activiti部署流程定义文件后无法查询到流程信息原因

      初学activiti，在参考编写流程定义文件后，部署到activiti后，根据流程名称查询流程信息，始终报错：

org.activiti.engine.ActivitiObjectNotFoundException: no processes deployed with key 'helloword'
	at org.activiti.engine.impl.persistence.deploy.DeploymentManager.findDeployedLatestProcessDefinitionByKey(DeploymentManager.java:125)
	at org.activiti.engine.impl.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:79)
	at org.activiti.engine.impl.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:37)
	at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)
	at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)
	at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:37)
	at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)
	at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)
	at org.activiti.engine.impl.RuntimeServiceImpl.startProcessInstanceByKey(RuntimeServiceImpl.java:69)
	at com.feng.test02.Test02Main.start(Test02Main.java:58)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

 

    代码如下：

     单元测试类：

	@Before
	public void before(){
		//创建流程引擎
		ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:com/feng/test02/activiti-config.xml");
		ProcessEngineConfiguration config = ctx.getBean( ProcessEngineConfiguration.class);
		config.setProcessEngineName("测试流程引擎");
		engine = config.buildProcessEngine();
	}
	
	@Test
	public void build() throws Exception{
		//部署流程定义文件
		RepositoryService repositoryService = engine.getRepositoryService();
		Deployment deployment = repositoryService.createDeployment().addClasspathResource("com/feng/test02/helloword.bpmn.xml").name("helloword").deploy();
		//验证已部署流程定义
		 System.out.println("流程部署ID:"+ deployment.getId());
		 System.out.println("流程部署Name:"+deployment.getName());
		
	}
	
	
	/**
	 * 启动流程实例
	 */
	@Test
	public void start(){
		
	    // 启动并获取流程实例
	    ProcessInstance processInstance= engine.getRuntimeService() // 运行时流程实例Service
	        .startProcessInstanceByKey("helloword"); // 流程定义表的KEY字段值
	    System.out.println("流程实例ID:"+processInstance.getId());
	    System.out.println("流程定义ID:"+processInstance.getProcessDefinitionId());
	}

 

    流程定义xml如下：

 

 

<?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="helloword" name="helloword process" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <endEvent id="endevent1" name="End"></endEvent>
    <userTask id="usertask1" name="HelloWorld" activiti:assignee="feng"></userTask>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
    <sequenceFlow id="flow2" sourceRef="usertask1" targetRef="endevent1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_myFirstProcess">
    <bpmndi:BPMNPlane bpmnElement="myFirstProcess" id="BPMNPlane_myFirstProcess">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="200.0" y="40.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="200.0" y="200.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
        <omgdc:Bounds height="55.0" width="105.0" x="165.0" y="110.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="217.0" y="75.0"></omgdi:waypoint>
        <omgdi:waypoint x="217.0" y="110.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="217.0" y="165.0"></omgdi:waypoint>
        <omgdi:waypoint x="217.0" y="200.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

       将流程定义文件名称的bmpn改为 bmpn20即可。