低代码与 AI 的深度融合：OneCode3.0 引领企业级应用开发新范式

┌─────────────────────────────────────────────────────────┐
│                     应用层 (插件生态)                    │
├─────────────────────────────────────────────────────────┤
│  会话管理  │  数据操作  │  事件处理  │  AI能力  │ 扩展点  │
├─────────────────────────────────────────────────────────┤
│                     核心框架层                          │
│  ┌──────────┐  ┌──────────┐  ┌──────────┐  ┌──────────┐ │
│  │ DSM引擎  │  │Spring容器│   │ 自治UI   │  │ AI工具集 │
│  └──────────┘  └──────────┘  └──────────┘  └──────────┘ │
├─────────────────────────────────────────────────────────┤
│                     微内核层                            │
└─────────────────────────────────────────────────────────┘

// 业务文档导入与解析
@TreeAnnotation(
    treeId = "salesOrderDomainTree",
    bindService = SalesDomainService.class,
    customMenu = {GridMenu.IMPORT, GridMenu.EXPORT}
)

public class SalesOrderDomain {
    // 基于业务文档自动生成的核心领域概念
    @ChildTreeAnnotation(
      
        bindService = OrderAggregateService.class
    )
    private OrderAggregate orderAggregate;
    
    @CustomAnnotation(
        id = "businessRules",
        caption = "核心业务规则",
        inputType = ComboInputType.TEXTAREA,
        maxLength = 2000
    )
    private String businessRules;
    
   
}

@TreeAnnotation(
    treeId = "orderAggregate",
 
    bindService = OrderAggregateService.class,
    customMenu = {GridMenu.ADD, GridMenu.EDIT, GridMenu.DELETE}
)
public class OrderAggregate {
    @CustomAnnotation(
        id = "orderId",
        caption = "订单ID",
        inputType = ComboInputType.ID,
        primaryKey = true
    )
    private String orderId;
    
    @CustomAnnotation(
        id = "orderInfo",
        caption = "订单信息",
        inputType = ComboInputType.SUBFORM,
        subFormId = "orderInfoForm"
    )
    private OrderInfo orderInfo;
    
    @ChildTreeAnnotation(
        treeId = "orderItemTree",
        parentKey = "orderId",
        childKey = "itemId",
        bindService = OrderItemService.class
    )
    private List<OrderItem> items;
    
    @MethodChinaName("计算订单状态")
    @WorkflowStep(
        stepId = "calc_order_status",
        name = "订单状态计算",
        formId = "orderStatusForm"
    )
    public String calculateStatus() {
        // 领域逻辑实现
        return orderService.evaluateStatus(this.items, this.paymentStatus);
    }
}

@ModelChangeAnnotation(
    modelId = "salesOrderModel",
    version = "2.1",
    changeType = ChangeType.STRUCTURE
)
@APIEventAnnotation(
    module = "order",
    bindAction = CustomAction.ANALYZE_IMPACT
)
public class ModelChangeReport {
    @CustomAnnotation(
        id = "changeContent",
        caption = "变更内容",
        inputType = ComboInputType.TEXTAREA
    )
    private String changeContent;
    
    @CustomAnnotation(
        id = "affectedModules",
        caption = "受影响模块",
        inputType = ComboInputType.MULTISELECT,
        dataSource = "module_list"
    )
    private List<String> affectedModules;
    
    @CustomAnnotation(
        id = "testCases",
        caption = "自动化测试用例",
        inputType = ComboInputType.TABLE,
        bindTable = "auto_test_cases"
    )
    private List<TestCase> testCases;
}

@FormAnnotation(
    formId = "orderForm",
    caption = "订单表单",
    mode = FormLayModeType.EDIT,
    col = 2,
    row = 5,
    bindService = OrderFormService.class
)
@APIEventAnnotation(
    module = "order",
    businessType = "order_form",
    bindFormEvent = CustomFormEvent.FORM_SUBMIT
)
public class OrderForm {
    @CustomAnnotation(
        id = "orderNo",
        caption = "订单编号",
        inputType = ComboInputType.TEXT,
        required = true
    )
    private String orderNo;
    
    @CustomAnnotation(
        id = "orderDate",
        caption = "订单日期",
        inputType = ComboInputType.DATE,
        defaultValue = "sysdate"
    )
    private String orderDate;
    
    @CustomAnnotation(
        id = "customerName",
        caption = "客户名称",
        inputType = ComboInputType.TEXT,
        required = true
    )
    private String customerName;
    
    // 业务逻辑代码
    @MethodChinaName("表单验证")
    @ValidateMethodAnnotation(
        formId = "orderForm",
        validateMode = ValidateMode.BEFORE_SUBMIT
    )
    public ValidateResult validateForm() {
        ValidateResult result = new ValidateResult();
        if (StringUtils.isEmpty(orderNo)) {
            result.addError("orderNo", "订单编号不能为空");
        }
        if (orderDate == null) {
            result.addError("orderDate", "请选择订单日期");
        }
        return result;
    }
}

// AI生成的原生代码
public class AIOrderService {
    public void createOrder(String orderNo, BigDecimal amount) {
        // 业务逻辑
        jdbcTemplate.update("insert into t_order values(?,?)", orderNo, amount);
    }
}

// MCP服务转换后的低代码兼容代码
@Service
@ServiceComponentAnnotation(
    componentId = "orderService",
    version = "1.0",
    module = "order",
    dependsOn = {"jdbcService", "eventService"}
)
public class OrderService {
    
    @Autowired
    private JdbcService jdbcService;
    
    @Autowired
    private EventPublishService eventService;
    
    @MethodChinaName("创建订单")
    @TransactionalAnnotation(
        propagation = Propagation.REQUIRED,
        rollbackFor = Exception.class
    )
    @APIAnnotation(
        apiId = "createOrder",
        method = HttpMethod.POST,
        path = "/api/v1/orders",
        auth = true
    )
    public void createOrder(
        @ParamAnnotation(
            name = "orderNo",
            caption = "订单编号",
            required = true,
            maxLength = 50
        ) String orderNo,
        @ParamAnnotation(
            name = "amount",
            caption = "订单金额",
            required = true,
            dataType = "decimal(18,2)"
        ) BigDecimal amount
    ) {
        // 保留AI生成的核心逻辑
        jdbcService.update("insert into t_order values(?,?)", orderNo, amount);
        // 自动添加低代码平台能力
        eventService.publish("ORDER_CREATED", new OrderEvent(orderNo, amount));
    }
}

// 自然语言转换的表单配置（系统自动生成）
@FormAnnotation(
    formId = "equipmentInspectionForm",
    caption = "设备巡检记录",
    mode = FormLayModeType.ADD,
    col = 1,
    generateSource = "natural_language",
    version = "1.0"
)

public class InspectionForm {
    @CustomAnnotation(
        id = "deviceNo",
        caption = "设备编号",
        inputType = ComboInputType.TEXT,
        required = true,
        placeholder = "请输入设备编号"
    )
    private String deviceNo;
    
    @CustomAnnotation(
        id = "checkDate",
        caption = "巡检日期",
        inputType = ComboInputType.DATE,
        defaultValue = "today",
        required = true
    )
    private String checkDate;
    
    @CustomAnnotation(
        id = "inspector",
        caption = "巡检人员",

        required = true
    )
    private String inspector;
    
    @CustomAnnotation(
        id = "problemDesc",
        caption = "问题描述",
    
        rows = 4,
        maxLength = 500
    )
    private String problemDesc;
    
    @CustomAnnotation(
        id = "status",
        caption = "处理状态",
  
        options = {"未处理", "处理中", "已解决"},
        defaultValue = "未处理"
    )
    private String status;
}