1000字范文 > activity连线排他网关和并行网关以及接收任务

activity连线排他网关和并行网关以及接收任务

时间：2020-12-29 01:49:01

连线：

新建bpmn文件：

注意：如果将流程图放置在和java类相同的路径，需要配置：

public class SequenceFlowTest {ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();/**部署流程定义（从inputStream）*/@Testpublic void deploymentProcessDefinition_inputStream(){InputStream inputStreamBpmn = this.getClass().getResourceAsStream("sequenceFlow.bpmn");InputStream inputStreamPng = this.getClass().getResourceAsStream("sequenceFlow.png");Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service.createDeployment()//创建一个部署对象.name("连线")//添加部署的名称.addInputStream("sequenceFlow.bpmn", inputStreamBpmn)//.addInputStream("sequenceFlow.png", inputStreamPng)//.deploy();//完成部署System.out.println("部署ID："+deployment.getId());//System.out.println("部署名称："+deployment.getName());//}/**启动流程实例*/@Testpublic void startProcessInstance(){//流程定义的keyString processDefinitionKey = "sequenceFlow";ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例，key对应helloworld.bpmn文件中id的属性值，使用key值启动，默认是按照最新版本的流程定义启动System.out.println("流程实例ID:"+pi.getId());//流程实例ID 101System.out.println("流程定义ID:"+pi.getProcessDefinitionId());//流程定义ID helloworld:1:4}/**查询当前人的个人任务*/@Testpublic void findMyPersonalTask(){String assignee = "赵六";List<Task> list = processEngine.getTaskService()//与正在执行的任务管理相关的Service.createTaskQuery()//创建任务查询对象/**查询条件（where部分）*/.taskAssignee(assignee)//指定个人任务查询，指定办理人//.taskCandidateUser(candidateUser)//组任务的办理人查询//.processDefinitionId(processDefinitionId)//使用流程定义ID查询//.processInstanceId(processInstanceId)//使用流程实例ID查询//.executionId(executionId)//使用执行对象ID查询/**排序*/.orderByTaskCreateTime().asc()//使用创建时间的升序排列/**返回结果集*///.singleResult()//返回惟一结果集//.count()//返回结果集的数量//.listPage(firstResult, maxResults);//分页查询.list();//返回列表if(list!=null && list.size()>0){for(Task task:list){System.out.println("任务ID:"+task.getId());System.out.println("任务名称:"+task.getName());System.out.println("任务的创建时间:"+task.getCreateTime());System.out.println("任务的办理人:"+task.getAssignee());System.out.println("流程实例ID："+task.getProcessInstanceId());System.out.println("执行对象ID:"+task.getExecutionId());System.out.println("流程定义ID:"+task.getProcessDefinitionId());System.out.println("########################################################");}}}/**完成我的任务*/@Testpublic void completeMyPersonalTask(){//任务IDString taskId = "3103";//完成任务的同时，设置流程变量，使用流程变量用来指定完成任务后，下一个连线，对应sequenceFlow.bpmn文件中${message=='不重要'}Map<String, Object> variables = new HashMap<String, Object>();variables.put("message", "重要");processEngine.getTaskService()//与正在执行的任务管理相关的plete(taskId,variables);System.out.println("完成任务：任务ID："+taskId);}}

说明：

1、一个活动中可以指定一个或多个SequenceFlow（Start中有一个，End中没有）。

* 开始活动中有一个SequenceFlow 。

* 结束活动中没有SequenceFlow 。

* 其他活动中有1条或多条SequenceFlow

2、如果只有一个，则可以不使用流程变量设置codition的名称；

如果有多个，则需要使用流程变量设置codition的名称。message表示流程变量的名称，‘不重要’表示流程变量的值，${}或#{}中间的内容要使用boolean类型的表达式，用来判断应该执行的连线。

排他网关：

新建bpmn文件

<?xml version="1.0" encoding="UTF-8"?><definitions xmlns="/spec/BPMN/0524/MODEL" xmlns:xsi="/2001/XMLSchema-instance" xmlns:activiti="/bpmn" xmlns:bpmndi="/spec/BPMN/0524/DI" xmlns:omgdc="/spec/DD/0524/DC" xmlns:omgdi="/spec/DD/0524/DI" typeLanguage="/2001/XMLSchema" expressionLanguage="/1999/XPath" targetNamespace="/test"><process id="exclusiveGateWay" name="exclusiveGateWayProcess" isExecutable="true"><startEvent id="startevent1" name="Start"></startEvent><userTask id="usertask1" name="费用报销申请" activiti:assignee="王小五"></userTask><sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow><userTask id="usertask2" name="审批【部门经理】" activiti:assignee="赵小六"></userTask><userTask id="usertask3" name="财务" activiti:assignee="胡小八"></userTask><userTask id="usertask4" name="审批【总经理】" activiti:assignee="田小七"></userTask><exclusiveGateway id="exclusivegateway1" name="Exclusive Gateway" default="默认执行财务"></exclusiveGateway><sequenceFlow id="flow2" sourceRef="usertask1" targetRef="exclusivegateway1"></sequenceFlow><sequenceFlow id="flow3" name="金额小于等于1000，大于等于500" sourceRef="exclusivegateway1" targetRef="usertask2"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${money>=500 && money<=1000}]]></conditionExpression></sequenceFlow><sequenceFlow id="默认执行财务" name="默认执行财务" sourceRef="exclusivegateway1" targetRef="usertask3"></sequenceFlow><sequenceFlow id="flow5" name="金额大于1000元" sourceRef="exclusivegateway1" targetRef="usertask4"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${money>1000}]]></conditionExpression></sequenceFlow><endEvent id="endevent1" name="End"></endEvent><sequenceFlow id="flow6" sourceRef="usertask2" targetRef="endevent1"></sequenceFlow><sequenceFlow id="flow7" sourceRef="usertask3" targetRef="endevent1"></sequenceFlow><sequenceFlow id="flow8" sourceRef="usertask4" targetRef="endevent1"></sequenceFlow></process><bpmndi:BPMNDiagram id="BPMNDiagram_exclusiveGateWay"><bpmndi:BPMNPlane bpmnElement="exclusiveGateWay" id="BPMNPlane_exclusiveGateWay"><bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1"><omgdc:Bounds height="35.0" width="35.0" x="340.0" y="50.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1"><omgdc:Bounds height="55.0" width="105.0" x="305.0" y="140.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2"><omgdc:Bounds height="55.0" width="105.0" x="80.0" y="390.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1"><omgdc:Bounds height="35.0" width="35.0" x="340.0" y="560.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask3" id="BPMNShape_usertask3"><omgdc:Bounds height="55.0" width="105.0" x="305.0" y="390.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask4" id="BPMNShape_usertask4"><omgdc:Bounds height="55.0" width="105.0" x="550.0" y="380.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="exclusivegateway1" id="BPMNShape_exclusivegateway1"><omgdc:Bounds height="40.0" width="40.0" x="337.0" y="260.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1"><omgdi:waypoint x="357.0" y="85.0"></omgdi:waypoint><omgdi:waypoint x="357.0" y="140.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2"><omgdi:waypoint x="357.0" y="195.0"></omgdi:waypoint><omgdi:waypoint x="357.0" y="260.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3"><omgdi:waypoint x="357.0" y="300.0"></omgdi:waypoint><omgdi:waypoint x="132.0" y="390.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="42.0" width="100.0" x="-117.0" y="-35.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5"><omgdi:waypoint x="357.0" y="300.0"></omgdi:waypoint><omgdi:waypoint x="602.0" y="380.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="14.0" width="84.0" x="16.0" y="-15.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6"><omgdi:waypoint x="132.0" y="445.0"></omgdi:waypoint><omgdi:waypoint x="357.0" y="560.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow7" id="BPMNEdge_flow7"><omgdi:waypoint x="357.0" y="445.0"></omgdi:waypoint><omgdi:waypoint x="357.0" y="560.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow8" id="BPMNEdge_flow8"><omgdi:waypoint x="602.0" y="435.0"></omgdi:waypoint><omgdi:waypoint x="357.0" y="560.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="默认执行财务" id="BPMNEdge_默认执行财务"><omgdi:waypoint x="357.0" y="300.0"></omgdi:waypoint><omgdi:waypoint x="357.0" y="390.0"></omgdi:waypoint><bpmndi:BPMNLabel><omgdc:Bounds height="14.0" width="72.0" x="10.0" y="0.0"></omgdc:Bounds></bpmndi:BPMNLabel></bpmndi:BPMNEdge></bpmndi:BPMNPlane></bpmndi:BPMNDiagram></definitions>

public class ExclusiveGateWayTest {ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();/**部署流程定义（从inputStream）*/@Testpublic void deploymentProcessDefinition_inputStream(){InputStream inputStreamBpmn = this.getClass().getResourceAsStream("exclusiveGateWay.bpmn");InputStream inputStreamPng = this.getClass().getResourceAsStream("exclusiveGateWay.png");Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service.createDeployment()//创建一个部署对象.name("排他网关")//添加部署的名称.addInputStream("exclusiveGateWay.bpmn", inputStreamBpmn)//.addInputStream("exclusiveGateWay.png", inputStreamPng)//.deploy();//完成部署System.out.println("部署ID："+deployment.getId());//System.out.println("部署名称："+deployment.getName());//}/**启动流程实例*/@Testpublic void startProcessInstance(){//流程定义的keyString processDefinitionKey = "exclusiveGateWay";ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例，key对应helloworld.bpmn文件中id的属性值，使用key值启动，默认是按照最新版本的流程定义启动System.out.println("流程实例ID:"+pi.getId());//流程实例ID 101System.out.println("流程定义ID:"+pi.getProcessDefinitionId());//流程定义ID helloworld:1:4}/**查询当前人的个人任务*/@Testpublic void findMyPersonalTask(){String assignee = "王小五";List<Task> list = processEngine.getTaskService()//与正在执行的任务管理相关的Service.createTaskQuery()//创建任务查询对象/**查询条件（where部分）*/.taskAssignee(assignee)//指定个人任务查询，指定办理人//.taskCandidateUser(candidateUser)//组任务的办理人查询//.processDefinitionId(processDefinitionId)//使用流程定义ID查询//.processInstanceId(processInstanceId)//使用流程实例ID查询//.executionId(executionId)//使用执行对象ID查询/**排序*/.orderByTaskCreateTime().asc()//使用创建时间的升序排列/**返回结果集*///.singleResult()//返回惟一结果集//.count()//返回结果集的数量//.listPage(firstResult, maxResults);//分页查询.list();//返回列表if(list!=null && list.size()>0){for(Task task:list){System.out.println("任务ID:"+task.getId());System.out.println("任务名称:"+task.getName());System.out.println("任务的创建时间:"+task.getCreateTime());System.out.println("任务的办理人:"+task.getAssignee());System.out.println("流程实例ID："+task.getProcessInstanceId());System.out.println("执行对象ID:"+task.getExecutionId());System.out.println("流程定义ID:"+task.getProcessDefinitionId());System.out.println("########################################################");}}}/**完成我的任务*/@Testpublic void completeMyPersonalTask(){//任务IDString taskId = "3904";//完成任务的同时，设置流程变量，使用流程变量用来指定完成任务后，下一个连线，对应exclusiveGateWay.bpmn文件中${money>1000}Map<String, Object> variables = new HashMap<String, Object>();variables.put("money", 200);processEngine.getTaskService()//与正在执行的任务管理相关的plete(taskId,variables);System.out.println("完成任务：任务ID："+taskId);}}

说明：

一个排他网关对应一个以上的顺序流由排他网关流出的顺序流都有个conditionExpression元素，在内部维护返回boolean类型的决策结果。决策网关只会返回一条结果。当流程执行到排他网关时，流程引擎会自动检索网关出口，从上到下检索如果发现第一条决策结果为true或者没有设置条件的(默认为成立)，则流出。如果没有任何一个出口符合条件，则抛出异常使用流程变量，设置连线的条件，并按照连线的条件执行工作流，如果没有条件符合的条件，则以默认的连线离开。例如：

则执行连线：

如果使用流程变量设置

则执行连线：

并行网关：

新建bpmn文件：

<?xml version="1.0" encoding="UTF-8"?><definitions xmlns="/spec/BPMN/0524/MODEL" xmlns:xsi="/2001/XMLSchema-instance" xmlns:activiti="/bpmn" xmlns:bpmndi="/spec/BPMN/0524/DI" xmlns:omgdc="/spec/DD/0524/DC" xmlns:omgdi="/spec/DD/0524/DI" typeLanguage="/2001/XMLSchema" expressionLanguage="/1999/XPath" targetNamespace="/test"><process id="parallelGateWay" name="parallelGateWayProcess" isExecutable="true"><startEvent id="startevent1" name="Start"></startEvent><endEvent id="endevent1" name="End"></endEvent><userTask id="usertask1" name="付款" activiti:assignee="买家"></userTask><userTask id="usertask2" name="发货" activiti:assignee="商家"></userTask><userTask id="usertask3" name="收款" activiti:assignee="商家"></userTask><userTask id="usertask4" name="收货" activiti:assignee="买家"></userTask><parallelGateway id="parallelgateway1" name="Parallel Gateway"></parallelGateway><parallelGateway id="parallelgateway2" name="Parallel Gateway"></parallelGateway><sequenceFlow id="flow1" sourceRef="startevent1" targetRef="parallelgateway1"></sequenceFlow><sequenceFlow id="flow2" sourceRef="parallelgateway1" targetRef="usertask1"></sequenceFlow><sequenceFlow id="flow3" sourceRef="usertask1" targetRef="usertask3"></sequenceFlow><sequenceFlow id="flow4" sourceRef="usertask3" targetRef="parallelgateway2"></sequenceFlow><sequenceFlow id="flow5" sourceRef="parallelgateway2" targetRef="endevent1"></sequenceFlow><sequenceFlow id="flow6" sourceRef="parallelgateway1" targetRef="usertask2"></sequenceFlow><sequenceFlow id="flow7" sourceRef="usertask2" targetRef="usertask4"></sequenceFlow><sequenceFlow id="flow8" sourceRef="usertask4" targetRef="parallelgateway2"></sequenceFlow></process><bpmndi:BPMNDiagram id="BPMNDiagram_parallelGateWay"><bpmndi:BPMNPlane bpmnElement="parallelGateWay" id="BPMNPlane_parallelGateWay"><bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1"><omgdc:Bounds height="35.0" width="35.0" x="323.0" y="20.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1"><omgdc:Bounds height="55.0" width="105.0" x="150.0" y="180.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2"><omgdc:Bounds height="55.0" width="105.0" x="450.0" y="180.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1"><omgdc:Bounds height="35.0" width="35.0" x="330.0" y="460.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask3" id="BPMNShape_usertask3"><omgdc:Bounds height="55.0" width="105.0" x="150.0" y="280.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="usertask4" id="BPMNShape_usertask4"><omgdc:Bounds height="55.0" width="105.0" x="450.0" y="280.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="parallelgateway1" id="BPMNShape_parallelgateway1"><omgdc:Bounds height="40.0" width="40.0" x="320.0" y="100.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="parallelgateway2" id="BPMNShape_parallelgateway2"><omgdc:Bounds height="40.0" width="40.0" x="330.0" y="380.0"></omgdc:Bounds></bpmndi:BPMNShape><bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1"><omgdi:waypoint x="340.0" y="55.0"></omgdi:waypoint><omgdi:waypoint x="340.0" y="100.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2"><omgdi:waypoint x="340.0" y="140.0"></omgdi:waypoint><omgdi:waypoint x="202.0" y="180.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3"><omgdi:waypoint x="202.0" y="235.0"></omgdi:waypoint><omgdi:waypoint x="202.0" y="280.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4"><omgdi:waypoint x="202.0" y="335.0"></omgdi:waypoint><omgdi:waypoint x="350.0" y="380.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5"><omgdi:waypoint x="350.0" y="420.0"></omgdi:waypoint><omgdi:waypoint x="347.0" y="460.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6"><omgdi:waypoint x="340.0" y="140.0"></omgdi:waypoint><omgdi:waypoint x="502.0" y="180.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow7" id="BPMNEdge_flow7"><omgdi:waypoint x="502.0" y="235.0"></omgdi:waypoint><omgdi:waypoint x="502.0" y="280.0"></omgdi:waypoint></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="flow8" id="BPMNEdge_flow8"><omgdi:waypoint x="502.0" y="335.0"></omgdi:waypoint><omgdi:waypoint x="350.0" y="380.0"></omgdi:waypoint></bpmndi:BPMNEdge></bpmndi:BPMNPlane></bpmndi:BPMNDiagram></definitions>

public class ParallelGateWayTest {ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();/**部署流程定义（从inputStream）*/@Testpublic void deploymentProcessDefinition_inputStream(){InputStream inputStreamBpmn = this.getClass().getResourceAsStream("parallelGateWay.bpmn");InputStream inputStreamPng = this.getClass().getResourceAsStream("parallelGateWay.png");Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service.createDeployment()//创建一个部署对象.name("并行网关")//添加部署的名称.addInputStream("parallelGateWay.bpmn", inputStreamBpmn)//.addInputStream("parallelGateWay.png", inputStreamPng)//.deploy();//完成部署System.out.println("部署ID："+deployment.getId());//System.out.println("部署名称："+deployment.getName());//}/**启动流程实例*/@Testpublic void startProcessInstance(){//流程定义的keyString processDefinitionKey = "parallelGateWay";ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例，key对应helloworld.bpmn文件中id的属性值，使用key值启动，默认是按照最新版本的流程定义启动System.out.println("流程实例ID:"+pi.getId());//流程实例ID 101System.out.println("流程定义ID:"+pi.getProcessDefinitionId());//流程定义ID helloworld:1:4}/**查询当前人的个人任务*/@Testpublic void findMyPersonalTask(){String assignee = "商家";List<Task> list = processEngine.getTaskService()//与正在执行的任务管理相关的Service.createTaskQuery()//创建任务查询对象/**查询条件（where部分）*/.taskAssignee(assignee)//指定个人任务查询，指定办理人//.taskCandidateUser(candidateUser)//组任务的办理人查询//.processDefinitionId(processDefinitionId)//使用流程定义ID查询//.processInstanceId(processInstanceId)//使用流程实例ID查询//.executionId(executionId)//使用执行对象ID查询/**排序*/.orderByTaskCreateTime().asc()//使用创建时间的升序排列/**返回结果集*///.singleResult()//返回惟一结果集//.count()//返回结果集的数量//.listPage(firstResult, maxResults);//分页查询.list();//返回列表if(list!=null && list.size()>0){for(Task task:list){System.out.println("任务ID:"+task.getId());System.out.println("任务名称:"+task.getName());System.out.println("任务的创建时间:"+task.getCreateTime());System.out.println("任务的办理人:"+task.getAssignee());System.out.println("流程实例ID："+task.getProcessInstanceId());System.out.println("执行对象ID:"+task.getExecutionId());System.out.println("流程定义ID:"+task.getProcessDefinitionId());System.out.println("########################################################");}}}/**完成我的任务*/@Testpublic void completeMyPersonalTask(){//任务IDString taskId = "4302";processEngine.getTaskService()//与正在执行的任务管理相关的plete(taskId);System.out.println("完成任务：任务ID："+taskId);}}

说明：

一个流程中流程实例只有1个，执行对象有多个并行网关的功能是基于进入和外出的顺序流的：

分支(fork)：并行后的所有外出顺序流，为每个顺序流都创建一个并发分支。

汇聚(join)：所有到达并行网关，在此等待的进入分支，直到所有进入顺序流的分支都到达以后，流程就会通过汇聚网关。

并行网关的进入和外出都是使用相同节点标识如果同一个并行网关有多个进入和多个外出顺序流，它就同时具有分支和汇聚功能。这时，网关会先汇聚所有进入的顺序流，然后再切分成多个并行分支。并行网关不会解析条件。即使顺序流中定义了条件，也会被忽略。并行网关不需要是“平衡的”（比如，对应并行网关的进入和外出节点数目不一定相等）。如图中标示是合法的：

接收任务：

接收任务是一个简单任务，它会等待对应消息的到达。当前，官方只实现了这个任务的java语义。当流程达到接收任务，流程状态会保存到数据库中。

在任务创建后，意味着流程会进入等待状态，直到引擎接收了一个特定的消息，这会触发流程穿过接收任务继续执行。

bpmn文件：

public class ReceiveTaskTest {ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();/**部署流程定义（从inputStream）*/@Testpublic void deploymentProcessDefinition_inputStream(){InputStream inputStreamBpmn = this.getClass().getResourceAsStream("receiveTask.bpmn");InputStream inputStreamPng = this.getClass().getResourceAsStream("receiveTask.png");Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service.createDeployment()//创建一个部署对象.name("接收活动任务")//添加部署的名称.addInputStream("receiveTask.bpmn", inputStreamBpmn)//.addInputStream("receiveTask.png", inputStreamPng)//.deploy();//完成部署System.out.println("部署ID："+deployment.getId());//System.out.println("部署名称："+deployment.getName());//}/**启动流程实例+设置流程变量+获取流程变量+向后执行一步*/@Testpublic void startProcessInstance(){//流程定义的keyString processDefinitionKey = "receiveTask";ProcessInstance pi = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例，key对应helloworld.bpmn文件中id的属性值，使用key值启动，默认是按照最新版本的流程定义启动System.out.println("流程实例ID:"+pi.getId());//流程实例ID 101System.out.println("流程定义ID:"+pi.getProcessDefinitionId());//流程定义ID helloworld:1:4/**查询执行对象ID*/Execution execution1 = processEngine.getRuntimeService()//.createExecutionQuery()//创建执行对象查询.processInstanceId(pi.getId())//使用流程实例ID查询.activityId("receivetask1")//当前活动的id，对应receiveTask.bpmn文件中的活动节点id的属性值.singleResult();/**使用流程变量设置当日销售额，用来传递业务参数*/processEngine.getRuntimeService()//.setVariable(execution1.getId(), "汇总当日销售额", 21000);/**向后执行一步，如果流程处于等待状态，使得流程继续执行*/processEngine.getRuntimeService().signal(execution1.getId());/**查询执行对象ID*/Execution execution2 = processEngine.getRuntimeService()//.createExecutionQuery()//创建执行对象查询.processInstanceId(pi.getId())//使用流程实例ID查询.activityId("receivetask2")//当前活动的id，对应receiveTask.bpmn文件中的活动节点id的属性值.singleResult();/**从流程变量中获取汇总当日销售额的值*/Integer value = (Integer)processEngine.getRuntimeService()//.getVariable(execution2.getId(), "汇总当日销售额");System.out.println("给老板发送短信：金额是："+value);/**向后执行一步，如果流程处于等待状态，使得流程继续执行*/processEngine.getRuntimeService().signal(execution2.getId());}}

本内容不代表本网观点和政治立场，如有侵犯你的权益请联系我们处理。

网友评论

网友评论仅供其表达个人看法，并不表明网站立场。