添加购物车模块接口

src/main/java/com/example/takeawaysystemserver/controller/OrderController.java

@@ -0,0 +1,16 @@
+package com.example.takeawaysystemserver.controller;
+
+import io.swagger.annotations.Api;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author Ethereal
+ * @date 2024/7/12
+ * @description
+ */
+@RestController
+@RequestMapping("order")
+@Api(tags = "订单模块")
+public class OrderController {
+}

src/main/java/com/example/takeawaysystemserver/entity/Order.java

@@ -24,7 +24,7 @@ public class Order implements Serializable {
     private Integer userId;
 
     /**
-     * 商品ID
+     * 商家ID
      */
     private Integer shopId;
 

src/main/java/com/example/takeawaysystemserver/entity/ShoppingCart.java

@@ -0,0 +1,131 @@
+package com.example.takeawaysystemserver.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import jakarta.annotation.Nullable;
+import lombok.Data;
+
+import java.io.Serializable;
+
+/**
+ * 
+ * @TableName shopping_cart
+ */
+@TableName(value ="shopping_cart")
+@Data
+public class ShoppingCart implements Serializable {
+    /**
+     * 主键ID
+     */
+    @TableId(value = "id",type = IdType.AUTO)
+    private Integer id;
+
+    /**
+     * 名称
+     */
+    private String name;
+
+    /**
+     * 图片
+     */
+    private String image;
+
+    /**
+     * 用户ID
+     */
+    @Nullable
+    private Integer userId;
+
+    /**
+     * 菜品ID
+     */
+    @Nullable
+    private Integer dishId;
+
+    /**
+     * 口味ID
+     */
+    @Nullable
+    private Integer dishFlavorId;
+
+    /**
+     * 数量
+     */
+    private Integer number;
+
+    /**
+     * 金额
+     */
+    private Integer amount;
+
+    /**
+     * 商家ID
+     */
+    private Integer shopId;
+
+    /**
+     * 创建时间
+     */
+    private Integer createTime;
+
+    @TableField(exist = false)
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public boolean equals(Object that) {
+        if (this == that) {
+            return true;
+        }
+        if (that == null) {
+            return false;
+        }
+        if (getClass() != that.getClass()) {
+            return false;
+        }
+        ShoppingCart other = (ShoppingCart) that;
+        return (this.getId() == null ? other.getId() == null : this.getId().equals(other.getId()))
+            && (this.getName() == null ? other.getName() == null : this.getName().equals(other.getName()))
+            && (this.getImage() == null ? other.getImage() == null : this.getImage().equals(other.getImage()))
+            && (this.getUserId() == null ? other.getUserId() == null : this.getUserId().equals(other.getUserId()))
+            && (this.getDishId() == null ? other.getDishId() == null : this.getDishId().equals(other.getDishId()))
+            && (this.getDishFlavorId() == null ? other.getDishFlavorId() == null : this.getDishFlavorId().equals(other.getDishFlavorId()))
+            && (this.getNumber() == null ? other.getNumber() == null : this.getNumber().equals(other.getNumber()))
+            && (this.getAmount() == null ? other.getAmount() == null : this.getAmount().equals(other.getAmount()));
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((getId() == null) ? 0 : getId().hashCode());
+        result = prime * result + ((getName() == null) ? 0 : getName().hashCode());
+        result = prime * result + ((getImage() == null) ? 0 : getImage().hashCode());
+        result = prime * result + ((getUserId() == null) ? 0 : getUserId().hashCode());
+        result = prime * result + ((getDishId() == null) ? 0 : getDishId().hashCode());
+        result = prime * result + ((getDishFlavorId() == null) ? 0 : getDishFlavorId().hashCode());
+        result = prime * result + ((getNumber() == null) ? 0 : getNumber().hashCode());
+        result = prime * result + ((getAmount() == null) ? 0 : getAmount().hashCode());
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(getClass().getSimpleName());
+        sb.append(" [");
+        sb.append("Hash = ").append(hashCode());
+        sb.append(", id=").append(id);
+        sb.append(", name=").append(name);
+        sb.append(", image=").append(image);
+        sb.append(", userId=").append(userId);
+        sb.append(", dishId=").append(dishId);
+        sb.append(", dishFlavorId=").append(dishFlavorId);
+        sb.append(", number=").append(number);
+        sb.append(", amount=").append(amount);
+        sb.append(", serialVersionUID=").append(serialVersionUID);
+        sb.append("]");
+        return sb.toString();
+    }
+}

src/main/java/com/example/takeawaysystemserver/mapper/ShoppingCartMapper.java

@@ -0,0 +1,18 @@
+package com.example.takeawaysystemserver.mapper;
+
+import com.example.takeawaysystemserver.entity.ShoppingCart;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+* @author qiushengyu
+* @description 针对表【shopping_cart】的数据库操作Mapper
+* @createDate 2024-07-12 16:13:47
+* @Entity com.example.takeawaysystemserver.entity.ShoppingCart
+*/
+public interface ShoppingCartMapper extends BaseMapper<ShoppingCart> {
+
+}
+
+
+
+

src/main/java/com/example/takeawaysystemserver/service/OrderService.java

@@ -2,6 +2,7 @@ package com.example.takeawaysystemserver.service;
 
 import com.example.takeawaysystemserver.entity.Order;
 import com.baomidou.mybatisplus.extension.service.IService;
+import com.example.takeawaysystemserver.util.R;
 
 /**
 * @author qiushengyu
@@ -9,5 +10,10 @@ import com.baomidou.mybatisplus.extension.service.IService;
 * @createDate 2024-07-11 17:13:46
 */
 public interface OrderService extends IService<Order> {
-
+    /**
+     * 添加订单
+     * @param order 订单类
+     * @return 添加信息
+     */
+    R<String> addOrders(Order order);
 }

src/main/java/com/example/takeawaysystemserver/service/ShoppingCartService.java

@@ -0,0 +1,38 @@
+package com.example.takeawaysystemserver.service;
+
+import com.example.takeawaysystemserver.entity.ShoppingCart;
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.example.takeawaysystemserver.util.R;
+
+import java.util.List;
+
+/**
+* @author qiushengyu
+* @description 针对表【shopping_cart】的数据库操作Service
+* @createDate 2024-07-12 16:13:47
+*/
+public interface ShoppingCartService extends IService<ShoppingCart> {
+
+    /**
+     * 添加购物车
+     * @param shoppingCart 购物车类
+     * @param token 用户token
+     * @return 添加信息
+     */
+    R<String> addShoppingCart(String token, ShoppingCart shoppingCart);
+
+    /**
+     * 获取购物车信息
+     * @param token 用户token
+     * @return 购物车信息
+     */
+    R<List<ShoppingCart>> getShoppingCarts(String token);
+
+    /**
+     * 删除购物车信息
+     * @param shoppingCart 购物车类
+     * @param token 用户token
+     * @return 删除信息
+     */
+    R<String> deleteShoppingCart(String token, ShoppingCart shoppingCart);
+}

src/main/java/com/example/takeawaysystemserver/service/impl/ShoppingCartServiceImpl.java

@@ -0,0 +1,85 @@
+package com.example.takeawaysystemserver.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.example.takeawaysystemserver.entity.Shop;
+import com.example.takeawaysystemserver.entity.ShoppingCart;
+import com.example.takeawaysystemserver.service.ShoppingCartService;
+import com.example.takeawaysystemserver.mapper.ShoppingCartMapper;
+import com.example.takeawaysystemserver.service.UserService;
+import com.example.takeawaysystemserver.util.R;
+import com.example.takeawaysystemserver.util.TimeUtil;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+* @author qiushengyu
+* @description 针对表【shopping_cart】的数据库操作Service实现
+* @createDate 2024-07-12 16:13:47
+*/
+@Service
+public class ShoppingCartServiceImpl extends ServiceImpl<ShoppingCartMapper, ShoppingCart>
+    implements ShoppingCartService{
+
+    @Resource
+    private UserServiceImpl userServiceImpl;
+
+
+    @Override
+    public R<String> addShoppingCart(String token, ShoppingCart shoppingCart) {
+        Integer id = Integer.parseInt(userServiceImpl.getUserId(token));
+        shoppingCart.setUserId(id);
+        LambdaQueryWrapper<ShoppingCart> wrapper = new LambdaQueryWrapper<ShoppingCart>();
+        wrapper.eq(shoppingCart.getDishId() != null, ShoppingCart::getDishId, shoppingCart.getDishId());
+        wrapper.eq(shoppingCart.getShopId() != null, ShoppingCart::getShopId, shoppingCart.getShopId());
+
+        ShoppingCart one = getOne(wrapper);
+        //根据商家ID、菜品ID查询数据库是否已有
+        if (one != null){
+            //有就+1
+            shoppingCart.setId(one.getId());
+            shoppingCart.setNumber(one.getNumber() + 1);
+            updateById(shoppingCart);
+        }else {
+            //没有就添加购物车
+            Integer createTime = TimeUtil.getCurTimestamp();
+            shoppingCart.setCreateTime(createTime);
+            save(shoppingCart);
+        }
+        return R.ok("添加成功");
+    }
+
+    @Override
+    public R<List<ShoppingCart>> getShoppingCarts(String token) {
+        Integer id = Integer.parseInt(userServiceImpl.getUserId(token));
+        LambdaQueryWrapper<ShoppingCart> wrapper = new LambdaQueryWrapper<ShoppingCart>();
+        wrapper.orderByDesc(ShoppingCart::getCreateTime);
+        wrapper.eq(ShoppingCart::getUserId, id);
+        return R.ok(list(wrapper));
+    }
+
+    @Override
+    public R<String> deleteShoppingCart(String token, ShoppingCart shoppingCart) {
+        Integer id = Integer.parseInt(userServiceImpl.getUserId(token));
+        shoppingCart.setUserId(id);
+        LambdaQueryWrapper<ShoppingCart> wrapper = new LambdaQueryWrapper<ShoppingCart>();
+        wrapper.eq(shoppingCart.getDishId() != null, ShoppingCart::getDishId, shoppingCart.getDishId());
+        wrapper.eq(shoppingCart.getShopId() != null, ShoppingCart::getShopId, shoppingCart.getShopId());
+        ShoppingCart one = getOne(wrapper);
+
+        if (one.getNumber() == 1){
+            removeById(one.getId());
+        }else {
+            shoppingCart.setId(one.getId());
+            shoppingCart.setNumber(one.getNumber() - 1);
+            updateById(shoppingCart);
+        }
+        return R.ok("删除成功");
+    }
+}
+
+
+
+

src/main/resources/mapper/ShoppingCartMapper.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.example.takeawaysystemserver.mapper.ShoppingCartMapper">
+
+    <resultMap id="BaseResultMap" type="com.example.takeawaysystemserver.entity.ShoppingCart">
+            <id property="id" column="id" jdbcType="INTEGER"/>
+            <result property="name" column="name" jdbcType="VARCHAR"/>
+            <result property="image" column="image" jdbcType="VARCHAR"/>
+            <result property="userId" column="user_id" jdbcType="INTEGER"/>
+            <result property="dishId" column="dish_id" jdbcType="INTEGER"/>
+            <result property="dishFlavorId" column="dish_flavor_id" jdbcType="INTEGER"/>
+            <result property="number" column="number" jdbcType="INTEGER"/>
+            <result property="amount" column="amount" jdbcType="INTEGER"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id,name,image,
+        user_id,dish_id,dish_flavor_id,
+        number,amount
+    </sql>
+</mapper>