地址簿管理
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。
用户的地址信息会存储在address book表，即地址表中。
导入代码
/**
* 地址簿
*/
@Data
public class AddressBook implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
//用户id
private Long userId;
//收货人
private String consignee;
//手机号
private String phone;
//性别 0 女 1 男
private String sex;
//省级区划编号
private String provinceCode;
//省级名称
private String provinceName;
//市级区划编号
private String cityCode;
//市级名称
private String cityName;
//区级区划编号
private String districtCode;
//区级名称
private String districtName;
//详细地址
private String detail;
//标签
private String label;
//是否默认 0 否 1是
private Integer isDefault;
//创建时间
@TableField(fill = FieldFill.INSERT)
private LocalDateTime createTime;
//更新时间
@TableField(fill = FieldFill.INSERT_UPDATE)
private LocalDateTime updateTime;
//创建人
@TableField(fill = FieldFill.INSERT)
private Long createUser;
//修改人
@TableField(fill = FieldFill.INSERT_UPDATE)
private Long updateUser;
//是否删除
private Integer isDeleted;
}
@Mapper
public interface AddressBookMapper extends BaseMapper<AddressBook> {
}
public interface AddressBookService extends IService<AddressBook> {
}
package com.itheima.reggie.service.impl;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.entity.AddressBook;
import com.itheima.reggie.mapper.AddressBookMapper;
import com.itheima.reggie.service.AddressBookService;
import org.springframework.stereotype.Service;
@Service
public class AddressBookServiceImpl extends ServiceImpl<AddressBookMapper, AddressBook> implements AddressBookService {
}
/**
* 地址簿管理
*/
@Slf4j
@RestController
@RequestMapping("/addressBook")
public class AddressBookController {
@Autowired
private AddressBookService addressBookService;
/**
* 新增
*/
@PostMapping
public R<AddressBook> 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 R<AddressBook> setDefault(@RequestBody AddressBook addressBook) {
log.info("addressBook:{}", addressBook);
LambdaUpdateWrapper<AddressBook> 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 R<AddressBook> getDefault() {
LambdaQueryWrapper<AddressBook> 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 = 1
AddressBook 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 R<List<AddressBook>> list(AddressBook addressBook) {
addressBook.setUserId(BaseContext.getCurrentId());
log.info("addressBook:{}", addressBook);
//条件构造器
LambdaQueryWrapper<AddressBook> 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 desc
return R.success(addressBookService.list(queryWrapper));
}
}
菜品展示
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 [选择规格] 按钮，否则显示 + 按钮。
在开发代码之前，需要梳理一下前端页面和服务端的交互过程
- 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开发菜品
- 展示功能，其实就是在服务端编写代码去处理前端页面发送的这2次请求即可。
- 注意: 首页加载完成后，还发送了一次ajax请求用于加载购物车数据，此处可以将这次请求的地址暂时修改一下，从静态ison文件获取数据，等后续开发购物车功能时再修改回来
代码开发
菜品查询: 之前根据分类id查询菜品, 返回的菜品数据中不包含口味数据, 现在需要加上, 因为前端需要展示
/**
* 菜品管理
*/
@Slf4j
@RestController
@RequestMapping("/dish")
public class DishController {
@Autowired
private DishService dishService;
@Autowired
private DishFlavorService dishFlavorService;
@Autowired
private CategoryService categoryService;
/**
* 根据条件查询对应的菜品数据
*
* @param dish
* @return
*/
@GetMapping("/list")
public R<List<DishDto>> list(Dish dish) {
// 构造查询条件
LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
// 添加查询条件
queryWrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
// 添加查询条件, 查询状态为1（起售）的菜品
queryWrapper.eq(Dish::getStatus, 1);
// 添加排序条件
queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
// 查询数据
List<Dish> list = dishService.list(queryWrapper);
// 处理菜品数据, 添加菜品的口味
List<DishDto> dishDtoList = list.stream().map(item -> {
DishDto dishDto = new DishDto();
BeanUtils.copyProperties(item, dishDto);
// 分类id
Long categoryId = item.getCategoryId();
// 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id
Long dishId = item.getId();
LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
lambdaQueryWrapper.eq(DishFlavor::getDishId, dishId);
// 查询当前菜品对应的口味数据
List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
dishDto.setFlavors(dishFlavorList);
return dishDto;
}).collect(Collectors.toList());
return R.success(dishDtoList);
}
}
菜品查询: 根据套餐id查询菜品
/**
* 套餐管理
*/
@Slf4j
@RestController
@RequestMapping("/setmeal")
public class SetmealController {
@Autowired
private SetmealService setmealService;
/**
* 根据条件查询套餐数据
* @param setmeal
* @return
*/
@GetMapping("/list")
public R<List<Setmeal>> list(Setmeal setmeal) {
LambdaQueryWrapper<Setmeal> 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);
List<Setmeal> list = setmealService.list(queryWrapper);
return R.success(list);
}
}
购物车
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。
购物车对应的数据表为shopping cart表
在开发代码之前，需要梳理一下购物车操作时前端页面和服务端的交互过程:
- 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
- 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
- 点击清空购物车按钮，页面发送aiax请求，请求服务端来执行清空购物车操作
- 开发购物车功能，其实就是在服务端编写代码去处理前端页面发送的这3次请求即可
代码开发
在开发业务功能前，先将需要用到的类和接口基本结构创建好
/**
* 购物车
*/
@Data
public class ShoppingCart implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
//名称
private String name;
//用户id
private Long userId;
//菜品id
private Long dishId;
//套餐id
private Long setmealId;
//口味
private String dishFlavor;
//数量
private Integer number;
//金额
private BigDecimal amount;
//图片
private String image;
private LocalDateTime createTime;
}
@Mapper
public interface ShoppingCartMapper extends BaseMapper<ShoppingCart> {
}
public interface ShoppingCartService extends IService<ShoppingCart> {
}
@Service
public class ShoppingCartServiceImpl extends ServiceImpl<ShoppingCartMapper, ShoppingCart> implements ShoppingCartService {
}
/**
* 购物车
*/
@Slf4j
@RestController
@RequestMapping("/shoppingCart")
public class ShoppingCartController {
@Autowired
private ShoppingCartService shoppingCartService;
}
添加购物车接口
/**
* 购物车
*/
@Slf4j
@RestController
@RequestMapping("/shoppingCart")
public class ShoppingCartController {
@Autowired
private ShoppingCartService shoppingCartService;
/**
* 添加购物车
*
* @param shoppingCart
* @return
*/
@RequestMapping("/add")
public R<ShoppingCart> 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);
//查询当前菜品或者套餐是否在购物车中
Long dishId = shoppingCart.getDishId();
LambdaQueryWrapper<ShoppingCart> queryWrapper = new LambdaQueryWrapper<>();
queryWrapper.eq(ShoppingCart::getUserId, currentId);
if (dishId != null) {
// 当前添加到购物车的是菜品
queryWrapper.eq(ShoppingCart::getDishId, dishId);
} else {
// 当前添加到购物车的是套餐
queryWrapper.eq(ShoppingCart::getSetmealId, shoppingCart.getSetmealId());
}
// 查询当前菜品或者套餐是否在购物车中
ShoppingCart cartServiceOne = shoppingCartService.getOne(queryWrapper);
if(cartServiceOne != null) {
//如果存在, 就在原来数量基础上加1
Integer number = cartServiceOne.getNumber();
cartServiceOne.setNumber(number + 1);
shoppingCartService.updateById(cartServiceOne);
} else {
//如果不存在，添加到购物车，数量默认是1
shoppingCart.setNumber(1);
shoppingCart.setCreateTime(LocalDateTime.now());
shoppingCartService.save(shoppingCart);
cartServiceOne = shoppingCart;
}
return R.success(cartServiceOne);
}
}
查询购物车接口
/**
* 购物车
*/
@Slf4j
@RestController
@RequestMapping("/shoppingCart")
public class ShoppingCartController {
@Autowired
private ShoppingCartService shoppingCartService;
/**
* 查看购物车
* @return
*/
@GetMapping("/list")
public R<List<ShoppingCart>> list() {
log.info("查看购物车...");
LambdaQueryWrapper<ShoppingCart> queryWrapper = new LambdaQueryWrapper<>();
queryWrapper.eq(ShoppingCart::getUserId, BaseContext.getCurrentId());
queryWrapper.orderByAsc(ShoppingCart::getCreateTime);
List<ShoppingCart> list = shoppingCartService.list(queryWrapper);
return R.success(list);
}
}
清空购物车接口
/**
* 购物车
*/
@Slf4j
@RestController
@RequestMapping("/shoppingCart")
public class ShoppingCartController {
@Autowired
private ShoppingCartService shoppingCartService;
* 清空购物车
* @return
*/
@RequestMapping("/clean")
public R<String> clean() {
//SQL: delete from shopping_cart where user_id = ?
LambdaQueryWrapper<ShoppingCart> queryWrapper = new LambdaQueryWrapper<>();
queryWrapper.eq(ShoppingCart::getUserId, BaseContext.getCurrentId());
shoppingCartService.remove(queryWrapper);
return R.success("清空购物车成功");
}
}
用户下单
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
用户下单业务对应的数据表为 orders表 和 order_detail表
在开发代码之前，需要梳理一下用户下单操作时前端页面和服务端的交互过程
- 在购物车中点击 [去结算] 按钮，页面跳转到订单确认页面
- 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
- 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
- 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
- 开发用户下单功能，其实就是在服务端编写代码去处理前端页面发送的请求即可
代码开发
在开发业务功能前，先将需要用到的类和接口基本结构创建好
/**
* 订单明细
*/
@Data
public class OrderDetail implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
//名称
private String name;
//订单id
private Long orderId;
//菜品id
private Long dishId;
//套餐id
private Long setmealId;
//口味
private String dishFlavor;
//数量
private Integer number;
//金额
private BigDecimal amount;
//图片
private String image;
}
/**
* 订单
*/
@Data
public class Orders implements Serializable {
private static final long serialVersionUID = 1L;
private Long id;
//订单号
private String number;
//订单状态 1待付款，2待派送，3已派送，4已完成，5已取消
private Integer status;
//下单用户id
private Long userId;
//地址id
private Long addressBookId;
//下单时间
private LocalDateTime orderTime;
//结账时间
private LocalDateTime checkoutTime;
//支付方式 1微信，2支付宝
private Integer payMethod;
//实收金额
private BigDecimal amount;
//备注
private String remark;
//用户名
private String userName;
//手机号
private String phone;
//地址
private String address;
//收货人
private String consignee;
}
@Mapper
public interface OrderMapper extends BaseMapper<Orders> {
}
@Mapper
public interface OrderDetailMapper extends BaseMapper<OrderDetail> {
}
public interface OrderService extends IService<Orders> {
}
public interface OrderDetailService extends IService<OrderDetail> {
}
@Service
public class OrderServiceImpl extends ServiceImpl<OrderMapper, Orders> implements OrderService {
}
@Service
public class OrderDetailServiceImpl extends ServiceImpl<OrderDetailMapper, OrderDetail> implements OrderDetailService {
}
/**
* 订单明细
*/
@Slf4j
@RestController
@RequestMapping("/orderDetail")
public class OrderDetailController {
@Autowired
private OrderDetailService orderDetailService;
}
/**
* 订单
*/
@Slf4j
@RestController
@RequestMapping("/order")
public class OrderController {
@Autowired
private OrderService orderService;
}
用户下单接口
/**
* 订单
*/
@Slf4j
@RestController
@RequestMapping("/order")
public class OrderController {
@Autowired
private OrderService orderService;
/**
* 用户下单
* @param orders
* @return
*/
@PostMapping("/submit")
public R<String> submit(@RequestBody Orders orders){
orderService.submit(orders);
return R.success("下单成功");
}
}
public interface OrderService extends IService<Orders> {
/**
* 用户下单
* @param orders
*/
void submit(Orders orders);
}
@Service
public class OrderServiceImpl extends ServiceImpl<OrderMapper, Orders> implements OrderService {
@Autowired
private ShoppingCartService shoppingCartService;
@Autowired
private UserService userService;
@Autowired
private AddressBookService addressBookService;
@Autowired
private OrderDetailService orderDetailService;
/**
* 用户下单
*
* @param orders
*/
@Override
@Transactional
public void submit(Orders orders) {
// 获得当前用户id
Long userId = BaseContext.getCurrentId();
// 查询当前用户的购物车数据
LambdaQueryWrapper<ShoppingCart> wrapper = new LambdaQueryWrapper<>();
wrapper.eq(ShoppingCart::getUserId, userId);
List<ShoppingCart> shoppingCartList = shoppingCartService.list(wrapper);
if(shoppingCartList == null || shoppingCartList.size() == 0) {
throw new CustomException("购物车为空，不能下单");
}
// 查询用户数据
User user = userService.getById(userId);
// 查询地址数据
Long addressBookId = orders.getAddressBookId();
AddressBook addressBook = addressBookService.getById(addressBookId);
if(addressBook == null) {
throw new CustomException("用户地址信息有误，不能下单");
}
// 生成订单号
long orderId = IdWorker.getId();
// 计算总金额
AtomicInteger amount = new AtomicInteger(0);
List<OrderDetail> orderDetails = shoppingCartList.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());
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(userId);
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()));
// 向订单表插入数据，一条数据
this.save(orders);
// 向订单明细表插入数据，多条数据
orderDetailService.saveBatch(orderDetails);
// 清空购物车
shoppingCartService.remove(wrapper);
}
}