表单约等于流程变量。StartEvent 有一个Form属性，用于关联流程中涉及到的业务数据。

一：内置表单

每个节点都可以有不同的表单属性。

1.1 获取开始节点对应的表单

@Autowired
private FormService formService;@Test
void delopyProcess() {ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();Deployment deploy = processEngine.getRepositoryService().createDeployment().addClasspathResource("processes/LeaveProcess.bpmn").name("表单请假流程").deploy();
}@Test
void getStartFormData() {String processDefinitionId = "LeaveProcess:1:7504";StartFormData startFormData = formService.getStartFormData(processDefinitionId);List<FormProperty> formProperties = startFormData.getFormProperties();for (FormProperty formProperty : formProperties) {System.out.println(formProperty.getId() + ":" + formProperty.getType() + " "+ formProperty.getName() + ":" + formProperty.getValue());}
}

1.2 启动流程实例

@Test
void startProcess() {// 传统方式Map<String, Object> variables = new HashMap<>();variables.put("startTime", "2023-11-11 09:00:00");variables.put("endTime", "2024-11-11 09:00:00");variables.put("reason", "世界那么大，我想去看看");runtimeService.startProcessInstanceByKey("LeaveProcess", variables);
}@Test
void startProcess2() {// 表单方式，都是保存到ACT_RU_VARIABLE，不同的是对于对变量的数据类型的处理。// form表单对应的变量都是String类型，并且日期会作为long类型存储。Map<String, String> variables = new HashMap<>();variables.put("startTime", "2022-11-11 09:00:00");variables.put("endTime", "2023-11-10 09:00:00");variables.put("reason", "活着不是为了工作，工作是为了活得更有意义");formService.submitStartFormData("LeaveProcess:1:7504", variables);
}

二：外部表单