sptingboot 整合 seata1.6.1 (AT模式)

企业开发 2023-09-30 19:17:36 阅读次数: 0

目录

简介

Seata 是一款开源的分布式事务解决方案，致力于提供高性能和简单易用的分布式事务服务。Seata 将为用户提供了 AT、TCC、SAGA 和 XA 事务模式，为用户打造一站式的分布式解决方案

Seata：https://seata.io/zh-cn/index.html
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AT 模式

简介

seata：https://seata.io/zh-cn/docs/dev/mode/at-mode.html
Seata 中有三大模块，分别是 TM、RM 和 TC。其中 TM 和 RM 是作为 Seata 的客户端与业务系统集成在⼀起，TC 作为 Seata 的服务端独立部署。
TC (Transaction Coordinator)- 事务协调者 维护全局和分支事务的状态，驱动全局事务提交或回滚。
TM (Transaction Manager) - 事务管理器定义全局事务的范围：开始全局事务、提交或回滚全局事务。
RM (Resource Manager) - 资源管理器
管理分支事务处理的资源，与TC交谈以注册分支事务和报告分支事务的状态，并驱动分支事务提交或回滚。
Seata管理的分布式事务的典型生命周期：

在 Seata 中，分布式事务的执行流程：
TM 开启分布式事务, TM会 向 TC 注册全局事务记录；
操作具体业务模块的数据库操作之前, RM 会向 TC 注册分支事务；
当业务操作完事后.TM会通知 TC 提交/回滚分布式事务；
TC 汇总事务信息，决定分布式事务是提交还是回滚；
TC 通知所有 RM 提交/回滚 资源，事务二阶段结束。
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环境

准备环境

  • JDK 11、IDEA、Nacos 1.2 略
    启动nacos
.\startup.cmd -m standalone

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seata-server 1.6.1 准备

  1. 下载解压seata-server 1.6.1 https://github.com/seata/seata/releases
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  2. 新建mysql数据库，执行脚本文件..\seata\script\server\db\mysql.sql
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  3. COPY application.example.yml 修改 application.yml
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#  Copyright 1999-2019 Seata.io Group.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#  http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

server:
  port: 7091

spring:
  application:
    name: seata-server

logging:
  config: classpath:logback-spring.xml
  file:
    path: ${
    
    user.home}/logs/seata
  extend:
    logstash-appender:
      destination: 127.0.0.1:4560
    kafka-appender:
      bootstrap-servers: 127.0.0.1:9092
      topic: logback_to_logstash

console:
  user:
    username: seata
    password: seata

seata:
  config:
    # support: nacos, consul, apollo, zk, etcd3
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      group : "SEATA_GROUP"
      namespace: ""
      username: "nacos"
      password: "nacos"
  registry:
    # support: nacos, eureka, redis, zk, consul, etcd3, sofa
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      group : "SEATA_GROUP"
      namespace: ""
      username: "nacos"
      password: "nacos"
  store:
    # support: file 、 db 、 redis
    mode: db
    db:
      datasource: druid
      db-type: mysql
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true&rewriteBatchedStatements=true&serverTimezone=GMT
      user: root
      password: root
      min-conn: 5
      max-conn: 100
      global-table: global_table
      branch-table: branch_table
      lock-table: lock_table
      distributed-lock-table: distributed_lock
      query-limit: 100
      max-wait: 5000
#  server:
#    service-port: 8091 #If not configured, the default is '${server.port} + 1000'
  security:
    secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
    tokenValidityInMilliseconds: 1800000
    ignore:
      urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login
  1. 在nacos 配置中心新建seataServer.properties配置文件或 上传seata 配置
    配置文件位置…\seata\script\config-center
    github配置文件位置
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  • 方式一：利用nacos-config.sh 直接上传在这里插入图片描述在这里插入图片描述
 sh nacos-config.sh -h 127.0.0.1

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  • 方式一：添加配置文件的方式
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  1. 启动seata-server 1.6.1
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  • 作为服务注册到nacos注册中心
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  • seata控制台 http://localhost:7091/#/login 用户/密码:seata/seata
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sptingboot 整合 seata1.6.1 实现分布式事务AT模式

模拟下单，增加积分，扣减库存的场景。下单超过库存，下单失败，订单数据和积分数据回滚。 bussiness、order、points、storage 相当于服务拆分，可独立注册到nacos注册中心。

  1. 案例https://gitee.com/vipMygz/lagou_parent_seata.git
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  2. 创建数据库
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CREATE TABLE `t_order` (
  `id` bigint(20) NOT NULL COMMENT '订单id',
  `goods_Id` int(11) DEFAULT NULL COMMENT '商品ID',
  `num` int(11) DEFAULT NULL COMMENT '商品数量',
  `money` decimal(10,0) DEFAULT NULL COMMENT '商品总金额',
  `create_time` datetime DEFAULT NULL COMMENT '订单创建时间',
  `username` varchar(50) COLLATE utf8_bin DEFAULT NULL COMMENT '用户名称',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin ROW_FORMAT=DYNAMIC;

CREATE TABLE `t_points` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '积分ID',
  `username` varchar(50) COLLATE utf8_bin NOT NULL COMMENT '用户名',
  `points` int(11) DEFAULT NULL COMMENT '用户积分',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8 COLLATE=utf8_bin ROW_FORMAT=DYNAMIC;

CREATE TABLE `t_storage` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '库存ID',
  `goods_id` int(11) DEFAULT NULL COMMENT '商品ID',
  `storage` int(11) DEFAULT NULL COMMENT '库存量',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 COLLATE=utf8_bin ROW_FORMAT=DYNAMIC;
INSERT INTO `seata_storage`.`t_storage`(`id`, `goods_id`, `storage`) VALUES (1, 1, 100);

AT 模式在RM端需要 UNDO_LOG 表,来记录每个RM的事务信息,主要包含数据修改前,后的相关信息,用于回滚处理,所以在所有数据库中分别执行

-- 注意此处0.3.0+ 增加唯⼀索引 ux_undo_log
CREATE TABLE `undo_log` (
 `id` bigint(20) NOT NULL AUTO_INCREMENT,
 `branch_id` bigint(20) NOT NULL,
 `xid` varchar(100) NOT NULL,
 `context` varchar(128) NOT NULL,
 `rollback_info` longblob NOT NULL,
 `log_status` int(11) NOT NULL,
 `log_created` datetime NOT NULL,
 `log_modified` datetime NOT NULL,
 `ext` varchar(100) DEFAULT NULL,
 PRIMARY KEY (`id`),
 UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
  1. 父工程添加seata依赖
       <dependency>
                <groupId>io.seata</groupId>
                <artifactId>seata-all</artifactId>
                <version>1.6.1</version>
       </dependency>
  1. 公共模块 lagou_common_db 添加seata 依赖
 <!-- 注意一定要引入对版本，要引入spring-cloud版本seata，而不是springboot版本的seata-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
            <!-- 排除掉springcloud默认的seata版本，以免版本不一致出现问题-->
            <exclusions>
                <exclusion>
                    <groupId>io.seata</groupId>
                    <artifactId>seata-spring-boot-starter</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>io.seata</groupId>
                    <artifactId>seata-all</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- 上面排除掉了springcloud默认色seata版本，此处引入和seata-server版本对应的seata包-->
        <!-- <dependency>
             <groupId>io.seata</groupId>
             <artifactId>seata-spring-boot-starter</artifactId>
             <version>1.6.1</version>
         </dependency>-->
        <dependency>
            <groupId>io.seata</groupId>
            <artifactId>seata-all</artifactId>
            <version>1.6.1</version>
        </dependency>
  1. 公共模块 lagou_common_db 添加seata 配置
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# staet----------------------------seata服务配置
seata:
  # 切换XA模式
  enable: true
  data-source-proxy-mode: AT
  enable-auto-data-source-proxy: true
  config:
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      namespace: seata-server
      group: SEATA_GROUP
      username: nacos
      password: nacos
  registry:
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      namespace: seata-server
      application: seata-server
      group: SEATA_GROUP
      username: nacos
      password: nacos
  service:
    vgroup-mapping:
      default_tx_group: default
    disable-global-transaction: false
    grouplist:
      default: 127.0.0.1:8091
  tx-service-group: default_tx_group
spring:
  cloud:
    alibaba:
      seata:
        tx-service-group: default_tx_group
logging:
  level:
    seata: debug
  1. bussiness、order、points、storage 模块配置中依赖公共模块配置（支持seata）
spring:
  profiles:
    active: seata
  1. 封装数据源代理DatasourceProxy

package com.lagou.common_db.config;

import com.alibaba.druid.pool.DruidDataSource;
import io.seata.rm.datasource.DataSourceProxy;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

import javax.sql.DataSource;


/**
 * @author Mrwg
 * @date 2023/6/7 20:50
 * @description
 */

@Configuration
public class DataSourceConfiguration {
    
    

/**
     * 使⽤druid连接池
     *
     * @return
     */

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource() {
    
    
        return new DruidDataSource();
    }

    @Primary //设置⾸选数据源对象
    @Bean("dataSource")
    public DataSourceProxy dataSource(DataSource druidDataSource) {
    
    
        return new DataSourceProxy(druidDataSource);
    }
}
  1. 启动扫描配置类,分别加载每个工程的启动类中（bussiness、order、points、storage）
@SpringBootApplication(scanBasePackages = "com.lagou",exclude = DataSourceAutoConfiguration.class)
  1. 添加注解@GlobalTransactional
 /**
     * 商品销售
     *
     * @param goodsId  商品id
     * @param num      销售数量
     * @param username 用户名
     * @param money    金额
     */
//    @Transactional
    @GlobalTransactional(rollbackFor = Exception.class, timeoutMills = 60000, name = "sale")
    public void sale(Integer goodsId, Integer num, Double money, String username) {
    
    
        //创建订单
        orderServiceFeign.addOrder(idWorker.nextId(), goodsId, num, money, username);
        //增加积分
        pointsServiceFeign.increase(username, (int) (money / 10));
        //扣减库存
        storageServiceFeign.decrease(goodsId, num);
    }
  1. 启动个服务
  • seata-server控制台日志
17:57:54.481  INFO --- [ttyServerNIOWorker_1_1_24] i.s.c.r.processor.server.RegTmProcessor  : TM register success,message:RegisterTMRequest{
    
    applicationId='lagou-bussiness-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x04b67b1a, L:/127.0.0.1:8091 - R:/127.0.0.1:9728],client version:1.6.1
17:58:05.529  INFO --- [rverHandlerThread_1_1_500] i.s.c.r.processor.server.RegRmProcessor  : RM register success,message:RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_bussiness', applicationId='lagou-bussiness-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x067e82dd, L:/127.0.0.1:8091 - R:/127.0.0.1:9745],client version:1.6.1
17:58:12.452  INFO --- [ttyServerNIOWorker_1_3_24] i.s.c.r.processor.server.RegTmProcessor  : TM register success,message:RegisterTMRequest{
    
    applicationId='lagou-order-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x9dd35e2f, L:/127.0.0.1:8091 - R:/127.0.0.1:9756],client version:1.6.1
17:58:15.316  INFO --- [rverHandlerThread_1_2_500] i.s.c.r.processor.server.RegRmProcessor  : RM register success,message:RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_order', applicationId='lagou-order-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x7b88a875, L:/127.0.0.1:8091 - R:/127.0.0.1:9767],client version:1.6.1
17:58:25.741  INFO --- [ttyServerNIOWorker_1_5_24] i.s.c.r.processor.server.RegTmProcessor  : TM register success,message:RegisterTMRequest{
    
    applicationId='lagou-points-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x733fa529, L:/127.0.0.1:8091 - R:/127.0.0.1:9777],client version:1.6.1
17:58:28.209  INFO --- [rverHandlerThread_1_3_500] i.s.c.r.processor.server.RegRmProcessor  : RM register success,message:RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_points', applicationId='lagou-points-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x3b82fe76, L:/127.0.0.1:8091 - R:/127.0.0.1:9782],client version:1.6.1
17:58:44.460  INFO --- [ttyServerNIOWorker_1_7_24] i.s.c.r.processor.server.RegTmProcessor  : TM register success,message:RegisterTMRequest{
    
    applicationId='lagou-storage-service', transactionServiceGroup='default_tx_group'},channel:[id: 0x8939f9b1, L:/127.0.0.1:8091 - R:/127.0.0.1:9825],client version:1.6.1
17:58:47.678  INFO --- [rverHandlerThread_1_4_500] i.s.c.r.processor.server.RegRmProcessor  : RM register success,message:RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_storage', applicationId='lagou-storage-service', transactionServiceGroup='default_tx_group'},channel:[id: 0xb2be7179, L:/127.0.0.1:8091 - R:/127.0.0.1:9839],client version:1.6.1
  • nacos
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  • 本地各服务日志
 will connect to 127.0.0.1:8091
2023-06-08 18:04:04.638  INFO 10676 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : RM will register :jdbc:mysql://localhost:3306/seata_bussiness
2023-06-08 18:04:04.638  INFO 10676 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:RMROLE,address:127.0.0.1:8091,msg:< RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_bussiness', applicationId='lagou-bussiness-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:04.654  INFO 10676 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : register RM success. client version:1.6.1, server version:1.6.1,channel:[id: 0xa18c6e4b, L:/127.0.0.1:10510 - R:/127.0.0.1:8091]
2023-06-08 18:04:04.655  INFO 10676 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 11 ms, version:1.6.1,role:RMROLE,channel:[id: 0xa18c6e4b, L:/127.0.0.1:10510 - R:/127.0.0.1:8091]
2023-06-08 18:04:08.975  INFO 10676 --- [eoutChecker_1_1] i.s.c.r.netty.NettyClientChannelManager  : will connect to 127.0.0.1:8091
2023-06-08 18:04:08.975  INFO 10676 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:TMROLE,address:127.0.0.1:8091,msg:< RegisterTMRequest{
    
    applicationId='lagou-bussiness-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:08.990  INFO 10676 --- [eoutChecker_1_1] i.s.c.rpc.netty.TmNettyRemotingClient    : register TM success. client version:1.6.1, server version:1.6.1,channel:[id: 0x900d602b, L:/127.0.0.1:10520 - R:/127.0.0.1:8091]
2023-06-08 18:04:08.990  INFO 10676 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 9 ms, version:1.6.1,role:TMROLE,channel:[id: 0x900d602b, L:/127.0.0.1:10520 - R:/127.0.0.1:8091]
2023-06-08 18:06:58.277  INFO 10676 --- [h_RMROLE_1_1_24] i.s.c.r.p.client.RmUndoLogProcessor      : rm handle undo log process:UndoLogDeleteRequest{
    
    resourceId='jdbc:mysql://localhost:3306/seata_bussiness', saveDays=7, branchType=AT}



 will connect to 127.0.0.1:8091
2023-06-08 18:04:02.548  INFO 30184 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : RM will register :jdbc:mysql://localhost:3306/seata_order
2023-06-08 18:04:02.548  INFO 30184 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:RMROLE,address:127.0.0.1:8091,msg:< RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_order', applicationId='lagou-order-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:04.568  INFO 30184 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : register RM success. client version:1.6.1, server version:1.6.1,channel:[id: 0xe214ddcf, L:/127.0.0.1:10504 - R:/127.0.0.1:8091]
2023-06-08 18:04:04.569  INFO 30184 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 12 ms, version:1.6.1,role:RMROLE,channel:[id: 0xe214ddcf, L:/127.0.0.1:10504 - R:/127.0.0.1:8091]
2023-06-08 18:04:08.396  INFO 30184 --- [eoutChecker_1_1] i.s.c.r.netty.NettyClientChannelManager  : will connect to 127.0.0.1:8091
2023-06-08 18:04:08.396  INFO 30184 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:TMROLE,address:127.0.0.1:8091,msg:< RegisterTMRequest{
    
    applicationId='lagou-order-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:08.412  INFO 30184 --- [eoutChecker_1_1] i.s.c.rpc.netty.TmNettyRemotingClient    : register TM success. client version:1.6.1, server version:1.6.1,channel:[id: 0xb1003efc, L:/127.0.0.1:10515 - R:/127.0.0.1:8091]
2023-06-08 18:04:08.412  INFO 30184 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 10 ms, version:1.6.1,role:TMROLE,channel:[id: 0xb1003efc, L:/127.0.0.1:10515 - R:/127.0.0.1:8091]
2023-06-08 18:06:58.341  INFO 30184 --- [h_RMROLE_1_1_24] i.s.c.r.p.client.RmUndoLogProcessor      : rm handle undo log process:UndoLogDeleteRequest{
    
    resourceId='jdbc:mysql://localhost:3306/seata_order', saveDays=7, branchType=AT}





2023-06-08 18:04:02.301  INFO 26008 --- [eoutChecker_1_1] i.s.c.r.netty.NettyClientChannelManager  : will connect to 127.0.0.1:8091
2023-06-08 18:04:02.301  INFO 26008 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:TMROLE,address:127.0.0.1:8091,msg:< RegisterTMRequest{
    
    applicationId='lagou-points-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:04.504  INFO 26008 --- [eoutChecker_1_1] i.s.c.rpc.netty.TmNettyRemotingClient    : register TM success. client version:1.6.1, server version:1.6.1,channel:[id: 0x4a99ba24, L:/127.0.0.1:10503 - R:/127.0.0.1:8091]
2023-06-08 18:04:04.504  INFO 26008 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 194 ms, version:1.6.1,role:TMROLE,channel:[id: 0x4a99ba24, L:/127.0.0.1:10503 - R:/127.0.0.1:8091]
2023-06-08 18:04:05.851  INFO 26008 --- [eoutChecker_2_1] i.s.c.r.netty.NettyClientChannelManager  : will connect to 127.0.0.1:8091
2023-06-08 18:04:05.851  INFO 26008 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : RM will register :jdbc:mysql://localhost:3306/seata_points
2023-06-08 18:04:05.851  INFO 26008 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:RMROLE,address:127.0.0.1:8091,msg:< RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_points', applicationId='lagou-points-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:05.868  INFO 26008 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : register RM success. client version:1.6.1, server version:1.6.1,channel:[id: 0x3d960a16, L:/127.0.0.1:10512 - R:/127.0.0.1:8091]
2023-06-08 18:04:05.868  INFO 26008 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 11 ms, version:1.6.1,role:RMROLE,channel:[id: 0x3d960a16, L:/127.0.0.1:10512 - R:/127.0.0.1:8091]
2023-06-08 18:06:58.340  INFO 26008 --- [h_RMROLE_1_1_24] i.s.c.r.p.client.RmUndoLogProcessor      : rm handle undo log process:UndoLogDeleteRequest{
    
    resourceId='jdbc:mysql://localhost:3306/seata_points', saveDays=7, branchType=AT}


2023-06-08 18:04:04.537  INFO 20412 --- [eoutChecker_2_1] i.s.c.r.netty.NettyClientChannelManager  : will connect to 127.0.0.1:8091
2023-06-08 18:04:04.537  INFO 20412 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : RM will register :jdbc:mysql://localhost:3306/seata_storage
2023-06-08 18:04:04.537  INFO 20412 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:RMROLE,address:127.0.0.1:8091,msg:< RegisterRMRequest{
    
    resourceIds='jdbc:mysql://localhost:3306/seata_storage', applicationId='lagou-storage-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:04.561  INFO 20412 --- [eoutChecker_2_1] i.s.c.rpc.netty.RmNettyRemotingClient    : register RM success. client version:1.6.1, server version:1.6.1,channel:[id: 0x3125c6c4, L:/127.0.0.1:10509 - R:/127.0.0.1:8091]
2023-06-08 18:04:04.562  INFO 20412 --- [eoutChecker_2_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 19 ms, version:1.6.1,role:RMROLE,channel:[id: 0x3125c6c4, L:/127.0.0.1:10509 - R:/127.0.0.1:8091]
2023-06-08 18:04:08.824  INFO 20412 --- [eoutChecker_1_1] i.s.c.r.netty.NettyClientChannelManager  : will connect to 127.0.0.1:8091
2023-06-08 18:04:08.824  INFO 20412 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : NettyPool create channel to transactionRole:TMROLE,address:127.0.0.1:8091,msg:< RegisterTMRequest{
    
    applicationId='lagou-storage-service', transactionServiceGroup='default_tx_group'} >
2023-06-08 18:04:08.838  INFO 20412 --- [eoutChecker_1_1] i.s.c.rpc.netty.TmNettyRemotingClient    : register TM success. client version:1.6.1, server version:1.6.1,channel:[id: 0x8a3d9ec4, L:/127.0.0.1:10519 - R:/127.0.0.1:8091]
2023-06-08 18:04:08.838  INFO 20412 --- [eoutChecker_1_1] i.s.core.rpc.netty.NettyPoolableFactory  : register success, cost 9 ms, version:1.6.1,role:TMROLE,channel:[id: 0x8a3d9ec4, L:/127.0.0.1:10519 - R:/127.0.0.1:8091]
2023-06-08 18:06:58.276  INFO 20412 --- [h_RMROLE_1_1_24] i.s.c.r.p.client.RmUndoLogProcessor      : rm handle undo log process:UndoLogDeleteRequest{
    
    resourceId='jdbc:mysql://localhost:3306/seata_storage', saveDays=7, branchType=AT}

验证

库存为100，下单超过100即可触发分布式事务回滚。
http://localhost:8000/test1 正常下单，加积分，减库存。
http://localhost:8000/test2 异常下单，库存不足，回滚订单和积分。

  • http://localhost:8000/test1 正常下单，加积分，减库存。
    在这里插入图片描述
  • http://localhost:8000/test2 异常下单，库存不足，回滚订单和积分。
    在这里插入图片描述没有产生订单和积分数据，是我们期望的结果
    在这里插入图片描述
    在这里插入图片描述
    seata 控制台全局事务和分支事务回滚日志
    在这里插入图片描述
  • 断点可查看到seata 和 undo_log 数据变化
    在这里插入图片描述
    在这里插入图片描述
    在这里插入图片描述
    在这里插入图片描述

问题

可能遇到的问题？ 事务无法回滚？
参考来自https://www.cnblogs.com/huan1993/p/15416068.html
参考：Seata实战安装部署与Spring Cloud应用
参考：Seata整合SpringBoot和Mybatis

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