六，购物⻋与订单

最新推荐文章于 2025-06-13 19:27:08 发布

王宇辉

最新推荐文章于 2025-06-13 19:27:08 发布

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文章标签： java 数据库 redis

本文链接：https://blog.youkuaiyun.com/weixin_42688085/article/details/125414387

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本文主要介绍了在微服务架构下购物车和订单的实现，包括购物车的登录状态处理、数据存储和微服务搭建。购物车数据在用户登录后存储于Redis，未登录时使用Cookie或SessionStorage。文章详细讲解了添加购物车的实现思路、代码结构以及微服务之间的认证过程。同时，还涵盖了订单结算、收件地址查询、库存管理和积分增加等功能的实现细节和代码示例。

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六，购物⻋

6.1购物⻋

购物⻋分为⽤户登录购物⻋和未登录购物⻋操作，国内知名电商京东⽤户登录和不登录都可以操作购物⻋，如果⽤户不登录，操作购物⻋可以将数据存储到Cookie或者WebSQL或者SessionStorage中，⽤户登录后购物⻋数据可以存储到Redis中，再将之前未登录加⼊的购物⻋合并到Redis中即可。
京东购物⻋⽅案：
在这里插入图片描述
天猫则采⽤了另外⼀种实现⽅案，⽤户要想将商品加⼊购物⻋，必须先登录才能操作购物⻋。我们今天实现的购物⻋是天猫解决⽅案，即⽤户必须先登录才能使⽤购物⻋功能。

6.1.1 购物⻋分析

(1)需求分析

⽤户在商品详细⻚点击加⼊购物⻋，提交商品SKU编号和购买数量，添加到购物⻋。购物⻋展示⻚⾯如下：

(2)购物⻋实现思路

在这里插入图片描述
我们实现的是⽤户登录后的购物⻋，⽤户将商品加⼊购物⻋的时候，直接将要加⼊购物⻋的详情存⼊到Redis即可。每次查看购物⻋的时候直接从Redis中获取。

(3)表结构分析

⽤户登录后将商品加⼊购物⻋，需要存储商品详情以及购买数量，购物⻋详情表如下：数据中order_item_表：

CREATE TABLE `order_item_` (
 `id` varchar(20) COLLATE utf8_bin NOT NULL COMMENT 'ID',
 `category_id1` int(11) DEFAULT NULL COMMENT '1级分类',
 `category_id2` int(11) DEFAULT NULL COMMENT '2级分类',
 `category_id3` int(11) DEFAULT NULL COMMENT '3级分类',
 `spu_id` varchar(20) COLLATE utf8_bin DEFAULT NULL COMMENT 'SPU_ID',
 `sku_id` bigint(20) NOT NULL COMMENT 'SKU_ID',
 `order_id` bigint(20) NOT NULL COMMENT '订单ID',
 `name` varchar(200) COLLATE utf8_bin DEFAULT NULL COMMENT '商品名称',
 `price` int(20) DEFAULT NULL COMMENT '单价',
 `num` int(10) DEFAULT NULL COMMENT '数量',
 `money` int(20) DEFAULT NULL COMMENT '总⾦额',
 `pay_money` int(11) DEFAULT NULL COMMENT '实付⾦额',
 `image` varchar(200) COLLATE utf8_bin DEFAULT NULL COMMENT '图⽚地址',
 `weight` int(11) DEFAULT NULL COMMENT '重量',
 `post_fee` int(11) DEFAULT NULL COMMENT '运费',
 `is_return` char(1) COLLATE utf8_bin DEFAULT NULL COMMENT '是否退货',
 PRIMARY KEY (`id`),
 KEY `item_id` (`sku_id`),
 KEY `order_id` (`order_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

购物⻋详情表其实就是订单详情表结构，只是⽬前临时存储数据到Redis，等⽤户下单后才将数据从Redis取出存⼊到MySQL中。

6.1.2 搭建订单购物⻋微服务

因为购物⻋功能⽐较简单，这⾥我们把订单和购物⻋微服务放在⼀个⼯程下
在这里插入图片描述

(1) pom.xml

legou-order/pom.xml

<?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">
  <parent>
    <artifactId>legou-parent</artifactId>
    <groupId>com.lxs</groupId>
    <version>1.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>legou-order</artifactId>
  <packaging>pom</packaging>
  <modules>
    <module>legou-order-interface</module>
    <module>legou-order-service</module>
  </modules>
</project>

legou-order/legou-order-interface/pom.xml

<?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">
  <parent>
    <artifactId>legou-order</artifactId>
    <groupId>com.lxs</groupId>
    <version>1.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>legou-order-interface</artifactId>
  <dependencies>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-openfeign</artifactId>
    </dependency>
    <dependency>
      <groupId>com.lxs</groupId>
      <artifactId>legou-core</artifactId>
      <version>${project.version}</version>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <scope>provided</scope>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <configuration>
          <mainClass>com.core.Starter</mainClass>
          <layout>ZIP</layout>
          <classifier>exec</classifier>
          <includeSystemScope>true</includeSystemScope>
        </configuration>
        <executions>
          <execution>
            <goals>
              <goal>repackage</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</project>

legou-order/legou-order-service/pom.xml

<?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">
  <parent>
    <artifactId>legou-order</artifactId>
    <groupId>com.lxs</groupId>
    <version>1.0-SNAPSHOT</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <artifactId>legou-order-service</artifactId>
  <dependencies>
    <!-- redis 使⽤-->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-openfeign</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-config</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.retry</groupId>
      <artifactId>spring-retry</artifactId>
    </dependency>
    <dependency>
      <groupId>com.lxs</groupId>
      <artifactId>legou-core</artifactId>
      <version>${project.version}</version>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.46</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>com.lxs</groupId>
      <artifactId>legou-order-interface</artifactId>
      <version>${project.version}</version>
    </dependency>
    <!--商品微服务-->
    <dependency>
      <groupId>com.lxs</groupId>
      <artifactId>legou-item-instance</artifactId>
      <version>${project.version}</version>
    </dependency>
    <!-- swagger -->
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger2</artifactId>
      <version>2.9.2</version>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger-ui</artifactId>
      <version>2.9.2</version>
    </dependency>
    <!--oauth2-->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-oauth2</artifactId>
    </dependency>
  </dependencies>
</project>

(2) 启动器配置⽂件

在这里插入图片描述
public.key 拷⻉即可
legou-order/legou-order-service/src/main/resources/bootstrap.yml

spring:
  application:
    name: order-service
  # 多个接⼝上的@FeignClient(“相同服务名”)会报错，overriding is disabled。
  # 设置 为true ,即 允许 同名
  main:
    allow-bean-definition-overriding: true

config-repo/order-service.yml

server:
  port: 9009

spring:
  redis:
    host: 192.168.220.110
    port: 6379

mybatis-plus:
  mapper-locations: classpath*:mybatis/*/*.xml
  type-aliases-package: com.lxs.legou.*.po
  configuration:
    # 下划线驼峰转换
    map-underscore-to-camel-case: true
    lazy-loading-enabled: true
    aggressive-lazy-loading: false

logging:
  #file: demo.log
  pattern:
    console: "%d - %msg%n"
  level:
    org.springframework.web: debug
    com.lxs: debug

security:
  oauth2:
    resource:
      jwt:
       key-uri: http://localhost:9098/oauth/token_key #如果使⽤JWT，可以获取公钥⽤于 token 的验签

legou-order/legou-order-service/src/main/java/com/legou/order/OrderApplication.java

package com.legou.order;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;

/**
 * @author
 * @version 1.0
 * @description 订单微服务
 * @createDate 2022/6/20 16:50
 **/
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
@EnableCircuitBreaker
public class OrderApplication {
   
    public static void main(String[] args) {
   
        SpringApplication.run(OrderApplication.class, args);
    }
}

(3)配置类

配置类和其他资源微服务⼯程类似，拷⻉修改即可
legou-order/legou-order-service/src/main/java/com/legou/order/config/MybatisPlusConfig.java

package com.legou.order.config;

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import com.github.pagehelper.PageInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author
 * @version 1.0
 * @description
 * @createDate 2022/6/20 16:52
 **/
@Configuration
@MapperScan("com.lxs.legou.order.dao")
public class MybatisPlusConfig {
   
    /**
     * 分⻚插件
     */
    @Bean
    public PaginationInterceptor paginationInterceptor() {
   
        // 开启 count 的 join 优化,只针对 left join !!!
        return new PaginationInterceptor().setCountSqlParser(new JsqlParserCountOptimize(true));
    }

    @Bean
    public PageInterceptor pageInterceptor() {
   
        return new PageInterceptor();
    }
}

legou-order/legou-order-

service/src/main/java/com/legou/order/config/JwtConfig.java
package com.legou.order.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.store.JwtTokenStore;
import org.springframework.util.FileCopyUtils;
import java.io.IOException;

/**
 * @author
 * @version 1.0
 * @description
 * @createDate 2022/6/20 16:54
 **/
@Configuration
public class JwtConfig {
   

    public static final String public_cert = "mickey_public.key";

    @Autowired
    private JwtAccessTokenConverter jwtAccessTokenConverter;
    @Bean
    @Qualifier("tokenStore"

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