java基于java的图书馆座位预约系统

基于Java的图书馆座位预约系统可以采用SSM框架（Spring、SpringMVC、MyBatis）进行开发。主要实现的功能包括用户管理、菜单管理、角色管理、权限管理、学生管理等。以下是该系统的主要功能模块：

1.用户管理模块：实现用户的添加、删除、修改和查询等功能。

// 添加用户
@RequestMapping(value = "/addUser", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> addUser(User user) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        userService.addUser(user);
        resultMap.put("status", "success");
        resultMap.put("msg", "添加用户成功！");
    } catch (Exception e) {
        resultMap.put("status", "error");
        resultMap.put("msg", "添加用户失败！");
        e.printStackTrace();
    }
    return resultMap;
}

// 删除用户
@RequestMapping(value = "/deleteUser", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> deleteUser(Integer id) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        userService.deleteUser(id);
        resultMap.put("status", "success");
        resultMap.put("msg", "删除用户成功！");
    } catch (Exception e) {
        resultMap.put("status", "error");
        resultMap.put("msg", "删除用户失败！");
        e.printStackTrace();
    }
    return resultMap;
}

// 修改用户
@RequestMapping(value = "/updateUser", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> updateUser(User user) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        userService.updateUser(user);
        resultMap.put("status", "success");
        resultMap.put("msg", "修改用户成功！");
    } catch (Exception e) {
        resultMap.put("status", "error");
        resultMap.put("msg", "修改用户失败！");
        e.printStackTrace();
    }
    return resultMap;
}

// 查询用户
@RequestMapping(value = "/getUserList", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> getUserList(Integer page, Integer rows, String username) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        List<User> userList = userService.getUserList(page, rows, username);
        Long total = userService.getTotal(username);
        resultMap.put("rows", userList);
        resultMap.put("total", total);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return resultMap;
}

2.座位管理模块：实现座位的预约、取消预约、查询座位状态等功能。

// 预约座位
@RequestMapping(value = "/reserveSeat", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> reserveSeat(Integer seatId, Integer userId) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        Seat seat = seatService.getSeatById(seatId);
        if (seat.getStatus() == 0) {
            seat.setStatus(1);
            seat.setUserId(userId);
            seatService.updateSeat(seat);
            resultMap.put("status", "success");
            resultMap.put("msg", "预约座位成功！");
        } else {
            resultMap.put("status", "error");
            resultMap.put("msg", "该座位已被预约！");
        }
    } catch (Exception e) {
        resultMap.put("status", "error");
        resultMap.put("msg", "预约座位失败！");
        e.printStackTrace();
    }
    return resultMap;
}

// 取消预约
@RequestMapping(value = "/cancelReservation", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> cancelReservation(Integer seatId) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        Seat seat = seatService.getSeatById(seatId);
        seat.setStatus(0);
        seat.setUserId(null);
        seatService.updateSeat(seat);
        resultMap.put("status", "success");
        resultMap.put("msg", "取消预约成功！");
    } catch (Exception e) {
        resultMap.put("status", "error");
        resultMap.put("msg", "取消预约失败！");
        e.printStackTrace();
    }
    return resultMap;
}

// 查询座位状态
@RequestMapping(value = "/getSeatStatus", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> getSeatStatus(Integer seatId) {
    Map<String, Object> resultMap = new HashMap<>();
    try {
        Seat seat = seatService.getSeatById(seatId);
        if (seat.getStatus() == 0) {
            resultMap.put("status", "success");
            resultMap.put("msg", "该座位未被预约！");
        } else {
            resultMap.put("status", "error");
            resultMap.put("msg", "该座位已被预约！");
        }
    } catch (Exception e) {
        resultMap.put("status", "error");
        resultMap.put("msg", "查询座位状态失败！");
        e.printStackTrace();
    }
    return resultMap;
}