Flowable：关于流程部署、启动、处理、完成各模块的浅析（图解）（三）

// 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");
}

ProcessEngine processEngine = cfg.buildProcessEngine();
TaskService taskService = processEngine.getTaskService();
Task task = taskService.createTaskQuery()
    .processDefinitionId("holiday:1:4")
    .taskAssignee("lisi")
    .singleResult();
// 添加流程变量
Map<String,Object> variables = new HashMap<>();
variables.put("approved",false); // 拒绝请假
// 完成任务
taskService.complete(task.getId(),variables);