002.camunda入門（一個流程的欣賞）

目標(biāo)

創(chuàng)建一個大眾流程（請假流程）并且可以跑起來。

需要的預(yù)備知識

camunda數(shù)據(jù)庫表的基本認(rèn)識 表介紹鏈接

流程圖的制作

  1. 下載camunda的繪圖工具 流程圖工具地址

  2. 繪制請假流程圖（XML去掉了布局元素）


    請假流程圖.png
<?xml version="1.0" encoding="UTF-8"?>
<bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camunda="http://camunda.org/schema/1.0/bpmn" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_0vl15c1" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="4.2.0">
  <bpmn:process id="Process_007jh58" isExecutable="true">
    <bpmn:startEvent id="StartEvent_1">
      <bpmn:outgoing>Flow_1l7o4ts</bpmn:outgoing>
    </bpmn:startEvent>
    <bpmn:sequenceFlow id="Flow_1l7o4ts" sourceRef="StartEvent_1" targetRef="Activity_1almw37" />
    <bpmn:exclusiveGateway id="Gateway_1l7w1cq">
      <bpmn:incoming>Flow_05ef0ej</bpmn:incoming>
      <bpmn:outgoing>Flow_16oi0x8</bpmn:outgoing>
      <bpmn:outgoing>Flow_1yq2gkb</bpmn:outgoing>
    </bpmn:exclusiveGateway>
    <bpmn:sequenceFlow id="Flow_16oi0x8" name="小于等于7天" sourceRef="Gateway_1l7w1cq" targetRef="Activity_0kms1lj">
      <bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">${ts &lt;= 7}</bpmn:conditionExpression>
    </bpmn:sequenceFlow>
    <bpmn:sequenceFlow id="Flow_1yq2gkb" name="大于七天" sourceRef="Gateway_1l7w1cq" targetRef="Activity_0uw0hfc">
      <bpmn:conditionExpression xsi:type="bpmn:tFormalExpression">${ts &gt; 7}</bpmn:conditionExpression>
    </bpmn:sequenceFlow>
    <bpmn:exclusiveGateway id="Gateway_1sx3v29">
      <bpmn:incoming>Flow_0808fzz</bpmn:incoming>
      <bpmn:incoming>Flow_0y6yarx</bpmn:incoming>
      <bpmn:outgoing>Flow_122u7os</bpmn:outgoing>
    </bpmn:exclusiveGateway>
    <bpmn:sequenceFlow id="Flow_0808fzz" sourceRef="Activity_0kms1lj" targetRef="Gateway_1sx3v29" />
    <bpmn:sequenceFlow id="Flow_0y6yarx" sourceRef="Activity_0uw0hfc" targetRef="Gateway_1sx3v29" />
    <bpmn:userTask id="Activity_1almw37" name="申請人" camunda:assignee="sqr">
      <bpmn:incoming>Flow_1l7o4ts</bpmn:incoming>
      <bpmn:outgoing>Flow_15p6u4g</bpmn:outgoing>
    </bpmn:userTask>
    <bpmn:sequenceFlow id="Flow_15p6u4g" sourceRef="Activity_1almw37" targetRef="Activity_1wm4vx9" />
    <bpmn:sequenceFlow id="Flow_05ef0ej" sourceRef="Activity_1wm4vx9" targetRef="Gateway_1l7w1cq" />
    <bpmn:sequenceFlow id="Flow_122u7os" sourceRef="Gateway_1sx3v29" targetRef="Activity_01orex7" />
    <bpmn:endEvent id="Event_0cuwhfb">
      <bpmn:incoming>Flow_0zfntyp</bpmn:incoming>
    </bpmn:endEvent>
    <bpmn:sequenceFlow id="Flow_0zfntyp" sourceRef="Activity_01orex7" targetRef="Event_0cuwhfb" />
    <bpmn:userTask id="Activity_1wm4vx9" name="申請人上級" camunda:assignee="sjld">
      <bpmn:incoming>Flow_15p6u4g</bpmn:incoming>
      <bpmn:outgoing>Flow_05ef0ej</bpmn:outgoing>
    </bpmn:userTask>
    <bpmn:userTask id="Activity_0kms1lj" name="人事經(jīng)理" camunda:assignee="rsjl">
      <bpmn:incoming>Flow_16oi0x8</bpmn:incoming>
      <bpmn:outgoing>Flow_0808fzz</bpmn:outgoing>
    </bpmn:userTask>
    <bpmn:userTask id="Activity_0uw0hfc" name="人事總監(jiān)" camunda:assignee="rszj">
      <bpmn:incoming>Flow_1yq2gkb</bpmn:incoming>
      <bpmn:outgoing>Flow_0y6yarx</bpmn:outgoing>
    </bpmn:userTask>
    <bpmn:userTask id="Activity_01orex7" name="歸檔" camunda:assignee="sqr">
      <bpmn:incoming>Flow_122u7os</bpmn:incoming>
      <bpmn:outgoing>Flow_0zfntyp</bpmn:outgoing>
    </bpmn:userTask>
  </bpmn:process>
</bpmn:definitions>

流程的部署

  1. 復(fù)制如上的流程圖xml信息到classpath目錄下
  2. 部署流程
    /**
     * 部署bpmn。xml資源文件
     */
    public void bpmnImport() {
        Deployment deploy = repositoryService
                .createDeployment()
               // .name("請假申請")
                .addClasspathResource("diagram_1.bpmn")
                .deploy();
        log.info(deploy.getName());
        log.info(deploy.getId());
    }

運行后如下表會一些基本信息


運行后結(jié)果-未設(shè)置name.png
運行后結(jié)果-設(shè)置name.png

流程的運行

    /**
     * 開始一個流程實例
     */
    public void startBpm(String proInsId) {
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(proInsId);
        String id = processInstance.getId();
        log.info(id);
    }
流程運行結(jié)果.png

流程的審批

 /**
     * 完成一個任務(wù) 不帶參數(shù)
     * @param taskId
     */
    public void comTask(String taskId) {
       taskService.complete(taskId);
    }
運行結(jié)果
 /**
     * 完成一個任務(wù)， 并且可以設(shè)置變量參數(shù)
     * @param taskId
     */
    public void comTask(String taskId, Map map) {
        taskService.complete(taskId, map);
    }
帶參數(shù)測試結(jié)果

結(jié)束語

至此一個簡單固定的流程就可以成功完成！

示例代碼

服務(wù)代碼

@Slf4j
@Service
public class ResService {

    @Autowired
    private RepositoryService repositoryService;
    @Autowired
    private RuntimeService runtimeService;
    @Autowired
    private TaskService taskService;

    /**
     * 部署bpmn。xml資源文件
     */
    public void bpmnImport() {
        Deployment deploy = repositoryService
                .createDeployment()
                .name("請假申請")
                .addClasspathResource("diagram_1.bpmn")
                .deploy();
        log.info(deploy.getName());
        log.info(deploy.getId());
    }
    /**
     * 開始一個流程實例
     */
    public void startBpm(String proInsId) {
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(proInsId);
        String id = processInstance.getId();
        log.info(id);
    }
    /**
     * 完成一個任務(wù) 不帶參數(shù)
     * @param taskId
     */
    public void comTask(String taskId) {
       taskService.complete(taskId);
    }
    /**
     * 完成一個任務(wù)， 并且可以設(shè)置變量參數(shù)
     * @param taskId
     */
    public void comTask(String taskId, Map map) {
        taskService.complete(taskId, map);
    }
}

測試類代碼

@RunWith(SpringRunner.class)
@SpringBootTest
class ResServiceTest {

    @Autowired
    private ResService resService;

    /**
     * 測試導(dǎo)入classpath下的bpmn資源
     */
    @Test
    void bpmnImport() {
        resService.bpmnImport();
    }

    /**
     * 開始一個流程實例， xml標(biāo)簽內(nèi)的bpmn:process id="Process_007jh58"
     */
    @Test
    void startBpm() {
        resService.startBpm("Process_007jh58");
    }

    /**
     * 完成一個任務(wù)
     */
    @Test
    void comTask() {
        resService.comTask("f4bc7a2a-0a0c-11eb-9b55-c81f66132ec7");
    }

    /**
     * 完成一個任務(wù)， 帶參數(shù)比如此流程的分叉需要判斷請假天數(shù)， 我們需要傳入當(dāng)前的變量天數(shù)
     */
    @Test
    void comTask1() {
        Map map = new HashMap();
        map.put("ts", 8);
        resService.comTask("5cbe9b2b-0a0d-11eb-9439-c81f66132ec7", map);
    }
}
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