Activiti工作流--流程定义的相关操作--之四

这里是接着上篇进行往下写的，相关配置的话这里就不重复了，可以参照前面的文章

获取配置连接

private ProcessEngine processEngine;
	
@Before
public void initProcessEngine(){
	processEngine = ProcessEngines.getDefaultProcessEngine();
}

流程的定义和部署

@Test
public void testProcessEngine(){
	/*Deployment deployment = processEngine.getRepositoryService()
								.createDeployment()
								.addClasspathResource("diagram/leave.bpmn")
								.addClasspathResource("diagram/leave.png")
								.name("请假流程")
								.deploy();
	System.out.println("流程部署ID："+deployment.getId());
	System.out.println("流程部署名称："+deployment.getName());*/
	
	//以zip的形式进行加载流程文件,存到数据表中的时候还是会已解压后的文件进行存储,通过类的加载器，将压缩的文件以流的形式进行上传
	InputStream inputStream = this.getClass()
								.getClassLoader()
								.getResourceAsStream("diagram/leave.zip");
	ZipInputStream zipInputStream = new ZipInputStream(inputStream);
	Deployment deployment = processEngine.getRepositoryService()
			.createDeployment()
			.addZipInputStream(zipInputStream)
			.name("请假流程")
			.deploy();
	System.out.println("流程部署ID："+deployment.getId());
	System.out.println("流程部署名称："+deployment.getName());
}

流程图
leave.bpmn代码

<?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="leave" name="leaveProcess" isExecutable="true">
    <startEvent id="startevent1" name="Start"></startEvent>
    <userTask id="usertask1" name="请假申请" activiti:assignee="张三"></userTask>
    <userTask id="usertask2" name="领导审批" activiti:assignee="李四"></userTask>
    <endEvent id="endevent1" name="End"></endEvent>
    <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
    <sequenceFlow id="flow2" sourceRef="usertask1" targetRef="usertask2"></sequenceFlow>
    <sequenceFlow id="flow3" sourceRef="usertask2" targetRef="endevent1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_leave">
    <bpmndi:BPMNPlane bpmnElement="leave" id="BPMNPlane_leave">
      <bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="375.0" y="22.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
        <omgdc:Bounds height="55.0" width="105.0" x="340.0" y="122.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2">
        <omgdc:Bounds height="55.0" width="105.0" x="340.0" y="242.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
        <omgdc:Bounds height="35.0" width="35.0" x="375.0" y="352.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="392.0" y="57.0"></omgdi:waypoint>
        <omgdi:waypoint x="392.0" y="122.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="392.0" y="177.0"></omgdi:waypoint>
        <omgdi:waypoint x="392.0" y="242.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
        <omgdi:waypoint x="392.0" y="297.0"></omgdi:waypoint>
        <omgdi:waypoint x="392.0" y="352.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

流程定义信息的查询

可以加入一些定义的条件进行条件筛选查询

@Test
public void testQueryProcessDefinition(){
	List<ProcessDefinition> processDefinitions = processEngine.getRepositoryService()
													.createProcessDefinitionQuery()
													.processDefinitionId("leave:5:32504")
													.processDefinitionVersion(5)
													.list();
	if (processDefinitions != null && processDefinitions.size() > 0) {
		for (ProcessDefinition processDefinition : processDefinitions) {
			System.out.println("流程定义的ID：" +processDefinition.getId());
			System.out.println("流程定义的名称：" +processDefinition.getName());
			System.out.println("流程定义的key：" +processDefinition.getKey());
			System.out.println("流程定义的版本号：" +processDefinition.getVersion());
			System.out.println("流程定义的图片：" +processDefinition.getDiagramResourceName());
			System.out.println("流程定义的配置：" +processDefinition.getResourceName());
			System.out.println("流程定义的描述：" +processDefinition.getDescription());
			System.out.println("流程定义的种类：" +processDefinition.getCategory());
			System.out.println("流程定义的部署：" +processDefinition.getDeploymentId());
			System.out.println("=================================================");
		}
	}
}

流程定义的删除

删除的方式有两种；一种是普通删除；一种是强制删除；
注意的是：
当流程定义在运行的时候，如果使用的是普通删除，则会抛出异常；如果使用的是强制删除的话，会强行终止流程，强制删除

@Test
public void testDeleteProcessDefinition(){
	//根据deploymentID删除定义的流程，普通删除
	processEngine.getRepositoryService().deleteDeployment("1");
	System.out.println("普通删除--流程定义删除成功");
	//强制删除
	processEngine.getRepositoryService().deleteDeployment("1", true);
	System.out.println("强制删除--流程定义删除成功");
}

根据查询条件获取流程定义信息获取到部署流程的id，根据id去删除流程定义

@Test
public void testDeleteAllProcessDefinition(){
	//将流程定义信息全部查询出来
	List<ProcessDefinition> list = processEngine.getRepositoryService()
								.createProcessDefinitionQuery()
								.deploymentId("32501")
								.list();
	if (list != null && list.size() > 0) {
		for (ProcessDefinition processDefinition : list) {
			String deploymentId = processDefinition.getDeploymentId();
			System.out.println("===="+deploymentId);
			//根据deploymentId进行删除
			processEngine.getRepositoryService().deleteDeployment(deploymentId);
		}
	}
}

获取图片

@Test
public void testViewImage(){
	String deploymentId = "10001";
	List<String> deploymentResourceNames = processEngine.getRepositoryService()
											.getDeploymentResourceNames(deploymentId);
	String imageName = "";
	if (deploymentResourceNames != null && deploymentResourceNames.size() > 0) {
		for (String string : deploymentResourceNames) {
			if (string.indexOf(".png") > 0) {
				imageName = string;
			}
		}
	}
	InputStream resourceAsStream = processEngine.getRepositoryService()
									.getResourceAsStream(deploymentId, imageName);
	File file = new File("F:/Java/activiti/image/"+imageName);
	try {
		FileUtils.copyInputStreamToFile(resourceAsStream, file);
		System.out.println("获取图片成功");
	} catch (IOException e) {
		e.printStackTrace();
	}
}

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