瑞吉外卖-移动端业务开发
# 瑞吉外卖-移动端业务开发
# 用户地址薄
# 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。
# 数据模型
用户的地址信息会存储在address_book表,即地址簿表中。具体表结构如下:
# 开发用户地址簿功能
- 编写实体类AddressBook
/**
* 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;
}
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- Mapper接口AddressBookMapper
@Mapper
public interface AddressBookMapper extends BaseMapper<AddressBook> {
}
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- 业务层接口AddressBookService
public interface AddressBookService extends IService<AddressBook> {
}
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- 业务层实现类AddressBookServiceImpl
@Service
public class AddressBookServiceImpl extends ServiceImpl<AddressBookMapper, AddressBook> implements AddressBookService {
}
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- 控制层AddressBookController
/**
* 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");
}
}
/**
* 删除地址
* @param id
* @return
*/
@DeleteMapping
public R<String> delete(@RequestParam("id") long id){
addressBookService.removeById(id);
return R.success("删除成功");
}
/**
* 修改地址
* @param addressBook
* @return
*/
@PutMapping
public R<String> update(@RequestBody AddressBook addressBook){
addressBookService.updateById(addressBook);
return R.success("修改成功");
}
/**
* 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));
}
}
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# 功能测试
- 添加地址信息
- 数据库
# 菜品展示
# 需求分析
用户登陆成功后跳转到系统首页面,在首页需要根据分类来显示菜品和套餐。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。
# 代码开发
# 梳理交互过程
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json文件获取数据,等后续开发购物车功能时再修改回来,如下:
# 修改DishController中的list处理器
经过上面修改,发现原来的list只有菜品信息,需要我们添加口味信息
/**
*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<>();
queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
//添加条件,查询条件为1(起售)
queryWrapper.eq(Dish:: getStatus,1);
//添加排序条件
queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
List<Dish> list = dishService.list(queryWrapper);
List<DishDto> dishDtoList = list.stream().map((item)->{
DishDto dishDto =new DishDto();
BeanUtils.copyProperties(item,dishDto);
Long categoryId = item.getCategoryId();//分类Id
//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Id
Long dishId = item.getId();
LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper=new LambdaQueryWrapper<>();
lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);
//SQL:select * from dish_flavor where dish_id = ?
List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
dishDto.setFlavors(dishFlavorList);
return dishDto;
}).collect(Collectors.toList());
return R.success(dishDtoList);
}
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经过测试,分类菜品的信息都能够正常显示,但是套餐菜品信息报404错误
- 编写处理器
/**
* 根据条件查询套餐数据
* @param setmeal
* @return
*/
@GetMapping("/list")
public R<List<Setmeal>> list(@RequestBody 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);
}
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# 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。
# 数据模型
购物车对应的数据表为shopping_cart表,具体表结构如下:
# 代码开发
# 梳理交互过程
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i去服务端,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,请求服务器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ajax请求,请求服务器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。
# 准备工作
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:
- 实体类ShoppingCart
/**
* 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;
}
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- Mapper接口ShoppingCartMapper
@Mapper
public interface ShoppingCartMapper extends BaseMapper<ShoppingCart> {
}
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- 业务层接口ShoppingCartService
public interface ShoppingCartService extends IService<ShoppingCart> {
}
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- 业务层实现类ShoppingCartServiceImpl
@Service
@Slf4j
public class ShoppingCartServiceImpl extends ServiceImpl<ShoppingCartMapper, ShoppingCart> implements ShoppingCartService {
}
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- 控制层ShoppingCartCotroller
@Slf4j
@RestController
@RequestMapping("/shoppingCart")
public class ShoppingCartController {
@Autowired
private ShoppingCartService shoppingCartService;
}
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# 添加购物车
- 购物车添加菜品或套餐,编写处理器
/**
* 添加购物车
* @param shoppingCart
* @return
*/
@PostMapping("/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){
//添加购物车的是菜品
queryWrapper.eq(ShoppingCart::getDishId,dishId);
}else {
//添加到购物车的是套餐
queryWrapper.eq(ShoppingCart::getSetmealId,shoppingCart.getSetmealId());
}
//查询当前菜品或者套餐是否在购物车中
//SQL:select * from shopping_cart where user_id = ? and dish_id/setmeal_id = ?
ShoppingCart cartServiceOne = shoppingCartService.getOne(queryWrapper);
if(cartServiceOne!=null){
//如果已经存在,就在原来数量基础上加一
Integer number = cartServiceOne.getNumber();
cartServiceOne.setNumber(number+1);
shoppingCartService.updateById(cartServiceOne);
}else {
//如果不存在,则添加购物车,数量默认就是一
shoppingCart.setNumber(1);
shoppingCart.setCreateTime(LocalDateTime.now());
shoppingCartService.save(shoppingCart);
cartServiceOne=shoppingCart;
}
return R.success(cartServiceOne);
}
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# 查看购物车
- 编写处理器
/**
* 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);
}
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# 清空购物车
- 编写处理器
/**
* 清空购物车
* @return
*/
@DeleteMapping("/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");
}
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# 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。
# 数据模型
用户下单业务对应的数据表为orders表和order_detail表:
- orders:订单表
订单表的具体表结构如下:
- order_detail:订单明细表
# 代码开发
# 梳理交互过程
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aiax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。
# 准备工作
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:
- 实体类Orders
/**
* 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;
}
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- 实体类OrderDetail
/**
* 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;
}
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- Mapper接口OrderMapper
@Mapper
public interface OrderMapper extends BaseMapper<Orders> {
}
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- Mapper接口OrderDetailMapper
@Mapper
public interface OrderDetailMapper extends BaseMapper<OrderDetail> {
}
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- Service接口OrderService
public interface OrderService extends IService<Orders> {
}
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- Service接口OrderDetailService
public interface OrderDetailService extends IService<OrderDetail> {
}
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- OrderService接口实现类OrderServiceImpl
@Slf4j
@Service
public class OrderServiceImpl extends ServiceImpl<OrderMapper, Orders> implements OrderService {
}
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- OrderDetailService接口实现类OrderDetailServiceImpl
@Slf4j
@Service
public class OrderDetailServiceImpl extends ServiceImpl<OrderDetailMapper, OrderDetail> implements OrderDetailService{
}
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- 控制层OrderController
@Slf4j
@RestController
@RequestMapping("/order")
public class OrderController {
@Autowired
private OrderService orderService;
}
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- 控制层OrderDetailController
@Slf4j
@RestController
@RequestMapping("/orderDetail")
public class OrderDetailController {
@Autowired
private OrderDetailService orderDetailService;
}
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- OrderServiceImpl
@Slf4j
@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
*/
@Transactional
@Override
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> shoppingCarts = shoppingCartService.list(wrapper);
if(shoppingCarts==null||shoppingCarts.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");
}
long orderId = IdWorker.getId();//订单号
AtomicInteger amount=new AtomicInteger(0);
List<OrderDetail> 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());
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);
//清空购物车数据
shoppingCartService.remove(wrapper);
}
}
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- 编写处理器
@PostMapping("/submit")
public R<String> submit(@RequestBody Orders orders){
log.info("订单数据:{}",orders);
orderService.submit(orders);
return R.success("下单成功");
}
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# 功能测试
- 点商务B套餐+全家福