09【掌握】流程实例、任务的执行

1.流程图

image.png

2.部署流程定义

/**
     * 流程部署
     * 使用addClasspathResource
     */
    @Test
    public void deployProcessDefinition() {
        RepositoryService repositoryService = processEngine.getRepositoryService();
        Deployment deploy = repositoryService.createDeployment().addClasspathResource("HelloWorld.bpmn")
        .addClasspathResource("HelloWorld.png")
        .name("请假流程004")
        .deploy();
        System.out.println("部署成功:流程部署ID:"+deploy.getId()+" 流程部署名称："+deploy.getName());
    }

3.启动流程

/**
     * 启动流程
     */
    @Test
    public void startProcess() {
        //1,得到启动流程的service
        RuntimeService runtimeService = this.processEngine.getRuntimeService();
//      String processDefinitionId="HelloWorld:1:4";
//      runtimeService.startProcessInstanceById(processDefinitionId);
        String processDefinitionKey="HelloWorld";
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(processDefinitionKey);//启动的永远是最新版本的流程
        System.out.println("流程启动成功");
        System.out.println("部署ID:"+processInstance.getDeploymentId());//指act_re_deployment的id
        System.out.println("流程定义ID:"+processInstance.getProcessDefinitionId());//act_re_procdef里面的id
        System.out.println("流程实例ID:"+processInstance.getId());//act_ru_execution这个表里面的id
    }

4.查询个人任务

//4，查询个人任务
    @Test
    public void queryMyPersonTask() {
        TaskService taskService = this.processEngine.getTaskService();
        String assignee="张三";
        List<Task> list = taskService.createTaskQuery()
                //条件
                .taskAssignee(assignee) //根据任务的办理人查询
//              .deploymentId(deploymentId)根据部署ID查询任务
//              .deploymentIdIn(deploymentIds)根据部署ID的集合查询
//              .executionId(executionId)根据执行实例查询
//              .processInstanceId(processInstanceId)//根据流程实例ID查询
//              .processInstanceBusinessKey(processInstanceBusinessKey)//根据业务ID查询
//              .processDefinitionId(processDefinitionId)//根据流程定义ID查询
//              .processDefinitionKey(processDefinitionKey)根据流程定义的KEY查询
//              .processDefinitionKeyIn(processDefinitionKeys)
//              .processDefinitionKeyLike(processDefinitionKeyLike)
//              .processDefinitionKeyLikeIgnoreCase(processDefinitionKeyLikeIgnoreCase)
//              .processDefinitionName(processDefinitionName)
                //排序
//              .orderByExecutionId()
//              .orderByProcessDefinitionId()
//              .orderByProcessInstanceId()
                //结果集
                .list();
        for (Task task : list) {
            System.out.println("任务ID:"+task.getId());
            System.out.println("执行实例ID:"+task.getExecutionId());
            System.out.println("流程实例ID:"+task.getProcessInstanceId());
            System.out.println("任务名称:"+task.getName());
            System.out.println("任务定义的Key:"+task.getTaskDefinitionKey());
            System.out.println("任务办理人:"+task.getAssignee());
            System.out.println("#####################");
        }
    }

5.办理任务

//  5，办理任务方式1  已知任务ID 2505
    @Test
    public void completeTask() {
        String taskId="2505";
        TaskService taskService = this.processEngine.getTaskService();
        taskService.complete(taskId); //直接完成任务
//      taskService.complete(taskId, variables);//完成任务并设置流程变量
        System.out.println("任务完成成功");
    }

6.查询流程状态（判断流程正在执行，还是结束）

//  6，查询流程状态（判断流程正在执行，还是结束）
    @Test
    public void isProcessOver() {
        //1,已知流程实例ID
        RuntimeService runtimeService = this.processEngine.getRuntimeService();
        String processInstanceId="2501";
        ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
        if(null!=processInstance) {
            System.out.println("流程没有结束");
        }else {
            System.out.println("流程已结束");
        }
        
        
        //2,已知执行实例ID
        String executionId="5002";
        Execution execution = runtimeService.createExecutionQuery().executionId(executionId).singleResult();
        if(null!=execution) {
            System.out.println("流程没有结束");
        }else {
            System.out.println("流程已结束");
        }
        //3,已知任务ID
        String taskId="5005";
        TaskService taskService = this.processEngine.getTaskService();
        Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
        String processInstanceId2 = task.getProcessInstanceId();
        String executionId2 = task.getExecutionId();
        //可以使用上面的两种方法再去查询
        
    }

7.附加功能，查询历史任务act_hi_taskinst

//  7，附加功能，查询历史任务 act_hi_taskinst
    @Test
    public void queryHistoryTask() {
        HistoryService historyService = this.processEngine.getHistoryService();
        
        List<HistoricTaskInstance> list = historyService.createHistoricTaskInstanceQuery().list();
        
        for (HistoricTaskInstance hti : list) {
            System.out.println("任务ID:"+hti.getId());
            System.out.println("办理人:"+hti.getAssignee());
            System.out.println("执行实例ID:"+hti.getExecutionId());
            System.out.println("流程实例ID:"+hti.getProcessInstanceId());
            System.out.println("流程定义ID:"+hti.getProcessDefinitionId());
            System.out.println("任务名称 :"+hti.getName());
            System.out.println("任务定义的key:"+hti.getTaskDefinitionKey());
            System.out.println("任务开始时间:"+hti.getStartTime());
            System.out.println("任务办结时间:"+hti.getEndTime());
            System.out.println("任务耗时:"+hti.getDurationInMillis());
            System.out.println("#########################");
        }
    }

8.附加功能，查询历史流程实例

//  8，附加功能，查询历史流程实例
    @Test
    public void queryHistoryProcessInstance() {
        HistoryService historyService = this.processEngine.getHistoryService();
        
        List<HistoricProcessInstance> list = historyService.createHistoricProcessInstanceQuery().list();
        
        for (HistoricProcessInstance hti : list) {
            System.out.println("流程实例ID:"+hti.getId());
            System.out.println("流程定义ID:"+hti.getProcessDefinitionId());
            System.out.println("任务名称 :"+hti.getName());
            System.out.println("流程启动时间:"+hti.getStartTime());
            System.out.println("流程结束时间:"+hti.getEndTime());
            System.out.println("整个流程耗时耗时:"+hti.getDurationInMillis());
            System.out.println("#########################");
        }
    }