购物车缓存

muyu-common/muyu-common-core/src/main/java/com/muyu/common/core/domain/Result.java

@@ -39,6 +39,10 @@ public class Result<T> implements Serializable {
 
     private T data;
 
+    public static <T> Result<T> buildCode(int code, String msg, T data){
+        return restResult(data, code, msg);
+    }
+
     public static <T> Result<T> success () {
         return restResult(null, SUCCESS, null);
     }
@@ -71,8 +75,6 @@ public class Result<T> implements Serializable {
         return restResult(null, code, msg);
     }
 
-
-
     public static <T> Result<T> warn () {
         return restResult(null, WARN, null);
     }

muyu-common/muyu-common-security/src/main/java/com/muyu/common/security/handler/GlobalExceptionHandler.java

@@ -66,7 +66,7 @@ public class GlobalExceptionHandler {
     public Result handleServiceException (ServiceException e, HttpServletRequest request) {
         log.error(e.getMessage(), e);
         Integer code = e.getCode();
-        return StringUtils.isNotNull(code) ? Result.error(code, e.getMessage()) : Result.error(e.getMessage());
+        return StringUtils.isNotNull(code) ? Result.buildCode(code, e.getMessage(),null) : Result.error(e.getMessage());
     }
 
     /**

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

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.muyu</groupId>
+        <artifactId>muyu-shop-cart</artifactId>
+        <version>3.6.3</version>
+    </parent>
+
+    <artifactId>muyu-shop-cart-cache</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <dependencies>
+<!--        商品服务公共依赖-->
+        <dependency>
+            <groupId>com.muyu</groupId>
+            <artifactId>muyu-shop-cart-common</artifactId>
+        </dependency>
+<!--        缓存基准依赖-->
+        <dependency>
+            <groupId>com.muyu</groupId>
+            <artifactId>muyu-common-cache</artifactId>
+        </dependency>
+    </dependencies>
+</project>

muyu-modules/muyu-shop-cart/muyu-shop-cart-cache/src/main/java/com/muy/shop/cart/cache/CartCache.java

@@ -0,0 +1,100 @@
+package com.muy.shop.cart.cache;
+
+import com.muy.shop.cart.cache.key.CartHashKey;
+import com.muy.shop.cart.cache.sourcedata.CartData;
+import com.muyu.cache.abs.HashCacheAbs;
+import com.muyu.common.core.domain.Result;
+import com.muyu.common.core.exception.ServiceException;
+import com.muyu.common.core.text.Convert;
+import com.muyu.shop.cart.domain.CartInfo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+
+/**
+ * CartCache
+ *
+ * @author DeKangLiu
+ * on 2024/4/2
+ */
+@Component
+public class CartCache extends HashCacheAbs<Long, CartHashKey, CartInfo> {
+    @Autowired
+    private CartData cartData;
+
+    /**
+     * key前缀
+     * @return key前缀
+     */
+    @Override
+    public String keyPre() {
+        return "cart:info:";
+    }
+
+    /**
+     * 解码
+     * @param redisKey 数据库键
+     * @return ID
+     */
+    @Override
+    public Long decode(String redisKey) {
+        return Convert.toLong(redisKey.replace(keyPre(),""));
+    }
+
+    /**
+     * 编码
+     * @param hashKey ID
+     * @return 键
+     */
+    @Override
+    public String encodeHashKey(CartHashKey hashKey){
+        return hashKey.getProjectId()+":"+hashKey.getProjectSku();
+    }
+
+    /**
+     * 解码
+     * @param redisHashKey 数据库键
+     * @return ID
+     */
+    @Override
+    public CartHashKey decodeHashKey(String redisHashKey) {
+        String[] split = redisHashKey.split(":");
+        return CartHashKey.builder()
+                .projectId(Convert.toLong(split[0]))
+                .projectSku(split[1])
+                .build();
+    }
+
+    /**
+     * 通过键获取所有的hash数据
+     * @param key 键
+     * @return
+     */
+    @Override
+    public Map<CartHashKey, CartInfo> getData(Long key) {
+        return cartData.getData(key);
+    }
+
+    /**
+     * 通过缓存键和hash键获取hash值
+     * @param key 缓存键
+     * @param hashKey hash键
+     * @return
+     */
+    @Override
+    public CartInfo getData(Long key, CartHashKey hashKey) {
+        return cartData.getData(key,hashKey);
+    }
+
+    @Override
+    public Map<CartHashKey, CartInfo> defaultValue() {
+        throw  new ServiceException("购物车无数据", Result.SUCCESS);
+    }
+
+    @Override
+    public CartInfo defaultHashValue() {
+        throw new ServiceException("购物车无数据",Result.SUCCESS);
+    }
+
+}

muyu-modules/muyu-shop-cart/muyu-shop-cart-cache/src/main/java/com/muy/shop/cart/cache/key/CartHashKey.java

@@ -0,0 +1,28 @@
+package com.muy.shop.cart.cache.key;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * CartHashKey
+ *
+ * @author DeKangLiu
+ * on 2024/4/2
+ */
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class CartHashKey {
+    /**
+     * 商品ID
+     */
+    private Long projectId;
+
+    /**
+     * 商品sku
+     */
+    private String projectSku;
+}

muyu-modules/muyu-shop-cart/muyu-shop-cart-cache/src/main/java/com/muy/shop/cart/cache/sourcedata/CartData.java

@@ -0,0 +1,31 @@
+package com.muy.shop.cart.cache.sourcedata;
+
+import com.muy.shop.cart.cache.key.CartHashKey;
+import com.muyu.shop.cart.domain.CartInfo;
+
+import java.util.Map;
+
+/**
+ * CartData
+ *
+ * @author DeKangLiu
+ * on 2024/4/2
+ */
+public interface CartData {
+
+
+    /**
+     * 通过键获取所有的hash数据
+     * @param key 键
+     * @return
+     */
+    public Map<CartHashKey, CartInfo> getData(Long key);
+
+    /**
+     * 通过缓存键和hash键获取1hash值
+     * @param key 缓存键
+     * @param hashKey hash值
+     * @return hash值
+     */
+    public CartInfo getData(Long key,CartHashKey hashKey);
+}

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

@@ -24,6 +24,11 @@
             <artifactId>muyu-shop-cart-common</artifactId>
             <version>${muyu.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.muyu</groupId>
+            <artifactId>muyu-shop-cart-cache</artifactId>
+            <version>${muyu.version}</version>
+        </dependency>
         <!-- SpringCloud Alibaba Nacos -->
         <dependency>
             <groupId>com.alibaba.cloud</groupId>

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

@@ -0,0 +1,53 @@
+package com.muyu.shop.cart.service.sourcedata;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.muy.shop.cart.cache.key.CartHashKey;
+import com.muy.shop.cart.cache.sourcedata.CartData;
+import com.muyu.shop.cart.domain.CartInfo;
+import com.muyu.shop.cart.service.CartInfoService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+/**
+ * CartDataImpl
+ *
+ * @author DeKangLiu
+ * on 2024/4/2
+ */
+@Service
+public class CartDataImpl implements CartData{
+    @Autowired
+    private CartInfoService cartInfoService;
+
+    /**
+     * 通过键获取所有的hash数据
+     * @param key 键
+     * @return
+     */
+    @Override
+    public Map<CartHashKey, CartInfo> getData(Long key) {
+        LambdaQueryWrapper<CartInfo> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(CartInfo::getUserId, key);
+        List<CartInfo> cartInfoList = cartInfoService.list(queryWrapper);
+        return cartInfoList.stream()
+                .collect(Collectors.toMap(cartInfo -> CartHashKey.builder().projectId(cartInfo.getProjectId()).projectSku(cartInfo.getProjectSku()).build(), cartInfo -> cartInfo));
+    }
+
+    /**
+     * 通过缓存键和hash键获取hash值
+     * @param key 缓存键
+     * @param hashKey hash值
+     * @return hash值
+     */
+    @Override
+    public CartInfo getData(Long key, CartHashKey hashKey) {
+        LambdaQueryWrapper<CartInfo> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(CartInfo::getUserId,key);
+        queryWrapper.eq(CartInfo::getProjectId,hashKey.getProjectId());
+        return cartInfoService.getOne(queryWrapper);
+    }
+}

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

@@ -15,6 +15,7 @@
         <module>muyu-shop-cart-common</module>
         <module>muyu-shop-cart-remote</module>
         <module>muyu-shop-cart-server</module>
+        <module>muyu-shop-cart-cache</module>
     </modules>
 
     <properties>

pom.xml

@@ -243,8 +243,12 @@
                 <artifactId>muyu-product-remote</artifactId>
                 <version>${muyu.version}</version>
             </dependency>
-
+            <!-- 购物车模块 缓存 依赖-->
-
+            <dependency>
+                <groupId>com.muyu</groupId>
+                <artifactId>muyu-shop-cart</artifactId>
+                <version>${muyu.version}</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>