Activiti hello world测试

Question

我正在尝试使用Activiti 5.13BPMN创建一个简单的Hello world应用程序。我在eclipse中创建了一个动态web应用程序项目，并将hello_world.bpmn图添加到根文件夹，将test.java和activiti.cfg.xml文件添加到src文件夹。应用程序只是将"Hello，world“输出到控制台，但我似乎无法让它这样做。下面是我用来运行应用程序的所有文件，还有我使用的PostgreSQL数据库(我创建了所有必要的表)

我的hello_world.bpmn文件如下：

开始事件->用户脚本(groovy) ->结束事件

<?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: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="myProcess" name="My process" isExecutable="true">
    <startEvent id="startProcess" name="Start"></startEvent>
    <scriptTask id="scriptProcess" name="Hello world" scriptFormat="groovy" activiti:autoStoreVariables="true">
      <script>System.out.println("Hello, world this is the activiti process")</script>
    </scriptTask>
    <endEvent id="endProcess" name="End"></endEvent>
    <sequenceFlow id="flow1" sourceRef="startProcess" targetRef="scriptProcess"></sequenceFlow>
    <sequenceFlow id="flow2" sourceRef="scriptProcess" targetRef="endProcess"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_myProcess">
    <bpmndi:BPMNPlane bpmnElement="myProcess" id="BPMNPlane_myProcess">
      <bpmndi:BPMNShape bpmnElement="startProcess" id="BPMNShape_startProcess">
        <omgdc:Bounds height="35.0" width="35.0" x="110.0" y="220.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="scriptProcess" id="BPMNShape_scriptProcess">
        <omgdc:Bounds height="55.0" width="105.0" x="210.0" y="210.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endProcess" id="BPMNShape_endProcess">
        <omgdc:Bounds height="35.0" width="35.0" x="390.0" y="220.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="145.0" y="237.0"></omgdi:waypoint>
        <omgdi:waypoint x="210.0" y="237.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="315.0" y="237.0"></omgdi:waypoint>
        <omgdi:waypoint x="390.0" y="237.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

我的activiti.cfg.xml文件如下：

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans ;
   http://www.springframework.org/schema/beans/spring-beans.xsd">
 <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
 <!-- Database configurations  -->
 <property name="databaseType" value="postgres" />
 <property name="jdbcUrl" value="jdbc:postgresql://localhost:5432/postgres" />
 <property name="jdbcDriver" value="org.postgresql.Driver" />
 <property name="jdbcUsername" value="user1234" />
 <property name="jdbcPassword" value="password1234" />
 </bean>
</beans>

我的test.java文件如下：

public class test {
    public static void main(String[] args) {

        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

        RuntimeService runtimeService = processEngine.getRuntimeService();
        RepositoryService repositoryService = processEngine.getRepositoryService();
        TaskService taskService = processEngine.getTaskService();
        ManagementService managementService = processEngine.getManagementService();
        IdentityService identityService = processEngine.getIdentityService();
        HistoryService historyService = processEngine.getHistoryService();
        FormService formService = processEngine.getFormService();

        runtimeService.startProcessInstanceByKey("myProcess");


        System.out.println("PRINT THIS MESSAGE");
    }
}

当我在我的tomcat服务器上运行应用程序时，我得到了以下结果：

    11:34:14,359 [localhost-startStop-1] INFO  org.springframework.web.context.ContextLoader  - Root WebApplicationContext: initialization started
11:34:14,578 [localhost-startStop-1] INFO  org.springframework.web.context.support.XmlWebApplicationContext  - Refreshing Root WebApplicationContext: startup date [Wed Aug 21 11:34:14 CDT 2013]; root of context hierarchy
11:34:14,750 [localhost-startStop-1] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from ServletContext resource [/WEB-INF/applicationContext.xml]
11:34:14,890 [localhost-startStop-1] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from ServletContext resource [/WEB-INF/activiti-standalone-context.xml]
11:34:14,953 [localhost-startStop-1] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from ServletContext resource [/WEB-INF/activiti-ui-context.xml]
11:34:15,328 [localhost-startStop-1] INFO  org.springframework.beans.factory.config.PropertyPlaceholderConfigurer  - Loading properties file from class path resource [db.properties]
11:34:15,343 [localhost-startStop-1] INFO  org.springframework.beans.factory.config.PropertyPlaceholderConfigurer  - Loading properties file from class path resource [ui.properties]
11:34:15,437 [localhost-startStop-1] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@caa278: defining beans [demoDataGenerator,dbProperties,dataSource,transactionManager,processEngineConfiguration,processEngine,repositoryService,runtimeService,taskService,historyService,managementService,identityService,activitiLoginHandler,activitiUiPropertyPlaceholder,navigatorManager,attachmentRendererManager,formPropertyRendererManager,variableRendererManager,componentFactories,processDefinitionFilterFactory,deploymentFilterFactory,navigationFragmentChangeListener,mainWindow,explorerApp,i18nManager,scopedTarget.messageSource,messageSource,notificationManager,viewManager,workflowDefinitionConversionFactory]; root of factory hierarchy
11:34:19,531 [localhost-startStop-1] INFO  org.activiti.engine.impl.ProcessEngineImpl  - ProcessEngine default created
11:34:19,531 [localhost-startStop-1] INFO  org.activiti.engine.impl.jobexecutor.JobExecutor  - Starting up the JobExecutor[org.activiti.engine.impl.jobexecutor.DefaultJobExecutor].
11:34:19,531 [Thread-1] INFO  org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable  - JobExecutor[org.activiti.engine.impl.jobexecutor.DefaultJobExecutor] starting to acquire jobs
11:34:19,546 [localhost-startStop-1] INFO  org.activiti.explorer.demo.DemoDataGenerator  - Initializing demo groups
11:34:19,765 [localhost-startStop-1] INFO  org.activiti.explorer.demo.DemoDataGenerator  - Initializing demo users
11:34:19,921 [localhost-startStop-1] INFO  org.activiti.explorer.demo.DemoDataGenerator  - Initializing demo process definitions
11:34:19,937 [localhost-startStop-1] INFO  org.activiti.explorer.demo.DemoDataGenerator  - Initializing demo models
11:34:19,953 [localhost-startStop-1] INFO  org.activiti.explorer.demo.DemoDataGenerator  - Initializing demo report data
11:34:19,953 [Thread-2] INFO  org.activiti.engine.impl.jobexecutor.JobExecutor  - Shutting down the JobExecutor[org.activiti.engine.impl.jobexecutor.DefaultJobExecutor].
11:34:19,953 [Thread-1] INFO  org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable  - JobExecutor[org.activiti.engine.impl.jobexecutor.DefaultJobExecutor] stopped job acquisition
11:34:20,281 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/VacationRequest.png
11:34:20,281 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/FixSystemFailureProcess.bpmn20.xml
11:34:20,484 [localhost-startStop-1] INFO  org.springframework.web.context.ContextLoader  - Root WebApplicationContext: initialization completed in 6109 ms
Aug 21, 2013 11:34:20 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Aug 21, 2013 11:34:20 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Aug 21, 2013 11:34:20 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 15043 ms
11:34:21,250 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/FixSystemFailureProcess.png
11:34:21,250 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/VacationRequest.bpmn20.xml
11:34:21,421 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/createTimersProcess.bpmn20.xml
11:34:21,484 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/simple-approval.simpleApprovalProcess.png
11:34:21,484 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/reviewSalesLead.bpmn20.xml
11:34:21,593 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/reviewSalesLead.reviewSaledLead.png
11:34:21,593 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/Helpdesk.png
11:34:21,593 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/Helpdesk.bpmn20.xml
11:34:21,656 [Thread-2] INFO  org.activiti.engine.impl.bpmn.deployer.BpmnDeployer  - Processing resource org/activiti/explorer/demo/process/simple-approval.bpmn20.xml
11:34:36,953 [Thread-2] INFO  org.activiti.engine.impl.jobexecutor.JobExecutor  - Starting up the JobExecutor[org.activiti.engine.impl.jobexecutor.DefaultJobExecutor].
11:34:36,953 [Thread-2] INFO  org.activiti.explorer.demo.DemoDataGenerator  - Demo report data generated
11:34:36,953 [Thread-4] INFO  org.activiti.engine.impl.jobexecutor.AcquireJobsRunnable  - JobExecutor[org.activiti.engine.impl.jobexecutor.DefaultJobExecutor] starting to acquire jobs

Answer 1

这里的内容看起来还不错。您是否查看了activiti explorer以确保正确部署您的流程？你也可以在浏览器中运行你的进程。在您开始在代码中使用它之前，这可以作为一个健全性检查。

这个进程名称看起来有点滑稽。通常，当您通过浏览器将进程部署到activiti时，它会在进程名称后附加一个版本号，如"myProcess:23“。这个扩展名是用来实例化流程的。

Answer 2

这段代码是完全错误的。要测试您的流程，请查看文档的this章节，或者按照Hethcox的建议使用Activiti Explorer。如果您想更正现有应用程序，请阅读process engine in a web application章节

Answer 3

我已经为此写了一篇非常详细的博客文章，它从设置开始，展示了如何创建两个完全工作(虽然简单)的工作流。

你可以在here上查看它，看看它是否有帮助。

打印"Hello Activiti“的第一个示例应该就是您要查找的内容。