添加购物车

waimai-admin/src/main/java/com/waimai/api/CartsController.java

@@ -0,0 +1,46 @@
+package com.waimai.api;
+
+import com.waimai.common.annotation.Anonymous;
+import com.waimai.common.core.domain.R;
+import com.waimai.web.admin.domain.Carts;
+import com.waimai.web.admin.service.ICartsService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/carts")
+@Anonymous
+public class CartsController {
+    private static long uid = 1;
+    @Autowired
+    private ICartsService cartsService;
+
+    @GetMapping("/list")
+    public R<List<Carts>> selectList() {
+        Carts c = new Carts();
+        c.setUid(uid);
+        List<Carts> carts = cartsService.selectCartsList(c);
+        return R.ok(carts);
+    }
+
+    @PostMapping
+    public R addToCart(@RequestBody Carts carts) {
+        Carts c = new Carts();
+        c.setUid(uid);
+        c.setFid(carts.getFid());
+        Carts cs = cartsService.selectCartsById(carts.getFid(), uid);
+        if (cs == null) {
+            carts.setUid(uid);
+            cartsService.insertCarts(carts);
+        } else {
+            // 数量加1
+            carts.setCount(
+                    carts.getCount() + cs.getCount()
+            );
+            cartsService.updateCarts(carts);
+        }
+        return R.ok();
+    }
+}

waimai-admin/src/main/java/com/waimai/web/admin/domain/Carts.java

@@ -0,0 +1,109 @@
+package com.waimai.web.admin.domain;
+
+import org.apache.commons.lang3.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringStyle;
+import com.waimai.common.annotation.Excel;
+import com.waimai.common.core.domain.BaseEntity;
+
+/**
+ * carts对象 carts
+ * 
+ * @author callmeyan
+ * @date 2023-04-07
+ */
+public class Carts extends BaseEntity
+{
+    private static final long serialVersionUID = 1L;
+
+    /** $column.columnComment */
+    private Long fid;
+
+    /** $column.columnComment */
+    private Long uid;
+
+    private String foodsCover;
+    private String foodsTitle;
+    private Integer foodPrice;
+
+    /** $column.columnComment */
+    @Excel(name = "${comment}", readConverterExp = "$column.readConverterExp()")
+    private Long count;
+
+    /** 状态 */
+    @Excel(name = "状态")
+    private Integer state;
+
+    public void setFid(Long fid) 
+    {
+        this.fid = fid;
+    }
+
+    public Long getFid() 
+    {
+        return fid;
+    }
+    public void setUid(Long uid) 
+    {
+        this.uid = uid;
+    }
+
+    public Long getUid() 
+    {
+        return uid;
+    }
+    public void setCount(Long count) 
+    {
+        this.count = count;
+    }
+
+    public Long getCount() 
+    {
+        return count;
+    }
+    public void setState(Integer state) 
+    {
+        this.state = state;
+    }
+
+    public Integer getState() 
+    {
+        return state;
+    }
+
+    @Override
+    public String toString() {
+        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
+            .append("fid", getFid())
+            .append("uid", getUid())
+            .append("count", getCount())
+            .append("createTime", getCreateTime())
+            .append("updateTime", getUpdateTime())
+            .append("state", getState())
+            .append("remark", getRemark())
+            .toString();
+    }
+
+    public String getFoodsCover() {
+        return foodsCover;
+    }
+
+    public void setFoodsCover(String foodsCover) {
+        this.foodsCover = foodsCover;
+    }
+
+    public String getFoodsTitle() {
+        return foodsTitle;
+    }
+
+    public void setFoodsTitle(String foodsTitle) {
+        this.foodsTitle = foodsTitle;
+    }
+
+    public Integer getFoodPrice() {
+        return foodPrice;
+    }
+
+    public void setFoodPrice(Integer foodPrice) {
+        this.foodPrice = foodPrice;
+    }
+}

waimai-admin/src/main/java/com/waimai/web/admin/mapper/CartsMapper.java

@@ -0,0 +1,63 @@
+package com.waimai.web.admin.mapper;
+
+import com.waimai.web.admin.domain.Carts;
+import org.apache.ibatis.annotations.Param;
+
+import java.util.List;
+
+/**
+ * cartsMapper接口
+ * 
+ * @author callmeyan
+ * @date 2023-04-07
+ */
+public interface CartsMapper 
+{
+    /**
+     * 查询carts
+     * 
+     * @param fid carts主键
+     * @return carts
+     */
+    public Carts selectCartsById(@Param("fid") Long fid,@Param("uid")  Long uid);
+
+    /**
+     * 查询carts列表
+     * 
+     * @param carts carts
+     * @return carts集合
+     */
+    public List<Carts> selectCartsList(Carts carts);
+
+    /**
+     * 新增carts
+     * 
+     * @param carts carts
+     * @return 结果
+     */
+    public int insertCarts(Carts carts);
+
+    /**
+     * 修改carts
+     * 
+     * @param carts carts
+     * @return 结果
+     */
+    public int updateCarts(Carts carts);
+
+    /**
+     * 删除carts
+     * 
+     * @param fid carts主键
+     * @return 结果
+     */
+    public int deleteCartsByFid(Long fid);
+
+    /**
+     * 批量删除carts
+     * 
+     * @param fids 需要删除的数据主键集合
+     * @return 结果
+     */
+    public int deleteCartsByFids(Long[] fids);
+}

waimai-admin/src/main/java/com/waimai/web/admin/service/ICartsService.java

@@ -0,0 +1,62 @@
+package com.waimai.web.admin.service;
+
+import com.waimai.web.admin.domain.Carts;
+
+import java.util.List;
+
+/**
+ * cartsService接口
+ * 
+ * @author callmeyan
+ * @date 2023-04-07
+ */
+public interface ICartsService 
+{
+    /**
+     * 查询carts
+     * 
+     * @param fid carts主键
+     * @return carts
+     */
+    public Carts selectCartsById(Long fid,Long uid);
+
+    /**
+     * 查询carts列表
+     * 
+     * @param carts carts
+     * @return carts集合
+     */
+    public List<Carts> selectCartsList(Carts carts);
+
+    /**
+     * 新增carts
+     * 
+     * @param carts carts
+     * @return 结果
+     */
+    public int insertCarts(Carts carts);
+
+    /**
+     * 修改carts
+     * 
+     * @param carts carts
+     * @return 结果
+     */
+    public int updateCarts(Carts carts);
+
+    /**
+     * 批量删除carts
+     * 
+     * @param fids 需要删除的carts主键集合
+     * @return 结果
+     */
+    public int deleteCartsByFids(Long[] fids);
+
+    /**
+     * 删除carts信息
+     * 
+     * @param fid carts主键
+     * @return 结果
+     */
+    public int deleteCartsByFid(Long fid);
+}

waimai-admin/src/main/java/com/waimai/web/admin/service/impl/CartsServiceImpl.java

@@ -0,0 +1,98 @@
+package com.waimai.web.admin.service.impl;
+
+import java.util.List;
+import com.waimai.common.utils.DateUtils;
+import com.waimai.web.admin.domain.Carts;
+import com.waimai.web.admin.mapper.CartsMapper;
+import com.waimai.web.admin.service.ICartsService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+
+/**
+ * cartsService业务层处理
+ * 
+ * @author callmeyan
+ * @date 2023-04-07
+ */
+@Service
+public class CartsServiceImpl implements ICartsService
+{
+    @Resource
+    private CartsMapper cartsMapper;
+
+    /**
+     * 查询carts
+     * 
+     * @param fid carts主键
+     * @return carts
+     */
+    @Override
+    public Carts selectCartsById(Long fid,Long uid)
+    {
+        return cartsMapper.selectCartsById(fid,uid);
+    }
+
+    /**
+     * 查询carts列表
+     * 
+     * @param carts carts
+     * @return carts
+     */
+    @Override
+    public List<Carts> selectCartsList(Carts carts)
+    {
+        return cartsMapper.selectCartsList(carts);
+    }
+
+    /**
+     * 新增carts
+     * 
+     * @param carts carts
+     * @return 结果
+     */
+    @Override
+    public int insertCarts(Carts carts)
+    {
+        carts.setCreateTime(DateUtils.getNowDate());
+        return cartsMapper.insertCarts(carts);
+    }
+
+    /**
+     * 修改carts
+     * 
+     * @param carts carts
+     * @return 结果
+     */
+    @Override
+    public int updateCarts(Carts carts)
+    {
+        carts.setUpdateTime(DateUtils.getNowDate());
+        return cartsMapper.updateCarts(carts);
+    }
+
+    /**
+     * 批量删除carts
+     * 
+     * @param fids 需要删除的carts主键
+     * @return 结果
+     */
+    @Override
+    public int deleteCartsByFids(Long[] fids)
+    {
+        return cartsMapper.deleteCartsByFids(fids);
+    }
+
+    /**
+     * 删除carts信息
+     * 
+     * @param fid carts主键
+     * @return 结果
+     */
+    @Override
+    public int deleteCartsByFid(Long fid)
+    {
+        return cartsMapper.deleteCartsByFid(fid);
+    }
+}

waimai-admin/src/main/resources/application-druid.yml

@@ -6,7 +6,7 @@ spring:
         druid:
             # 主库数据源
             master:
-                url: jdbc:mysql://localhost:3307/waimai_sys?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
+                url: jdbc:mysql://localhost:3307/waimai?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
                 username: root
                 password: 123456
             # 从库数据源

waimai-admin/src/main/resources/mapper/admin/CartsMapper.xml

@@ -0,0 +1,88 @@
+<?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.waimai.web.admin.mapper.CartsMapper">
+
+    <resultMap type="Carts" id="CartsResult">
+        <result property="fid" column="fid"/>
+        <result property="uid" column="uid"/>
+        <result property="foodsTitle" column="foodsTitle"/>
+        <result property="foodsCover" column="foodsCover"/>
+        <result property="foodPrice" column="foodPrice"/>
+        <result property="count" column="count"/>
+        <result property="createTime" column="create_time"/>
+        <result property="updateTime" column="update_time"/>
+        <result property="state" column="state"/>
+        <result property="remark" column="remark"/>
+    </resultMap>
+
+    <sql id="selectCartsVo">
+        select
+               fid, uid, count, c.create_time, c.update_time, c.state, c.remark,
+               f.title as foodsTitle,f.cover as foodsCover,f.price as foodPrice
+        from carts c, food f
+    </sql>
+
+    <select id="selectCartsList" parameterType="Carts" resultMap="CartsResult">
+        <include refid="selectCartsVo"/>
+        <where>
+            c.fid = f.id
+            <if test="count != null ">and count = #{count}</if>
+            <if test="state != null ">and state = #{state}</if>
+        </where>
+    </select>
+
+    <select id="selectCartsById" resultMap="CartsResult">
+        <include refid="selectCartsVo"/>
+        where c.fid = f.id and fid = #{fid} and uid = #{uid}
+    </select>
+
+    <insert id="insertCarts" parameterType="Carts">
+        insert into carts
+        <trim prefix="(" suffix=")" suffixOverrides=",">
+            <if test="fid != null">fid,</if>
+            <if test="uid != null">uid,</if>
+            <if test="count != null">count,</if>
+            <if test="createTime != null">create_time,</if>
+            <if test="updateTime != null">update_time,</if>
+            <if test="state != null">state,</if>
+            <if test="remark != null">remark,</if>
+        </trim>
+        <trim prefix="values (" suffix=")" suffixOverrides=",">
+            <if test="fid != null">#{fid},</if>
+            <if test="uid != null">#{uid},</if>
+            <if test="count != null">#{count},</if>
+            <if test="createTime != null">#{createTime},</if>
+            <if test="updateTime != null">#{updateTime},</if>
+            <if test="state != null">#{state},</if>
+            <if test="remark != null">#{remark},</if>
+        </trim>
+    </insert>
+
+    <update id="updateCarts" parameterType="Carts">
+        update carts
+        <trim prefix="SET" suffixOverrides=",">
+            <if test="uid != null">uid = #{uid},</if>
+            <if test="count != null">count = #{count},</if>
+            <if test="createTime != null">create_time = #{createTime},</if>
+            <if test="updateTime != null">update_time = #{updateTime},</if>
+            <if test="state != null">state = #{state},</if>
+            <if test="remark != null">remark = #{remark},</if>
+        </trim>
+        where fid = #{fid}
+    </update>
+
+    <delete id="deleteCartsByFid" parameterType="Long">
+        delete
+        from carts
+        where fid = #{fid}
+    </delete>
+
+    <delete id="deleteCartsByFids" parameterType="String">
+        delete from carts where fid in
+        <foreach item="fid" collection="array" open="(" separator="," close=")">
+            #{fid}
+        </foreach>
+    </delete>
+</mapper>