feat(设备管理): 实现设备ID自动生成功能

- 修改后端验证逻辑，允许设备ID为空或null
- 添加自动生成设备ID功能，格式为DEV+三位数字
- 前端移除设备ID必填校验并隐藏该字段
- 更新设备导入逻辑，支持自动生成设备ID

backend/routes/devices.js

@@ -88,16 +88,50 @@ router.get('/', validateQuery(queryDeviceSchema), async (req, res) => {
   }
 });
 
+// 生成设备ID的辅助函数
+async function generateDeviceId() {
+  // 获取当前最大的设备ID序号
+  const devices = await Device.findAll({
+    where: {
+      deviceId: {
+        [require('sequelize').Op.like]: 'DEV%'
+      }
+    }
+  });
+  
+  let maxNumber = 0;
+  devices.forEach(device => {
+    const match = device.deviceId.match(/^DEV(\d+)$/);
+    if (match) {
+      const num = parseInt(match[1], 10);
+      if (num > maxNumber) {
+        maxNumber = num;
+      }
+    }
+  });
+  
+  // 生成新的设备ID，序号+1，至少3位数字
+  const newNumber = maxNumber + 1;
+  return `DEV${String(newNumber).padStart(3, '0')}`;
+}
+
 // 创建设备
 router.post('/', validateBody(createDeviceSchema), async (req, res) => {
   try {
-    const device = await Device.create(req.body);
+    const deviceData = { ...req.body };
+    
+    // 如果没有提供deviceId或为空，则自动生成
+    if (!deviceData.deviceId || deviceData.deviceId.trim() === '') {
+      deviceData.deviceId = await generateDeviceId();
+    }
+    
+    const device = await Device.create(deviceData);
     
     // 更新机柜当前功率
-    const rack = await Rack.findByPk(req.body.rackId);
+    const rack = await Rack.findByPk(deviceData.rackId);
     if (rack) {
       await rack.update({
-        currentPower: rack.currentPower + req.body.powerConsumption
+        currentPower: rack.currentPower + deviceData.powerConsumption
       });
     }
     
@@ -513,16 +547,38 @@ router.post('/import', async (req, res) => {
           throw new Error(`设备类型无效，有效值为：${validTypes.join('、')}，当前值：${deviceType}`);
         }
         
-        // 验证设备ID是否已存在
-        const deviceId = getFieldValue('deviceId');
-        if (!deviceId) {
-          throw new Error('设备ID不能为空');
-        }
-        const existingDeviceById = await Device.findOne({
-          where: { deviceId: deviceId }
-        });
-        if (existingDeviceById) {
-          throw new Error(`设备ID已存在：${deviceId}`);
+        // 处理设备ID：如果为空则自动生成
+        let deviceId = getFieldValue('deviceId');
+        if (!deviceId || deviceId.trim() === '') {
+          // 自动生成设备ID
+          const allDevices = await Device.findAll({
+            where: {
+              deviceId: {
+                [require('sequelize').Op.like]: 'DEV%'
+              }
+            }
+          });
+          
+          let maxNumber = 0;
+          allDevices.forEach(device => {
+            const match = device.deviceId.match(/^DEV(\d+)$/);
+            if (match) {
+              const num = parseInt(match[1], 10);
+              if (num > maxNumber) {
+                maxNumber = num;
+              }
+            }
+          });
+          
+          deviceId = `DEV${String(maxNumber + 1).padStart(3, '0')}`;
+        } else {
+          // 验证设备ID是否已存在
+          const existingDeviceById = await Device.findOne({
+            where: { deviceId: deviceId }
+          });
+          if (existingDeviceById) {
+            throw new Error(`设备ID已存在：${deviceId}`);
+          }
         }
         
         // 验证序列号是否已存在

backend/validation/deviceSchema.js

@@ -9,14 +9,12 @@ const DEVICE_STATUS = ['running', 'maintenance', 'offline', 'fault'];
 // 创建设备验证Schema
 const createDeviceSchema = Joi.object({
   deviceId: Joi.string()
-    .required()
     .max(50)
     .pattern(/^[a-zA-Z0-9_-]+$/)
+    .allow('', null)
     .messages({
-      'string.empty': '设备ID不能为空',
       'string.max': '设备ID不能超过50个字符',
-      'string.pattern.base': '设备ID只能包含字母、数字、下划线和横线',
-      'any.required': '设备ID是必填字段'
+      'string.pattern.base': '设备ID只能包含字母、数字、下划线和横线'
     }),
 
   name: Joi.string()

frontend/src/pages/DeviceManagement.jsx

@@ -167,7 +167,7 @@ const formatDate = (date, fieldName) => {
 
 // 默认设备字段配置
 const defaultDeviceFields = [
-  { fieldName: 'deviceId', displayName: '设备ID', fieldType: 'string', required: true, order: 1, visible: true },
+  { fieldName: 'deviceId', displayName: '设备ID', fieldType: 'string', required: false, order: 1, visible: false },
   { fieldName: 'name', displayName: '设备名称', fieldType: 'string', required: true, order: 2, visible: true },
   { fieldName: 'type', displayName: '设备类型', fieldType: 'select', required: true, order: 3, visible: true, 
     options: [{ value: 'server', label: '服务器' }, { value: 'switch', label: '交换机' }, { value: 'router', label: '路由器' }, { value: 'storage', label: '存储设备' }, { value: 'other', label: '其他设备' }] },
@@ -1770,7 +1770,7 @@ function DeviceManagement() {
           layout="vertical"
           onFinish={handleSubmit}
         >
-          {deviceFields.map(field => {
+          {deviceFields.filter(field => field.fieldName !== 'deviceId').map(field => {
             let control = null;
             
             switch (field.fieldType) {
@@ -1822,7 +1822,7 @@ function DeviceManagement() {
                 key={field.fieldName}
                 name={field.fieldName}
                 label={field.displayName}
-                rules={field.required ? [{ required: true, message: `请输入${field.displayName}` }] : []}
+                rules={field.required && field.fieldName !== 'deviceId' ? [{ required: true, message: `请输入${field.displayName}` }] : []}
               >
                 {control}
               </Form.Item>
@@ -1861,7 +1861,7 @@ function DeviceManagement() {
         >
           <div style={{ maxHeight: 400, overflowY: 'auto' }}>
             <div style={{ display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: '12px' }}>
-              {deviceFields.map(field => (
+              {deviceFields.filter(field => field.fieldName !== 'deviceId').map(field => (
                 <Form.Item
                   key={field.fieldName}
                   name={field.fieldName}