目录

一、docker安装seata-server1.4.0

1.seata-server配置

2.docker运行seata-server容器

二、spring cloud + seata1.4.0

1.添加seata1.4.0依赖

2.在需要添加分布式事务的服务中添加seata配置（application.yml）

3.在需要添加分布式事务的接口添加注解（@GlobalTransactional）

一、docker安装seata-server1.4.0

1.seata-server配置

• seata-server数据库初始化：global_table、branch_table、lock_table

-- the table to store GlobalSession data
drop table if exists `global_table`;
create table `global_table` (
  `xid` varchar(128)  not null,
  `transaction_id` bigint,
  `status` tinyint not null,
  `application_id` varchar(32),
  `transaction_service_group` varchar(32),
  `transaction_name` varchar(128),
  `timeout` int,
  `begin_time` bigint,
  `application_data` varchar(2000),
  `gmt_create` datetime,
  `gmt_modified` datetime,
  primary key (`xid`),
  key `idx_gmt_modified_status` (`gmt_modified`, `status`),
  key `idx_transaction_id` (`transaction_id`)
);
 
-- the table to store BranchSession data
drop table if exists `branch_table`;
create table `branch_table` (
  `branch_id` bigint not null,
  `xid` varchar(128) not null,
  `transaction_id` bigint ,
  `resource_group_id` varchar(32),
  `resource_id` varchar(256) ,
  `lock_key` varchar(128) ,
  `branch_type` varchar(8) ,
  `status` tinyint,
  `client_id` varchar(64),
  `application_data` varchar(2000),
  `gmt_create` datetime,
  `gmt_modified` datetime,
  primary key (`branch_id`),
  key `idx_xid` (`xid`)
);
 
-- the table to store lock data
drop table if exists `lock_table`;
create table `lock_table` (
  `row_key` varchar(128) not null,
  `xid` varchar(96),
  `transaction_id` long ,
  `branch_id` long,
  `resource_id` varchar(256) ,
  `table_name` varchar(32) ,
  `pk` varchar(36) ,
  `gmt_create` datetime ,
  `gmt_modified` datetime,
  primary key(`row_key`)
);

• 修改config.txt文件内容，使用mysql进行事务日志存储

service.vgroupMapping.workbench-system-group=default
service.default.grouplist=127.0.0.1:8091
service.enableDegrade=false
service.disableGlobalTransaction=false
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?serverTimezone=GMT%2b8&useUnicode=true&characterEncoding=utf8
store.db.user=root
store.db.password=root
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000

• 使用nacos-config.sh将config.txt上传到nacos配置列表

sh nacos-config.sh -h nacos-serverIP地址 -p nacos-server端口8848 -g seata的分组SEATA_GROUP

• 修改registry.conf文件内容，使用nacos作为seata-server的注册、配置中心

registry {
  type = "nacos"
  nacos {
    application = "seata-server"
    serverAddr = "127.0.0.1:8848"
    group = "SEATA_GROUP"
    namespace = "public"
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
}

config {
  type = "nacos"
  nacos {
    serverAddr = "127.0.0.1:8848"
    namespace = "public"
    group = "SEATA_GROUP"
    username = "nacos"
    password = "nacos"
  }
}

• 修改file.conf文件内容，主要配置seata-server的log存储方式

## transaction log store, only used in seata-server
store {
  mode = "db"
  db {
    datasource = "druid"
    dbType = "mysql"
    driverClassName = "com.mysql.jdbc.Driver"
    url = "jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true"
    user = "root"
    password = "root"
    minConn = 1
    maxConn = 3
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }
}

• 将registry.conf和file.conf文件远程至服务器的自定义文件夹下

2.docker运行seata-server容器

• docker拉取seata-server1.4.0官方镜像，启动seata容器

docker pull seataio/seata-server:1.4.0
docker run --name seata -p 8091:8091\ 
    -e SEATA_IP=127.0.0.1\
    -e STORE_MODE=db\
    -e SEATA_CONFIG_NAME=file:/root/seata-config/registry\ 
    -v /mydata/seata/conf:/root/seata-config\ 
    -d seataio/seata-server:1.4.0

二、spring cloud + seata1.4.0

• spring boot（2.3.5.RELEASE）+ spring cloud（Hoxton.RELEASE）

1.添加seata1.4.0依赖

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
    <version>2.2.0.RELEASE</version>
    <exclusions>
        <exclusion>
            <groupId>io.seata</groupId>
            <artifactId>seata-spring-boot-starter</artifactId>
         </exclusion>
     </exclusions>
</dependency>
<dependency>
    <groupId>io.seata</groupId>
    <artifactId>seata-spring-boot-starter</artifactId>
    <version>1.4.0</version>
</dependency>

2.在需要添加分布式事务的服务中添加seata配置（application.yml）

seata:
  enabled: true
  application-id: ${spring.application.name}
  #seata-server中service.vgroupMapping.workbench-system-group=default保持一致
  tx-service-group: workbench-system-group
  enable-auto-data-source-proxy: true
  service:
    vgroup-mapping:
      workbench-system-group: default
  config:
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      group: SEATA_GROUP
      username: "nacos"
      password: "nacos"
  registry:
    type: nacos
    nacos:
      application: seata-server
      server-addr: 127.0.0.1:8848
      group: SEATA_GROUP
      username: "nacos"
      password: "nacos"
      cluster: default

3.为需要添加分布式事务的服务添加客户端的SQL（undo_log.sql）

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;

4.在需要添加分布式事务的接口添加注解（@GlobalTransactional）

@GlobalTransactional(name = "user-registry", rollbackFor = Exception.class)
public boolean register(UserParam userParam) {}