Seata1.4.1 + nacos 环境搭建

【1】将 seata-server-1.4.1.zip 下载到你的Linux上（本人使用CentOS7）

解压 seata-server-1.4.1.zip

解压后进入 seata/conf 目录

 

【2】修改 seata/conf 目录中的 file.conf

将 mode 选项值改为 db

 

 

 

【3】还是seata/conf 目录中的 file.conf 文件中，配置为你自己的 seata 数据库，需要自己创建一个数据库，这里用的 mysql

注意：如果是 mysql8 可能有问题，这里我用的是 docker 启动的一个 mysql5

 

 

 

【4】修改 seata/conf 目录中的 registry.conf

 

 

  type 值改为 nacos

application 是注册到nacos的seata服务名称，默认即可

serverAddr 是 nacos 服务地址

group 是 seata 在 nacos上注册服务的分组

namespace 是 nacos 命名空间ID（如果使用默认的 public 命名空间，可以注掉这行）

username和password是nacos验证，没有开启就可以注掉

 

【5】将下面这一堆保存为 seata/conf/nacos-config.sh 文件

while getopts ":h:p:g:t:u:w:" opt
do
  case $opt in
  h)
    host=$OPTARG
    ;;
  p)
    port=$OPTARG
    ;;
  g)
    group=$OPTARG
    ;;
  t)
    tenant=$OPTARG
    ;;
  u)
    username=$OPTARG
    ;;
  w)
    password=$OPTARG
    ;;
  ?)
    echo " USAGE OPTION: $0 [-h host] [-p port] [-g group] [-t tenant] [-u username] [-w password] "
    exit 1
    ;;
  esac
done

if [[ -z ${host} ]]; then
    host=localhost
fi
if [[ -z ${port} ]]; then
    port=8848
fi
if [[ -z ${group} ]]; then
    group="SEATA_GROUP"
fi
if [[ -z ${tenant} ]]; then
    tenant=""
fi
if [[ -z ${username} ]]; then
    username=""
fi
if [[ -z ${password} ]]; then
    password=""
fi

nacosAddr=$host:$port
contentType="content-type:application/json;charset=UTF-8"

echo "set nacosAddr=$nacosAddr"
echo "set group=$group"

failCount=0
tempLog=$(mktemp -u)
function addConfig() {
  curl -X POST -H "${contentType}" "http://$nacosAddr/nacos/v1/cs/configs?dataId=$1&group=$group&content=$2&tenant=$tenant&username=$username&password=$password" >"${tempLog}" 2>/dev/null
  if [[ -z $(cat "${tempLog}") ]]; then
    echo " Please check the cluster status. "
    exit 1
  fi
  if [[ $(cat "${tempLog}") =~ "true" ]]; then
    echo "Set $1=$2 successfully "
  else
    echo "Set $1=$2 failure "
    (( failCount++ ))
  fi
}

count=0
for line in $(cat $(dirname "$PWD")/config.txt | sed s/[[:space:]]//g); do
  (( count++ ))
    key=${line%%=*}
    value=${line#*=}
    addConfig "${key}" "${value}"
done

echo "========================================================================="
echo " Complete initialization parameters,  total-count:$count ,  failure-count:$failCount "
echo "========================================================================="

if [[ ${failCount} -eq 0 ]]; then
    echo " Init nacos config finished, please start seata-server. "
else
    echo " init nacos config fail. "
fi

 

【6】将下面这一堆保存为 seata/config.txt 文件，注意：是 seata 目录中

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.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=file
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.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:13306/seata?useUnicode=true
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
store.redis.host=127.0.0.1
store.redis.port=6379
store.redis.maxConn=10
store.redis.minConn=1
store.redis.database=0
store.redis.password=null
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=jackson
client.undo.onlyCareUpdateColumns=true
server.undo.logSaveDays=7
server.undo.logDeletePeriod=86400000
client.undo.logTable=undo_log
log.exceptionRate=100
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898

并将这三项修改为你的seata数据库配置信息：

store.db.url=jdbc:mysql://127.0.0.1:13306/seata?useUnicode=true
store.db.user=root
store.db.password=root

 

【7】进入 seata/conf 目录，执行下面指令

# -h -p 指定nacos的端口地址；-g 指定配置的分组，-t 指定命名空间id
$ sh nacos-config.sh -h localhost -p 8848 -g SEATA_GROUP -t 2275314e-9569-47f8-b4f7-65317cdf3025

这条指令是通过 nacos-config.sh 脚本将 seata/config.txt 中的配置导入到 nacos 中。

如下图，表示导入成功。

 

 

在 nacos 中查看相关配置，如下图所示：

 

 

 

 

【8】创建你自己的 seata mysql 数据库，然后执行下面SQL

-- 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`)
);

 

【9】在你的业务数据库中执行下面SQL，创建 undo_log 表（我的业务库是mysql8）

-- the table to store seata xid data
-- 0.7.0+ add context
-- you must to init this sql for you business databese. the seata server not need it.
-- 此脚本必须初始化在你当前的业务数据库中，用于AT 模式XID记录。与server端无关（注：业务数据库）
-- 注意此处0.3.0+ 增加唯一索引 ux_undo_log
-- drop table `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;

 

 

【10】在 seata 目录下创建 logs 目录，并在 logs 目录中创建 seata_gc.log 文件

$ mkdir logs
$ cd logs
$ touch seata_gc.log

 

 

【11】进入 seata/bin 目录，启动 seata 

$ ./seata-server.sh &

启动完成后，如果没报错，看一下nacos中的服务，seata注册进来了

 

 

 

 

 

【12】下面是项目中的maven配置

 

依赖管理 spring-cloud-alibaba-dependencies

    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.5.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

        </dependencies>
    </dependencyManagement>

 

依赖 spring-cloud-starter-alibaba-seata

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-seata</artifactId>
    <version>2.2.5.RELEASE</version>
</dependency>

 

 

【13】在项目 yml 中增加 seata 相关的配置

seata:
  enabled: true
  enable-auto-data-source-proxy: true
  tx-service-group: my_test_tx_group
  registry:
    type: nacos
    nacos:
      application: seata-server 
      server-addr: 192.168.1.132:8848　　　　　　　　　　# nacos服务地址
      namespace: 2275314e-9569-47f8-b4f7-65317cdf3025　　# 命名空间ID
  #      username: nacos
  #      password: nacos
config:
    type: nacos
    nacos:
      server-addr: 192.168.1.132:8848　　　　　　　　　　# nacos服务地址
      group: SEATA_GROUP
      #      username: nacos
      #      password: nacos
namespace: 2275314e-9569-47f8-b4f7-65317cdf3025　　# 命名空间ID
  service:
    vgroup-mapping:
      my_test_tx_group: default
    disable-global-transaction: false
  client:
    rm:
      report-success-enable: false

 

 

【14】最后，业务代码