使用seata1.3.0演示分布式事务完整demo

写在前面：

案例亮点：

1.代码中没有加入file.conf和registry.conf配置文件，seata的配置放在application.yaml配置文件中，多环境的时候好部署；

2.虽然该文章只列举部分关键，如果会的能够参考使用，如果不会的后面有全部资源（nacos、seata-server、所有sql表库导出，包含nacos_config库、全部代码），使用说明也比较完善；

3.使用案例，cloud、seata、nacos等jar包依赖都已经调节好，避免版本之间冲突，节约时间；

1.pom.xml

父pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.zxl</groupId>
    <artifactId>seata-demo</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>base-common</module>
        <module>order-service</module>
        <module>store-service</module>
        <module>account-service</module>
    </modules>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud-alibaba.version>2.2.6.RELEASE</spring-cloud-alibaba.version>
        <spring.cloud.version>Hoxton.SR9</spring.cloud.version>
        <springboot.version>2.3.2.RELEASE</springboot.version>
        <lombok.version>1.18.8</lombok.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <sikpTests>true</sikpTests>
        <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
        <maven-surefire-plugin.version>2.22.1</maven-surefire-plugin.version>
        <seata.version>1.4.2</seata.version>
        <druid.version>1.1.16</druid.version>
        <druid.spring.boot.starter.version>1.1.10</druid.spring.boot.starter.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${springboot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--Spring cloud Hoxton.SR1-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--Spring Cloud Alibaba-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>

            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>8.0.28</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${druid.spring.boot.starter.version}</version>
            </dependency>

            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>2.8.0</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>2.8.0</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.74</version>
            </dependency>

            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>2.1.1</version>
            </dependency>

            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>3.3.2</version>
            </dependency>

            <dependency>
                <groupId>commons-lang</groupId>
                <artifactId>commons-lang</artifactId>
                <version>2.6</version>
            </dependency>

        </dependencies>

    </dependencyManagement>


    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <version>${maven-source-plugin.version}</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
                <version>${maven-surefire-plugin.version}</version>
            </plugin>
        </plugins>
    </build>
</project>

项目pom

<?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>seata-demo</artifactId>
        <groupId>com.zxl</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>order-service</artifactId>

    <dependencies>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <!--<dependency>-->
            <!--<groupId>com.alibaba.cloud</groupId>-->
            <!--<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>-->
        <!--</dependency>-->

        <!-- Dubbo Spring Cloud -->
        <!--<dependency>-->
            <!--<groupId>com.alibaba.cloud</groupId>-->
            <!--<artifactId>spring-cloud-starter-dubbo</artifactId>-->
        <!--</dependency>-->

        <!-- Seata -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
        </dependency>
        <dependency>
            <groupId>io.seata</groupId>
            <artifactId>seata-spring-boot-starter</artifactId>
            <version>1.3.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--feign-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-actuator</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <!-- mybatis -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
        </dependency>
        <!-- mybatis -->

        <!--mybatis-generator-->
        <!--<dependency>-->
            <!--<groupId>org.mybatis.generator</groupId>-->
            <!--<artifactId>mybatis-generator-core</artifactId>-->
            <!--<version>1.3.7</version>-->
        <!--</dependency>-->
        <!--mybatis-generator-->

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>io.github.openfeign</groupId>
            <artifactId>feign-slf4j</artifactId>
            <version>11.8</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba.spring</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>1.0.11</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
        </dependency>

        <dependency>
            <groupId>com.zxl</groupId>
            <artifactId>base-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

2.application.yaml

server:
  port: 2001

spring:
  application:
    name: order-service
  main:
    # Spring Boot 2.1 需要设定
    allow-bean-definition-overriding: true
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://114.116.31.22:31004/seata_order?useUnicode=true&characterEncoding=UTF8&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&autoReconnect=true&&useSSL=false
    username: root
    password: Ks_Shift456

  cloud:
    nacos:
      # Nacos 服务发现与注册配置
      discovery:
        server-addr: 127.0.0.1:8848
        username: nacos
        password: nacos
    alibaba:
      seata:
        tx-service-group: my_test_tx_group

mybatis-plus:
  mapper-locations: classpath*:mapper/**.xml
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

ribbon:
  ReadTimeout: 60000
  ConnectTimeout: 60000

seata:
  registry:
    type: nacos
    nacos:
      application: seata-server
      server-addr: 127.0.0.1:8848
      group: SEATA_GROUP
      namespace: public
      cluster: default
      username: nacos
      password: nacos
  config:
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      namespace: public
      username: nacos
      password: nacos
      group: SEATA_GROUP

 

3.添加注解使用

@Override
    @GlobalTransactional(name = "order-service-com.zxl.invoice.buiss.service.impl.TOrderServiceImpl.create")
    public void create(TOrderEntity order) {
        // 1 新建订单
        log.info("----->开始新建订单");
        order.setStatus(0);
        this.save(order);

        // 2 扣减库存
        log.info("----->订单微服务开始调用库存,做扣减Count");
        storageService.decrease(order.getProductId(), order.getCount());
        log.info("----->订单微服务开始调用库存,做扣减End");

        // 3 扣减账户
        log.info("----->订单微服务开始调用账户,做扣减Money");
        accountService.decrease(order.getUserId(), order.getMoney());
        log.info("----->订单微服务开始调用账户,做扣减End");

        // 4 修改订单状态,从0到1,1代表已完成
        log.info("----->修改订单状态开始");
        TOrderEntity newOrder = new TOrderEntity(order.getId(), 1);
        this.updateById(newOrder);

        log.info("----->下订单结束了,O(∩_∩)O哈哈~");
    }

4.启动类

package com.zxl;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;

/**
 * @author: liurui
 * @date: 2022.7.31
 */
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
@EnableFeignClients
@EnableDiscoveryClient
@MapperScan("com.zxl.invoice.buiss.dao")
public class OrderService2001 {
    public static void main(String[] args) {
        SpringApplication.run(OrderService2001.class, args);
        System.out.println("=================================init ok!");
    }
}

4.案例说明

这个案例使用三个服务order-service、store-service、account-service

nacos使用的是1.4.2

seata使用1.3.0

 

这里只列举部分关键代码，如果查看完整代码、数据库配置、nacos和seata文件请解压zip

对应资源地址：https://download.youkuaiyun.com/download/liurui50/86339678