添加购物车

muyu-common/muyu-common-cache/src/main/java/com/muyu/common/cache/HashCache.java

@@ -94,4 +94,11 @@ public interface HashCache <K, HK, HV> extends DecorationKey<K> {
      */
     public void remove(K key, HK hashKey);
 
+    /**
+     * 判断redis中hashKey是否存在
+     * @param key redis键
+     * @param hashKey hash键
+     */
+    public boolean hasKey(K key, HK hashKey);
+
 }

muyu-common/muyu-common-cache/src/main/java/com/muyu/common/cache/abs/AtomicSequenceCacheAbs.java

@@ -21,7 +21,13 @@ public abstract class AtomicSequenceCacheAbs<K> implements AtomicSequenceCache<K
      */
     @Override
     public Long get (K key) {
-        return this.redisService.getCacheObject(encode(key));
+        Long cacheValue = this.redisService.getCacheObject(encode(key));
+        if (cacheValue == null){
+            Long data = getData(key);
+            cacheValue = data == null ? 0L : data;
+            this.redisService.setCacheObject(encode(key), cacheValue);
+        }
+        return cacheValue;
     }
 
     /**

muyu-common/muyu-common-cache/src/main/java/com/muyu/common/cache/abs/HashCacheAbs.java

@@ -164,6 +164,17 @@ public abstract class HashCacheAbs<K, HK, HV> implements HashCache<K, HK, HV> {
         redisService.deleteCacheMapValue(encode(key), encodeHashKey(hashKey));
     }
 
+    /**
+     * 判断redis中hashKey是否存在
+     *
+     * @param key     redis键
+     * @param hashKey hash键
+     */
+    @Override
+    public boolean hasKey (K key, HK hashKey) {
+        return redisService.hashKey(encode(key), encodeHashKey(hashKey));
+    }
+
     /**
      * 原始数据转编码数据
      * @param dataMap 原始数据

muyu-common/muyu-common-core/src/main/java/com/muyu/common/core/constant/ServiceNameConstants.java

@@ -20,4 +20,9 @@ public class ServiceNameConstants {
      * 文件服务的serviceid
      */
     public static final String FILE_SERVICE = "muyu-file";
+
+    /**
+     * 商品服务
+     */
+    public static final String PRODUCT_SERVICE = "muyu-product";
 }

muyu-common/muyu-common-redis/src/main/java/com/muyu/common/redis/service/RedisService.java

@@ -232,6 +232,15 @@ public class RedisService {
     public <T> List<T> getMultiCacheMapValue (final String key, final Collection<?> hKeys) {
         return redisTemplate.opsForHash().multiGet(key, hKeys);
     }
+    
+    /**
+     * 判断redis中hashKey是否存在
+     * @param key redis键
+     * @param hashKey hash键
+     */
+    public boolean hashKey(final String key, final String hashKey){
+        return this.redisTemplate.opsForHash().hasKey(key, hashKey);
+    }
 
     /**
      * 删除Hash中的某条数据

muyu-modules/muyu-product/muyu-product-cache/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -0,0 +1,3 @@
+com.muyu.product.cache.ProjectInfoCache
+com.muyu.product.cache.ProjectSkuCache
+com.muyu.product.cache.ProjectSkuStockCache

muyu-modules/muyu-product/muyu-product-remote/src/main/java/com/muyu/product/remote/RemoteProjectSkuService.java

@@ -0,0 +1,33 @@
+package com.muyu.product.remote;
+
+import com.muyu.common.core.constant.ServiceNameConstants;
+import com.muyu.common.core.domain.Result;
+import com.muyu.product.domain.ProjectSkuInfo;
+import com.muyu.product.remote.factory.RemoteProjectSkuFactory;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+/**
+ * @author DongZl
+ * @description: 远程调用业务层
+ * @Date 2024-4-7 上午 10:58
+ */
+@FeignClient(
+        contextId = "remoteProjectSkuService",
+        value = ServiceNameConstants.PRODUCT_SERVICE,
+        fallbackFactory = RemoteProjectSkuFactory.class,
+        path = "/sku"
+)
+public interface RemoteProjectSkuService {
+
+    /**
+     * 通过商品ID和SKU获取SKU信息
+     * @param projectId 商品ID
+     * @param projectSku 商品SKU
+     * @return 商品SKU信息
+     */
+    @GetMapping("/info/{projectId}/{projectSku}")
+    public Result<ProjectSkuInfo> getInfoByProjectIdAndSku(@PathVariable("projectId") Long projectId,
+                                                           @PathVariable("projectSku") String projectSku);
+}

muyu-modules/muyu-product/muyu-product-remote/src/main/java/com/muyu/product/remote/factory/RemoteProjectSkuFactory.java

@@ -0,0 +1,23 @@
+package com.muyu.product.remote.factory;
+
+import com.muyu.common.core.domain.Result;
+import com.muyu.product.domain.ProjectSkuInfo;
+import com.muyu.product.remote.RemoteProjectSkuService;
+import org.springframework.cloud.openfeign.FallbackFactory;
+
+/**
+ * @author DongZl
+ * @description: 远程调熔断器
+ * @Date 2024-4-7 上午 10:59
+ */
+public class RemoteProjectSkuFactory implements FallbackFactory<RemoteProjectSkuService> {
+    @Override
+    public RemoteProjectSkuService create (Throwable cause) {
+        return new RemoteProjectSkuService() {
+            @Override
+            public Result<ProjectSkuInfo> getInfoByProjectIdAndSku (Long projectId, String projectSku) {
+                return Result.error(cause.getMessage());
+            }
+        };
+    }
+}

muyu-modules/muyu-product/muyu-product-remote/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -0,0 +1 @@
+com.muyu.product.remote.factory.RemoteProjectSkuFactory

muyu-modules/muyu-product/muyu-product-server/src/main/java/com/muyu/product/cache/impl/ProjectSkuStockDataImpl.java

@@ -21,10 +21,7 @@ public class ProjectSkuStockDataImpl implements ProjectSkuStockData {
 
     @Override
     public Long getData (SkuStockKey key) {
-        LambdaQueryWrapper<ProjectSkuInfo> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(ProjectSkuInfo::getProjectId, key.getProjectId());
-        queryWrapper.eq(ProjectSkuInfo::getSku, key.getSku());
-        ProjectSkuInfo projectSkuInfo = projectSkuInfoService.getOne(queryWrapper);
+        ProjectSkuInfo projectSkuInfo = projectSkuInfoService.getInfoByProjectIdAndSku(key.getProjectId(), key.getSku());
         return projectSkuInfo.getStock();
     }
 }

muyu-modules/muyu-product/muyu-product-server/src/main/java/com/muyu/product/controller/ProjectSkuInfoController.java

@@ -75,6 +75,18 @@ public class ProjectSkuInfoController extends BaseController {
         return Result.success(projectSkuInfoService.getById(id));
     }
 
+    /**
+     * 通过商品ID和SKU获取SKU信息
+     * @param projectId 商品ID
+     * @param projectSku 商品SKU
+     * @return 商品SKU信息
+     */
+    @GetMapping("/info/{projectId}/{projectSku}")
+    public Result<ProjectSkuInfo> getInfoByProjectIdAndSku(@PathVariable("projectId") Long projectId,
+                                                     @PathVariable("projectSku") String projectSku){
+        return Result.success(projectSkuInfoService.getInfoByProjectIdAndSku(projectId, projectSku));
+    }
+
     /**
      * 新增商品SKU
      */

muyu-modules/muyu-product/muyu-product-server/src/main/java/com/muyu/product/service/ProjectSkuInfoService.java

@@ -19,4 +19,11 @@ public interface ProjectSkuInfoService extends IService<ProjectSkuInfo> {
      */
     public List<ProjectSkuInfo> list(ProjectSkuInfo projectSkuInfo);
 
+    /**
+     * 通过商品ID和SKU获取SKU信息
+     * @param projectId 商品ID
+     * @param projectSku 商品SKU
+     * @return 商品SKU信息
+     */
+    ProjectSkuInfo getInfoByProjectIdAndSku (Long projectId, String projectSku);
 }

muyu-modules/muyu-product/muyu-product-server/src/main/java/com/muyu/product/service/impl/ProjectSkuInfoServiceImpl.java

@@ -58,4 +58,20 @@ public class ProjectSkuInfoServiceImpl extends ServiceImpl<ProjectSkuInfoMapper,
 
         return list(queryWrapper);
     }
+
+    /**
+     * 通过商品ID和SKU获取SKU信息
+     *
+     * @param projectId  商品ID
+     * @param projectSku 商品SKU
+     *
+     * @return 商品SKU信息
+     */
+    @Override
+    public ProjectSkuInfo getInfoByProjectIdAndSku (Long projectId, String projectSku) {
+        LambdaQueryWrapper<ProjectSkuInfo> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(ProjectSkuInfo::getProjectId, projectId);
+        queryWrapper.eq(ProjectSkuInfo::getSku, projectSku);
+        return this.getOne(queryWrapper);
+    }
 }

muyu-modules/muyu-shop-cart/muyu-shop-cart-common/src/main/java/com/muyu/shop/cart/domain/CartInfo.java

@@ -82,9 +82,7 @@ public class CartInfo extends BaseEntity {
         return CartInfo.builder()
                 .projectId(cartInfoSaveReq.getProjectId())
                 .projectSku(cartInfoSaveReq.getProjectSku())
-                .userId(cartInfoSaveReq.getUserId())
                 .num(cartInfoSaveReq.getNum())
-                .isSelected(cartInfoSaveReq.getIsSelected())
                 .build();
     }
 

muyu-modules/muyu-shop-cart/muyu-shop-cart-common/src/main/java/com/muyu/shop/cart/domain/req/CartInfoSaveReq.java

@@ -23,34 +23,17 @@ public class CartInfoSaveReq extends BaseEntity {
 
     private static final long serialVersionUID = 1L;
 
-    /** 主键 */
-
-    @ApiModelProperty(name = "主键", value = "主键")
-    private Long id;
 
     /** 商品 */
-
     @ApiModelProperty(name = "商品", value = "商品", required = true)
     private Long projectId;
 
     /** SKU */
-
     @ApiModelProperty(name = "SKU", value = "SKU", required = true)
     private String projectSku;
 
-    /** 用户 */
-
-    @ApiModelProperty(name = "用户", value = "用户", required = true)
-    private Long userId;
-
     /** 数量 */
-
     @ApiModelProperty(name = "数量", value = "数量", required = true)
     private Long num;
 
-    /** 是否选中 */
-
-    @ApiModelProperty(name = "是否选中", value = "是否选中", required = true)
-    private String isSelected;
-
 }

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/pom.xml

@@ -92,6 +92,18 @@
             <artifactId>muyu-shop-cart-cache</artifactId>
         </dependency>
 
+        <!-- 商品模块 缓存 依赖 -->
+        <dependency>
+            <groupId>com.muyu</groupId>
+            <artifactId>muyu-product-cache</artifactId>
+        </dependency>
+
+        <!-- 商品模块 远程调用 依赖 -->
+        <dependency>
+            <groupId>com.muyu</groupId>
+            <artifactId>muyu-product-remote</artifactId>
+        </dependency>
+
     </dependencies>
 
     <build>

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/cache/impl/ProjectInfoDataImpl.java

@@ -0,0 +1,25 @@
+package com.muyu.shop.cart.cache.impl;
+
+import com.muyu.product.cache.datasource.ProjectInfoData;
+import com.muyu.product.domain.ProjectInfo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * @author DongZl
+ * @description: 缓存数据获取
+ * @Date 2024-3-27 下午 03:37
+ */
+@Service
+public class ProjectInfoDataImpl implements ProjectInfoData {
+
+    /**
+     * 从数据库获取数据
+     * @param key ID
+     * @return 缓存对象
+     */
+    @Override
+    public ProjectInfo getData (Long key) {
+        return new ProjectInfo();
+    }
+}

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/cache/impl/ProjectSkuDataImpl.java

@@ -0,0 +1,43 @@
+package com.muyu.shop.cart.cache.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.muyu.product.cache.datasource.ProjectSkuData;
+import com.muyu.product.domain.ProjectSkuInfo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+/**
+ * @author DongZl
+ * @description: 商品SKU实现类
+ * @Date 2024-4-1 上午 11:38
+ */
+@Service
+public class ProjectSkuDataImpl implements ProjectSkuData {
+
+
+    /**
+     * 通过键获取所有的hash数据
+     * @param projectId 商品ID
+     * @return
+     */
+    @Override
+    public Map<String, ProjectSkuInfo> getData (Long projectId) {
+        return new HashMap<>();
+    }
+
+    /**
+     * 通过缓存键和hash键获取hash值
+     * @param projectId  商品ID
+     * @param projectSku 商品SKU
+     * @return hash值
+     */
+    @Override
+    public ProjectSkuInfo getData (Long projectId, String projectSku) {
+        return new ProjectSkuInfo();
+    }
+}

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/cache/impl/ProjectSkuStockDataRemoteImpl.java

@@ -0,0 +1,36 @@
+package com.muyu.shop.cart.cache.impl;
+
+import com.muyu.common.core.domain.Result;
+import com.muyu.product.cache.datasource.ProjectSkuStockData;
+import com.muyu.product.cache.key.SkuStockKey;
+import com.muyu.product.domain.ProjectSkuInfo;
+import com.muyu.product.remote.RemoteProjectSkuService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.Objects;
+
+/**
+ * @author DongZl
+ * @description: sku库存实现类
+ * @Date 2024-4-2 上午 10:53
+ */
+@Service
+public class ProjectSkuStockDataRemoteImpl implements ProjectSkuStockData {
+
+    @Autowired
+    private RemoteProjectSkuService remoteProjectSkuService;
+
+    @Override
+    public Long getData (SkuStockKey key) {
+        Result<ProjectSkuInfo> result
+                = remoteProjectSkuService.getInfoByProjectIdAndSku(key.getProjectId(), key.getSku());
+        if (Result.isSuccess(result)){
+            ProjectSkuInfo projectSkuInfo = result.getData();
+            if (!Objects.isNull(projectSkuInfo)){
+                return projectSkuInfo.getStock();
+            }
+        }
+        return 0L;
+    }
+}

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/controller/CartInfoController.java

@@ -83,7 +83,7 @@ public class CartInfoController extends BaseController {
     @PostMapping
     @ApiOperation("新增购物车")
     public Result<String> add(@RequestBody CartInfoSaveReq cartInfoSaveReq) {
-        return toAjax(cartInfoService.save(CartInfo.saveBuild(cartInfoSaveReq)));
+        return toAjax(cartInfoService.add(CartInfo.saveBuild(cartInfoSaveReq)));
     }
 
     /**

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/service/CartInfoService.java

@@ -19,4 +19,10 @@ public interface CartInfoService extends IService<CartInfo> {
      */
     public List<CartInfo> list(CartInfo cartInfo);
 
+    /**
+     * 添加购物车
+     * @param cartInfo 购物车信息
+     * @return 是否添加成功
+     */
+    boolean add (CartInfo cartInfo);
 }

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/service/impl/CartInfoServiceImpl.java

@@ -1,9 +1,19 @@
 package com.muyu.shop.cart.service.impl;
 
+import java.util.Date;
 import java.util.List;
 
+import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
+import com.muyu.common.core.exception.ServiceException;
+import com.muyu.common.core.text.Convert;
 import com.muyu.common.core.utils.ObjUtils;
+import com.muyu.common.security.utils.SecurityUtils;
+import com.muyu.product.cache.ProjectSkuStockCache;
+import com.muyu.product.cache.key.SkuStockKey;
+import com.muyu.shop.cart.cache.CartCache;
+import com.muyu.shop.cart.cache.key.CartHashKey;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.muyu.shop.cart.mapper.CartInfoMapper;
 import com.muyu.shop.cart.domain.CartInfo;
@@ -21,6 +31,12 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 @Service
 public class CartInfoServiceImpl extends ServiceImpl<CartInfoMapper, CartInfo>  implements CartInfoService {
 
+    @Autowired
+    private CartCache cartCache;
+
+    @Autowired
+    private ProjectSkuStockCache projectSkuStockCache;
+
     /**
      * 查询购物车列表
      *
@@ -52,10 +68,53 @@ public class CartInfoServiceImpl extends ServiceImpl<CartInfoMapper, CartInfo>
             queryWrapper.eq(CartInfo::getIsSelected, cartInfo.getIsSelected());
         }
 
-
-
-
-
         return list(queryWrapper);
     }
+
+    /**
+     * 添加购物车
+     *
+     * @param cartInfo 购物车信息
+     *
+     * @return 是否添加成功
+     */
+    @Override
+    public boolean add (CartInfo cartInfo) {
+        Long userId = SecurityUtils.getUserId();
+        CartHashKey cartHashKey = CartHashKey.builder()
+                .projectId(cartInfo.getProjectId())
+                .projectSku(cartInfo.getProjectSku())
+                .build();
+        SkuStockKey skuStockKey = SkuStockKey.builder()
+                .projectId(cartInfo.getProjectId())
+                .sku(cartInfo.getProjectSku())
+                .build();
+        Long skuStock = Convert.toLong(projectSkuStockCache.get(skuStockKey), -1L);
+        if (cartCache.hasKey(userId, cartHashKey)){
+            // 取出来修改
+            CartInfo cartInfoCache = cartCache.get(userId, cartHashKey);
+            cartInfoCache.setNum( cartInfoCache.getNum() + cartInfo.getNum());
+            if (skuStock < cartInfoCache.getNum()){
+                throw new ServiceException("当前库存不足");
+            }
+            LambdaUpdateWrapper<CartInfo> updateWrapper = new LambdaUpdateWrapper<>();
+            updateWrapper.set(CartInfo::getNum, cartInfoCache.getNum());
+            updateWrapper.eq(CartInfo::getId, cartInfoCache.getId());
+            this.update(updateWrapper);
+            this.cartCache.put(userId, cartHashKey, cartInfoCache);
+        }else {
+            // 存进去
+            if (skuStock < cartInfo.getNum()){
+                throw new ServiceException("当前库存不足");
+            }
+            cartInfo.setIsSelected("Y");
+            cartInfo.setUserId(userId);
+            cartInfo.setCreateBy(SecurityUtils.getUsername());
+            cartInfo.setCreateTime(new Date());
+            this.save(cartInfo);
+            this.cartCache.put(userId, cartHashKey, cartInfo);
+        }
+        return true;
+    }
+
 }

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/java/com/muyu/shop/cart/service/sourcedata/CartDataImpl.java

@@ -42,13 +42,17 @@ public class CartDataImpl implements CartData {
     /**
      * 通过缓存键和hash键获取hash值
      *
-     * @param key     缓存键
+     * @param userId  缓存键
      * @param hashKey hash键
      *
      * @return hash值
      */
     @Override
-    public CartInfo getData (Long key, CartHashKey hashKey) {
-        return null;
+    public CartInfo getData (Long userId, CartHashKey hashKey) {
+        LambdaQueryWrapper<CartInfo> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(CartInfo::getUserId, userId);
+        queryWrapper.eq(CartInfo::getProjectId, hashKey.getProjectId());
+        queryWrapper.eq(CartInfo::getProjectSku, hashKey.getProjectSku());
+        return cartInfoService.getOne(queryWrapper);
     }
 }

muyu-modules/muyu-shop-cart/muyu-shop-cart-server/src/main/resources/bootstrap.yml

@@ -4,6 +4,8 @@ server:
 
 # Spring
 spring:
+  main:
+    allow-circular-references: true
   application:
     # 应用名称
     name: muyu-shop-cart