家乡网站建设,大连领超科技网站建设有限公司,服务器登录入口,集成电路行业人才文章目录 瑞吉外卖 — day71. 导入用户地址簿相关功能代码1.1 需求分析1.2 数据模型1.3 代码开发 2. 菜品展示2.1 需求分析2.2 代码开发 3. 购物车3.1 需求分析3.2 数据模型3.3 代码开发 4. 下单4.1 需求分析4.2 数据模型4.3 代码开发 瑞吉外卖 — day7
移动端相关业务功能 —… 文章目录 瑞吉外卖 — day71. 导入用户地址簿相关功能代码1.1 需求分析1.2 数据模型1.3 代码开发 2. 菜品展示2.1 需求分析2.2 代码开发 3. 购物车3.1 需求分析3.2 数据模型3.3 代码开发 4. 下单4.1 需求分析4.2 数据模型4.3 代码开发 瑞吉外卖 — day7
移动端相关业务功能 —— 菜品展示、购物车、下单
1. 导入用户地址簿相关功能代码
1.1 需求分析
地址簿指的是移动端消费者用户的地址信息用户登录成功后可以维护自己的地址信息。同一个用户可以有多个地址信息但是只能有一个默认地址。
1.2 数据模型
用户的地址信息会存储在address_book表即地址簿表中。
1.3 代码开发 导入功能代码 实体类AddressBook直接从课程资料中导入即可) Mapper接口AddressBookMapper 业务层接口AddressBookService 业务层实现类AddressBookServicelmpl 控制层AddressBookController(直接从课程资料中导入即可) AddressBookController代码 /*** 地址簿管理*/
Slf4j
RestController
RequestMapping(/addressBook)
public class AddressBookController {Autowiredprivate AddressBookService addressBookService;/*** 新增*/PostMappingpublic RAddressBook save(RequestBody AddressBook addressBook) {addressBook.setUserId(BaseContext.getCurrentId());log.info(addressBook:{}, addressBook);addressBookService.save(addressBook);return R.success(addressBook);}/*** 设置默认地址*/PutMapping(default)public RAddressBook setDefault(RequestBody AddressBook addressBook) {log.info(addressBook:{}, addressBook);LambdaUpdateWrapperAddressBook wrapper new LambdaUpdateWrapper();wrapper.eq(AddressBook::getUserId, BaseContext.getCurrentId());wrapper.set(AddressBook::getIsDefault, 0);//SQL:update address_book set is_default 0 where user_id ?addressBookService.update(wrapper);addressBook.setIsDefault(1);//SQL:update address_book set is_default 1 where id ?addressBookService.updateById(addressBook);return R.success(addressBook);}/*** 根据id查询地址*/GetMapping(/{id})public R get(PathVariable Long id) {AddressBook addressBook addressBookService.getById(id);if (addressBook ! null) {return R.success(addressBook);} else {return R.error(没有找到该对象);}}/*** 查询默认地址*/GetMapping(default)public RAddressBook getDefault() {LambdaQueryWrapperAddressBook queryWrapper new LambdaQueryWrapper();queryWrapper.eq(AddressBook::getUserId, BaseContext.getCurrentId());queryWrapper.eq(AddressBook::getIsDefault, 1);//SQL:select * from address_book where user_id ? and is_default 1AddressBook addressBook addressBookService.getOne(queryWrapper);if (null addressBook) {return R.error(没有找到该对象);} else {return R.success(addressBook);}}/*** 查询指定用户的全部地址*/GetMapping(/list)public RListAddressBook list(AddressBook addressBook) {addressBook.setUserId(BaseContext.getCurrentId());log.info(addressBook:{}, addressBook);//条件构造器LambdaQueryWrapperAddressBook queryWrapper new LambdaQueryWrapper();queryWrapper.eq(null ! addressBook.getUserId(), AddressBook::getUserId, addressBook.getUserId());queryWrapper.orderByDesc(AddressBook::getUpdateTime);//SQL:select * from address_book where user_id ? order by update_time descreturn R.success(addressBookService.list(queryWrapper));}
}2. 菜品展示
2.1 需求分析
用户登录成功后跳转到系统首页在首页需要根据分类来展示菜品和套餐 。如果菜品设置了口味信息需要展示洗择规格按钮否则显示按钮。
2.2 代码开发 前端与服务端交互过程 1、页面(front/index.html)发送ajax请求获取分类数据菜品分类和套餐分类) 2、页面发送ajax请求获取第一个分类下的菜品或者套餐 页面(front/index.html)发送ajax请求获取分类数据菜品分类和套餐分类) 页面发送ajax请求获取第一个分类下的菜品或者套餐 DishController中 GetMapping(list)public RListDishDto list(Dish dish){//构造查询条件LambdaQueryWrapperDish queryWrapper new LambdaQueryWrapper();queryWrapper.eq(dish.getCategoryId()!null, Dish::getCategoryId, dish.getCategoryId());//添加条件查询状态为1的菜品queryWrapper.eq(Dish::getStatus,1);//添加排序条件queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);ListDish list dishService.list(queryWrapper);ListDishDto dishDtoList list.stream().map((item) - {DishDto dishDto new DishDto();BeanUtils.copyProperties(item,dishDto);Long categoryId item.getCategoryId();//根据id查询分类对象Category category categoryService.getById(categoryId);if(category ! null){String categoryName category.getName();dishDto.setCategoryName(categoryName);}//当前菜品的idLong dishId item.getId();LambdaQueryWrapperDishFlavor lambdaQueryWrapper new LambdaQueryWrapper();lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);ListDishFlavor dishFlavorList dishFlavorService.list(lambdaQueryWrapper);dishDto.setFlavors(dishFlavorList);return dishDto;}).collect(Collectors.toList());return R.success(dishDtoList);}SetmealController中 /*** 根据条件查询套餐数据* param setmeal* return*/GetMapping(list)public RListSetmeal list(Setmeal setmeal){LambdaQueryWrapperSetmeal queryWrapper new LambdaQueryWrapper();queryWrapper.eq(setmeal.getCategoryId()! null,Setmeal::getCategoryId,setmeal.getCategoryId());queryWrapper.eq(setmeal.getStatus() ! null, Setmeal::getStatus, setmeal.getStatus());queryWrapper.orderByDesc(Setmeal::getUpdateTime);ListSetmeal list setmealService.list(queryWrapper);return R.success(list);}3. 购物车
3.1 需求分析
移动端用户可以将菜品或者套餐添加到购物车。对于菜品来说如果设置了口味信息则需要选择规格后才能加入购物车;对于套餐来说可以直接点击将当前套餐加入购物车。在购物车中可以修改菜品和套餐的数量也可以清空购物车。
3.2 数据模型
购物车对应的数据表为shopping_cart表
3.3 代码开发 前段与服务端交互过程 1、点击加入购物车或者按钮页面发送ajax请求请求服务端将菜品或者套餐添加到购物车 2、点击购物车图标页面发送ajax请求请求服务端查询购物车中的菜品和套餐 3、点击清空购物车按钮页面发送ajax请求请求服务端来执行清空购物车操作 创建需要的类和接口 实体类ShoppingCart ( 直接从课程资料中导入即可) Mapper接口ShoppingCartMapper 业务层接口ShoppingCartService 业务层实现类ShoppingCartServicelmpl 控制层ShoppingCartController 将菜品或者套餐添加到购物车 RestController
RequestMapping(shoppingCart)
Slf4j
public class ShoppingCartController {Autowiredprivate ShoppingCartService shoppingCartService;/*** 添加购物车* param shoppingCart* return*/PostMapping(add)public RShoppingCart add(RequestBody ShoppingCart shoppingCart){log.info(购物车数据{},shoppingCart);//设置用户id指定当前是哪个用户的购物车数据Long currentId BaseContext.getCurrentId();shoppingCart.setUserId(currentId);LambdaQueryWrapperShoppingCart queryWrapper new LambdaQueryWrapper();queryWrapper.eq(ShoppingCart::getUserId,currentId);//查询当前菜品或套餐是否在购物车中Long dishId shoppingCart.getDishId();if(dishId ! null){//添加到购物车的是菜品queryWrapper.eq(ShoppingCart::getDishId,dishId);}else{//添加到购物车的是套餐queryWrapper.eq(ShoppingCart::getSetmealId,shoppingCart.getSetmealId());}ShoppingCart cart shoppingCartService.getOne(queryWrapper);//如果已存在在原来数量基础上1if(cart ! null){Integer number cart.getNumber();cart.setNumber(number1);shoppingCartService.updateById(cart);}else{//如果不存在则添加到购物车数量默认就是1shoppingCart.setNumber(1);shoppingCart.setCreateTime(LocalDateTime.now());shoppingCartService.save(shoppingCart);cart shoppingCart;}return R.success(cart);}
}查询购物车中的菜品和套餐 /*** 查看购物车当前数据* return*/GetMapping(list)public RListShoppingCart list(){log.info(查看购物车...);LambdaQueryWrapperShoppingCart queryWrapper new LambdaQueryWrapper();queryWrapper.eq(ShoppingCart::getUserId,BaseContext.getCurrentId());queryWrapper.orderByAsc(ShoppingCart::getCreateTime);ListShoppingCart list shoppingCartService.list(queryWrapper);return R.success(list);}清空购物车操作 /*** 清空购物车* return*/DeleteMapping(clean)public RString clean(){LambdaQueryWrapperShoppingCart queryWrapper new LambdaQueryWrapper();queryWrapper.eq(ShoppingCart::getUserId,BaseContext.getCurrentId());shoppingCartService.remove(queryWrapper);return R.success(清空购物车成功);}4. 下单
4.1 需求分析
移动端用户将菜品或者套餐加入购物车后可以点击购物车中的去结算按钮页面跳转到订单确认页面点击去支付按钮则完成下单操作。
4.2 数据模型 orders订单表 order_ detail:订单明细表
4.3 代码开发 前端页面与服务端交互过程 1、在购物车中点击去结算按钮页面跳转到订单确认页面 2、在订单确认页面发送ajax请求,请求服务端获取当前登录用户的默认地址 3、在订单确认页面发送ajax请求请求服务端获取当前登录用户的购物车数据 4、在订单确认页面点击去支付按钮 发送ajax请求 请求服务端完成下单操作 基本的类和接口 实体类Orders、OrderDetail (直接从课程资料中导入即可) Mapper接口OrderMapper、OrderDetailMapper 业务层接口OrderService、OrderDetailService 业务层实现类OrderServicelmpl、OrderDetailServicelmpl 控制层OrderController、OrderDetailController OrderController代码 RestController
RequestMapping(order)
Slf4j
public class OrderController {Autowiredprivate OrdersService ordersService;/*** 用户下单* param orders* return*/PostMapping(submit)public RString submit(RequestBody Orders orders){log.info(订单数据{},orders);ordersService.submit(orders);return R.success(下单成功);}
} OrdersServiceImpl代码 Service
public class OrdersServiceImpl extends ServiceImplOrdersMapper, Ordersimplements OrdersService{Autowiredprivate ShoppingCartService shoppingCartService;Autowiredprivate UserService userService;Autowiredprivate AddressBookService addressBookService;Autowiredprivate OrderDetailService orderDetailService;/*** 用户下单* param orders*/OverrideTransactionalpublic void submit(Orders orders) {//获取当前用户idLong currentId BaseContext.getCurrentId();//查询当前用户购物车数据LambdaQueryWrapperShoppingCart queryWrapper new LambdaQueryWrapper();queryWrapper.eq(ShoppingCart::getUserId,currentId);ListShoppingCart shoppingCarts shoppingCartService.list(queryWrapper);if(shoppingCarts null || shoppingCarts.size() 0){throw new CustomerException(购物车为空不能下单);}//查询用户数据User user userService.getById(currentId);//查询地址数据Long addressBookId orders.getAddressBookId();AddressBook addressBook addressBookService.getById(addressBookId);if(addressBook null){throw new CustomerException(用户地址信息有误不能下单);}long orderId IdWorker.getId();//订单号//原子操作保证线程安全AtomicInteger amount new AtomicInteger(0);ListOrderDetail orderDetails shoppingCarts.stream().map((item)-{OrderDetail orderDetail new OrderDetail();orderDetail.setOrderId(orderId);orderDetail.setNumber(item.getNumber());orderDetail.setDishFlavor(item.getDishFlavor());orderDetail.setDishId(item.getDishId());orderDetail.setSetmealId(item.getSetmealId());orderDetail.setName(item.getName());orderDetail.setImage(item.getImage());orderDetail.setAmount(item.getAmount());amount.addAndGet(item.getAmount().multiply(new BigDecimal(item.getNumber())).intValue());return orderDetail;}).collect(Collectors.toList());//向orders表插入数据一条数据orders.setId(orderId);orders.setOrderTime(LocalDateTime.now());orders.setCheckoutTime(LocalDateTime.now());orders.setStatus(2);orders.setAmount(new BigDecimal(amount.get()));//总金额orders.setUserId(currentId);orders.setNumber(String.valueOf(orderId));orders.setUserName(user.getName());orders.setConsignee(addressBook.getConsignee());orders.setPhone(addressBook.getPhone());orders.setAddress((addressBook.getProvinceName() null ? : addressBook.getProvinceName()) (addressBook.getCityName() null ? : addressBook.getCityName()) (addressBook.getDistrictName() null ? : addressBook.getDistrictName()) (addressBook.getDetail() null ? : addressBook.getDetail()));this.save(orders);//向order_detail表插入数据多条数据orderDetailService.saveBatch(orderDetails);//清空购物车数据shoppingCartService.remove(queryWrapper);}
}
