版本

Spring Cloud Alibaba 2021.0.1
seata 1.4.2
nacos 2.0.3

一、下载

地址：https://github.com/seata/seata/releases/tag/v1.4.2
下载 service文件和源码文件，并解压
在这里插入图片描述

二、初始化数据库

在源码文件中 seata-1.4.2/script/server/db/mysql.sql, 导入数据库 seata中
在微服务的数据库中创建 undo_log表

CREATE TABLE `undo_log` (
  `id` bigint NOT NULL AUTO_INCREMENT,
  `branch_id` bigint NOT NULL,
  `xid` varchar(100) NOT NULL,
  `context` varchar(128) NOT NULL,
  `rollback_info` longblob NOT NULL,
  `log_status` int NOT NULL,
  `log_created` datetime NOT NULL,
  `log_modified` datetime NOT NULL,
  `ext` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=115 DEFAULT CHARSET=utf8mb3 ROW_FORMAT=DYNAMIC;

三、nacos文件配置

配置文件在seata-server源码文件下：/seata-1.4.2/script/config-center/config.txt
在对应的nacos命名空间创建文件: dataId：seataServer.properties group: SEATA_GROUP
注意：store.mode 存储模式； store.db.driverClassName jdbc驱动类（我用的mysql8)；client.undo.logSerialization序列化，默认jackson（会报错）,改成了kryo,需要单独加依赖

transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableClientBatchSendRequest=false
transport.threadFactory.bossThreadPrefix=NettyBoss
transport.threadFactory.workerThreadPrefix=NettyServerNIOWorker
transport.threadFactory.serverExecutorThreadPrefix=NettyServerBizHandler
transport.threadFactory.shareBossWorker=false
transport.threadFactory.clientSelectorThreadPrefix=NettyClientSelector
transport.threadFactory.clientSelectorThreadSize=1
transport.threadFactory.clientWorkerThreadPrefix=NettyClientWorkerThread
transport.threadFactory.bossThreadSize=1
transport.threadFactory.workerThreadSize=default
transport.shutdown.wait=3
service.vgroupMapping.my_test_tx_group=default
service.default.grouplist=127.0.0.1:8091
service.enableDegrade=false
service.disableGlobalTransaction=false
client.rm.asyncCommitBufferLimit=10000
client.rm.lock.retryInterval=10
client.rm.lock.retryTimes=30
client.rm.lock.retryPolicyBranchRollbackOnConflict=true
client.rm.reportRetryCount=5
client.rm.tableMetaCheckEnable=false
client.rm.tableMetaCheckerInterval=60000
client.rm.sqlParserType=druid
client.rm.reportSuccessEnable=false
client.rm.sagaBranchRegisterEnable=false
client.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
store.mode=db
store.publicKey=
store.file.dir=file_store/data
store.file.maxBranchSessionSize=16384
store.file.maxGlobalSessionSize=512
store.file.fileWriteBufferCacheSize=16384
store.file.flushDiskMode=async
store.file.sessionReloadReadSize=100
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.cj.jdbc.Driver
store.db.url=jdbc:mysql://192.168.3.110:3316/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=yht_mysql@2022
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
store.redis.mode=single
store.redis.single.host=127.0.0.1
store.redis.single.port=6379
store.redis.sentinel.masterName=
store.redis.sentinel.sentinelHosts=
store.redis.maxConn=10
store.redis.minConn=1
store.redis.maxTotal=100
store.redis.database=0
store.redis.password=
store.redis.queryLimit=100
server.recovery.committingRetryPeriod=1000
server.recovery.asynCommittingRetryPeriod=1000
server.recovery.rollbackingRetryPeriod=1000
server.recovery.timeoutRetryPeriod=1000
server.maxCommitRetryTimeout=-1
server.maxRollbackRetryTimeout=-1
server.rollbackRetryTimeoutUnlockEnable=false
client.undo.dataValidation=true
client.undo.logSerialization=kryo
client.undo.onlyCareUpdateColumns=true
server.undo.logSaveDays=7
server.undo.logDeletePeriod=86400000
client.undo.logTable=undo_log
client.undo.compress.enable=true
client.undo.compress.type=zip
client.undo.compress.threshold=64k
log.exceptionRate=100
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898

四、修改配置文件

修改 seata-server-1.4.2\conf\registry.conf

registry {
  # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  type = "nacos"

  nacos {
    application = "seata-server"
    serverAddr = "127.0.0.1:8848"
    group = "SEATA_GROUP"
    namespace = "fb640813-f8ff-458d-a4c4-66ca056e92ee"
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
}

config {
  # file、nacos 、apollo、zk、consul、etcd3
  type = "nacos"

  nacos {
    serverAddr = "127.0.0.1:8848"
    namespace = "fb640813-f8ff-458d-a4c4-66ca056e92ee"
    group = "SEATA_GROUP"
    username = "nacos"
    password = "nacos"
    dataId = "seataServer.properties"
  }
}

修改 seata-server-1.4.2\conf\file.conf

## transaction log store, only used in seata-server
store {
  ## store mode: file、db、redis
  mode = "db"
  ## rsa decryption public key
  publicKey = ""

  ## database store property
  db {
    ## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.
    datasource = "druid"
    ## mysql/oracle/postgresql/h2/oceanbase etc.
    dbType = "mysql"
    driverClassName = "com.mysql.cj.jdbc.Driver"
    ## if using mysql to store the data, recommend add rewriteBatchedStatements=true in jdbc connection param
    url = "jdbc:mysql://127.0.0.1:3306/seata?rewriteBatchedStatements=true&serverTimezone=Asia/Shanghai"
    user = "root"
    password = "pwd"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }
}

五、运行

执行 D:\ITSoftware\seata\seata-server-1.4.2\binseata-server.bat 即可，
查看nacos是否注册进去
在这里插入图片描述

六、项目整合

1.pom添加依赖

   <!--解决seata序列化问题-->
        <dependency>
            <groupId>io.seata</groupId>
            <artifactId>seata-serializer-kryo</artifactId>
            <version>1.4.2</version>
        </dependency>

        <!--            分布式事务-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
        </dependency>

2.yaml添加配置

#seata配置
seata:
  tx-service-group: my_test_tx_group  #对应seataServer.properties中的service.vgroupMapping.my_test_tx_group 集群分组
  registry:
    type: nacos   #注册中心类型：nacos
    nacos:
      application: seata-server      # seata-server注册在nacos中的服务名
      server-addr: 127.0.0.1:8848 # nacos的地址端口
      group : SEATA_GROUP            # seata-server在nacos的分组
      namespace: fb640813-f8ff-458d-a4c4-66ca056e92ee  # seata-server在nacos的命名空间ID
      username: nacos                # nacos账号
      password: nacos                # nacos密码
  config:
    type: nacos
    nacos:
      server-addr: 127.0.0.1:8848
      group: SEATA_GROUP
      namespace: fb640813-f8ff-458d-a4c4-66ca056e92ee   # seata-server的配置文件的命名空间ID
      dataId: seataServer.properties       # seata-server在nacos的配置dataId
      username: nacos
      password: nacos

七、docker-compose部署

1.创建容器挂在的配置文件和日志文件，
mkdir -p /home/opt/seata/config
mkdir -p /home/opt/seata/logs
2. 把刚才修改的file.conf 和 registry.conf 放在 /home/opt/seata/config 文件夹下
3.docker-compose.yml 文件

version: '3.3'
services:
  seata:
    image: seataio/seata-server:1.4.2      # 原镜像`seataio/seata-server:1.4.2`
    container_name: chongy-seata                                  # 容器名为'seata_server'
    restart: unless-stopped                                       # 指定容器退出后的重启策略为始终重启，但是不考虑在Docker守护进程启动时就已经停止了的容器
    network_mode: host
    volumes:                                                      # 数据卷挂载路径设置,将本机目录映射到容器目录
      - "/home/opt/seata/config:/root/seata-config"
      - "/home/opt/seata/logs:/root/logs"
    environment:                        # 设置环境变量,相当于docker run命令中的-e
      TZ: Asia/Shanghai
      LANG: en_US.UTF-8
      SEATA_PORT: 8091 # 指定seata-server启动的端口, 默认为 8091
      # 指定配置文件位置, 如 file:/root/registry, 将会加载 /root/registry.conf 作为配置文件，
      # 如果需要同时指定 file.conf文件，需要将registry.conf的config.file.name的值改为类似file:/root/file.conf：
      SEATA_CONFIG_NAME: file:/root/seata-config/registry

原文链接：https://blog.csdn.net/qq_41979215/article/details/129884062