Activiti7的api查询（实时更新）

1   默认创建方式
将activiti.cfg.xml文件名及路径固定，
且activiti.cfg.xml文件中有 processEngineConfiguration的配置， 
可以使用如下代码创建processEngine:


//直接使用工具类 ProcessEngines，使用classpath下的activiti.cfg.xml中的配置创建processEngine
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
System.out.println(processEngine);

2 一般创建方式


//先构建ProcessEngineConfiguration
ProcessEngineConfiguration configuration = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml");
//通过ProcessEngineConfiguration创建ProcessEngine，此时会创建数据库
ProcessEngine processEngine = configuration.buildProcessEngine();

//      获取引擎
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        HistoryService historyService = processEngine.getHistoryService();

//        创建历史任务实例对象
        HistoricTaskInstanceQuery historicTaskInstanceQuery = historyService.createHistoricTaskInstanceQuery();

 HistoricTaskInstanceQuery qingjia1 = historicTaskInstanceQuery.processDefinitionKey("qingjia");

        HistoricTaskInstanceQuery qingjia1 = historicTaskInstanceQuery.taskAssignee(id + "");

        HistoricTaskInstanceQuery qingjia1 = historicTaskInstanceQuery.taskNameLike("%审批%");

  List<HistoricTaskInstance> historicTaskInstances = historicTaskInstanceQuery.listPage(page, rows);

HistoricTaskInstanceQuery finished = 
historicTaskInstanceQuery.finished();

        List<HistoricTaskInstance> historicTaskInstances = historicTaskInstanceQuery.orderByHistoricTaskInstanceEndTime().asc().listPage(page, rows);

  //            查询历史流程实例对象
        HistoricProcessInstanceQuery hisquery = processEngine.getHistoryService().createHistoricProcessInstanceQuery();

HistoricProcessInstanceQuery qingjia3 = hisquery.processDefinitionKey("qingjia");

//        根据流程定义id，流程BusinessKey的业务值，获取当前业务单的审批流程
        HistoricProcessInstanceQuery qingjia3 = hisquery.processInstanceBusinessKey(id + "");

        List<HistoricProcessInstance> qingjia2 = hisquery.processDefinitionKey("qingjia").processInstanceBusinessKey(id + "").list();

  for(HistoricProcessInstance item: qingjia2){
//                getEndActivityId   判断当前流程实例是否完成，如果没有完成，不能创建
                if(item.getEndActivityId() == null){
                    System.out.println("不能重复提交申请单");
                }
            }

            HistoricActivityInstanceQuery historicActivityInstanceQuery = historyService.createHistoricActivityInstanceQuery();

 HistoricActivityInstanceQuery historicActivityInstanceQuery = historyService.createHistoricActivityInstanceQuery().activityId(endActivityId);

//            根据最后节点的id，获取任务   ,其实只有一个，但是这里使用了list，是没有找到获取单个的方法
            List<HistoricActivityInstance> list1 = historyService.createHistoricActivityInstanceQuery().activityId(endActivityId).list();
            HistoricActivityInstance historicActivityInstance = list1.get(0);

  String activityName = historicActivityInstance.getActivityName();//获取最后节点的名称

//        获取processEngine
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
//        获取repositoryService
        RepositoryService repositoryService = processEngine.getRepositoryService();

DeploymentQuery deploymentQuery = repositoryService.createDeploymentQuery();

  List<Deployment> list = repositoryService.createDeploymentQuery().list();
   for(Deployment dep : list){
            System.out.println("Id："+dep.getId());
            System.out.println("Name："+dep.getName());
            System.out.println("DeploymentTime："+dep.getDeploymentTime());
            System.out.println("Key："+dep.getKey());
        }

ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();

  List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery()
                .list();

//        1、得到ProcessEngine
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
//        2、得到RunTimeService
        RuntimeService runtimeService = processEngine.getRuntimeService();

 //初始化流程实例
    @Test
    public void initProcessInstance(){
        //1、获取页面表单填报的内容，请假时间，请假事由，String fromData
        //2、fromData 写入业务表，返回业务表主键ID==businessKey
        //3、把业务数据与Activiti7流程数据关联
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("myProcess_claim","bKey002");
        System.out.println("流程实例ID："+processInstance.getProcessDefinitionId());

    }

        ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery();

 List<ProcessInstance> list = runtimeService.createProcessInstanceQuery().list();

runtimeService.suspendProcessInstanceById("73f0fb9a-ce5b-11ea-bf67-dcfb4875e032");

 runtimeService.activateProcessInstanceById("73f0fb9a-ce5b-11ea-bf67-dcfb4875e032");

//删除流程实例
    @Test
    public void delProcessInstance(){
        runtimeService.deleteProcessInstance("45b8b797-ba0c-11ec-8af3-e02be94c81b8","删着玩");
        System.out.println("删除流程实例");
    }

//        获取引擎
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
//        获取操作任务的服务 TaskService
        TaskService taskService = processEngine.getTaskService();

TaskQuery taskQuery = taskService.createTaskQuery();

        //根据任务id查询任务表
        TaskQuery taskQuery1 = taskQuery.taskId(taskid + "");

Task task = taskQuery1.singleResult();

//        获取当前任务的  处理人
        String assignee = task.getAssignee();

//  设置审批意见的审批人,  这个必须写
        Authentication.setAuthenticatedUserId(userid+"");
//        添加审批意见
taskService.addComment(taskid+"",task.getProcessInstanceId(),comment);;

        Map<String, Object> map = new HashMap<String, Object>();
        map.put("agree",agree);


taskService.complete(taskid+"",map);

    //拾取任务
    @Test
    public void claimTask(){
        Task task = taskService.createTaskQuery().taskId("f5c87a6e-ba27-11ec-89da-e02be94c81b8").singleResult();
        taskService.claim("f5c87a6e-ba27-11ec-89da-e02be94c81b8","wukong");
    }

//归还与交办任务
    @Test
    public void setTaskAssignee(){
        Task task = taskService.createTaskQuery().taskId("f5c87a6e-ba27-11ec-89da-e02be94c81b8").singleResult();
        //归还候选任务
        taskService.setAssignee("f5c87a6e-ba27-11ec-89da-e02be94c81b8",null);
        //交办,其实就是设置执行人
//        taskService.setAssignee("f5c87a6e-ba27-11ec-89da-e02be94c81b8","wukong");
    }