修改bug。新增牛只，超链接

backend/controllers/iotJbqClientController.js

@@ -0,0 +1,197 @@
+/**
+ * 智能耳标客户端控制器
+ * 处理iot_jbq_client表的CRUD操作
+ */
+
+const { sequelize } = require('../config/database-simple')
+
+class IotJbqClientController {
+  /**
+   * 获取所有智能耳标设备
+   */
+  async getAllClients(req, res) {
+    try {
+      const { cid, page = 1, pageSize = 10 } = req.query
+      
+      let whereClause = ''
+      let params = []
+      
+      if (cid) {
+        whereClause = `WHERE cid = '${cid}'`
+      }
+      
+      const offset = (page - 1) * pageSize
+      
+      // 获取总数
+      const [countResult] = await sequelize.query(
+        `SELECT COUNT(*) as total FROM iot_jbq_client ${whereClause}`
+      )
+      
+      // 获取数据
+      const [clients] = await sequelize.query(
+        `SELECT * FROM iot_jbq_client ${whereClause} ORDER BY id DESC LIMIT ${parseInt(pageSize)} OFFSET ${offset}`
+      )
+      
+      res.json({
+        success: true,
+        data: clients,
+        pagination: {
+          current: parseInt(page),
+          pageSize: parseInt(pageSize),
+          total: countResult[0].total
+        },
+        message: '获取智能耳标设备列表成功'
+      })
+    } catch (error) {
+      console.error('获取智能耳标设备列表失败:', error)
+      res.status(500).json({
+        success: false,
+        message: '获取智能耳标设备列表失败',
+        error: error.message
+      })
+    }
+  }
+
+  /**
+   * 根据CID获取智能耳标设备
+   */
+  async getClientByCid(req, res) {
+    try {
+      const { cid } = req.params
+      const [clients] = await sequelize.query(`SELECT * FROM iot_jbq_client WHERE cid = '${cid}'`)
+      
+      if (clients.length === 0) {
+        return res.status(404).json({
+          success: false,
+          message: '智能耳标设备不存在'
+        })
+      }
+
+      res.json({
+        success: true,
+        data: clients[0],
+        message: '获取智能耳标设备成功'
+      })
+    } catch (error) {
+      console.error('获取智能耳标设备失败:', error)
+      res.status(500).json({
+        success: false,
+        message: '获取智能耳标设备失败',
+        error: error.message
+      })
+    }
+  }
+
+  /**
+   * 根据ID获取智能耳标设备
+   */
+  async getClientById(req, res) {
+    try {
+      const { id } = req.params
+      const [clients] = await sequelize.query(`SELECT * FROM iot_jbq_client WHERE id = ${id}`)
+      
+      if (clients.length === 0) {
+        return res.status(404).json({
+          success: false,
+          message: '智能耳标设备不存在'
+        })
+      }
+
+      res.json({
+        success: true,
+        data: clients[0],
+        message: '获取智能耳标设备成功'
+      })
+    } catch (error) {
+      console.error('获取智能耳标设备失败:', error)
+      res.status(500).json({
+        success: false,
+        message: '获取智能耳标设备失败',
+        error: error.message
+      })
+    }
+  }
+
+  /**
+   * 更新智能耳标设备
+   */
+  async updateClient(req, res) {
+    try {
+      const { id } = req.params
+      const updateData = req.body
+
+      // 构建更新字段
+      const updateFields = []
+      
+      Object.keys(updateData).forEach(key => {
+        if (updateData[key] !== undefined) {
+          const value = typeof updateData[key] === 'string' ? `'${updateData[key]}'` : updateData[key]
+          updateFields.push(`${key} = ${value}`)
+        }
+      })
+      
+      if (updateFields.length === 0) {
+        return res.status(400).json({
+          success: false,
+          message: '没有要更新的字段'
+        })
+      }
+      
+      const [result] = await sequelize.query(
+        `UPDATE iot_jbq_client SET ${updateFields.join(', ')} WHERE id = ${id}`
+      )
+
+      if (result.affectedRows === 0) {
+        return res.status(404).json({
+          success: false,
+          message: '智能耳标设备不存在'
+        })
+      }
+
+      res.json({
+        success: true,
+        data: { id: parseInt(id), ...updateData },
+        message: '更新智能耳标设备成功'
+      })
+    } catch (error) {
+      console.error('更新智能耳标设备失败:', error)
+      res.status(500).json({
+        success: false,
+        message: '更新智能耳标设备失败',
+        error: error.message
+      })
+    }
+  }
+
+  /**
+   * 删除智能耳标设备
+   */
+  async deleteClient(req, res) {
+    try {
+      const { id } = req.params
+
+      const [result] = await sequelize.query('DELETE FROM iot_jbq_client WHERE id = ?', [id])
+
+      if (result.affectedRows === 0) {
+        return res.status(404).json({
+          success: false,
+          message: '智能耳标设备不存在'
+        })
+      }
+
+      res.json({
+        success: true,
+        message: '删除智能耳标设备成功'
+      })
+    } catch (error) {
+      console.error('删除智能耳标设备失败:', error)
+      res.status(500).json({
+        success: false,
+        message: '删除智能耳标设备失败',
+        error: error.message
+      })
+    }
+  }
+}
+
+module.exports = new IotJbqClientController()