Activiti学习笔记11 — 判断节点的使用

一、 创建流程

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <process id="确定旅游地点" name="确定旅游地点" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <receiveTask id="申请旅游经费" name="申请旅游经费"></receiveTask>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="申请旅游经费"></sequenceFlow>
    <exclusiveGateway id="exclusivegateway1" name="Exclusive Gateway" default="缺省值"></exclusiveGateway>
    <sequenceFlow id="flow2" sourceRef="申请旅游经费" targetRef="exclusivegateway1"></sequenceFlow>
    <receiveTask id="国外游" name="国外游"></receiveTask>
    <receiveTask id="国内游" name="国内游"></receiveTask>
    <receiveTask id="省内游" name="省内游"></receiveTask>
    <sequenceFlow id="经费大于等于10000" name="经费大于等于10000" sourceRef="exclusivegateway1" targetRef="国外游">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${money >= 10000}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="经费大于1000小于10000" name="经费大于1000小于10000" sourceRef="exclusivegateway1" targetRef="国内游" skipExpression="经费大于1000小于10000">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${money > 1000 && money < 10000}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="缺省值" name="缺省值" sourceRef="exclusivegateway1" targetRef="省内游"></sequenceFlow>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow6" sourceRef="国外游" targetRef="endevent1"></sequenceFlow>
    <sequenceFlow id="flow7" sourceRef="国内游" targetRef="endevent1"></sequenceFlow>
    <sequenceFlow id="flow8" sourceRef="省内游" targetRef="endevent1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_确定旅游地点">
    <bpmndi:BPMNPlane bpmnElement="确定旅游地点" id="BPMNPlane_确定旅游地点">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="350.0" y="50.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="申请旅游经费" id="BPMNShape_申请旅游经费">
        <omgdc:Bounds height="55.0" width="105.0" x="315.0" y="150.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="exclusivegateway1" id="BPMNShape_exclusivegateway1">
        <omgdc:Bounds height="40.0" width="40.0" x="347.0" y="260.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="国外游" id="BPMNShape_国外游">
        <omgdc:Bounds height="55.0" width="105.0" x="120.0" y="360.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="国内游" id="BPMNShape_国内游">
        <omgdc:Bounds height="55.0" width="105.0" x="315.0" y="360.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="省内游" id="BPMNShape_省内游">
        <omgdc:Bounds height="55.0" width="105.0" x="530.0" y="360.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="350.0" y="490.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="367.0" y="85.0"></omgdi:waypoint>
        <omgdi:waypoint x="367.0" y="150.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="367.0" y="205.0"></omgdi:waypoint>
        <omgdi:waypoint x="367.0" y="260.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="经费大于等于10000" id="BPMNEdge_经费大于等于10000">
        <omgdi:waypoint x="347.0" y="280.0"></omgdi:waypoint>
        <omgdi:waypoint x="173.0" y="280.0"></omgdi:waypoint>
        <omgdi:waypoint x="172.0" y="360.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="42.0" width="100.0" x="191.0" y="260.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="经费大于1000小于10000" id="BPMNEdge_经费大于1000小于10000">
        <omgdi:waypoint x="367.0" y="300.0"></omgdi:waypoint>
        <omgdi:waypoint x="367.0" y="360.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="42.0" width="100.0" x="380.0" y="309.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="缺省值" id="BPMNEdge_缺省值">
        <omgdi:waypoint x="387.0" y="280.0"></omgdi:waypoint>
        <omgdi:waypoint x="582.0" y="280.0"></omgdi:waypoint>
        <omgdi:waypoint x="582.0" y="360.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="14.0" width="36.0" x="519.0" y="260.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6">
        <omgdi:waypoint x="172.0" y="415.0"></omgdi:waypoint>
        <omgdi:waypoint x="367.0" y="490.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow7" id="BPMNEdge_flow7">
        <omgdi:waypoint x="367.0" y="415.0"></omgdi:waypoint>
        <omgdi:waypoint x="367.0" y="490.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow8" id="BPMNEdge_flow8">
        <omgdi:waypoint x="582.0" y="415.0"></omgdi:waypoint>
        <omgdi:waypoint x="367.0" y="490.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

二、发布流程

/**
     * 2、发布一个流程
     */
    @Test
    public void  testDeployProcess() {
        RepositoryService repositoryService = processEngine.getRepositoryService();
        DeploymentBuilder builder = repositoryService.createDeployment();
        // 加载发布资源
        builder.name("判断分支结点流程测试") // 设置流程显示别名
                .addClasspathResource("travel.bpmn") // 设置流程规则文件
                .addClasspathResource("travel.png"); // 设置流程规则的图片
        // 发布流程
        builder.deploy();
    }

三、运行、测试流程

    /**
     * 3、启动流程、执行任务，并查看状态
     */
    @Test
    public void testExcusiveGateway() {        
        // 获取服务对象的实例
        RuntimeService runtimeService = processEngine.getRuntimeService();

        String processDefinitionKey = "确定旅游地点";
        // 自动执行与Key相对应的流程的最高版本
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(processDefinitionKey);        
        
        String processInstanceId = processInstance.getId();        
        logger.info("processInstanceId:" + processInstance.getId());
        
        //获取当前流程下Execution对象
        Execution e1 = runtimeService
                                            .createExecutionQuery()
                                            .processInstanceId(processInstanceId) //每个流程的唯一标识
                                            .activityId("申请旅游经费")    //每个活动的唯一标识
                                            .singleResult();
        Assert.assertNotNull(e1);
        //执行逻辑，请领导批示旅游经费
        Double money =11500d;
        //把金额放入变量中
        runtimeService.setVariable(e1.getId(), "money", money);
        logger.info("领导批示的旅游经费是: " + money);
        
        //推动流程流转
        logger.info("executionId: " + e1.getId());
        runtimeService.signal(e1.getId());
        
        if (money >= 10000d) {
            Execution e2 = runtimeService
                                        .createExecutionQuery()
                                        .processInstanceId(processInstanceId) //每个流程的唯一标识
                                        .activityId("国外游")    //每个活动的唯一标识
                                        .singleResult();
            Assert.assertNotNull(e2);
            logger.info("由于领导指示的经费是：" + runtimeService.getVariable(e2.getId(), "money") + ",所以你可以国外游!" );
            
            //推动流程流转
            runtimeService.signal(e2.getId());
        } else if ( money > 1000d && money < 10000d ) {
            Execution e2 = runtimeService
                    .createExecutionQuery()
                    .processInstanceId(processInstanceId) //每个流程的唯一标识
                    .activityId("国内游")    //每个活动的唯一标识
                    .singleResult();
            Assert.assertNotNull(e2);
            logger.info("由于领导指示的经费是：" + runtimeService.getVariable(e2.getId(), "money") + ",所以你可以国内游!" );
            
            //推动流程流转
            runtimeService.signal(e2.getId());
        } else {
            Execution e2 = runtimeService
                    .createExecutionQuery()
                    .processInstanceId(processInstanceId) //每个流程的唯一标识
                    .activityId("省内游")    //每个活动的唯一标识
                    .singleResult();
            Assert.assertNotNull(e2);
            logger.info("由于领导指示的经费是：" + runtimeService.getVariable(e2.getId(), "money") + ",所以你可以省内游!" );
            
            //推动流程流转
            runtimeService.signal(e2.getId());
        }
        
        //检查结束状态
        ProcessInstance pInstance = runtimeService
                                                        .createProcessInstanceQuery()
                                                        .processInstanceId(processInstanceId)
                                                        .singleResult();
        Assert.assertNull(pInstance);
        logger.info("判断分支结点流程成功执行！");        
    }

四、运行结果

[INFO][2015-12-02 14:39:58,335][com.mcs.activiti.test.TestExclusiveGateway]processInstanceId:170001
[INFO][2015-12-02 14:39:58,641][com.mcs.activiti.test.TestExclusiveGateway]领导批示的旅游经费是: 11500.0
[INFO][2015-12-02 14:39:58,642][com.mcs.activiti.test.TestExclusiveGateway]executionId: 170001
[INFO][2015-12-02 14:39:58,816][com.mcs.activiti.test.TestExclusiveGateway]由于领导指示的经费是：11500.0,所以你可以国外游!
[INFO][2015-12-02 14:39:58,914][com.mcs.activiti.test.TestExclusiveGateway]判断分支结点流程成功执行！