RocketMQ专题02
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1. 案例介绍
B站视频：黑马程序员RocketMQ系统精讲 P35 - P88
手敲shop源码: 代码地址
1.1 业务分析
模拟电商网站购物场景中的【下单】和【支付】业务。
1.1.1 下单
- 用户请求订单系统下单.
- 订单系统通过RPC调用订单服务下单.
- 订单服务调用优惠券服务，扣减优惠券
- 订单服务调用库存服务，校验并扣减库存
- 订单服务调用用户服务，扣减用户余额
- 订单服务完成确认订单
1.1.2 支付
- 用户发起支付请求
- 支付系统调用第三方支付平台API进行发起支付流程
- 用户通过第三方支付平台支付成功后， 第三方支付平台回调通知支付系统
- 支付系统调用订单服务修改订单状态
- 支付系统调用积分服务添加积分
- 支付系统调用日志服务记录日志
1.2 问题分析
1.2.1 问题1
用户提交订单后，扣减库存成功，扣减优惠券成功，使用余额成功； 但是在确认订单操作失败， 需要对库存，优惠券，余额进行回退。如果保证数据的完整性？
UML图, 使用MQ保证在下单失败后系统数据的完整性。
1.2.2 问题2
用户通过第三方支付平台（支付宝，微信）支付成功后，第三方支付平台要通过回调API异步通知商家支付系统用户的支付结果， 支付系统根据支付结果修改订单状态、记录支付日志和给用户增加积分。
商家支付系统如何保证在收到第三方支付平台的异步通知时，如何快速给第三方支付平台做出回应？
通过MQ进行数据分发，提高系统处理性能。
2. 技术分析
2.1 技术选型
- SpringBoot
- Dubbo
- Zookeeper
- RocketMQ
- MySql
2.2 SpringBoot整合RocketMQ
下载 rocketmq-spring 项目
将rocketmq-spring安装到本地仓库, 对应的就是依赖 rocketmq-spring-boot-starter
mvn install -Dmaven.skip.test=true
2.2.1 消息生产者
1）添加依赖
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.6.7version>
<relativePath/>
parent>
<groupId>com.cryswgroupId>
<artifactId>boot-rocketmqartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>boot-rocketmqname>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<maven.compiler.source>1.8maven.compiler.source>
<maven.compiler.target>1.8maven.compiler.target>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.apache.rocketmqgroupId>
<artifactId>rocketmq-spring-boot-starterartifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<optional>trueoptional>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
exclude>
excludes>
configuration>
plugin>
plugins>
build>
project>
2） 配置文件
application.properties文件添加如下配置内容：
# nameserver
rocketmq.name-server=rocketmq-nameserver1:9876;rocketmq-nameserver2:9876
# 生产者组名
rocketmq.producer.group=my-group
3）启动类
@SpringBootApplication
public class BootRocketmqApplication {
public static void main(String[] args) {
SpringApplication.run(BootRocketmqApplication.class, args);
}
}
4）测试类
@SpringBootTest
public class ProducerTest {
@Autowired
private RocketMQTemplate rocketMQTemplate;
@Test
public void testSendMsg() {
rocketMQTemplate.convertAndSend("springboot-rocketmq", "hello springboot-rocketmq");
}
}
查看rocketmq-console控制台
2.2.2 消息消费者
1）添加依赖
同消息生产者。
2）配置文件
# nameserver
rocketmq.name-server=rocketmq-nameserver1:9876;rocketmq-nameserver2:9876
# 消费者组名
rocketmq.consumer.group=my-group
3）启动类
同消息生产者。
4）消息监听器
@Component // 将消息监听器注入中IOC容器中
@RocketMQMessageListener(topic = "springboot-rocketmq", consumerGroup = "${rocketmq.consumer.group}")
@Slf4j
public class Consumer implements RocketMQListener<String> {
@Override
public void onMessage(String s) {
System.out.println("接收到消息: " + s);
}
}
5）测试
启动应用后，查看消费者打印的日志
2022-06-22 22:31:58.228 INFO 17644 --- [ main] a.r.s.s.DefaultRocketMQListenerContainer : running container: DefaultRocketMQListenerContainer{consumerGroup='my-group', namespace='', nameServer='rocketmq-nameserver1:9876;rocketmq-nameserver2:9876', topic='springboot-rocketmq', consumeMode=CONCURRENTLY, selectorType=TAG, selectorExpression='*', messageModel=CLUSTERING', tlsEnable=false}
2022-06-22 22:31:58.230 INFO 17644 --- [ main] o.a.r.s.a.ListenerContainerConfiguration : Register the listener to container, listenerBeanName:consumer, containerBeanName:org.apache.rocketmq.spring.support.DefaultRocketMQListenerContainer_1
2022-06-22 22:31:58.270 INFO 17644 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2022-06-22 22:31:58.286 INFO 17644 --- [ main] c.c.b.BootRocketmqApplication : Started BootRocketmqApplication in 7.152 seconds (JVM running for 9.301)
# 消费的消息内容
接收到消息: hello springboot
接收到消息: hello springboot-rocketmq
2.3 SpringBoot整合Dubbo
下载 dubbo-spring-boot-starter 依赖包。
将dubbo-spring-boot-starter安装到本地仓库，其实下面引入依赖也是一样的。
mvn install -Dmaven.skip.test=true
dubbo调用的流程图
- start：
- register：注册服务提供方到注册中心zookeeper
- subscribe：服务消费者到注册中心查找服务提供方信息
- notify：服务提供方信息发生变更，注册中心通知到服务消费者
- invoke：服务消费者发起远程调用
- count：上报服务提供方和消费方信息进行监控，从而实现服务治理
2.3.1 搭建Zookeeper集群
1）准备工作
-
安装JDK
-
将Zookeeper上传到服务器
-
解压Zookeeper到服务器指定目录, 并创建data目录，将conf下的
zoo_sample.cfg文件改为zoo.cfgtar -zxvf apache-zookeeper-3.6.3-bin.tar.gz mv zoo_sample.cfg zoo.cfg -
建立
/usr/local/zookeeper-cluster， 将解压后的Zookeeper复制到以下三个目录# 复制三份 cp -rf apache-zookeeper-3.6.3-bin /usr/local/zookeeper-cluster/zookeeper-1 cp -rf apache-zookeeper-3.6.3-bin /usr/local/zookeeper-cluster/zookeeper-2 cp -rf apache-zookeeper-3.6.3-bin /usr/local/zookeeper-cluster/zookeeper-3 -
在zoo.cfg中配置每一个Zookeeper的dataDir, clientPort分别为2181、2182、2183；
修改
/usr/local/zookeeper-cluster/zookeeper-1/conf/zoo.cfgclientPort=2181 dataDir=/usr/local/zookeeper-cluster/zookeeper-1/data修改
/usr/local/zookeeper-cluster/zookeeper-2/conf/zoo.cfgclientPort=2182 dataDir=/usr/local/zookeeper-cluster/zookeeper-2/data修改
/usr/local/zookeeper-cluster/zookeeper-3/conf/zoo.cfgclientPort=2183 dataDir=/usr/local/zookeeper-cluster/zookeeper-3/data
2）配置集群
-
在每个zookeeper的data目录下创建一个myid文件，内容分别是1，2，3。这个文件就是记录每个服务器的ID。
touch zookeeper-1/data/myidmv my touch zookeeper-2/data/myid touch zookeeper-3/data/myid -
在每一个zookeeper的
zoo.cfg配置客户端访问端口（clientPort）和集群服务器IP列表。集群服务器IP列表如下：server.1=192.168.65.129:2881:3881 server.2=192.168.65.129:2882:3882 server.3=192.168.65.129:2883:3883server.服务器ID=服务器IP地址
:服务器之间通信端口:服务器之间投票选举端口
3） 启动集群
启动集群， 即分别启动每个zk实例：
[root@centos7-01 zookeeper-cluster]# ./zookeeper-1/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-cluster/zookeeper-1/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@centos7-01 zookeeper-cluster]# ./zookeeper-2/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-cluster/zookeeper-2/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@centos7-01 zookeeper-cluster]# ./zookeeper-3/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /usr/local/zookeeper-cluster/zookeeper-3/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
2.3.2 RPC服务接口
编写服务提供方的接口。
public interface IUserService {
String sayHello(String name);
}
2.3.3 服务提供方
1）添加依赖
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.1.RELEASEversion>
<relativePath/>
parent>
<groupId>com.crysw.shopgroupId>
<artifactId>springboot-dubbo-providerartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>springboot-dubbo-providername>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
properties>
<dependencies>
<dependency>
<groupId>com.alibaba.spring.bootgroupId>
<artifactId>dubbo-spring-boot-starterartifactId>
<version>2.0.0version>
dependency>
<dependency>
<groupId>com.crysw.shopgroupId>
<artifactId>springboot-dubbo-interfaceartifactId>
<version>0.0.1-SNAPSHOTversion>
dependency>
<dependency>
<groupId>org.apache.zookeepergroupId>
<artifactId>zookeeperartifactId>
<version>3.4.10version>
<exclusions>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
exclusion>
<exclusion>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>com.101tecgroupId>
<artifactId>zkclientartifactId>
<version>0.9version>
<exclusions>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<optional>trueoptional>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
exclude>
excludes>
configuration>
plugin>
plugins>
build>
project>
2）配置文件内容
# application.properties
server.port=8080
spring.application.name=dubbo-demo-provider
spring.dubbo.application.id=dubbo-demo-provider
spring.dubbo.application.name=dubbo-demo-provider
spring.dubbo.registry.address=zookeeper://192.168.65.129:2181;zookeeper://192.168.65.129:2182;zookeeper://192.168.65.129:2183
spring.dubbo.server=true
spring.dubbo.protocol.name=dubbo
spring.dubbo.protocol.port=20880
3）启动类
package com.crysw.shop.provider;
import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* @author crysw
*/
@SpringBootApplication
@EnableDubboConfiguration // 开启dubbo配置
public class SpringbootDubboProviderApplication {
public static void main(String[] args) {
SpringApplication.run(SpringbootDubboProviderApplication.class, args);
}
}
4）提供接口服务的实现
package com.crysw.shop.provider.service.impl;
import com.alibaba.dubbo.config.annotation.Service;
import com.crysw.shop.infc.service.IUserService;
import org.springframework.stereotype.Component;
/**
* 描述：服务提供方的接口实现
* @author crysw
* @date 2022/6/29 22:17
* @version 1.0
*/
// 为了不与dubbo包下的@service冲突，这里使用@Component声明Bean
@Component
// 注意应该为dubbo包下的@Service, 与接口进行绑定
@Service(interfaceClass = IUserService.class)
public class UserServiceImpl implements IUserService {
@Override
public String sayHello(String name) {
return "hello, dubbo, i'm " + name;
}
}
2.3.4 服务消费方
1）添加依赖
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.1.RELEASEversion>
<relativePath/>
parent>
<groupId>com.crysw.shopgroupId>
<artifactId>springboot-dubbo-consumerartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>springboot-dubbo-consumername>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
properties>
<dependencies>
<dependency>
<groupId>com.alibaba.spring.bootgroupId>
<artifactId>dubbo-spring-boot-starterartifactId>
<version>2.0.0version>
dependency>
<dependency>
<groupId>com.crysw.shopgroupId>
<artifactId>springboot-dubbo-interfaceartifactId>
<version>0.0.1-SNAPSHOTversion>
dependency>
<dependency>
<groupId>org.apache.zookeepergroupId>
<artifactId>zookeeperartifactId>
<version>3.4.10version>
<exclusions>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
exclusion>
<exclusion>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>com.101tecgroupId>
<artifactId>zkclientartifactId>
<version>0.9version>
<exclusions>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
exclusion>
exclusions>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
<optional>trueoptional>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
exclude>
excludes>
configuration>
plugin>
plugins>
build>
project>
2）配置文件
server.port=8081
spring.application.name=dubbo-demo-consumer
spring.dubbo.application.name=dubbo-demo-consumer
spring.dubbo.application.id=dubbo-demo-consumer
spring.dubbo.registry.address=zookeeper://192.168.65.129:2181;zookeeper://192.168.65.129:2182;zookeeper://192.168.65.129:2183
3）启动类
package com.crysw.shop.consumer;
import com.alibaba.dubbo.spring.boot.annotation.EnableDubboConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* @author crysw
*/
@SpringBootApplication
@EnableDubboConfiguration
public class SpringbootDubboConsumerApplication {
public static void main(String[] args) {
SpringApplication.run(SpringbootDubboConsumerApplication.class, args);
}
}
4）编写Controller
package com.crysw.shop.consumer.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import com.crysw.shop.infc.service.IUserService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* 描述：
* @author crysw
* @date 2022/7/2 14:25
* @version 1.0
*/
@RestController
@RequestMapping("/user")
public class UserController {
@Reference // dubbo的注解
private IUserService userService;
@RequestMapping("/sayHello")
public String sayHello(String name) {
return userService.sayHello(name);
}
}
2.3.5 测试dubbo接口调用
1）启动服务提供方
查看启动日志，连接zookeeper成功。
启动服务消费方，一样连接上zookeeper，并从zk注册中心获取服务提供方的主机，端口等信息。在浏览器访问http://localhost:8081/user/sayHello?name=crysw
3. 环境搭建
3.1 数据库
1）优惠券表
表名：trade_coupon
| Field | Type | Comment |
|---|---|---|
| coupon_id | bigint(50) not null | 优惠券ID |
| coupon_price | decimal(10,2) null | 优惠券金额 |
| user_id | bigint(50) null | 用户ID |
| order_id | bigint(32) null | 订单ID |
| is_used | int(1) null | 是否使用 0-未使用 1-已使用 |
| used_time | timestamp null | 使用时间 |
2）商品表
表名：trade_goods
| Field | Type | Comment |
|---|---|---|
| goods_id | bigint(50) not null | 主键 |
| goods_name | varchar(255) null | 商品名称 |
| goods_number | int(11) null | 商品库存 |
| goods_price | decimal(10,2) null | 商品价格 |
| goods_desc | varchar(255) null | 商品描述 |
| add_time | timestamp null | 添加时间 |
3）订单表
表名：trade_order
| Field | Type | Comment |
|---|---|---|
| order_id | bigint(50) not null | 订单ID |
| user_id | bigint(50) null | 用户ID |
| order_status | int(1) null | 订单状态 0-未确认 1-已确认 2-已取消 3-无效 4-退款 |
| pay_status | int(1) null | 支付状态 0-未支付 1-支付中 2-已支付 |
| shipping_status | int(1) null | 发货状态 0-未发货 1-已发货 2-已发货 |
| address | varchar(255) null | 收获地址 |
| consignee | varchar(255) null | 收货人 |
| goods_id | bigint(50) null | 商品ID |
| goods_number | int(11) null | 商品数量 |
| goods_price | decimal(10,2) null | 商品价格 |
| goods_amount | decimal(10,2) null | 商品总价 |
| shipping_fee | decimal(10,2) null | 运费 |
| order_amount | decimal(10,2) null | 订单金额 (商品数量*商品价格) |
| coupon_id | bigint(50) null | 优惠券ID |
| coupon_paid | decimal(10,2) null | 优惠券 |
| money_paid | decimal(10,2) null | 已支付金额 |
| pay_amount | decimal(10,2) null | 支付金额 |
| add_time | timestamp null | 创建时间 |
| confirm_time | timestamp null | 订单确认时间 |
| pay_time | timestamp Null | 支付时间 |
4）订单商品日志表
表名：trade_goods_number_log
| Field | Type | Comment |
|---|---|---|
| goods_id | int(50) not null | 商品ID |
| oder_id | varchar(50) not null | 订单ID |
| goods_number | int(11) null | 商品数量 |
| log_time | datetime null | 记录时间 |
5） 用户表
表名：trade_user
| Field | Type | Comment |
|---|---|---|
| user_id | bigint(50) not null | 用户ID |
| user_name | varchar(255) null | 用户姓名 |
| user_password | varchar(255) null | 用户密码 |
| user_mobile | varchar(255) null | 手机号 |
| user_score | int(11) null | 积分 |
| user_reg_time | timestamp null | 注册时间 |
| user_money | decimal(10,2) null | 用户余额 |
6）用户余额日志表
表名：trade_user_money_log
| Field | Type | Comment |
|---|---|---|
| user_id | bigint(50) not null | 用户ID |
| order_id | bigint(50) not null | 订单ID |
| money_log_type | int(1) not null | 日志类型 1-订单付款 2-订单退款 |
| use_money | decimal(10,2) null | 操作金额 |
| create_time | timestamp null | 日志时间 |
7）订单支付表
表名：trade_pay
| Field | Type | Comment |
|---|---|---|
| pay_id | bigint(50) not null | 支付编号 |
| order_id | bigint(50) null | 订单编号 |
| pay_amount | decimal(10,2) null | 支付金额 |
| is_paid | int(1) null | 是否已支付 1-否 2-是 |
8）MQ消息生产表
表名：trade_mq_producer_temp
| Field | Type | Comment |
|---|---|---|
| id | varchar(100) not null | 主键 |
| group_name | varchar(100) null | 生产者组名 |
| msg_topic | varchar(100) null | 消息主题 |
| msg_tag | varchar(100) null | Tag |
| msg_key | varchar(100) null | Key |
| msg_body | varchar(500) null | 消息内容 |
| msg_status | int(1) null | 0-未处理 1-已处理 |
| create_time | timestamp not null | 记录时间 |
9）MQ消息消费表
表名：trade_mq_consumer_log
| Field | Type | Comment |
|---|---|---|
| msg_id | varchar(100) null | 消息ID |
| group_name | varchar(100) not null | 消费者组名 (primary key) |
| msg_tag | varchar(100) not null | Tag (primary key) |
| msg_key | varchar(100) not null | Key (primary key) |
| msg_body | varchar(500) null | 消息体 |
| consumer_status | int(1) null | 0-正在处理；1-处理成功；2-处理失败 |
| consumer_times | int(1) null | 消费次数 |
| consumer_time | timestamp null | 消费时间 |
| remark | varchar(500) null |
10）SQL脚本
/*
SQLyog Ultimate v8.32
MySQL - 5.5.49 : Database - trade
*********************************************************************
*/
/*!40101 SET NAMES utf8 */;
/*!40101 SET SQL_MODE=''*/;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`trade` /*!40100 DEFAULT CHARACTER SET utf8 */;
USE `trade`;
/*Table structure for table `trade_coupon` */
DROP TABLE IF EXISTS `trade_coupon`;
CREATE TABLE `trade_coupon` (
`coupon_id` BIGINT(50) NOT NULL COMMENT '优惠券ID',
`coupon_price` DECIMAL(10,2) DEFAULT NULL COMMENT '优惠券金额',
`user_id` BIGINT(50) DEFAULT NULL COMMENT '用户ID',
`order_id` BIGINT(32) DEFAULT NULL COMMENT '订单ID',
`is_used` INT(1) DEFAULT NULL COMMENT '是否使用 0未使用 1已使用',
`used_time` TIMESTAMP NULL DEFAULT NULL COMMENT '使用时间',
PRIMARY KEY (`coupon_id`),
KEY `FK_trade_coupon` (`user_id`),
KEY `FK_trade_coupon2` (`order_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
/*Data for the table `trade_coupon` */
/*Table structure for table `trade_goods` */
DROP TABLE IF EXISTS `trade_goods`;
CREATE TABLE `trade_goods` (
`goods_id` BIGINT(50) NOT NULL AUTO_INCREMENT,
`goods_name` VARCHAR(255) DEFAULT NULL COMMENT '商品名称',
`goods_number` INT(11) DEFAULT NULL COMMENT '商品库存',
`goods_price` DECIMAL(10,2) DEFAULT NULL COMMENT '商品价格',
`goods_desc` VARCHAR(255) DEFAULT NULL COMMENT '商品描述',
`add_time` TIMESTAMP NULL DEFAULT NULL COMMENT '添加时间',
PRIMARY KEY (`goods_id`)
) ENGINE=INNODB AUTO_INCREMENT=345959443973935105 DEFAULT CHARSET=utf8;
/*Data for the table `trade_goods` */
INSERT INTO `trade_goods`(`goods_id`,`goods_name`,`goods_number`,`goods_price`,`goods_desc`,`add_time`) VALUES (345959443973935104,'华为P30',999,'5000.00','夜间拍照更美','2019-07-09 20:38:00');
/*Table structure for table `trade_goods_number_log` */
DROP TABLE IF EXISTS `trade_goods_number_log`;
CREATE TABLE `trade_goods_number_log` (
`goods_id` BIGINT(50) NOT NULL COMMENT '商品ID',
`order_id` BIGINT(50) NOT NULL COMMENT '订单ID',
`goods_number` INT(11) DEFAULT NULL COMMENT '库存数量',
`log_time` TIMESTAMP NULL DEFAULT NULL,
PRIMARY KEY (`goods_id`,`order_id`, `goods_number`), -- 如果不设置三个字段的联合主键,创建订单和取消订单登记的日志会存在主键冲突. 创建订单 goods_numer为负数表示扣减库存, 取消订单goods_number为正数表示回退库存.
KEY `FK_trade_goods_number_log2` (`order_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
/*Data for the table `trade_goods_number_log` */
/*Table structure for table `trade_mq_consumer_log` */
DROP TABLE IF EXISTS `trade_mq_consumer_log`;
CREATE TABLE `trade_mq_consumer_log` (
`msg_id` VARCHAR(50) DEFAULT NULL,
`group_name` VARCHAR(100) NOT NULL,
`msg_tag` VARCHAR(100) NOT NULL,
`msg_key` VARCHAR(100) NOT NULL,
`msg_body` VARCHAR(500) DEFAULT NULL,
`consumer_status` INT(1) DEFAULT NULL COMMENT '0:正在处理;1:处理成功;2:处理失败',
`consumer_times` INT(1) DEFAULT NULL,
`consumer_timestamp` TIMESTAMP NULL DEFAULT NULL,
`remark` VARCHAR(500) DEFAULT NULL,
PRIMARY KEY (`group_name`,`msg_tag`,`msg_key`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
/*Data for the table `trade_mq_consumer_log` */
/*Table structure for table `trade_mq_producer_temp` */
DROP TABLE IF EXISTS `trade_mq_producer_temp`;
CREATE TABLE `trade_mq_producer_temp` (
`id` VARCHAR(100) NOT NULL,
`group_name` VARCHAR(100) DEFAULT NULL,
`msg_topic` VARCHAR(100) DEFAULT NULL,
`msg_tag` VARCHAR(100) DEFAULT NULL,
`msg_key` VARCHAR(100) DEFAULT NULL,
`msg_body` VARCHAR(500) DEFAULT NULL,
`msg_status` INT(1) DEFAULT NULL COMMENT '0:未处理;1:已经处理',
`create_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
/*Data for the table `trade_mq_producer_temp` */
/*Table structure for table `trade_order` */
DROP TABLE IF EXISTS `trade_order`;
CREATE TABLE `trade_order` (
`order_id` BIGINT(50) NOT NULL COMMENT '订单ID',
`user_id` BIGINT(50) DEFAULT NULL COMMENT '用户ID',
`order_status` INT(1) DEFAULT NULL COMMENT '订单状态 0未确认 1已确认 2已取消 3无效 4退款',
`pay_status` INT(1) DEFAULT NULL COMMENT '支付状态 0未支付 1支付中 2已支付',
`shipping_status` INT(1) DEFAULT NULL COMMENT '发货状态 0未发货 1已发货 2已收货',
`address` VARCHAR(255) DEFAULT NULL COMMENT '收货地址',
`consignee` VARCHAR(255) DEFAULT NULL COMMENT '收货人',
`goods_id` BIGINT(50) DEFAULT NULL COMMENT '商品ID',
`goods_number` INT(11) DEFAULT NULL COMMENT '商品数量',
`goods_price` DECIMAL(10,2) DEFAULT NULL COMMENT '商品价格',
`goods_amount` DECIMAL(10,0) DEFAULT NULL COMMENT '商品总价',
`shipping_fee` DECIMAL(10,2) DEFAULT NULL COMMENT '运费',
`order_amount` DECIMAL(10,2) DEFAULT NULL COMMENT '订单价格',
`coupon_id` BIGINT(50) DEFAULT NULL COMMENT '优惠券ID',
`coupon_paid` DECIMAL(10,2) DEFAULT NULL COMMENT '优惠券',
`money_paid` DECIMAL(10,2) DEFAULT NULL COMMENT '已付金额',
`pay_amount` DECIMAL(10,2) DEFAULT NULL COMMENT '支付金额',
`add_time` TIMESTAMP NULL DEFAULT NULL COMMENT '创建时间',
`confirm_time` TIMESTAMP NULL DEFAULT NULL COMMENT '订单确认时间',
`pay_time` TIMESTAMP NULL DEFAULT NULL COMMENT '支付时间',
PRIMARY KEY (`order_id`),
KEY `FK_trade_order` (`user_id`),
KEY `FK_trade_order2` (`goods_id`),
KEY `FK_trade_order3` (`coupon_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
/*Data for the table `trade_order` */
/*Table structure for table `trade_pay` */
DROP TABLE IF EXISTS `trade_pay`;
CREATE TABLE `trade_pay` (
`pay_id` BIGINT(50) NOT NULL COMMENT '支付编号',
`order_id` BIGINT(50) DEFAULT NULL COMMENT '订单编号',
`pay_amount` DECIMAL(10,2) DEFAULT NULL COMMENT '支付金额',
`is_paid` INT(1) DEFAULT NULL COMMENT '是否已支付 1否 2是',
PRIMARY KEY (`pay_id`),
KEY `FK_trade_pay` (`order_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
/*Data for the table `trade_pay` */
/*Table structure for table `trade_user` */
DROP TABLE IF EXISTS `trade_user`;
CREATE TABLE `trade_user` (
`user_id` BIGINT(50) NOT NULL AUTO_INCREMENT COMMENT '用户ID',
`user_name` VARCHAR(255) DEFAULT NULL COMMENT '用户姓名',
`user_password` VARCHAR(255) DEFAULT NULL COMMENT '用户密码',
`user_mobile` VARCHAR(255) DEFAULT NULL COMMENT '手机号',
`user_score` INT(11) DEFAULT NULL COMMENT '积分',
`user_reg_time` TIMESTAMP NULL DEFAULT NULL COMMENT '注册时间',
`user_money` DECIMAL(10,0) DEFAULT NULL COMMENT '用户余额',
PRIMARY KEY (`user_id`)
) ENGINE=INNODB AUTO_INCREMENT=345963634385633281 DEFAULT CHARSET=utf8;
/*Data for the table `trade_user` */
INSERT INTO `trade_user`(`user_id`,`user_name`,`user_password`,`user_mobile`,`user_score`,`user_reg_time`,`user_money`) VALUES (345963634385633280,'刘备','123L','18888888888L',100,'2019-07-09 13:37:03','900');
/*Table structure for table `trade_user_money_log` */
DROP TABLE IF EXISTS `trade_user_money_log`;
CREATE TABLE `trade_user_money_log` (
`user_id` BIGINT(50) NOT NULL COMMENT '用户ID',
`order_id` BIGINT(50) NOT NULL COMMENT '订单ID',
`money_log_type` INT(1) NOT NULL COMMENT '日志类型 1订单付款 2 订单退款',
`use_money` DECIMAL(10,2) DEFAULT NULL,
`create_time` TIMESTAMP NULL DEFAULT NULL COMMENT '日志时间',
PRIMARY KEY (`user_id`,`order_id`,`money_log_type`),
KEY `FK_trade_user_money_log2` (`order_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
3.2 项目初始化
shop系统基于maven进行项目管理。
3.2.1 工程浏览
共12个系统
- 父工程：shop-parent
- 订单系统：shop-order-web
- 支付系统：shop-pay-web
- 优惠券服务：shop-coupon-service
- 订单服务：shop-order-service
- 支付服务：shop-pay-service
- 商品服务：shop-goods-service
- 用户服务：shop-user-service
- 实体类：shop-pojo
- 持久层：shop-dao
- 接口层：shop-api
- 工具工程：shop-common
3.2.2 工程关系
3.3 Mybatis逆向工程使用
1）代码生成
使用Mybatis逆向工程针对数据表生成CURD持久层代码
2）代码导入
- 将实体类导入到shop-pojo工程
- 在服务层工程中导入对应的Mapper类和对应配置文件
3.4 公共类介绍
-
ID生成器
IDWorker：Twitter雪花算法
-
异常处理类
CustomerException：自定义异常类
CastException：异常抛出类
-
常量类
ShopCode：系统状态类
-
响应实体类
Result：封装响应状态和响应信息
4. 下单业务
4.1 下单基本流程
4.1.1 接口定义
shop-api中添加订单接口 IOrderService
package com.crysw.api;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradeOrder;
/**
* 描述：订单接口
* @author crysw
* @date 2022/7/5 21:55
* @version 1.0
*/
public interface IOrderService {
/**
* 确认订单
* @param order
* @return
*/
Result confirmOrder(TradeOrder order);
}
shop-api中添加商品接口 IGoodsService
package com.crysw.api;
import com.crysw.shop.pojo.TradeGoods;
/**
* 描述：商品接口
* @author crysw
* @date 2022/7/5 22:14
* @version 1.0
*/
public interface IGoodsService {
/**
* 根据商品ID查询商品对象
* @param goodsId
* @return
*/
TradeGoods findOne(Long goodsId);
/**
* 扣减库存
* @param goodsNumberLog
* @return
*/
Result reduceGoodsNum(TradeGoodsNumberLog goodsNumberLog);
}
shop-api中添加用户接口 IUserService
package com.crysw.api;
import com.crysw.shop.pojo.TradeUser;
/**
* 描述：用户接口
* @author crysw
* @date 2022/7/5 22:32
* @version 1.0
*/
public interface IUserService {
/**
* 根据用户ID查询用户对象
* @param userId
* @return
*/
TradeUser findOne(Long userId);
}
shop-api中添加用户接口 ICouponService
package com.crysw.api;
import com.crysw.shop.pojo.TradeCoupon;
/**
* 描述：优惠券接口
* @author crysw
* @date 2022/7/11 21:24
* @version 1.0
*/
public interface ICouponService {
/**
* 根据优惠券ID查询优惠券信息
* @param couponId
* @return
*/
TradeCoupon findOne(Long couponId);
}
4.1.2 业务类实现
在模块shop-order-service中添加IOrderService接口的实现类， 进行订单的创建。
package com.crysw.shop.service.impl;
import com.crysw.api.IOrderService;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradeOrder;
/**
* 描述：
* @author crysw
* @date 2022/7/5 21:58
* @version 1.0
*/
@Component
// dubbo服务接口
@Service(interfaceClass = IOrderService.class)
@Slf4j
public class OrderServiceImpl implements IOrderService {
@Reference
private IGoodsService goodsService;
@Reference
private IUserService userService;
@Override
public Result confirmOrder(TradeOrder order) {
//1.校验订单
checkOrder(order);
//2.生成预订单
savePreOrder(order);
try {
//3.扣减库存
reduceGoodsNum(order);
//4.扣减优惠券
updateCouponStatus(order);
//5.扣减用户余额
reduceMoneyPaid(order);
//6.确认订单
updateOrderStatus(order);
//7.返回成功状态
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
} catch (Exception e) {
//1.确认订单失败,发送消息
//2.返回失败状态
return new Result(ShopCode.SHOP_FAIL.getSuccess(), ShopCode.SHOP_FAIL.getMessage());
}
}
}
4.1.3 校验订单
OrderServiceImpl#checkOrder
/**
* 校验订单
* @param order
*/
private void checkOrder(TradeOrder order) {
//1.校验订单是否存在
if (order == null) {
CastException.cast(ShopCode.SHOP_ORDER_INVALID);
}
//2.校验订单中的商品是否存在
TradeGoods goods = goodsService.findOne(order.getGoodsId());
if (goods == null) {
CastException.cast(ShopCode.SHOP_GOODS_NO_EXIST);
}
//3.校验下单用户是否存在
TradeUser user = userService.findOne(order.getUserId());
if (user == null) {
CastException.cast(ShopCode.SHOP_USER_NO_EXIST);
}
//4.校验商品单价是否合法
if (order.getGoodsPrice().compareTo(goods.getGoodsPrice()) != 0) {
CastException.cast(ShopCode.SHOP_GOODS_PRICE_INVALID);
}
//5.校验订单商品数量是否合法
if (order.getGoodsNumber() >= goods.getGoodsNumber()) {
CastException.cast(ShopCode.SHOP_GOODS_NUM_NOT_ENOUGH);
}
log.info("校验订单通过");
}
4.1.4 生成预订单
OrderServiceImpl#savePreOrder
/**
* 生成预订单
* @param order
*/
private long savePreOrder(TradeOrder order) {
/**1.设置订单状态为不可见**/
order.setOrderStatus(ShopCode.SHOP_ORDER_NO_CONFIRM.getCode());
/**2.设置订单ID**/
long orderId = idWorker.nextId();
order.setOrderId(orderId);
//3.核算订单运费**/
// 计算运费
BigDecimal shippingFee = calculateShippingFee(order.getOrderAmount());
// 校验运费是否正确
if (order.getShippingFee().compareTo(shippingFee) != 0) {
CastException.cast(ShopCode.SHOP_ORDER_SHIPPINGFEE_INVALID);
}
/**4. 核算订单总金额是否合法**/
// 计算订单总金额=订单的商品价格*订单的商品数量
BigDecimal orderAmounts = order.getGoodsPrice().multiply(new BigDecimal(order.getGoodsNumber()));
// 加上运费
orderAmounts.add(shippingFee);
if (order.getOrderAmount().compareTo(orderAmounts) != 0) {
CastException.cast(ShopCode.SHOP_ORDERAMOUNT_INVALID);
}
/**5.判断用户是否使用余额**/
BigDecimal moneyPaid = order.getMoneyPaid();
if (moneyPaid != null) {
//5.1 订单中余额是否合法
int r = moneyPaid.compareTo(BigDecimal.ZERO);
// 余额小于0
if (r == -1) {
CastException.cast(ShopCode.SHOP_MONEY_PAID_INVALID);
}
//余额大于0
if (r == 1) {
// 查询用户信息
TradeUser user = userService.findOne(order.getUserId());
if (user == null) {
CastException.cast(ShopCode.SHOP_USER_NO_EXIST);
}
//比较余额是否大于用户账户余额
if (user.getUserMoney().compareTo(moneyPaid.longValue()) == -1) {
CastException.cast(ShopCode.SHOP_MONEY_PAID_INVALID);
}
order.setMoneyPaid(moneyPaid);
}
} else {
order.setMoneyPaid(BigDecimal.ZERO);
}
/**6.判断用户是否使用优惠券**/
Long couponId = order.getCouponId();
if (couponId != null) {
// 查询优惠券信息
TradeCoupon coupon = couponService.findOne(couponId);
//6.1 判断优惠券是否存在
if (coupon == null) {
CastException.cast(ShopCode.SHOP_COUPON_NO_EXIST);
}
//6.2 判断优惠券是否已经被使用
if (Objects.equals(ShopCode.SHOP_COUPON_ISUSED.getCode().toString(), coupon.getIsUsed().toString())) {
CastException.cast(ShopCode.SHOP_COUPON_INVALIED);
}
order.setCouponPaid(coupon.getCouponPrice());
} else {
// 优惠券不存在
order.setCouponPaid(BigDecimal.ZERO);
}
/**7.核算订单支付金额 订单总金额-已付金额-优惠券金额**/
BigDecimal payAmount = order.getOrderAmount().subtract(order.getMoneyPaid()).subtract(order.getCouponPaid());
order.setPayAmount(payAmount);
/**8.设置下单时间**/
order.setAddTime(new Date());
/**9.保存订单到数据库**/
orderMapper.insert(order);
/**10.返回订单ID**/
return orderId;
}
/**
* 核算运费
* @param orderAmount 订单金额
* @return
*/
private BigDecimal calculateShippingFee(BigDecimal orderAmount) {
// 如果订单价格大于100, 免运费
if (orderAmount.compareTo(new BigDecimal(100)) == 1) {
return BigDecimal.ZERO;
} else {
// 否则, 需要收取10元运费
return new BigDecimal(10);
}
}
4.1.5 扣减库存
通过dubbo调用商品服务完成扣减库存. OrderServiceImpl#reduceGoodsNum
/**
* 扣减库存
* @param order
*/
private void reduceGoodsNum(TradeOrder order) {
TradeGoodsNumberLog goodsNumberLog = new TradeGoodsNumberLog();
goodsNumberLog.setOrderId(order.getOrderId());
goodsNumberLog.setGoodsId(order.getGoodsId());
goodsNumberLog.setGoodsNumber(order.getGoodsNumber());
Result result = goodsService.reduceGoodsNum(goodsNumberLog);
if (result.getSuccess().equals(ShopCode.SHOP_FAIL.getSuccess())) {
CastException.cast(ShopCode.SHOP_REDUCE_GOODS_NUM_FAIL);
}
log.info("订单: " + order.getOrderId() + "扣减库存成功");
}
在商品服务接口中新增扣减库存的方法
/**
* 描述：商品接口
* @author crysw
* @date 2022/7/5 22:14
* @version 1.0
*/
public interface IGoodsService {
/**
* 根据商品ID查询商品对象
* @param goodsId
* @return
*/
TradeGoods findOne(Long goodsId);
/**
* 扣减库存
* @param goodsNumberLog
* @return
*/
Result reduceGoodsNum(TradeGoodsNumberLog goodsNumberLog);
}
商品服务GoodsService扣减库存的实现. GoodsServiceImpl#reduceGoodsNum
@Override
public Result reduceGoodsNum(TradeGoodsNumberLog goodsNumberLog) {
if (goodsNumberLog == null
|| goodsNumberLog.getGoodsNumber() == null
|| goodsNumberLog.getOrderId() == null
|| goodsNumberLog.getGoodsNumber().intValue() <= 0) {
CastException.cast(ShopCode.SHOP_REQUEST_PARAMETER_VALID);
}
TradeGoods goods = goodsMapper.selectByPrimaryKey(goodsNumberLog.getGoodsId());
if (goods.getGoodsNumber() < goodsNumberLog.getGoodsNumber()) {
// 库存不足
CastException.cast(ShopCode.SHOP_GOODS_NUM_NOT_ENOUGH);
}
//减库存
goods.setGoodsNumber(goods.getGoodsNumber() - goodsNumberLog.getGoodsNumber());
goodsMapper.updateByPrimaryKey(goods);
//记录库存操作日志
goodsNumberLog.setGoodsNumber(-goodsNumberLog.getGoodsNumber());
goodsNumberLog.setLogTime(new Date());
goodsNumberLogMapper.insert(goodsNumberLog);
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
}
4.1.6 扣减优惠券
通过dubbo完成扣减优惠券. OrderServiceImpl#updateCouponStatus
/**
* 扣减优惠券
* @param order
*/
private void updateCouponStatus(TradeOrder order) {
if (order.getCouponId() != null) {
TradeCoupon coupon = couponService.findOne(order.getCouponId());
coupon.setOrderId(order.getOrderId());
coupon.setIsUsed(ShopCode.SHOP_COUPON_ISUSED.getCode());
coupon.setUsedTime(new Date());
//更新优惠券状态
Result result = couponService.updateCouponStatus(coupon);
if (result.getSuccess().equals(ShopCode.SHOP_FAIL.getSuccess())) {
CastException.cast(ShopCode.SHOP_COUPON_USE_FAIL);
}
log.info("订单:" + order.getOrderId() + ",使用优惠券");
}
}
优惠券服务接口新增更新优惠券状态接口. ICouponService#updateCouponStatus
/**
* 描述：优惠券接口
* @author crysw
* @date 2022/7/11 21:24
* @version 1.0
*/
public interface ICouponService {
/**
* 根据优惠券ID查询优惠券信息
* @param couponId
* @return
*/
TradeCoupon findOne(Long couponId);
/**
* 更新优惠券
* @param coupon
* @return
*/
Result updateCouponStatus(TradeCoupon coupon);
}
优惠券服务CouponService更改优惠券状态 CouponServiceImpl#updateCouponStatus
@Override
public Result updateCouponStatus(TradeCoupon coupon) {
if (coupon == null || coupon.getCouponId() == null) {
CastException.cast(ShopCode.SHOP_REQUEST_PARAMETER_VALID);
}
tradeCouponMapper.updateByPrimaryKey(coupon);
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
}
4.1.7 扣减用户余额
扣减用户余额的流程图
通过用户服务完成扣减余额 OrderServiceImpl#reduceMoneyPaid
/**
* 扣减余额
* @param order
*/
private void reduceMoneyPaid(TradeOrder order) {
if (order.getMoneyPaid() != null && order.getMoneyPaid().compareTo(BigDecimal.ZERO) == 1) {
TradeUserMoneyLog userMoneyLog = new TradeUserMoneyLog();
userMoneyLog.setOrderId(order.getOrderId());
userMoneyLog.setUserId(order.getUserId());
userMoneyLog.setUseMoney(order.getMoneyPaid());
userMoneyLog.setMoneyLogType(ShopCode.SHOP_USER_MONEY_PAID.getCode());
Result result = userService.updateMoneyPaid(userMoneyLog);
if (result.getSuccess().equals(ShopCode.SHOP_FAIL.getSuccess())) {
CastException.cast(ShopCode.SHOP_USER_MONEY_REDUCE_FAIL);
}
log.info("订单:" + order.getOrderId() + ",扣减余额成功");
}
}
用户服务接口新增更新余额的接口方法 IUserService#updateMoneyPaid
/**
* 描述：用户接口
* @author crysw
* @date 2022/7/5 22:32
* @version 1.0
*/
public interface IUserService {
/**
* 根据用户ID查询用户对象
* @param userId
* @return
*/
TradeUser findOne(Long userId);
/**
* 扣减余额
* @param userMoneyLog
* @return
*/
Result updateMoneyPaid(TradeUserMoneyLog userMoneyLog);
}
用户服务UserService,更新余额的实现 UserServiceImpl#updateMoneyPaid
@Override
public Result updateMoneyPaid(TradeUserMoneyLog userMoneyLog) {
/**1.校验参数是否合法**/
if (userMoneyLog == null ||
userMoneyLog.getUserId() == null ||
userMoneyLog.getOrderId() == null ||
userMoneyLog.getUseMoney().compareTo(BigDecimal.ZERO) <= 0) {
CastException.cast(ShopCode.SHOP_REQUEST_PARAMETER_VALID);
}
/**2.查询订单余额使用日志**/
TradeUserMoneyLogExample userMoneyLogExample = new TradeUserMoneyLogExample();
TradeUserMoneyLogExample.Criteria criteria = userMoneyLogExample.createCriteria();
criteria.andOrderIdEqualTo(userMoneyLog.getOrderId());
criteria.andUserIdEqualTo(userMoneyLog.getUserId());
int r = userMoneyLogMapper.countByExample(userMoneyLogExample);
TradeUser tradeUser = tradeUserMapper.selectByPrimaryKey(userMoneyLog.getUserId());
/**3.扣减余额...**/
if (userMoneyLog.getMoneyLogType().intValue() == ShopCode.SHOP_USER_MONEY_PAID.getCode().intValue()) {
if (r > 0) {
// 已付款
CastException.cast(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY);
}
// 扣减余额操作
tradeUser.setUserMoney(new BigDecimal(tradeUser.getUserMoney()).subtract(userMoneyLog.getUseMoney()).longValue());
tradeUserMapper.updateByPrimaryKey(tradeUser);
}
/**4.回退余额...**/
if (userMoneyLog.getMoneyLogType().intValue() == ShopCode.SHOP_USER_MONEY_REFUND.getCode().intValue()) {
if (r < 0) {
// 没有付款记录, 不能退款
CastException.cast(ShopCode.SHOP_ORDER_PAY_STATUS_NO_PAY);
}
// 防止多次退款
TradeUserMoneyLogExample userMoneyLogExample2 = new TradeUserMoneyLogExample();
userMoneyLogExample2.createCriteria()
.andOrderIdEqualTo(userMoneyLog.getOrderId())
.andUserIdEqualTo(userMoneyLog.getUserId())
.andMoneyLogTypeEqualTo(ShopCode.SHOP_USER_MONEY_REFUND.getCode());
int r2 = userMoneyLogMapper.countByExample(userMoneyLogExample2);
if (r2 > 0) {
// 已经退款了
CastException.cast(ShopCode.SHOP_USER_MONEY_REFUND_ALREADY);
}
// 没有退款, 进行退款操作
tradeUser.setUserMoney(new BigDecimal(tradeUser.getUserMoney()).add(userMoneyLog.getUseMoney()).longValue());
tradeUserMapper.updateByPrimaryKey(tradeUser);
}
/**5.记录订单余额使用日志**/
userMoneyLog.setCreateTime(new Date());
userMoneyLogMapper.insert(userMoneyLog);
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
}
4.1.8 确认订单
OrderServiceImpl#updateOrderStatus
/**
* 确认订单
* @param order
*/
private void updateOrderStatus(TradeOrder order) {
order.setOrderStatus(ShopCode.SHOP_ORDER_CONFIRM.getCode());
order.setPayStatus(ShopCode.SHOP_ORDER_PAY_STATUS_NO_PAY.getCode());
order.setConfirmTime(new Date());
int r = orderMapper.updateByPrimaryKey(order);
if (r <= 0) {
// 确认订单失败
CastException.cast(ShopCode.SHOP_ORDER_CONFIRM_FAIL);
}
log.info("订单:[" + order.getOrderId() + "]状态修改(确认)成功");
}
4.1.9 测试创建订单
编写测试api: OrderServiceTest#confirmOrder
package com.crysw.test;
import com.crysw.api.IOrderService;
import com.crysw.shop.OrderApplication;
import com.crysw.shop.pojo.TradeOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.io.IOException;
import java.math.BigDecimal;
/**
* 描述：
* @author crysw
* @date 2022/7/18 22:27
* @version 1.0
*/
@SpringBootTest(classes = {OrderApplication.class})
@RunWith(SpringRunner.class)
public class OrderServiceTest {
@Autowired
private IOrderService orderService;
@Test
public void confirmOrder() throws IOException {
Long coupouId = 345988230098857984L;
Long goodsId = 345959443973935104L;
Long userId = 345963634385633280L;
// 创建订单
TradeOrder order = new TradeOrder();
order.setGoodsId(goodsId);
order.setUserId(userId);
order.setCouponId(coupouId);
order.setAddress("北京");
order.setGoodsNumber(1);
// 商品价格
order.setGoodsPrice(new BigDecimal(1000));
// 运费
order.setShippingFee(BigDecimal.ZERO);
// 订单金额 = 商品价格*数量 + 运费
order.setOrderAmount(new BigDecimal(1000));
// 已支付金额
order.setMoneyPaid(new BigDecimal(100));
orderService.confirmOrder(order);
System.in.read();
}
}
测试日志:
# 校验订单
2022-07-25 13:07:17.821 INFO 24040 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 校验订单通过
2022-07-25 13:07:18.143 INFO 24040 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-07-25 13:07:18.147 WARN 24040 --- [ main] com.zaxxer.hikari.util.DriverDataSource : Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
2022-07-25 13:07:18.361 INFO 24040 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
# 扣减库存
2022-07-25 13:07:18.567 INFO 24040 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单: 748931450161729536扣减库存成功
# 使用优惠券
2022-07-25 13:07:18.612 INFO 24040 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单:748931450161729536,使用优惠券
# 扣减余额
2022-07-25 13:07:18.942 INFO 24040 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单:748931450161729536,扣减余额成功
# 修改订单状态
2022-07-25 13:07:18.947 INFO 24040 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单:[748931450161729536]状态修改(确认)成功
查看库表记录:
trade_order订单表生成了一条订单, 还没有支付.
<data>
<row>
<order_id>748931450161729536order_id>
<user_id>345963634385633280user_id>
<order_status>1order_status>
<pay_status>0pay_status>
<shipping_status>(NULL)shipping_status>
<address>北京address>
<consignee>(NULL)consignee>
<goods_id>345959443973935104goods_id>
<goods_number>1goods_number>
<goods_price>1000.00goods_price>
<goods_amount>(NULL)goods_amount>
<shipping_fee>0.00shipping_fee>
<order_amount>1000.00order_amount>
<coupon_id>345988230098857984coupon_id>
<coupon_paid>20.00coupon_paid>
<money_paid>100.00money_paid>
<pay_amount>880.00pay_amount>
<add_time>2022-07-25 13:07:18add_time>
<confirm_time>2022-07-25 13:07:19confirm_time>
<pay_time>(NULL)pay_time>
row>
data>
trade_goods_number_log 订单商品日志表, 新增一条订单日志记录.
<data>
<row>
<goods_id>345959443973935104goods_id>
<order_id>748931450161729536order_id>
<goods_number>-1goods_number>
<log_time>2022-07-25 13:07:19log_time>
row>
data>
trade_goods 商品表, 库存减少.
<data>
<row>
<goods_id>345959443973935104goods_id>
<goods_name>JavaSE课程goods_name>
<goods_number>991goods_number>
<goods_price>1000.00goods_price>
<goods_desc>传智播客出品Java视频课程goods_desc>
<add_time>2019-07-09 20:38:00add_time>
row>
<row>
<goods_id>345959443973935105goods_id>
<goods_name>华为P30goods_name>
<goods_number>999goods_number>
<goods_price>5000.00goods_price>
<goods_desc>夜间拍照更美goods_desc>
<add_time>2019-07-09 20:38:00add_time>
row>
data>
trade_coupon 优惠券表的优惠券已使用.
<data>
<row>
<coupon_id>345988230098857984coupon_id>
<coupon_price>20.00coupon_price>
<user_id>345963634385633280user_id>
<order_id>748931450161729536order_id>
<is_used>1is_used>
<used_time>2022-07-25 13:07:19used_time>
row>
data>
trade_user用户表的用户余额扣减了100, 剩余900.
<data>
<row>
<user_id>345963634385633280user_id>
<user_name>刘备user_name>
<user_password>123Luser_password>
<user_mobile>18888888888Luser_mobile>
<user_score>100user_score>
<user_reg_time>2019-07-09 13:37:03user_reg_time>
<user_money>900user_money>
row>
data>
trade_user_money_log 用户余额日志表, 新增一条扣减用户余额的日志记录.
<data>
<row>
<user_id>345963634385633280user_id>
<order_id>748931450161729536order_id>
<money_log_type>1money_log_type>
<use_money>100.00use_money>
<create_time>2022-07-25 13:07:19create_time>
row>
data>
4.2 失败补偿机制
使用MQ异步解耦的方式推送下单失败的消息, MQ集群搭建参考博客RocketMQ专题01
4.2.1 消息发送方
- 配置RocketMQ属性值
# RocketMQ
rocketmq.name-server=192.168.65.129:9876;192.168.65.130:9876
# 创建订单失败的生者者组
rocketmq.producer.group=orderProducerGroup
# 创建订单失败的消费者组,topic,tag
mq.order.consumer.group.name=order_orderTopic_cancel_group
mq.order.topic=orderTopic
mq.order.tag.cancel=order_cancel
- 注入模板类和属性值信息 (com.crysw.shop.service.impl.OrderServiceImpl)
@Autowired
private RocketMQTemplate rocketMQTemplate;
@Value("${mq.order.topic}")
private String topic;
@Value("${mq.order.tag.cancel}")
private String cancelTag;
- 发送下单失败消息
@Override
public Result confirmOrder(TradeOrder order) {
//1.校验订单
checkOrder(order);
//2.生成预订单
savePreOrder(order);
try {
//3.扣减库存
reduceGoodsNum(order);
//4.扣减优惠券
updateCouponStatus(order);
//5.扣减用户余额
reduceMoneyPaid(order);
// 模拟异常
CastException.cast(ShopCode.SHOP_FAIL);
//6.确认订单
updateOrderStatus(order);
//7.返回成功状态
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
} catch (Exception e) {
//1.确认订单失败,发送消息
MQEntity mqEntity = new MQEntity();
mqEntity.setOrderId(order.getOrderId());
mqEntity.setUserId(order.getUserId());
mqEntity.setGoodsId(order.getGoodsId());
mqEntity.setCouponId(order.getCouponId());
mqEntity.setGoodsNum(order.getGoodsNumber());
mqEntity.setUserMoney(order.getMoneyPaid());
try {
sendCancelOrder(topic, tag, order.getOrderId().toString(), JSON.toJSONString(mqEntity));
} catch (Exception ex) {
ex.printStackTrace();
}
//2.返回失败状态
return new Result(ShopCode.SHOP_FAIL.getSuccess(), ShopCode.SHOP_FAIL.getMessage());
}
}
/**
* 发送订单确认失败消息
* @param topic
* @param tag
* @param keys
* @param body
*/
private void sendCancelOrder(String topic, String tag, String keys, String body) throws Exception {
Message message = new Message(topic, tag, keys, body.getBytes());
rocketMQTemplate.getProducer().send(message);
}
- 测试下单失败, 发送消息.
将优惠券345988230098857984的状态修改为0-未使用, 在上面的下单流程中的扣减余额后面加入模拟异常抛出的代码 ,重新执行单元测试案例.
//5.扣减用户余额
reduceMoneyPaid(order);
// 模拟异常
CastException.cast(ShopCode.SHOP_FAIL);
//6.确认订单
updateOrderStatus(order);
创建订单的测试日志
# 校验订单
2022-07-25 16:35:16.767 INFO 23960 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 校验订单通过
2022-07-25 16:35:16.956 INFO 23960 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-07-25 16:35:16.969 WARN 23960 --- [ main] com.zaxxer.hikari.util.DriverDataSource : Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
2022-07-25 16:35:17.249 INFO 23960 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
# 减库存
2022-07-25 16:35:17.340 INFO 23960 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单: 748983790659047424扣减库存成功
# 使用优惠券
2022-07-25 16:35:17.369 INFO 23960 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单:748983790659047424,使用优惠券
# 扣减余额
2022-07-25 16:35:17.423 INFO 23960 --- [ main] c.c.shop.service.impl.OrderServiceImpl : 订单:748983790659047424,扣减余额成功
# 下单失败,抛出异常
2022-07-25 16:35:17.443 ERROR 23960 --- [ main] com.crysw.exception.CastException : ShopCode{success=false, code=0, message='错误'}
程序捕获到异常后, 下单失败会推送mq消息.
4.2.2 消费接收方
0) 分析
订单表, 订单商品日志表, 优惠券表, 用户表, 用户余额日志表都已经插入记录或更新记录成功, 创建订单却是失败的, 正常来说是需要回滚之前的记录.
这里可以通过MQ消费者消费上面推送的订单失败的消息进行数据回滚, 与主流程解耦, 提高处理性能.
配置RocketMQ属性值
# RocketMQ
rocketmq.name-server=192.168.65.129:9876;192.168.65.130:9876
mq.order.consumer.group.name=order_orderTopic_cancel_group
mq.order.topic=orderTopic
创建监听类，消费消息
@Slf4j
@Component
@RocketMQMessageListener(topic = "${mq.order.topic}", consumerGroup = "${mq.order.consumer.group.name}",
messageModel = MessageModel.BROADCASTING)
public class CancelOrderConsumer implements RocketMQListener<MessageExt>{
@Override
public void onMessage(MessageExt messageExt) {
// 消息处理
}
}
1) 回退库存
创建订单失败后, 通过MQ推送下单失败的消息, 商品服务[shop-goods-service]订阅下单失败的主题, 监听到下单失败的消息时, 进行商品库存的回退及消息日志记录.
流程分析
消息消费者的回退库存操作
package com.crysw.shop.mq;
import com.alibaba.fastjson.JSON;
import com.crysw.shop.entity.MQEntity;
import com.crysw.shop.mapper.TradeGoodsMapper;
import com.crysw.shop.mapper.TradeGoodsNumberLogMapper;
import com.crysw.shop.mapper.TradeMqConsumerLogMapper;
import com.crysw.shop.pojo.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import static com.crysw.constant.ShopCode.*;
/**
* 描述：创建订单失败的消息消费者-回退库存
* @author crysw
* @date 2022/7/25 19:13
* @version 1.0
*/
@Slf4j
@Component
@RocketMQMessageListener(topic = "${mq.order.topic}", consumerGroup = "${mq.order.consumer.group.name}", messageModel = MessageModel.BROADCASTING)
public class CancelGoodsConsumer implements RocketMQListener<MessageExt> {
@Value("${mq.order.consumer.group.name}")
private String groupName;
@Autowired
private TradeMqConsumerLogMapper mqConsumerLogMapper;
@Autowired
private TradeGoodsMapper goodsMapper;
@Autowired
private TradeGoodsNumberLogMapper goodsNumberLogMapper;
@Override
public void onMessage(MessageExt messageExt) {
String msgId = null;
String tags = null;
String keys = null;
String body = null;
try {
// 1. 解析消息内容
msgId = messageExt.getMsgId();
tags = messageExt.getTags();
keys = messageExt.getKeys();
body = new String(messageExt.getBody(), "utf-8");
log.info("接受消息成功");
// 2. 查询消息消费记录
TradeMqConsumerLogKey primaryKey = new TradeMqConsumerLogKey();
primaryKey.setMsgKey(keys);
primaryKey.setMsgTag(tags);
primaryKey.setGroupName(groupName);
TradeMqConsumerLog mqConsumerLog = mqConsumerLogMapper.selectByPrimaryKey(primaryKey);
if (mqConsumerLog != null) {
// 3. 判断, 如果消费过, 获取消息处理状态 0:正在处理;1:处理成功;2:处理失败
Integer status = mqConsumerLog.getConsumerStatus();
// 处理过...返回
if (SHOP_MQ_MESSAGE_STATUS_SUCCESS.getCode().intValue() == status.intValue()) {
log.info("消息:" + msgId + ",已经处理过");
return;
}
//正在处理...返回
if (SHOP_MQ_MESSAGE_STATUS_PROCESSING.getCode().intValue() == status.intValue()) {
log.info("消息:" + msgId + ",正在处理");
return;
}
//处理失败, 判断消息处理次数是否超过重试次数 3次
if (SHOP_MQ_MESSAGE_STATUS_FAIL.getCode().intValue() == status.intValue()) {
// 获取消息已处理的次数
Integer times = mqConsumerLog.getConsumerTimes();
if (times.intValue() > 3) {
log.info("消息:" + msgId + ",消息处理超过3次,不能再进行处理了");
return;
}
// 将消息状态修改为正在处理中
mqConsumerLog.setConsumerStatus(SHOP_MQ_MESSAGE_STATUS_PROCESSING.getCode());
//使用数据库乐观锁更新
TradeMqConsumerLogExample example = new TradeMqConsumerLogExample();
TradeMqConsumerLogExample.Criteria criteria = example.createCriteria();
criteria.andMsgTagEqualTo(mqConsumerLog.getMsgTag())
.andMsgKeyEqualTo(mqConsumerLog.getMsgKey())
.andGroupNameEqualTo(mqConsumerLog.getGroupName())
.andConsumerTimesEqualTo(mqConsumerLog.getConsumerTimes());
int r = mqConsumerLogMapper.updateByExampleSelective(mqConsumerLog, example);
if (r <= 0) {
//未修改成功,其他线程并发修改
log.info("并发修改,稍后处理");
}
}
} else {
// 4. 判断, 如果没有消费过
mqConsumerLog = new TradeMqConsumerLog();
mqConsumerLog.setMsgId(msgId);
mqConsumerLog.setMsgTag(tags);
mqConsumerLog.setMsgKey(keys);
mqConsumerLog.setMsgBody(body);
mqConsumerLog.setGroupName(groupName);
mqConsumerLog.setConsumerStatus(SHOP_MQ_MESSAGE_STATUS_PROCESSING.getCode());
mqConsumerLog.setConsumerTimes(0);
//将消息处理信息添加到数据库
mqConsumerLogMapper.insert(mqConsumerLog);
}
// 5. 回退库存
MQEntity mqEntity = JSON.parseObject(body, MQEntity.class);
Long goodsId = mqEntity.getGoodsId();
TradeGoods goods = goodsMapper.selectByPrimaryKey(goodsId);
goods.setGoodsNumber(goods.getGoodsNumber() + mqEntity.getGoodsNum());
goodsMapper.updateByPrimaryKey(goods);
// 记录库存操作日志
TradeGoodsNumberLog goodsNumberLog = new TradeGoodsNumberLog();
goodsNumberLog.setOrderId(mqEntity.getOrderId());
goodsNumberLog.setGoodsId(goodsId);
goodsNumberLog.setGoodsNumber(mqEntity.getGoodsNum());
goodsNumberLog.setLogTime(new Date());
goodsNumberLogMapper.insert(goodsNumberLog);
// 6. 将消息的处理状态改为处理成功
mqConsumerLog.setConsumerStatus(SHOP_MQ_MESSAGE_STATUS_SUCCESS.getCode());
mqConsumerLog.setConsumerTimestamp(new Date());
mqConsumerLogMapper.updateByPrimaryKey(mqConsumerLog);
log.info("回退库存成功");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
TradeMqConsumerLogKey primarykey = new TradeMqConsumerLogKey();
primarykey.setMsgTag(tags);
primarykey.setMsgKey(keys);
primarykey.setGroupName(groupName);
TradeMqConsumerLog mqConsumerLog = mqConsumerLogMapper.selectByPrimaryKey(primarykey);
if (mqConsumerLog == null) {
//数据库没有有记录, 消息没有消费过
mqConsumerLog.setMsgId(msgId);
mqConsumerLog.setMsgKey(keys);
mqConsumerLog.setMsgTag(tags);
mqConsumerLog.setMsgBody(body);
mqConsumerLog.setGroupName(groupName);
mqConsumerLog.setConsumerStatus(SHOP_MQ_MESSAGE_STATUS_FAIL.getCode());
mqConsumerLog.setConsumerTimes(1);
mqConsumerLogMapper.insert(mqConsumerLog);
} else {
// 消费失败, 消费次数+1, 可以继续重试
mqConsumerLog.setConsumerTimes(mqConsumerLog.getConsumerTimes() + 1);
mqConsumerLogMapper.updateByPrimaryKeySelective(mqConsumerLog);
}
}
}
}
2) 回退优惠券
创建订单失败后, 通过MQ推送下单失败的消息, 优惠券服务[shop-coupon-service]订阅下单失败的主题, 监听到下单失败的消息时, 进行优惠券的回退, 更新优惠券的状态等信息.
package com.crysw.shop.mq;
import com.alibaba.fastjson.JSON;
import com.crysw.constant.ShopCode;
import com.crysw.shop.entity.MQEntity;
import com.crysw.shop.mapper.TradeCouponMapper;
import com.crysw.shop.pojo.TradeCoupon;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
/**
* 描述：创建订单失败的消息消费者-回退优惠券
* @author crysw
* @date 2022/7/27 20:55
* @version 1.0
*/
@Component
@Slf4j
@RocketMQMessageListener(topic = "${mq.order.topic}", consumerGroup = "${mq.order.consumer.group.name}", messageModel = MessageModel.BROADCASTING)
public class CancelCouponConsumer implements RocketMQListener<MessageExt> {
@Autowired
private TradeCouponMapper couponMapper;
@Override
public void onMessage(MessageExt messageExt) {
try {
// 1. 解析消息内容
String body = new String(messageExt.getBody(), "utf-8");
MQEntity mqEntity = JSON.parseObject(body, MQEntity.class);
if (mqEntity.getCouponId() != null) {
// 2. 查询优惠券信息
TradeCoupon coupon = couponMapper.selectByPrimaryKey(mqEntity.getCouponId());
// 3. 更改优惠券状态
coupon.setUsedTime(null);
coupon.setIsUsed(ShopCode.SHOP_COUPON_UNUSED.getCode());
coupon.setOrderId(null);
couponMapper.updateByPrimaryKey(coupon);
log.info("回退优惠券成功");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
log.error("回退优惠券失败");
}
}
}
3) 回退余额
创建订单失败后, 通过MQ推送下单失败的消息, 用户服务[shop-user-service]订阅下单失败的主题, 监听到下单失败的消息时, 进行用户余额的回退.
package com.crysw.shop.mq;
import com.alibaba.fastjson.JSON;
import com.crysw.api.IUserService;
import com.crysw.constant.ShopCode;
import com.crysw.shop.entity.MQEntity;
import com.crysw.shop.pojo.TradeUserMoneyLog;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
/**
* 描述：创建订单失败的消息消费者-回退用户余额
* @author crysw
* @date 2022/7/27 21:53
* @version 1.0
*/
@Slf4j
@Component
@RocketMQMessageListener(topic = "${mq.order.topic}", consumerGroup = "${mq.order.consumer.group.name}", messageModel = MessageModel.BROADCASTING)
public class CancelUserMoneyConsumer implements RocketMQListener<MessageExt> {
@Autowired
private IUserService userService;
@Override
public void onMessage(MessageExt messageExt) {
// 1. 解析消息
try {
String body = new String(messageExt.getBody(), "utf-8");
MQEntity mqEntity = JSON.parseObject(body, MQEntity.class);
log.info("接收到消息");
if (mqEntity.getUserMoney() != null && mqEntity.getUserMoney().compareTo(BigDecimal.ZERO) > 0) {
// 2. 调用业务层, 进行余额修改
TradeUserMoneyLog userMoneyLog = new TradeUserMoneyLog();
userMoneyLog.setUseMoney(mqEntity.getUserMoney());
userMoneyLog.setMoneyLogType(ShopCode.SHOP_USER_MONEY_REFUND.getCode());
userMoneyLog.setUserId(mqEntity.getUserId());
userMoneyLog.setOrderId(mqEntity.getOrderId());
userService.updateMoneyPaid(userMoneyLog);
log.info("余额回退成功");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
log.error("余额回退失败");
}
}
}
userService.updateMoneyPaid→
4) 取消订单
创建订单失败后, 通过MQ推送下单失败的消息, 订单服务[shop-order-service]订阅下单失败的主题, 监听到下单失败的消息时, 取消订单.
package com.crysw.shop.mq;
import com.alibaba.fastjson.JSON;
import com.crysw.constant.ShopCode;
import com.crysw.shop.entity.MQEntity;
import com.crysw.shop.mapper.TradeOrderMapper;
import com.crysw.shop.pojo.TradeOrder;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
/**
* 描述：创建订单失败的消息消费者-取消订单
* @author crysw
* @date 2022/7/25 19:13
* @version 1.0
*/
@Slf4j
@Component
@RocketMQMessageListener(topic = "${mq.order.topic}", consumerGroup = "${mq.order.consumer.group.name}", messageModel = MessageModel.BROADCASTING)
public class CancelOrderConsumer implements RocketMQListener<MessageExt> {
@Autowired
private TradeOrderMapper orderMapper;
@Override
public void onMessage(MessageExt messageExt) {
try {
// 1. 解析消息内容
String body = new String(messageExt.getBody(), "utf-8");
MQEntity mqEntity = JSON.parseObject(body, MQEntity.class);
log.info("接受消息成功");
// 2. 查询订单
if (mqEntity.getOrderId() != null) {
TradeOrder order = orderMapper.selectByPrimaryKey(mqEntity.getOrderId());
//3.更新订单状态为取消
order.setOrderStatus(ShopCode.SHOP_ORDER_CANCEL.getCode());
orderMapper.updateByPrimaryKey(order);
log.info("订单状态设置为取消");
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
log.error("取消订单失败");
}
}
}
4.3 测试
4.3.1 准备测试环境
编写测试类.
package com.crysw.test;
import com.crysw.api.IOrderService;
import com.crysw.shop.OrderApplication;
import com.crysw.shop.pojo.TradeOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.io.IOException;
import java.math.BigDecimal;
/**
* 描述：
* @author crysw
* @date 2022/7/18 22:27
* @version 1.0
*/
@SpringBootTest(classes = {OrderApplication.class})
@RunWith(SpringRunner.class)
public class OrderServiceTest {
@Autowired
private IOrderService orderService;
@Test
public void confirmOrder() throws IOException {
Long coupouId = 345988230098857984L;
Long goodsId = 345959443973935104L;
Long userId = 345963634385633280L;
// 创建订单
TradeOrder order = new TradeOrder();
order.setGoodsId(goodsId);
order.setUserId(userId);
order.setCouponId(coupouId);
order.setAddress("北京");
order.setGoodsNumber(1);
// 商品价格
order.setGoodsPrice(new BigDecimal(1000));
// 运费
order.setShippingFee(BigDecimal.ZERO);
// 订单金额 = 商品价格*数量 + 运费
order.setOrderAmount(new BigDecimal(1000));
// 已支付金额
order.setMoneyPaid(new BigDecimal(100));
orderService.confirmOrder(order);
// 订单创建出现异常后会中断程序,导致无法正常取消订单; 这里等待录入可以让当前订单服务不中断,继续启用状态
System.in.read();
}
}
4.3.2 准备测试数据
先还原优惠券状态, 用户余额, 商品库存等数据. 然后启动用户服务, 商品服务, 优惠券服务, 执行上面的单元测试案例进行下单操作(下单操作已模拟异常), 执行完毕后查看用户的余额、优惠券数据是否发生更改，订单的状态是否为取消。
4.3.3 查看测试结果
trade_order: 订单表新增一条订单, 因为下单失败, 订单状态已更新为"取消".
<data>
<row>
<order_id>750137168931983360order_id>
<user_id>345963634385633280user_id>
<order_status>2order_status>
<pay_status>(NULL)pay_status>
<shipping_status>(NULL)shipping_status>
<address>北京address>
<consignee>(NULL)consignee>
<goods_id>345959443973935104goods_id>
<goods_number>1goods_number>
<goods_price>1000.00goods_price>
<goods_amount>(NULL)goods_amount>
<shipping_fee>0.00shipping_fee>
<order_amount>1000.00order_amount>
<coupon_id>345988230098857984coupon_id>
<coupon_paid>20.00coupon_paid>
<money_paid>100.00money_paid>
<pay_amount>880.00pay_amount>
<add_time>2022-07-28 20:58:24add_time>
<confirm_time>(NULL)confirm_time>
<pay_time>(NULL)pay_time>
row>
data>
trade_mq_consumer_log: 下单失败, 向mq推送了一条下单失败的消息, 消费者消费消息后进行数据回退.
<data>
<row>
<msg_id>C0A8000472F818B4AAC28F8BD1D70000msg_id>
<group_name>order_orderTopic_cancel_groupgroup_name>
<msg_tag>order_cancelmsg_tag>
<msg_key>750137168931983360msg_key>
<msg_body>{"couponId":345988230098857984,"goodsId":345959443973935104,"goodsNum":1,"orderId":750137168931983360,"userId":345963634385633280,"userMoney":100}msg_body>
<consumer_status>1consumer_status>
<consumer_times>0consumer_times>
<consumer_timestamp>(NULL)consumer_timestamp>
<remark>(NULL)remark>
row>
data>
trade_coupon: 优惠券状态还是未使用状态.
<data>
<row>
<coupon_id>345988230098857984coupon_id>
<coupon_price>20.00coupon_price>
<user_id>345963634385633280user_id>
<order_id>(NULL)order_id>
<is_used>0is_used>
<used_time>(NULL)used_time>
row>
data>
trade_user: 用户余额也没有回退成功, 没有减少.
<data>
<row>
<user_id>345963634385633280user_id>
<user_name>刘备user_name>
<user_password>123Luser_password>
<user_mobile>18888888888Luser_mobile>
<user_score>100user_score>
<user_reg_time>2019-07-09 13:37:03user_reg_time>
<user_money>1000user_money>
row>
data>
trade_user_money_log: 用户余额日志表新增一条退款记录.
<data>
<row>
<user_id>345963634385633280user_id>
<order_id>750137168931983360order_id>
<money_log_type>1money_log_type>
<use_money>100.00use_money>
<create_time>2022-07-28 20:58:25create_time>
row>
<row>
<user_id>345963634385633280user_id>
<order_id>750137168931983360order_id>
<money_log_type>2money_log_type>
<use_money>100.00use_money>
<create_time>2022-07-28 20:58:27create_time>
row>
data>
trade_goods: 商品库存已恢复, 没有减少.
<data>
<row>
<goods_id>345959443973935104goods_id>
<goods_name>JavaSE课程goods_name>
<goods_number>1000goods_number>
<goods_price>1000.00goods_price>
<goods_desc>传智播客出品Java视频课程goods_desc>
<add_time>2019-07-09 20:38:00add_time>
row>
<row>
<goods_id>345959443973935105goods_id>
<goods_name>华为P30goods_name>
<goods_number>1000goods_number>
<goods_price>5000.00goods_price>
<goods_desc>夜间拍照更美goods_desc>
<add_time>2019-07-09 20:38:00add_time>
row>
data>
5. 支付业务
5.1 创建支付订单
支付业务流程图
代码实现
支付服务接口新增创建支付信息方法 com.crysw.api.IPayService#createPayment
package com.crysw.api;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradePay;
/**
* 描述：支付服务接口
* @author crysw
* @date 2022/7/28 21:56
* @version 1.0
*/
public interface IPayService {
/**
* 创建支付信息
* @param tradePay 订单支付信息
*/
Result createPayment(TradePay tradePay);
}
创建支付信息的实现
@Override
public Result createPayment(TradePay tradePay) {
if (tradePay == null || tradePay.getOrderId() == null) {
CastException.cast(ShopCode.SHOP_REQUEST_PARAMETER_VALID);
}
// 查询订单支付状态
TradePayExample payExample = new TradePayExample();
TradePayExample.Criteria criteria = payExample.createCriteria();
criteria.andOrderIdEqualTo(tradePay.getOrderId())
.andIsPaidEqualTo(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY.getCode());
int count = tradePayMapper.countByExample(payExample);
if (count > 0) {
CastException.cast(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY);
}
// 设置订单的未支付信息
tradePay.setIsPaid(ShopCode.SHOP_ORDER_PAY_STATUS_NO_PAY.getCode());
tradePay.setPayId(idWorker.nextId());
// 保存支付订单
tradePayMapper.insert(tradePay);
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
}
5.2 支付回调
5.2.1 流程分析
5.2.2 代码实现
支付服务接口新增支付回调方法 com.crysw.api.IPayService#callbackPayment
package com.crysw.api;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradePay;
/**
* 描述：支付服务接口
* @author crysw
* @date 2022/7/28 21:56
* @version 1.0
*/
public interface IPayService {
// ..... 省略部分代码
/**
* 支付接口的回调
* @param tradePay
* @return
*/
Result callbackPayment(TradePay tradePay);
}
支付回调的实现 com.crysw.shop.service.impl.PayServiceImpl#callbackPayment
@Override
public Result callbackPayment(TradePay tradePay) {
log.info(">>>支付回调");
if (tradePay == null || tradePay.getOrderId() == null) {
CastException.cast(ShopCode.SHOP_REQUEST_PARAMETER_VALID);
}
//1. 判断用户支付状态
if (tradePay.getIsPaid().intValue() == ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY.getCode().intValue()) {
//2. 更新支付订单状态为已支付
Long payId = tradePay.getPayId();
TradePay pay = tradePayMapper.selectByPrimaryKey(payId);
//判断支付订单是否存在
if (pay == null) {
CastException.cast(ShopCode.SHOP_PAYMENT_NOT_FOUND);
}
pay.setIsPaid(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY.getCode());
int r = tradePayMapper.updateByPrimaryKeySelective(pay);
if (r == 1) {
//3. 创建支付成功的消息
TradeMqProducerTemp tradeMqProducerTemp = new TradeMqProducerTemp();
tradeMqProducerTemp.setId(String.valueOf(idWorker.nextId()));
tradeMqProducerTemp.setGroupName(groupName);
tradeMqProducerTemp.setMsgTopic(topic);
tradeMqProducerTemp.setMsgTag(tag);
tradeMqProducerTemp.setMsgKey(String.valueOf(tradePay.getPayId()));
tradeMqProducerTemp.setMsgBody(JSON.toJSONString(tradePay));
tradeMqProducerTemp.setCreateTime(new Date());
//4. 将消息持久化数据库
mqProducerTempMapper.insert(tradeMqProducerTemp);
log.info(">>>将支付成功消息持久化到数据库");
//在线程池中进行处理(异步处理)
threadPoolTaskExecutor.submit(() -> {
//5. 发送消息到MQ
SendResult result = null;
try {
result = sendMessage(topic, tag, String.valueOf(tradePay.getPayId()), JSON.toJSONString(tradePay));
} catch (Exception e) {
e.printStackTrace();
}
if (result.getSendStatus().equals(SendStatus.SEND_OK)) {
log.info(">>>消息发送成功");
//6. 等待发送结果,如果MQ接受到消息,删除发送成功的消息
mqProducerTempMapper.deleteByPrimaryKey(tradeMqProducerTemp.getId());
log.info(">>>持久化到数据库的消息删除");
}
});
}
return new Result(ShopCode.SHOP_SUCCESS.getSuccess(), ShopCode.SHOP_SUCCESS.getMessage());
} else {
// 状态为未支付
CastException.cast(ShopCode.SHOP_PAYMENT_PAY_ERROR);
return new Result(ShopCode.SHOP_FAIL.getSuccess(), ShopCode.SHOP_FAIL.getMessage());
}
}
/**
* 发送支付成功消息
* @param topic
* @param tag
* @param key
* @param body
* @return
*/
private SendResult sendMessage(String topic, String tag, String key, String body) throws InterruptedException, RemotingException, MQClientException, MQBrokerException {
if (StringUtils.isEmpty(topic)) {
CastException.cast(ShopCode.SHOP_MQ_TOPIC_IS_EMPTY);
}
if (StringUtils.isEmpty(body)) {
CastException.cast(ShopCode.SHOP_MQ_MESSAGE_BODY_IS_EMPTY);
}
Message message = new Message(topic, tag, key, body.getBytes());
return rocketMQTemplate.getProducer().send(message);
}
上面推送MQ消息, 以及等待响应后删除支付成功的数据信息是比较耗时的操作, 如果在高并发场景下影响性能，所以使用了线程池进行异步处理。需要在主启动类或配置类上增加线程池的实例对象。
@Bean
public ThreadPoolTaskExecutor threadPoolTaskExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(4);
executor.setMaxPoolSize(8);
executor.setQueueCapacity(100);
executor.setKeepAliveSeconds(60);
executor.setThreadNamePrefix("Pool-A");
executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
executor.initialize();
return executor;
}
5.2.3 处理消息
支付成功后，支付服务payService发送MQ消息，订单服务、用户服务、日志服务需要订阅消息进行后续处理。比如：
-
订单服务修改订单状态为已支付
-
日志服务记录支付日志
-
用户服务负责给用户增加积分
以下用订单服务为例说明消息的处理情况：
1）配置RocketMQ属性值
mq.pay.topic=payTopic
mq.pay.consumer.group.name=pay_payTopic_group
2）消费消息
在订单服务中新增支付成功的消息监听, 收到MQ发送的支付成功消息后进行订单支付状态的修改操作.
package com.crysw.shop.mq;
import com.alibaba.fastjson.JSON;
import com.crysw.constant.ShopCode;
import com.crysw.shop.entity.MQEntity;
import com.crysw.shop.mapper.TradeOrderMapper;
import com.crysw.shop.pojo.TradeOrder;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.spring.annotation.MessageModel;
import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import java.io.UnsupportedEncodingException;
/**
* 描述：MQ消息-支付成功的监听消费
* @author crysw
* @date 2022/8/11 22:45
* @version 1.0
*/
@Slf4j
@Component
@RocketMQMessageListener(topic = "${mq.pay.topic}", consumerGroup = "${mq.pay.consumer.group.name}", messageModel = MessageModel.BROADCASTING)
public class PaymentListener implements RocketMQListener<MessageExt> {
@Autowired
private TradeOrderMapper orderMapper;
@Override
public void onMessage(MessageExt messageExt) {
log.info(">>>接收到支付成功消息");
try {
//1. 解析消息内容
String body = new String(messageExt.getBody(), "utf-8");
MQEntity mqEntity = JSON.parseObject(body, MQEntity.class);
//2. 查询订单
TradeOrder order = orderMapper.selectByPrimaryKey(mqEntity.getOrderId());
//3.更新订单状态为已支付
order.setPayStatus(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY.getCode());
orderMapper.updateByPrimaryKey(order);
log.info(">>>订单状态设置为已支付");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
log.info(">>>订单状态修改失败");
}
}
}
5.3 单元测试
编写支付服务接口的单元测试
package com.crysw.test;
import com.crysw.api.IPayService;
import com.crysw.constant.ShopCode;
import com.crysw.shop.PayApplication;
import com.crysw.shop.pojo.TradePay;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import java.io.IOException;
import java.math.BigDecimal;
/**
* 描述：支付服务测试
0 * @author crysw
* @date 2022/8/12 21:13
* @version 1.0
*/
@SpringBootTest(classes = {PayApplication.class})
@RunWith(SpringRunner.class)
public class PayServiceTest {
@Autowired
private IPayService payService;
// 创建订单的待支付信息
@Test
public void createPayment() {
long orderId = 750137168931983360L;
TradePay tradePay = new TradePay();
tradePay.setOrderId(orderId);
tradePay.setPayAmount(new BigDecimal(880));
payService.createPayment(tradePay);
}
@Test
public void callbackPayment() throws IOException {
long payId = 4;
long orderId = 2;
TradePay tradePay = new TradePay();
tradePay.setPayId(payId);
tradePay.setOrderId(orderId);
tradePay.setIsPaid(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY.getCode());
payService.callbackPayment(tradePay);
System.in.read();
}
}
执行com.crysw.test.PayServiceTest#createPayment, 创建订单的待支付信息. 执行完成后支付表trade_pay会新增一条待支付的记录.
<data>
<row>
<pay_id>755868116554227712pay_id>
<order_id>750137168931983360order_id>
<pay_amount>880.00pay_amount>
<is_paid>0is_paid>
row>
data>
然后执行单元测试模拟支付成功的回调, 向MQ发送支付成功的消息.
2022-08-13 17:50:34.271 INFO 15136 --- [main] c.c.shop.service.impl.PayServiceImpl : >>>支付回调
2022-08-13 17:50:34.301 INFO 15136 --- [main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2022-08-13 17:50:34.306 WARN 15136 --- [ main] com.zaxxer.hikari.util.DriverDataSource : Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
2022-08-13 17:50:34.543 INFO 15136 --- [main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2022-08-13 17:50:34.688 INFO 15136 --- [main] c.c.shop.service.impl.PayServiceImpl : >>>将支付成功消息持久化到数据库
2022-08-13 17:52:50.145 INFO 15136 --- [lientSelector_1] RocketmqRemoting : closeChannel: close the connection to remote address[192.168.65.129:10911] result: true
数据库trade_mq_producer_temp消息生产临时表新增一条支付成功的消息记录. 从rocektMQ-console控制台也可以查询到发送的支付成功的消息.
<data>
<row>
<id>755888109555687424id>
<group_name>payProducerGroupgroup_name>
<msg_topic>payTopicmsg_topic>
<msg_tag>paidmsg_tag>
<msg_key>755868116554227712msg_key>
<msg_body>{"isPaid":2,"orderId":750137168931983360,"payId":755868116554227712}msg_body>
<msg_status>(NULL)msg_status>
<create_time>2022-08-13 17:50:35create_time>
row>
data>
启动优惠券服务, 商品服务, 用户服务, 订单服务 . 订单服务中的消费者监听到支付成功的消息后, 会进行更新订单支付状态的操作.
从debug断点可以看到消费消息的过程.
消费日志
2022-08-13 18:12:33.637 INFO 6280 --- [MessageThread_1] com.crysw.shop.mq.PaymentListener : >>>接收到支付成功消息
2022-08-13 18:14:36.533 WARN 6280 --- [l-1 housekeeper] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Thread starvation or clock leap detected (housekeeper delta=2m6s521ms847µs400ns).
2022-08-13 18:14:36.547 INFO 6280 --- [MessageThread_1] com.crysw.shop.mq.PaymentListener : >>>订单状态设置为已支付
订单表trade_order的订单支付状态已更新
<data>
<row>
<order_id>750137168931983360order_id>
<user_id>345963634385633280user_id>
<order_status>1order_status>
<pay_status>2pay_status>
<address>北京address>
<goods_id>345959443973935104goods_id>
<goods_number>1goods_number>
<goods_price>1000.00goods_price>
<shipping_fee>0.00shipping_fee>
<order_amount>1000.00order_amount>
<coupon_id>345988230098857984coupon_id>
<coupon_paid>20.00coupon_paid>
<money_paid>100.00money_paid>
<pay_amount>880.00pay_amount>
<add_time>2022-07-28 20:58:24add_time>
row>
data>
6. 整体联调
通过Rest客户端请求shop-order-web和shop-pay-web完成下单和支付操作. 首先创建shop-order-web和shop-pay-web模块.
6.1 准备工作
6.1.1 编写配置
编写配置类, 提供RestTemplate实例, 用来模拟web端的http请求调用.
package com.crysw.shop.config;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestFactory;
import org.springframework.http.client.SimpleClientHttpRequestFactory;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.client.RestOperations;
import org.springframework.web.client.RestTemplate;
import java.nio.charset.Charset;
import java.util.Iterator;
import java.util.List;
/**
* 描述：RestTemplate配置类
* @author crysw
* @date 2022/8/13 22:04
* @version 1.0
*/
@Configuration
public class RestTemplateConfig {
@Bean
@ConditionalOnMissingBean({RestOperations.class, RestTemplate.class})
public RestTemplate restTemplate(ClientHttpRequestFactory factory) {
RestTemplate restTemplate = new RestTemplate(factory);
// 使用 utf-8 编码集的 conver 替换默认的 conver（默认的 string conver 的编码集为"ISO-8859-1"）
List<HttpMessageConverter<?>> messageConverters = restTemplate.getMessageConverters();
Iterator<HttpMessageConverter<?>> iterator = messageConverters.iterator();
while (iterator.hasNext()) {
HttpMessageConverter<?> converter = iterator.next();
if (converter instanceof StringHttpMessageConverter) {
iterator.remove();
}
}
messageConverters.add(new StringHttpMessageConverter(Charset.forName("UTF-8")));
return restTemplate;
}
@Bean
@ConditionalOnMissingBean({ClientHttpRequestFactory.class})
public ClientHttpRequestFactory simpleClientHttpRequestFactory() {
SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
// ms
factory.setReadTimeout(15000);
// ms
factory.setConnectTimeout(15000);
return factory;
}
}
shop-order-web配置请求地址
server.host=http://localhost
server.servlet.path=/order-web
server.port=8086
# dubbo
spring.application.name=dubbo-order-consumer
spring.dubbo.application.id=dubbo-order-consumer
spring.dubbo.application.name=dubbo-order-consumer
spring.dubbo.registry.address=zookeeper://192.168.65.129:2181;zookeeper://192.168.65.129:2182;zookeeper://192.168.65.129:2183
## 使用自定义方式获取端口,是因为使用@Value注解获取server.port会获取到系统默认的-1,还没有解析到端口就返回了,导致url不对
order.port=8086
shop.order.baseURI=${server.host}:${order.port}${server.servlet.path}
shop.order.confirm=/order/confirm
shop-pay-web配置请求地址
server.host=http://localhost
server.servlet.path=/pay-web
server.port=8087
# dubbo
spring.application.name=dubbo-pay-consumer
spring.dubbo.application.id=dubbo-pay-consumer
spring.dubbo.application.name=dubbo-pay-consumer
spring.dubbo.registry.address=zookeeper://192.168.65.129:2181;zookeeper://192.168.65.129:2182;zookeeper://192.168.65.129:2183
# url
pay.port=8087
shop.pay.baseURI=${server.host}:${pay.port}${server.servlet.path}
shop.pay.createPayment=/pay/createPayment
shop.pay.callbackPayment=/pay/callBackPayment
6.1.2 编写controller
编写订单web服务
package com.crysw.shop.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import com.crysw.api.IOrderService;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradeOrder;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* 描述：订单web服务
* @author crysw
* @date 2022/8/13 22:05
* @version 1.0
*/
@RestController
@RequestMapping("/order")
public class OrderController {
@Reference
private IOrderService orderService;
/**
* 确认订单
* @param order
* @return
*/
@RequestMapping("/confirm")
public Result confirmOrder(@RequestBody TradeOrder order) {
return orderService.confirmOrder(order);
}
}
编写支付web服务
package com.crysw.shop.controller;
import com.alibaba.dubbo.config.annotation.Reference;
import com.crysw.api.IPayService;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradePay;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* 描述：支付web服务
* @author crysw
* @date 2022/8/14 21:58
* @version 1.0
*/
@RestController
@RequestMapping(value = "/pay")
public class PayController {
@Reference
private IPayService payService;
/**
* 创建订单支付信息
* @param pay
* @return
*/
@RequestMapping("/createPayment")
public Result createPayment(@RequestBody TradePay pay) {
return payService.createPayment(pay);
}
/**
* 支付成功的回调操作
* @param pay
* @return
* @throws Exception
*/
@RequestMapping("/callBackPayment")
public Result callBackPayment(@RequestBody TradePay pay) throws Exception {
return payService.callbackPayment(pay);
}
}
6.2 下单测试
shop-order-web编写测试代码, 模拟web界面发送http请求进行下单操作.
package com.crysw.test;
import com.crysw.shop.OrderWebApplication;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradeOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.web.client.RestTemplate;
import java.math.BigDecimal;
/**
* 描述：订单web服务测试
* @author crysw
* @date 2022/8/14 17:53
* @version 1.0
*/
@RunWith(SpringRunner.class)
@SpringBootTest(classes = {OrderWebApplication.class})
public class OrderWebTest {
@Autowired
private RestTemplate restTemplate;
@Value("${shop.order.baseURI}")
private String baseURI;
@Value("${shop.order.confirm}")
private String confirmOrderPath;
// 模拟界面发送http请求, 访问controller
@Test
public void confirmOrder() {
Long coupouId = 345988230098857984L;
Long goodsId = 345959443973935104L;
Long userId = 345963634385633280L;
// 创建订单
TradeOrder order = new TradeOrder();
order.setGoodsId(goodsId);
order.setUserId(userId);
order.setCouponId(coupouId);
order.setAddress("北京");
order.setGoodsNumber(1);
// 商品价格
order.setGoodsPrice(new BigDecimal(1000));
// 运费
order.setShippingFee(BigDecimal.ZERO);
// 订单金额 = 商品价格*数量 + 运费
order.setOrderAmount(new BigDecimal(1000));
// 已支付金额
order.setMoneyPaid(new BigDecimal(100));
Result result = restTemplate.postForEntity(baseURI + confirmOrderPath, order, Result.class).getBody();
System.out.println(result);
}
}
订单服务的测试日志
2022-08-14 18:24:09.179 INFO 15388 --- [:20884-thread-5] c.c.shop.service.impl.OrderServiceImpl : 校验订单通过
2022-08-14 18:24:09.210 INFO 15388 --- [:20884-thread-5] c.c.shop.service.impl.OrderServiceImpl : 订单: 756258946880245760扣减库存成功
2022-08-14 18:24:09.224 INFO 15388 --- [:20884-thread-5] c.c.shop.service.impl.OrderServiceImpl : 订单:756258946880245760,使用优惠券
2022-08-14 18:24:09.237 INFO 15388 --- [:20884-thread-5] c.c.shop.service.impl.OrderServiceImpl : 订单:756258946880245760,扣减余额成功
2022-08-14 18:24:09.243 INFO 15388 --- [:20884-thread-5] c.c.shop.service.impl.OrderServiceImpl : 订单:[756258946880245760]状态修改(确认)成功
查看库表trade_order也生成了一笔已确认的订单.
<data>
<row>
<order_id>756258946880245760order_id>
<user_id>345963634385633280user_id>
<order_status>1order_status>
<pay_status>0pay_status>
<shipping_status>(NULL)shipping_status>
<address>北京address>
<consignee>(NULL)consignee>
<goods_id>345959443973935104goods_id>
<goods_number>1goods_number>
<goods_price>1000.00goods_price>
<goods_amount>(NULL)goods_amount>
<shipping_fee>0.00shipping_fee>
<order_amount>1000.00order_amount>
<coupon_id>345988230098857984coupon_id>
<coupon_paid>20.00coupon_paid>
<money_paid>100.00money_paid>
<pay_amount>880.00pay_amount>
<add_time>2022-08-14 18:24:09add_time>
<confirm_time>2022-08-14 18:24:09confirm_time>
<pay_time>(NULL)pay_time>
row>
data>
查看trade_coupon表, 优惠券已被使用.
<data>
<row>
<coupon_id>345988230098857984coupon_id>
<coupon_price>20.00coupon_price>
<user_id>345963634385633280user_id>
<order_id>756258946880245760order_id>
<is_used>1is_used>
<used_time>2022-08-14 18:24:09used_time>
row>
data>
查看trade_goods表, 库存扣减1.
<data>
<row>
<goods_id>345959443973935104goods_id>
<goods_name>JavaSE课程goods_name>
<goods_number>999goods_number>
<goods_price>1000.00goods_price>
<goods_desc>传智播客出品Java视频课程goods_desc>
<add_time>2019-07-09 20:38:00add_time>
row>
data>
查看trade_user表, 用户余额扣减100.
<data>
<row>
<user_id>345963634385633280user_id>
<user_name>刘备user_name>
<user_password>123Luser_password>
<user_mobile>18888888888Luser_mobile>
<user_score>100user_score>
<user_reg_time>2019-07-09 13:37:03user_reg_time>
<user_money>900user_money>
row>
data>
查看trade_goods_number_log表, 新增一条商品订单操作记录.
<data>
<row>
<goods_id>345959443973935104goods_id>
<order_id>756258946880245760order_id>
<goods_number>-1goods_number>
<log_time>2022-08-14 18:24:09log_time>
row>
data>
6.3 支付测试
shop-pay-web编写测试代码, 模拟web界面发送http请求进行下单操作.
package com.crysw.test;
import com.crysw.constant.ShopCode;
import com.crysw.shop.PayWebApplication;
import com.crysw.shop.entity.Result;
import com.crysw.shop.pojo.TradePay;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.web.client.RestTemplate;
import java.math.BigDecimal;
/**
* 描述：支付web服务测试
* @author crysw
* @date 2022/8/14 22:12
* @version 1.0
*/
@RunWith(SpringRunner.class)
@SpringBootTest(classes = {PayWebApplication.class})
public class PayWebTest {
@Autowired
private RestTemplate restTemplate;
@Value("${shop.pay.baseURI}")
private String baseURI;
@Value("${shop.pay.createPayment}")
private String createPaymentPath;
@Value("${shop.pay.callbackPayment}")
private String callBackPaymentPath;
/**
* 创建订单支付信息测试
*/
@Test
public void createPayment() {
long orderId = 756258946880245760L;
TradePay tradePay = new TradePay();
tradePay.setOrderId(orderId);
tradePay.setPayAmount(new BigDecimal(880));
Result result = restTemplate.postForEntity(baseURI + createPaymentPath, tradePay, Result.class).getBody();
System.out.println(result);
}
/**
* 支付成功的回调操作测试
*/
@Test
public void callbackPayment() {
long payId = 756324893167067136L;
long orderId = 756258946880245760L;
TradePay tradePay = new TradePay();
tradePay.setPayId(payId);
tradePay.setOrderId(orderId);
tradePay.setIsPaid(ShopCode.SHOP_ORDER_PAY_STATUS_IS_PAY.getCode());
Result result = restTemplate.postForEntity(baseURI + callBackPaymentPath, tradePay, Result.class).getBody();
System.out.println(result);
}
}
启动shop-pay-service, shop-pay-web服务, 执行createPayment单元测试, 查看库表trade_pay新增一条订单待支付的记录.
<data>
<row>
<pay_id>756324893167067136pay_id>
<order_id>756258946880245760order_id>
<pay_amount>880.00pay_amount>
<is_paid>0is_paid>
row>
data>
执行callbackPayment单元测试, 查看库表trade_pay的支付状态已经更新为已付款.
<data>
<row>
<pay_id>756324893167067136pay_id>
<order_id>756258946880245760order_id>
<pay_amount>880.00pay_amount>
<is_paid>2is_paid>
row>
data>
查看库表trade_order, 订单的支付状态也更新为已支付.
<data>
<row>
<order_id>756258946880245760order_id>
<user_id>345963634385633280user_id>
<order_status>1order_status>
<pay_status>2pay_status>
<address>北京address>
<goods_id>345959443973935104goods_id>
<goods_number>1goods_number>
<goods_price>1000.00goods_price>
<shipping_fee>0.00shipping_fee>
<order_amount>1000.00order_amount>
<coupon_id>345988230098857984coupon_id>
<coupon_paid>20.00coupon_paid>
<money_paid>100.00money_paid>
<pay_amount>880.00pay_amount>
<add_time>2022-08-14 18:24:09add_time>
<confirm_time>2022-08-14 18:24:09confirm_time>
row>
data>