java开发Activiti进阶篇流程实例详解

    /**
     * 启动流程实例，添加businessKey
     */
    @Test
    public void test01(){
        // 1.获取ProcessEngine对象
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        // 2.获取RuntimeService对象
        RuntimeService runtimeService = processEngine.getRuntimeService();
        // 3.启动流程实例
        ProcessInstance instance = runtimeService
                .startProcessInstanceByKey("evection", "1001");
        // 4.输出processInstance相关属性
        System.out.println("businessKey = "+instance.getBusinessKey());
    }

    /**
     * 全部流程挂起实例与激活
     */
    @Test
    public void test02(){
       // 1.获取ProcessEngine对象
        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();
        // 2.获取RepositoryService对象
        RepositoryService repositoryService = engine.getRepositoryService();
        // 3.查询流程定义的对象
        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                .processDefinitionKey("evection")
                .singleResult();
        // 4.获取当前流程定义的状态
        boolean suspended = processDefinition.isSuspended();
        String id = processDefinition.getId();
        // 5.如果挂起就激活，如果激活就挂起
        if(suspended){
            // 表示当前定义的流程状态是 挂起的
            repositoryService.activateProcessDefinitionById(
                    id // 流程定义的id
            ,true // 是否激活
            ,null // 激活时间
            );
            System.out.println("流程定义：" + id + ",已激活");
        }else{
            // 非挂起状态，激活状态 那么需要挂起流程定义
            repositoryService.suspendProcessDefinitionById(
                    id // 流程id
                    ,true // 是否挂起
                    ,null // 挂起时间
            );
            System.out.println("流程定义：" + id + ",已挂起");
        }
    }

    /**
     * 单个流程实例挂起与激活
     */
    @Test
    public void test03(){
        // 1.获取ProcessEngine对象
        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();
        // 2.获取RuntimeService
        RuntimeService runtimeService = engine.getRuntimeService();
        // 3.获取流程实例对象
        ProcessInstance processInstance = runtimeService.createProcessInstanceQuery()
                .processInstanceId("25001")
                .singleResult();
        // 4.获取相关的状态操作
        boolean suspended = processInstance.isSuspended();
        String id = processInstance.getId();
        if(suspended){
            // 挂起--》激活
            runtimeService.activateProcessInstanceById(id);
            System.out.println("流程定义：" + id + "，已激活");
        }else{
            // 激活--》挂起
            runtimeService.suspendProcessInstanceById(id);
            System.out.println("流程定义：" + id + "，已挂起");
        }
    }