插入购物车数据

sky-server/src/main/java/com/sky/SkyApplication.java

@@ -3,10 +3,12 @@ package com.sky;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.transaction.annotation.EnableTransactionManagement;
 
+@EnableCaching// 开启缓存注解
 @SpringBootApplication
-@EnableTransactionManagement //开启注解方式的事务管理
+@EnableTransactionManagement // 开启注解方式的事务管理
 @Slf4j
 public class SkyApplication {
     public static void main(String[] args) {

sky-server/src/main/java/com/sky/config/RedisConfiguration.java

@@ -1,12 +1,29 @@
 package com.sky.config;
 
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.cache.CacheManager;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.cache.RedisCacheConfiguration;
+import org.springframework.data.redis.cache.RedisCacheManager;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
 import org.springframework.data.redis.core.RedisTemplate;
-import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
-import org.springframework.data.redis.serializer.StringRedisSerializer;
+import org.springframework.data.redis.serializer.*;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 
 @Configuration
 @Slf4j
@@ -25,4 +42,51 @@ public class RedisConfiguration {
 
         return redisTemplate;
     }
+
+    /**
+     * 解决cache(@Cacheable)把数据缓存到redis中的value是乱码问题
+     */
+    @Bean
+    @SuppressWarnings("all")
+    public CacheManager cacheManager(RedisConnectionFactory factory) {
+        RedisSerializer<String> redisSerializer = new StringRedisSerializer();
+        // json序列化
+        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = getJackson2JsonRedisSerializer();
+        // 配置序列化
+        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
+        RedisCacheConfiguration redisCacheConfiguration = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(redisSerializer))
+                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer));
+
+        RedisCacheManager cacheManager = RedisCacheManager.builder(factory)
+                .cacheDefaults(redisCacheConfiguration)
+                .build();
+        return cacheManager;
+    }
+
+    private Jackson2JsonRedisSerializer getJackson2JsonRedisSerializer() {
+        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
+        ObjectMapper om = new ObjectMapper();
+        // 设置ObjectMapper访问权限
+        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
+        // 记录序列化之后的数据类型，方便反序列化
+        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance,
+                ObjectMapper.DefaultTyping.NON_FINAL);
+
+        // LocalDatetime序列化，默认不兼容jdk8日期序列化
+        JavaTimeModule timeModule = new JavaTimeModule();
+        timeModule.addDeserializer(LocalDate.class,
+                new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
+        timeModule.addDeserializer(LocalDateTime.class,
+                new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        timeModule.addSerializer(LocalDate.class,
+                new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
+        timeModule.addSerializer(LocalDateTime.class,
+                new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
+        // 关闭默认的日期格式化方式，默认UTC日期格式 yyyy-MM-dd’T’HH:mm:ss.SSS
+        om.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        om.registerModule(timeModule);
+
+        jackson2JsonRedisSerializer.setObjectMapper(om);
+        return jackson2JsonRedisSerializer;
+    }
 }

sky-server/src/main/java/com/sky/controller/admin/SetmealController.java

@@ -9,6 +9,7 @@ import com.sky.vo.SetmealVO;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
@@ -30,6 +31,7 @@ public class SetmealController {
      */
     @ApiOperation("新增套餐")
     @PostMapping()
+    @CacheEvict(cacheNames = "setmealCache", key = "@setmealDTO.categoryId")
     public Result<String> save(@RequestBody SetmealDTO setmealDTO) {
         setmealService.saveWithDish(setmealDTO);
         return Result.success();
@@ -70,6 +72,7 @@ public class SetmealController {
      */
     @ApiOperation("批量删除套餐")
     @DeleteMapping("")
+    @CacheEvict(cacheNames = "setmealCache", allEntries = true)
     public Result delete(@RequestParam List<Long> ids) {
         setmealService.delete(ids);
         return Result.success();
@@ -96,6 +99,7 @@ public class SetmealController {
      */
     @ApiOperation("修改套餐")
     @PutMapping()
+    @CacheEvict(cacheNames = "setmealCache", allEntries = true)
     public Result update(@RequestBody SetmealDTO setmealDTO) {
         setmealService.update(setmealDTO);
         return Result.success();

sky-server/src/main/java/com/sky/controller/user/SetmealController.java

@@ -7,7 +7,7 @@ import com.sky.service.SetmealService;
 import com.sky.vo.DishItemVO;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
-import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -27,10 +27,11 @@ public class SetmealController {
      * 条件查询
      *
      * @param categoryId Long
-     * @return Result<List<Setmeal>>
+     * @return Result<List < Setmeal>>
      */
     @GetMapping("/list")
     @ApiOperation("根据分类id查询套餐")
+    @Cacheable(cacheNames = "setmealCache", key = "#categoryId")// key值
     public Result<List<Setmeal>> list(Long categoryId) {
         Setmeal setmeal = new Setmeal();
         setmeal.setCategoryId(categoryId);
@@ -43,8 +44,8 @@ public class SetmealController {
     /**
      * 根据套餐id查询包含的菜品列表
      *
-     * @param id
-     * @return
+     * @param id Long
+     * @return Result<List < DishItemVO>>
      */
     @GetMapping("/dish/{id}")
     @ApiOperation("根据套餐id查询包含的菜品列表")

sky-server/src/main/java/com/sky/controller/user/ShoppingCartController.java

@@ -0,0 +1,37 @@
+package com.sky.controller.user;
+
+import com.sky.dto.ShoppingCartDTO;
+import com.sky.result.Result;
+import com.sky.service.ShoppingCartService;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+
+@RestController
+@RequestMapping("/user/shopping")
+@Slf4j
+@Api(tags = "C端购物车相关接口")
+public class ShoppingCartController {
+    @Resource
+    private ShoppingCartService shoppingCartService;
+
+
+    /**
+     * 添加购物车
+     *
+     * @param shoppingCartDTO ShoppingCartDTO
+     * @return Result
+     */
+    @ApiOperation("添加购物车")
+    @PostMapping("add")
+    public Result<String> add(ShoppingCartDTO shoppingCartDTO) {
+        log.info("添加购物车：{}", shoppingCartDTO);
+        shoppingCartService.addShoppingCart(shoppingCartDTO);
+        return Result.success();
+    }
+}

sky-server/src/main/java/com/sky/mapper/ShoppingCartMapper.java

@@ -0,0 +1,31 @@
+package com.sky.mapper;
+
+import com.sky.entity.ShoppingCart;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.List;
+
+@Mapper
+public interface ShoppingCartMapper {
+    /**
+     * 添加购物车
+     *
+     * @param shoppingCart ShoppingCart
+     * @return List<ShoppingCart>
+     */
+    List<ShoppingCart> list(ShoppingCart shoppingCart);
+
+    /**
+     * 如果已经存在，只需要将数量+1即可-修改商品数量
+     *
+     * @param shoppingCart ShoppingCart
+     */
+    void updateNumberById(ShoppingCart shoppingCart);
+
+    /**
+     * 插入购物车数据
+     *
+     * @param shoppingCart ShoppingCart
+     */
+    void insert(ShoppingCart shoppingCart);
+}

sky-server/src/main/java/com/sky/service/ShoppingCartService.java

@@ -0,0 +1,12 @@
+package com.sky.service;
+
+import com.sky.dto.ShoppingCartDTO;
+
+public interface ShoppingCartService {
+    /**
+     * 添加购物车
+     *
+     * @param shoppingCartDTO 购物车参数
+     */
+    void addShoppingCart(ShoppingCartDTO shoppingCartDTO);
+}

sky-server/src/main/java/com/sky/service/impl/ShoppingCartServiceImplImpl.java

@@ -0,0 +1,72 @@
+package com.sky.service.impl;
+
+import com.sky.context.BaseContext;
+import com.sky.dto.ShoppingCartDTO;
+import com.sky.entity.Dish;
+import com.sky.entity.Setmeal;
+import com.sky.entity.ShoppingCart;
+import com.sky.mapper.DishMapper;
+import com.sky.mapper.SetmealMapper;
+import com.sky.mapper.ShoppingCartMapper;
+import com.sky.service.ShoppingCartService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.BeanUtils;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Service
+@Slf4j
+public class ShoppingCartServiceImplImpl implements ShoppingCartService {
+    @Resource
+    private ShoppingCartMapper shoppingCartMapper;
+    @Resource
+    private DishMapper dishMapper;
+    @Resource
+    private SetmealMapper setmealMapper;
+
+    /**
+     * 添加购物车
+     *
+     * @param shoppingCartDTO 购物车参数
+     */
+    @Override
+    public void addShoppingCart(ShoppingCartDTO shoppingCartDTO) {
+        ShoppingCart shoppingCart = new ShoppingCart();
+        BeanUtils.copyProperties(shoppingCartDTO, shoppingCart);
+        // 获取当前id
+        Long userId = BaseContext.getCurrentId();
+        shoppingCart.setUserId(userId);
+        // 判断当前插入的购物车商品是否存在
+        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
+        // 如果已经存在，只需要将数量+1即可
+        if (list != null && !list.isEmpty()) {
+            ShoppingCart cart = list.get(0);
+            cart.setNumber(cart.getNumber() + 1);
+            shoppingCartMapper.updateNumberById(cart);
+        } else {
+            // 如果不存在。需要新建插入购物车数量
+            Long dishId = shoppingCartDTO.getDishId();
+            // 判断本次添加的是菜品还是套餐
+            if (dishId != null) {
+                // 本次添加的到购物车是菜品
+                Dish dish = dishMapper.getById(dishId);
+                shoppingCart.setName(dish.getName());
+                shoppingCart.setImage(dish.getImage());
+                shoppingCart.setAmount(dish.getPrice());
+            } else {
+                // 本次添加的是套餐
+                Long setmealId = shoppingCartDTO.getSetmealId();
+                Setmeal setmeal = setmealMapper.getById(setmealId);
+                shoppingCart.setName(setmeal.getName());
+                shoppingCart.setImage(setmeal.getImage());
+                shoppingCart.setAmount(setmeal.getPrice());
+            }
+            shoppingCart.setNumber(1);
+            shoppingCart.setCreateTime(LocalDateTime.now());
+            shoppingCartMapper.insert(shoppingCart);
+        }
+    }
+}

sky-server/src/main/resources/mapper/ShoppingCart.xml

@@ -0,0 +1,38 @@
+<?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.sky.mapper.ShoppingCartMapper">
+    <!-- 插入购物车数据 -->
+    <insert id="insert">
+        insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, number, amount,
+                                   create_time)
+        values (#{name}, #{image}, #{userId}, #{dishId}, #{setmealId}, #{dishFlavor}, #{number}, #{amount},
+                #{createTime});
+    </insert>
+
+    <!-- 如果已经存在，只需要将数量+1即可-修改商品数量 -->
+    <update id="updateNumberById">
+        update shopping_cart
+        set number = #{number}
+        where id = #{id};
+    </update>
+
+    <!-- 添加购物车 -->
+    <select id="list" resultType="com.sky.entity.ShoppingCart">
+        select *
+        from shopping_cart
+        <where>
+            <if test="userId != null">
+                and userId = #{userId}
+            </if>
+            <if test="setmealId != null">
+                and setmeal_id = #{setmealId}
+            </if>
+            <if test="dishId != null">
+                and dish_id = #{dishId}
+            </if>
+            <if test="dishFlavor != null">
+                and dish_flavor = #{dishFlavor}
+            </if>
+        </where>
+    </select>
+</mapper>