorkflowException
         */
        public ProcessInstance findProcessInstanceByProcInst(String processInstanceId) throws WorkflowException;
         
        /**
         * 根据流程实例Id查询流程实例.
         *
         * @param processInstanceId
         * @throws WorkflowException
         */
        public Execution findExecutionByProcInst(String processInstanceId) throws WorkflowException;
         
        /**
         * 方法说明 ： 根据流程实例Id查询任务.
         *
         * @param processInstanceId 流程实例Id
         * @throws WorkflowException
         */
        public Task findTaskByProcInstId(String processInstanceId) throws WorkflowException;
         
        /**
         * 方法说明 ： 根据实例Id查询任务.
         *
         * @param executionId 实例Id
         * @throws WorkflowException
         */
        public Task findTaskByExecutionId(String executionId) throws WorkflowException;
         
        /**
         * 方法说明 ： 根据活动节点查询任务定义.
         *
         * @param activityImpl  活动节点
         * @throws WorkflowException
         */
        public TaskDefinition findTaskDefinitionByActivityImpl(ActivityImpl activityImpl) throws WorkflowException;
         
        /**
         * 方法说明 : 查询上一个节点.
         *
         * @param activityImpl 活动节点
         * @param activityId 当前活动节点ID 
         * @param elString
         * @throws ShineException
         */
        public TaskDefinition beforeTaskDefinition(ActivityImpl activityImpl,String activityId, String elString) throws WorkflowException;
         
        /**
         * 方法说明 : 查询下一个节点.
         *
         * @param activityImpl 活动节点
         * @param activityId 当前活动节点ID 
         * @param elString
         * @throws ShineException
         */
        public TaskDefinition nextTaskDefinition(ActivityImpl activityImpl,String activityId, String elString) throws WorkflowException;
     
        /**
         * 方法说明： 根据活动节点、活动线路查询线路的连接线.
         *
         * @throws WorkflowException
         */
        public PvmActivity findPvmActivity(ActivityImpl activityImpl, String transitions) throws WorkflowException;
         
        /**
         * 方法说明 ：根据流程定义Id查询任务定义
         *
         * @param processDefinitionId 流程定义Id
         * @return
         * @throws WorkflowException
         */
        public TaskDefinition findTaskDefinition(String processDefinitionId) throws WorkflowException;
         
        /**
         * 方法说明 ： 添加任务意见.
         *
         * @param taskId      任务Id
         * @param processInstanceId   流程实例Id
         * @param comment     意见
         * @throws WorkflowException
         */
        public void addTaskComment(String taskId, String processInstanceId, String comment) throws WorkflowException;
         
        /**
         * 方法说明 ： 拾取任务.
         *
         * @param taskId  任务Id
         * @param operator 办理人
         * @throws WorkflowException
         */
        public void claimTask(String taskId, String operator) throws WorkflowException;
         
        /**
         * 方法说明 ： 根据流程定义Id查询最新流程定义.
         *
         * @param processDefinitionId 流程定义Id
         * @return
         * @throws WorkflowException
         */
        public ProcessDefinition findProcessDefinitionByPrcDefId(String processDefinitionId) throws WorkflowException;
    }

    2.BaseProcessServiceImpl

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    /**
     *
     */
    package com.shine.eosp.workflow2.common.process;
     
    import java.util.Iterator;
    import java.util.List;
     
    import org.activiti.engine.HistoryService;
    import org.activiti.engine.RepositoryService;
    import org.activiti.engine.RuntimeService;
    import org.activiti.engine.TaskService;
    import org.activiti.engine.impl.RepositoryServiceImpl;
    import org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior;
    import org.activiti.engine.impl.persistence.entity.ProcessDefinitionEntity;
    import org.activiti.engine.impl.pvm.PvmActivity;
    import org.activiti.engine.impl.pvm.PvmTransition;
    import org.activiti.engine.impl.pvm.process.ActivityImpl;
    import org.activiti.engine.impl.task.TaskDefinition;
    import org.activiti.engine.repository.ProcessDefinition;
    import org.activiti.engine.runtime.Execution;
    import org.activiti.engine.runtime.ProcessInstance;
    import org.activiti.engine.task.Task;
    import org.apache.commons.lang3.StringUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
     
    import com.shine.util.CollectionUtil;
    import com.shine.workflow2.exception.WorkflowException;
     
    /**
     *
     * 类说明: 常用工作流核心操作封装 .
     *
     * <pre>
     * 修改日期          修改人              修改原因
     * 2016-6-2     hongwz         新建
     * </pre>
     */
    public class BaseProcessServiceImpl implements BaseProcessService {
         
        /**
         * log.
         */
        private static Logger logger = LoggerFactory.getLogger(BaseProcessServiceImpl.class);
            
        @Autowired
        private RepositoryService repositoryService;
         
        @Autowired
        private RuntimeService runtimeService;
         
        @Autowired
        private TaskService taskService;
         
        @Autowired
        private HistoryService historyService;
         
        /**
         * 方法说明 ： 根据流程定义Key查询最新流程定义.
         *
         * @param processDefinitionKey  流程定义Key
         * @return
         * @throws WorkflowException
         */
        @Override
        public ProcessDefinition findLatestProcessDefinitionByPrcDefKey(String processDefinitionKey) throws WorkflowException{
             
            ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                                                                   .processDefinitionKey(processDefinitionKey)
                                                                   .latestVersion()
                                                                   .singleResult();
            return processDefinition;
                                     
        }
         
        /**
         * 方法说明 ： 根据流程定义Id查询最新流程定义.
         *
         * @param processDefinitionId 流程定义Id
         * @return
         * @throws WorkflowException
         */
        @Override
        public ProcessDefinition findProcessDefinitionByPrcDefId(String processDefinitionId) throws WorkflowException{
            ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                    .processDefinitionId(processDefinitionId)
                    .orderByProcessDefinitionVersion()
                    .desc()
                    .singleResult();
             
            return processDefinition;
        }
         
        /**
         * 方法说明 ： 根据流程定义Id查询流程定义.
         *
         * @param processDefinitionId  流程定义Id
         * @return 
         * @throws WorkflowException
         */
        @Override
        public ProcessDefinitionEntity findProcessDefinitionEntityByProcDefId(String processDefinitionId) throws WorkflowException{
             
            ProcessDefinitionEntity processDefinitionEntity  = (ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService)
                                                                      .getDeployedProcessDefinition(processDefinitionId);
            return processDefinitionEntity;
        }
         
        /**
         *
         * 方法说明  ： 根据流程实例Id查询流程实例.
         *
         * @param processInstanceId 流程实例Id
         * @return
         * @throws WorkflowException
         */
        @Override
        public ProcessInstance findProcessInstanceByProcInst(String processInstanceId) throws WorkflowException{
            return runtimeService.createProcessInstanceQuery()
                                 .processInstanceId(processInstanceId)
                                 .singleResult();
        }
         
         
        /**
         * 根据流程实例Id查询流程实例.
         *
         * @param processInstanceId
         * @return
         * @throws WorkflowException
         */
        @Override
        public Execution findExecutionByProcInst(String processInstanceId) throws WorkflowException{
            return runtimeService.createExecutionQuery().processInstanceId(processInstanceId).singleResult();
        }
         
        /**
         * 方法说明 ： 根据流程实例Id查询任务.
         *
         * @param processInstanceId 流程实例Id
         * @return
         * @throws WorkflowException
         */
        @Override
        public Task findTaskByProcInstId(String processInstanceId) throws WorkflowException{
            return taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();
        }
         
        /**
         * 方法说明 ： 根据实例Id查询任务.
         *
         * @param executionId 实例Id
         * @return
         * @throws WorkflowException
         */
        @Override
        public Task findTaskByExecutionId(String executionId) throws WorkflowException{
            return taskService.createTaskQuery().executionId(executionId).singleResult();
        }
         
        /**
         * 方法说明 ： 根据活动节点查询任务定义.
         *
         * @param activityImpl  活动节点
         * @return
         * @throws WorkflowException
         */
        @Override
        public TaskDefinition findTaskDefinitionByActivityImpl(ActivityImpl activityImpl) throws WorkflowException{
              return ((UserTaskActivityBehavior)activityImpl.getActivityBehavior()).getTaskDefinition(); 
        }
         
        /**
         * 方法说明 : 查询上一个节点.
         *
         * @param activityImpl 活动节点
         * @param activityId 当前活动节点ID 
         * @param elString
         * @return
         * @throws ShineException
         */
        @Override
        public TaskDefinition beforeTaskDefinition(ActivityImpl activityImpl,String activityId, String elString) throws WorkflowException {
            if("userTask".equals(activityImpl.getProperty("type")) && !activityId.equals(activityImpl.getId())){ 
                TaskDefinition taskDefinition = null;
                if(activityImpl != null){
                    taskDefinition = findTaskDefinitionByActivityImpl(activityImpl);
                }
                return taskDefinition;
            }else{ 
                List<PvmTransition> inTransitions = activityImpl.getIncomingTransitions();   //通过活动节点查询所有线路
                if(!CollectionUtil.isEmpty(inTransitions)){
                    List<PvmTransition> inTransitionsTemp = null; 
                    for(PvmTransition tr:inTransitions){   
                        PvmActivity ac = tr.getSource();      //获取线路的前节点   
                        if("exclusiveGateway".equals(ac.getProperty("type"))){ 
                            inTransitionsTemp = ac.getIncomingTransitions(); 
                            if(inTransitionsTemp.size() == 1){ 
                                return beforeTaskDefinition((ActivityImpl)inTransitionsTemp.get(0).getSource(), activityId, elString); 
                            }else if(inTransitionsTemp.size() > 1){ 
                                for(PvmTransition tr1 : inTransitionsTemp){ 
                                    Object s = tr1.getProperty("conditionText"); 
                                    if(elString.equals(StringUtils.replacePattern(StringUtils.trim(s.toString()), " ", ""))){ 
                                        return beforeTaskDefinition((ActivityImpl)tr1.getSource(), activityId, elString); 
                                    } 
                                } 
                            } 
                        }
                    }
                }
                return null; 
            } 
        }
         
         
        /**
         * 方法说明 : 查询下一个节点.
         *
         * @param activityImpl 活动节点
         * @param activityId 当前活动节点ID 
         * @param elString
         * @return
         * @throws ShineException
         */
        @Override
        public TaskDefinition nextTaskDefinition(ActivityImpl activityImpl,String activityId, String elString) throws WorkflowException {
             
            if("userTask".equals(activityImpl.getProperty("type")) && !activityId.equals(activityImpl.getId())){ 
                TaskDefinition taskDefinition = null;
                if(activityImpl != null){
                    taskDefinition = findTaskDefinitionByActivityImpl(activityImpl);
                }
                return taskDefinition;
            }else{
                List<PvmTransition> outTransitions = activityImpl.getOutgoingTransitions();   //通过活动节点查询所有线路
                if(!CollectionUtil.isEmpty(outTransitions)){
                    List<PvmTransition> outTransitionsTemp = null; 
                    for(PvmTransition tr:outTransitions){  
                        PvmActivity ac = tr.getDestination();         //获取线路的终点节点   
                        if("exclusiveGateway".equals(ac.getProperty("type"))){ 
                            outTransitionsTemp = ac.getOutgoingTransitions(); 
                            if(outTransitionsTemp.size() == 1){ 
                                return nextTaskDefinition((ActivityImpl)outTransitionsTemp.get(0).getDestination(), activityId, elString); 
                            }else if(outTransitionsTemp.size() > 1){ 
                                for(PvmTransition tr1 : outTransitionsTemp){ 
                                    Object s = tr1.getProperty("conditionText"); 
                                    if(s != null && elString.equals(StringUtils.replacePattern(StringUtils.trim(s.toString()), " ", ""))){ 
                                        return nextTaskDefinition((ActivityImpl)tr1.getDestination(), activityId, elString); 
                                    } 
                                } 
                            } 
                        }else if("userTask".equals(ac.getProperty("type"))){ 
                            return findTaskDefinitionByActivityImpl((ActivityImpl)ac);
                        }
                        else if("startEvent".equals(ac.getProperty("type"))){ 
                            return findTaskDefinitionByActivityImpl((ActivityImpl)ac);
                        }
                        else{ 
                            logger.info(ac.getProperty("type").toString()); 
                        } 
                    }
                }
                return null; 
            }
         
        }
         
        /**
         * 方法说明： 根据活动节点、活动线路查询线路的连接线.
         *
         * @return
         * @throws WorkflowException
         */
        @SuppressWarnings("rawtypes")
        @Override
        public PvmActivity findPvmActivity(ActivityImpl activityImpl, String transitions) throws WorkflowException{
             
            PvmActivity activity = null;
            List<PvmTransition> pvmTransitions = activityImpl.getOutgoingTransitions();   //获取所有线路
             
            for (Iterator iterator = pvmTransitions.iterator(); iterator.hasNext();) {
                    PvmTransition pvmTransition = (PvmTransition) iterator.next();
                    PvmActivity pvmActivity = pvmTransition.getDestination();           //获取下一个任务节点
                    String transitionsVal = (String) pvmActivity.getProperty("name");
                    if(transitions.equals(transitionsVal)){
                        activity = pvmActivity;
                        break;
                    }
            }
            return activity;
        }
         
        /**
         * 方法说明 ：根据流程定义Id查询任务定义
         *
         * @param processDefinitionId 流程定义Id
         * @return
         * @throws WorkflowException
         */
        @Override
        public TaskDefinition findTaskDefinition(String processDefinitionId) throws WorkflowException{
             
            //获取流程定义
            ProcessDefinitionEntity processDefinitionEntity = findProcessDefinitionEntityByProcDefId(processDefinitionId);
            TaskDefinition tdf = null;
             
            if(processDefinitionEntity != null){
                List<ActivityImpl> activityImpls = processDefinitionEntity.getActivities();    //获取所有活动的节点
                for(int i = activityImpls.size() - 1; i > 0; i-- ){
                    ActivityImpl activityImpl = activityImpls.get(i);    
                    String startEventType = (String) activityImpl.getProperty("type");
                    if("startEvent".equals(startEventType)){
                        tdf = nextTaskDefinition(activityImpl, activityImpl.getId(), null);
                    }
                }  
            }
            return tdf;
        }
         
        /**
         * 方法说明 ： 添加任务意见.
         *
         * @param taskId      任务Id
         * @param processInstanceId   流程实例Id
         * @param comment     意见
         * @throws WorkflowException
         */
        @Override
        public void addTaskComment(String taskId,String processInstanceId,String comment) throws WorkflowException{
             taskService.addComment(taskId, processInstanceId, comment);
        }
         
        /**
         * 方法说明 ： 拾取任务.
         *
         * @param taskId  任务Id
         * @param operator 办理人
         * @throws WorkflowException
         */
        @Override
        public void claimTask(String taskId,String operator) throws WorkflowException{
             taskService.claim(taskId, operator);
        }
    }

    引用原文：http://www.cnblogs.com/hongwz/p/5548473.html

    写博客是为了记住自己容易忘记的东西，另外也是对自己工作的总结，文章可以转载，无需版权。希望尽自己的努力，做到更好，大家一起努力进步！

    如果有什么问题，欢迎大家一起探讨，代码如有问题，欢迎各位大神指正！
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  • 原文地址：https://www.cnblogs.com/summary-2017/p/8974195.html
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