feat: 新增器材管理和课程预约后端接口

src/main/java/edu/situ/stlserver/controller/EnrollmentController.java

@@ -0,0 +1,57 @@
+package edu.situ.stlserver.controller;
+
+import edu.situ.stlserver.model.dto.EnrollmentQueryDTO;
+import edu.situ.stlserver.model.entity.Enrollment;
+import edu.situ.stlserver.model.vo.HttpResult;
+import edu.situ.stlserver.service.EnrollmentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/enrollment")
+public class EnrollmentController {
+
+    @Autowired
+    private EnrollmentService enrollmentService;
+
+    @GetMapping
+    public HttpResult getByPage(Integer page, Integer limit, EnrollmentQueryDTO queryDTO) {
+        return HttpResult.success(enrollmentService.getByPage(page, limit, queryDTO));
+    }
+
+    @PostMapping
+    public HttpResult enroll(@RequestBody Enrollment enrollment) {
+        enrollmentService.enroll(enrollment);
+        return HttpResult.success();
+    }
+
+    @PutMapping("/{id}/cancel")
+    public HttpResult cancel(@PathVariable Integer id) {
+        enrollmentService.cancel(id);
+        return HttpResult.success();
+    }
+
+    @PutMapping("/{id}/checkin")
+    public HttpResult checkin(@PathVariable Integer id) {
+        enrollmentService.checkin(id);
+        return HttpResult.success();
+    }
+
+    @PutMapping("/{id}/uncheckin")
+    public HttpResult uncheckin(@PathVariable Integer id) {
+        enrollmentService.uncheckin(id);
+        return HttpResult.success();
+    }
+
+    @PutMapping("/{id}/restore")
+    public HttpResult restore(@PathVariable Integer id) {
+        enrollmentService.restore(id);
+        return HttpResult.success();
+    }
+
+    @DeleteMapping("/{id}")
+    public HttpResult delete(@PathVariable Integer id) {
+        enrollmentService.delete(id);
+        return HttpResult.success();
+    }
+}

src/main/java/edu/situ/stlserver/controller/EquipmentController.java

@@ -0,0 +1,56 @@
+package edu.situ.stlserver.controller;
+
+import edu.situ.stlserver.model.dto.EquipmentQueryDTO;
+import edu.situ.stlserver.model.entity.Equipment;
+import edu.situ.stlserver.model.vo.HttpResult;
+import edu.situ.stlserver.service.EquipmentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/equipment")
+public class EquipmentController {
+
+    @Autowired
+    private EquipmentService equipmentService;
+
+    @GetMapping
+    public HttpResult getByPage(Integer page, Integer limit, EquipmentQueryDTO queryDTO) {
+        return HttpResult.success(equipmentService.getByPage(page, limit, queryDTO));
+    }
+
+    @GetMapping("/{id}")
+    public HttpResult getById(@PathVariable Integer id) {
+        return HttpResult.success(equipmentService.getById(id));
+    }
+
+    @PostMapping
+    public HttpResult add(@RequestBody Equipment equipment) {
+        equipmentService.add(equipment);
+        return HttpResult.success();
+    }
+
+    @PutMapping
+    public HttpResult update(@RequestBody Equipment equipment) {
+        equipmentService.update(equipment);
+        return HttpResult.success();
+    }
+
+    @DeleteMapping("/{id}")
+    public HttpResult delete(@PathVariable Integer id) {
+        equipmentService.delete(id);
+        return HttpResult.success();
+    }
+
+    @PutMapping("/{id}/repair")
+    public HttpResult repair(@PathVariable Integer id) {
+        equipmentService.repair(id);
+        return HttpResult.success();
+    }
+
+    @PutMapping("/{id}/restore")
+    public HttpResult restore(@PathVariable Integer id) {
+        equipmentService.restore(id);
+        return HttpResult.success();
+    }
+}

src/main/java/edu/situ/stlserver/dao/EnrollmentMapper.java

@@ -0,0 +1,56 @@
+package edu.situ.stlserver.dao;
+
+import edu.situ.stlserver.model.entity.Enrollment;
+import edu.situ.stlserver.model.dto.EnrollmentQueryDTO;
+import org.apache.ibatis.annotations.*;
+
+import java.util.List;
+
+@Mapper
+public interface EnrollmentMapper {
+
+    @Select(value = {
+        "<script>",
+            "SELECT e.*, m.name AS member_name, c.name AS course_name ",
+            "FROM enrollments e ",
+            "LEFT JOIN members m ON e.member_id = m.id ",
+            "LEFT JOIN courses c ON e.course_id = c.id ",
+            "<where>",
+                "<if test=\"memberId != null\"> AND e.member_id = #{memberId}</if>",
+                "<if test=\"courseId != null\"> AND e.course_id = #{courseId}</if>",
+                "<if test=\"status != null and status != ''\"> AND e.status = #{status}</if>",
+            "</where>",
+            "ORDER BY e.enroll_date DESC",
+        "</script>"
+    })
+    List<Enrollment> select(EnrollmentQueryDTO queryDTO);
+
+    @Select("SELECT * FROM enrollments WHERE id = #{id}")
+    Enrollment selectById(Integer id);
+
+    @Select("SELECT * FROM enrollments WHERE member_id = #{memberId} AND course_id = #{courseId} AND status = '已报名'")
+    Enrollment selectByMemberAndCourse(@Param("memberId") Integer memberId, @Param("courseId") Integer courseId);
+
+    @Insert("INSERT INTO enrollments(member_id, course_id, enroll_date, status) " +
+            "VALUES(#{memberId}, #{courseId}, #{enrollDate}, #{status})")
+    @Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")
+    void insert(Enrollment enrollment);
+
+    @Update("UPDATE enrollments SET status = #{status} WHERE id = #{id}")
+    void updateStatus(@Param("id") Integer id, @Param("status") String status);
+
+    @Delete("DELETE FROM enrollments WHERE id = #{id}")
+    void delete(Integer id);
+
+    // 更新课程报名人数
+    @Update("UPDATE courses SET enrolled = enrolled + #{delta} WHERE id = #{courseId}")
+    void updateCourseEnrolled(@Param("courseId") Integer courseId, @Param("delta") int delta);
+
+    // 查询课程当前报名人数
+    @Select("SELECT enrolled FROM courses WHERE id = #{courseId}")
+    Integer selectCourseEnrolled(Integer courseId);
+
+    // 查询课程容量
+    @Select("SELECT capacity FROM courses WHERE id = #{courseId}")
+    Integer selectCourseCapacity(Integer courseId);
+}

src/main/java/edu/situ/stlserver/dao/EquipmentMapper.java

@@ -0,0 +1,41 @@
+package edu.situ.stlserver.dao;
+
+import edu.situ.stlserver.model.entity.Equipment;
+import edu.situ.stlserver.model.dto.EquipmentQueryDTO;
+import org.apache.ibatis.annotations.*;
+
+import java.util.List;
+
+@Mapper
+public interface EquipmentMapper {
+
+    @Select(value = {
+        "<script>",
+            "SELECT * FROM `equipment`",
+            "<where>",
+                "<if test=\"name != null and name != ''\"> AND `name` LIKE CONCAT('%', #{name}, '%')</if>",
+                "<if test=\"type != null and type != ''\"> AND `type` = #{type}</if>",
+                "<if test=\"status != null and status != ''\"> AND `status` = #{status}</if>",
+            "</where>",
+        "</script>"
+    })
+    List<Equipment> select(EquipmentQueryDTO queryDTO);
+
+    @Select("SELECT * FROM equipment WHERE id = #{id}")
+    Equipment selectById(Integer id);
+
+    @Insert("INSERT INTO equipment(name, type, brand, model, purchase_date, status, location, remark) " +
+            "VALUES(#{name}, #{type}, #{brand}, #{model}, #{purchaseDate}, #{status}, #{location}, #{remark})")
+    @Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")
+    void insert(Equipment equipment);
+
+    @Update("UPDATE equipment SET name=#{name}, type=#{type}, brand=#{brand}, model=#{model}, " +
+            "purchase_date=#{purchaseDate}, status=#{status}, location=#{location}, remark=#{remark} WHERE id=#{id}")
+    void update(Equipment equipment);
+
+    @Delete("DELETE FROM equipment WHERE id = #{id}")
+    void delete(Integer id);
+
+    @Update("UPDATE equipment SET status = #{status} WHERE id = #{id}")
+    void updateStatus(@Param("id") Integer id, @Param("status") String status);
+}

src/main/java/edu/situ/stlserver/model/dto/EnrollmentQueryDTO.java

@@ -0,0 +1,14 @@
+package edu.situ.stlserver.model.dto;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@ToString
+@NoArgsConstructor
+@Data
+public class EnrollmentQueryDTO {
+    private Integer memberId;
+    private Integer courseId;
+    private String status;
+}

src/main/java/edu/situ/stlserver/model/dto/EquipmentQueryDTO.java

@@ -0,0 +1,14 @@
+package edu.situ.stlserver.model.dto;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@ToString
+@NoArgsConstructor
+@Data
+public class EquipmentQueryDTO {
+    private String name;
+    private String type;
+    private String status;
+}

src/main/java/edu/situ/stlserver/model/entity/Enrollment.java

@@ -0,0 +1,20 @@
+package edu.situ.stlserver.model.entity;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@ToString
+@NoArgsConstructor
+@Data
+public class Enrollment {
+    private Integer id;
+    private Integer memberId;
+    private Integer courseId;
+    private String enrollDate;
+    private String status;
+
+    // 关联查询字段
+    private String memberName;
+    private String courseName;
+}

src/main/java/edu/situ/stlserver/model/entity/Equipment.java

@@ -0,0 +1,20 @@
+package edu.situ.stlserver.model.entity;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.ToString;
+
+@ToString
+@NoArgsConstructor
+@Data
+public class Equipment {
+    private Integer id;
+    private String name;
+    private String type;
+    private String brand;
+    private String model;
+    private String purchaseDate;
+    private String status;
+    private String location;
+    private String remark;
+}

src/main/java/edu/situ/stlserver/service/EnrollmentService.java

@@ -0,0 +1,15 @@
+package edu.situ.stlserver.service;
+
+import com.github.pagehelper.PageInfo;
+import edu.situ.stlserver.model.dto.EnrollmentQueryDTO;
+import edu.situ.stlserver.model.entity.Enrollment;
+
+public interface EnrollmentService {
+    PageInfo<Enrollment> getByPage(Integer page, Integer limit, EnrollmentQueryDTO queryDTO);
+    void enroll(Enrollment enrollment);
+    void cancel(Integer id);
+    void checkin(Integer id);
+    void uncheckin(Integer id);
+    void restore(Integer id);
+    void delete(Integer id);
+}

src/main/java/edu/situ/stlserver/service/EquipmentService.java

@@ -0,0 +1,15 @@
+package edu.situ.stlserver.service;
+
+import com.github.pagehelper.PageInfo;
+import edu.situ.stlserver.model.dto.EquipmentQueryDTO;
+import edu.situ.stlserver.model.entity.Equipment;
+
+public interface EquipmentService {
+    PageInfo<Equipment> getByPage(Integer page, Integer limit, EquipmentQueryDTO queryDTO);
+    Equipment getById(Integer id);
+    void add(Equipment equipment);
+    void update(Equipment equipment);
+    void delete(Integer id);
+    void repair(Integer id);
+    void restore(Integer id);
+}

src/main/java/edu/situ/stlserver/service/impl/EnrollmentServiceImpl.java

@@ -0,0 +1,132 @@
+package edu.situ.stlserver.service.impl;
+
+import cn.hutool.core.date.DateUtil;
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import edu.situ.stlserver.dao.EnrollmentMapper;
+import edu.situ.stlserver.model.dto.EnrollmentQueryDTO;
+import edu.situ.stlserver.model.entity.Enrollment;
+import edu.situ.stlserver.service.EnrollmentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+public class EnrollmentServiceImpl implements EnrollmentService {
+
+    @Autowired
+    private EnrollmentMapper enrollmentMapper;
+
+    @Override
+    public PageInfo<Enrollment> getByPage(Integer page, Integer limit, EnrollmentQueryDTO queryDTO) {
+        if (page == null) page = 1;
+        if (limit == null) limit = 10;
+        PageHelper.startPage(page, limit);
+        return new PageInfo<>(enrollmentMapper.select(queryDTO));
+    }
+
+    @Override
+    @Transactional
+    public void enroll(Enrollment enrollment) {
+        // 校验是否已报名
+        Enrollment existing = enrollmentMapper.selectByMemberAndCourse(enrollment.getMemberId(), enrollment.getCourseId());
+        if (existing != null) {
+            throw new RuntimeException("该会员已报名此课程");
+        }
+
+        // 校验课程容量
+        Integer enrolled = enrollmentMapper.selectCourseEnrolled(enrollment.getCourseId());
+        Integer capacity = enrollmentMapper.selectCourseCapacity(enrollment.getCourseId());
+        if (enrolled != null && capacity != null && enrolled >= capacity) {
+            throw new RuntimeException("该课程已满员");
+        }
+
+        enrollment.setEnrollDate(DateUtil.formatDateTime(DateUtil.date()));
+        enrollment.setStatus("已报名");
+        enrollmentMapper.insert(enrollment);
+
+        // 更新课程报名人数
+        enrollmentMapper.updateCourseEnrolled(enrollment.getCourseId(), 1);
+    }
+
+    @Override
+    @Transactional
+    public void cancel(Integer id) {
+        Enrollment enrollment = enrollmentMapper.selectById(id);
+        if (enrollment == null) {
+            throw new RuntimeException("预约记录不存在");
+        }
+        if ("已取消".equals(enrollment.getStatus())) {
+            throw new RuntimeException("该预约已取消");
+        }
+
+        enrollmentMapper.updateStatus(id, "已取消");
+
+        // 释放课程名额
+        enrollmentMapper.updateCourseEnrolled(enrollment.getCourseId(), -1);
+    }
+
+    @Override
+    public void checkin(Integer id) {
+        Enrollment enrollment = enrollmentMapper.selectById(id);
+        if (enrollment == null) {
+            throw new RuntimeException("预约记录不存在");
+        }
+        if (!"已报名".equals(enrollment.getStatus())) {
+            throw new RuntimeException("只有已报名的记录才能签到");
+        }
+        enrollmentMapper.updateStatus(id, "已签到");
+    }
+
+    @Override
+    public void uncheckin(Integer id) {
+        Enrollment enrollment = enrollmentMapper.selectById(id);
+        if (enrollment == null) {
+            throw new RuntimeException("预约记录不存在");
+        }
+        if (!"已签到".equals(enrollment.getStatus())) {
+            throw new RuntimeException("只有已签到的记录才能取消签到");
+        }
+        enrollmentMapper.updateStatus(id, "已报名");
+    }
+
+    @Override
+    @Transactional
+    public void restore(Integer id) {
+        Enrollment enrollment = enrollmentMapper.selectById(id);
+        if (enrollment == null) {
+            throw new RuntimeException("预约记录不存在");
+        }
+        if (!"已取消".equals(enrollment.getStatus())) {
+            throw new RuntimeException("只有已取消的记录才能恢复");
+        }
+
+        // 校验课程容量
+        Integer enrolled = enrollmentMapper.selectCourseEnrolled(enrollment.getCourseId());
+        Integer capacity = enrollmentMapper.selectCourseCapacity(enrollment.getCourseId());
+        if (enrolled != null && capacity != null && enrolled >= capacity) {
+            throw new RuntimeException("该课程已满员，无法恢复报名");
+        }
+
+        enrollmentMapper.updateStatus(id, "已报名");
+
+        // 恢复课程报名人数
+        enrollmentMapper.updateCourseEnrolled(enrollment.getCourseId(), 1);
+    }
+
+    @Override
+    @Transactional
+    public void delete(Integer id) {
+        Enrollment enrollment = enrollmentMapper.selectById(id);
+        if (enrollment == null) {
+            throw new RuntimeException("预约记录不存在");
+        }
+
+        enrollmentMapper.delete(id);
+
+        // 如果是有效报名，释放课程名额
+        if ("已报名".equals(enrollment.getStatus()) || "已签到".equals(enrollment.getStatus())) {
+            enrollmentMapper.updateCourseEnrolled(enrollment.getCourseId(), -1);
+        }
+    }
+}

src/main/java/edu/situ/stlserver/service/impl/EquipmentServiceImpl.java

@@ -0,0 +1,66 @@
+package edu.situ.stlserver.service.impl;
+
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import edu.situ.stlserver.dao.EquipmentMapper;
+import edu.situ.stlserver.model.dto.EquipmentQueryDTO;
+import edu.situ.stlserver.model.entity.Equipment;
+import edu.situ.stlserver.service.EquipmentService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class EquipmentServiceImpl implements EquipmentService {
+
+    @Autowired
+    private EquipmentMapper equipmentMapper;
+
+    @Override
+    public PageInfo<Equipment> getByPage(Integer page, Integer limit, EquipmentQueryDTO queryDTO) {
+        if (page == null) page = 1;
+        if (limit == null) limit = 10;
+        PageHelper.startPage(page, limit);
+        return new PageInfo<>(equipmentMapper.select(queryDTO));
+    }
+
+    @Override
+    public Equipment getById(Integer id) {
+        return equipmentMapper.selectById(id);
+    }
+
+    @Override
+    public void add(Equipment equipment) {
+        if (equipment.getStatus() == null || equipment.getStatus().isEmpty()) {
+            equipment.setStatus("正常");
+        }
+        equipmentMapper.insert(equipment);
+    }
+
+    @Override
+    public void update(Equipment equipment) {
+        equipmentMapper.update(equipment);
+    }
+
+    @Override
+    public void delete(Integer id) {
+        equipmentMapper.delete(id);
+    }
+
+    @Override
+    public void repair(Integer id) {
+        Equipment equipment = equipmentMapper.selectById(id);
+        if (!"正常".equals(equipment.getStatus())) {
+            throw new RuntimeException("只有正常状态的器材才能送修");
+        }
+        equipmentMapper.updateStatus(id, "维修中");
+    }
+
+    @Override
+    public void restore(Integer id) {
+        Equipment equipment = equipmentMapper.selectById(id);
+        if (!"维修中".equals(equipment.getStatus())) {
+            throw new RuntimeException("只有维修中的器材才能恢复");
+        }
+        equipmentMapper.updateStatus(id, "正常");
+    }
+}

src/main/resources/data.sql

@@ -65,3 +65,44 @@ INSERT INTO `courses` (`name`, `type`, `coach_name`, `price`, `duration`, `statu
 ('空手道', '搏击', '杨丽', 279, '55分钟', '进行中', '防身技能', '2024-08-09 18:30', 16, 20),
 ('肚皮舞', '舞蹈', '黄勇', 189, '45分钟', '进行中', '女性专属', '2024-08-10 13:00', 22, 25),
 ('CrossFit', '综合', '徐静', 359, '60分钟', '进行中', '综合训练', '2024-08-11 07:30', 18, 20);
+
+-- 器材模拟数据
+INSERT INTO `equipment` (`name`, `type`, `brand`, `model`, `purchase_date`, `status`, `location`, `remark`) VALUES
+('跑步机 T100', '有氧', 'Technogym', 'T100 Pro', '2023-06-15', '正常', '有氧区A', '高端商用跑步机'),
+('椭圆机 E200', '有氧', 'Life Fitness', 'E200', '2023-06-15', '正常', '有氧区A', '低冲击有氧训练'),
+('动感单车 S50', '有氧', 'Spinning', 'S50', '2023-08-20', '正常', '动感单车房', '团体课程专用'),
+('划船机 R30', '有氧', 'Concept2', 'RowErg', '2024-01-10', '维修中', '有氧区B', '水阻划船机，需更换水箱'),
+('史密斯机 SM100', '力量', 'Hammer Strength', 'Smith Machine', '2023-06-15', '正常', '力量区', '综合力量训练'),
+('龙门架 C200', '力量', 'Life Fitness', 'Cable Motion', '2023-06-15', '正常', '力量区', '多功能缆绳训练'),
+('卧推架 BP50', '力量', 'Rogue', 'BP50', '2023-09-01', '正常', '力量区', '平板卧推专用'),
+('深蹲架 SQ30', '自由重量', 'Rogue', 'R-3', '2023-09-01', '正常', '自由重量区', '力量训练核心设备'),
+('哑铃套装', '自由重量', 'Jordan', '5-50kg', '2023-07-10', '正常', '自由重量区', '5-50kg各一对'),
+('杠铃杆 Olympic', '自由重量', 'Eleiko', 'IWF', '2023-07-10', '正常', '自由重量区', '奥林匹克标准杠铃'),
+('壶铃套装', '功能训练', 'Rogue', '8-32kg', '2024-02-15', '正常', '功能训练区', '8-32kg组合'),
+('战绳 Rope50', '功能训练', 'Onnit', '50ft', '2024-03-01', '正常', '功能训练区', '50英尺战绳'),
+('药球 Ball10', '功能训练', 'Dynamax', '10lb', '2024-03-01', '正常', '功能训练区', '10磅药球'),
+('TRX悬挂训练带', '功能训练', 'TRX', 'Pro4', '2024-04-10', '已报废', '功能训练区', '使用超过2年，已更换'),
+('瑜伽垫套装', '有氧', 'Manduka', 'PRO', '2024-05-20', '正常', '瑜伽室', '20张专业瑜伽垫');
+
+-- 预约模拟数据
+INSERT INTO `enrollments` (`member_id`, `course_id`, `enroll_date`, `status`) VALUES
+(1, 1, '2024-08-01 10:00:00', '已报名'),
+(1, 3, '2024-08-01 10:30:00', '已签到'),
+(2, 2, '2024-08-01 11:00:00', '已报名'),
+(2, 5, '2024-08-01 11:30:00', '已签到'),
+(3, 1, '2024-08-02 09:00:00', '已签到'),
+(3, 4, '2024-08-02 09:30:00', '已报名'),
+(4, 7, '2024-08-02 14:00:00', '已报名'),
+(4, 9, '2024-08-02 14:30:00', '已签到'),
+(5, 3, '2024-08-03 10:00:00', '已取消'),
+(5, 6, '2024-08-03 10:30:00', '已报名'),
+(6, 2, '2024-08-03 15:00:00', '已报名'),
+(6, 8, '2024-08-03 15:30:00', '已签到'),
+(7, 5, '2024-08-04 09:00:00', '已报名'),
+(7, 10, '2024-08-04 09:30:00', '已报名'),
+(8, 1, '2024-08-04 11:00:00', '已报名'),
+(8, 3, '2024-08-04 11:30:00', '已取消'),
+(9, 4, '2024-08-05 14:00:00', '已报名'),
+(9, 9, '2024-08-05 14:30:00', '已签到'),
+(10, 7, '2024-08-05 16:00:00', '已报名'),
+(10, 11, '2024-08-05 16:30:00', '已报名');

src/main/resources/schema.sql

@@ -45,3 +45,27 @@ CREATE TABLE IF NOT EXISTS `courses` (
   `enrolled` INT DEFAULT 0 COMMENT '已报名人数',
   `capacity` INT NOT NULL COMMENT '课程容量'
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- 器材表
+CREATE TABLE IF NOT EXISTS `equipment` (
+  `id` INT AUTO_INCREMENT PRIMARY KEY,
+  `name` VARCHAR(100) NOT NULL COMMENT '器材名称',
+  `type` VARCHAR(50) NOT NULL COMMENT '器材类型：有氧/力量/自由重量/功能训练',
+  `brand` VARCHAR(50) DEFAULT NULL COMMENT '品牌',
+  `model` VARCHAR(50) DEFAULT NULL COMMENT '型号',
+  `purchase_date` DATE DEFAULT NULL COMMENT '购买日期',
+  `status` VARCHAR(20) NOT NULL DEFAULT '正常' COMMENT '状态：正常/维修中/已报废',
+  `location` VARCHAR(100) DEFAULT NULL COMMENT '存放位置',
+  `remark` TEXT DEFAULT NULL COMMENT '备注'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- 预约表
+CREATE TABLE IF NOT EXISTS `enrollments` (
+  `id` INT AUTO_INCREMENT PRIMARY KEY,
+  `member_id` INT NOT NULL COMMENT '会员ID',
+  `course_id` INT NOT NULL COMMENT '课程ID',
+  `enroll_date` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '报名时间',
+  `status` VARCHAR(20) NOT NULL DEFAULT '已报名' COMMENT '状态：已报名/已签到/已取消',
+  FOREIGN KEY (`member_id`) REFERENCES `members`(`id`),
+  FOREIGN KEY (`course_id`) REFERENCES `courses`(`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;