SpringCloud整合Seata1.6.1部署与使用Nacos方式

• • 二. seata-server配置
  • • 1.1 下载seater-server
    • 1.2 修改seata/conf/application.yml配置文件(已删除无用配置)
  • 二. nacos配置
  • • 2.1 新建namespace
    • 2.2 新建seata的seataServer.properties配置文件
  • 三. MySQL配置
  • • 3.1 新建seata数据库
    • 3.2 新建seata配置表
    • 3.3 业务数据库添加undo_log表
  • 4. seata-server启动
  • 五. SpringCloud整合Seata
  • • 5.1 pom.xml依赖引入
    • 5.2 bootstrap.yml
    • 5.3 启动服务
    • 5.4 使用

seata官网：http://seata.io/zh-cn/index.html
seata-server： https://github.com/seata/seata/releases
SpringCloud整合Seata出现异常数据未回滚的解决方案

二. seata-server配置

1.1 下载seater-server

下载指定版本seata-server，本案例使用v1.6.1版本。

1.2 修改seata/conf/application.yml配置文件(已删除无用配置)

server:port: 7091
spring:application:name: seata-server  # seata-server服务名
logging:config: classpath:logback-spring.xmlfile:path: ${user.home}/seata/runlogs  # 指定日志路径extend:logstash-appender:destination: 127.0.0.1:4560kafka-appender:bootstrap-servers: 127.0.0.1:9092topic: logback_to_logstash# seata可视化web界面账号密码
console:user:username: seatapassword: seataseata:# 配置中心config:# support: nacos, consul, apollo, zk, etcd3type: nacos # 指定配置中心为nacosnacos:server-addr: 127.0.0.1:8848  # nacos的ip端口group: DEFAULT_GROUP	# 对应的组，默认为DEFAULT_GROUPnamespace: a090b021-160c-42fb-98de-b1f9a5619d97 # 对应的命名空间，在nacos中配置username: nacospassword: nacosdata-id: seataServer.properties # nacos中存放seata的配置文件，后面会提该文件的使用方式，相当于seata服务启动的时候需要注册到nacos，并使用nacos中的配置文件# 注册中心与上述config同理registry:# support: nacos, eureka, redis, zk, consul, etcd3, sofatype: nacosnacos:application: seata-serverserver-addr: 127.0.0.1:8848namespace: a090b021-160c-42fb-98de-b1f9a5619d97group: DEFAULT_GROUPcluster: defaultusername: nacospassword: nacossecurity:secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017tokenValidityInMilliseconds: 1800000ignore:urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login

【注意】

• seata.config.type 与seata.registry.type 都要修改为nacos
• 修改config与registry中nacos的配置，其中namespace与group须提前在nacos中进行配置

二. nacos配置

2.1 新建namespace

新建namespace命名空间，需与上述seata-server的application.yml中配置一致

2.2 新建seata的seataServer.properties配置文件

在上述namespace下新建application.yml中seata.config.nacos.data-id提到的配置文件：seataServer.properties

seataServer.properties 已删除无用配置

#For details about configuration items, see https://seata.io/zh-cn/docs/user/configurations.html
#Transport configuration, for client and server
transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.enableTmClientBatchSendRequest=false
transport.enableRmClientBatchSendRequest=true
transport.enableTcServerBatchSendResponse=false
transport.rpcRmRequestTimeout=30000
transport.rpcTmRequestTimeout=30000
transport.rpcTcRequestTimeout=30000
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
transport.serialization=seata
transport.compressor=none#Transaction routing rules configuration, only for the client
# 此处的mygroup名字可以自定义，只修改这个值即可
service.vgroupMapping.mygroup=default
#If you use a registry, you can ignore it
service.default.grouplist=127.0.0.1:8091
service.enableDegrade=false
service.disableGlobalTransaction=false#Transaction rule configuration, only for the client
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=true
client.rm.tableMetaCheckerInterval=60000
client.rm.sqlParserType=druid
client.rm.reportSuccessEnable=false
client.rm.sagaBranchRegisterEnable=false
client.rm.sagaJsonParser=fastjson
client.rm.tccActionInterceptorOrder=-2147482648
client.tm.commitRetryCount=5
client.tm.rollbackRetryCount=5
client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
client.tm.interceptorOrder=-2147482648
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
client.undo.compress.enable=true
client.undo.compress.type=zip
client.undo.compress.threshold=64k
#For TCC transaction mode
tcc.fence.logTableName=tcc_fence_log
tcc.fence.cleanPeriod=1h#Log rule configuration, for client and server
log.exceptionRate=100#Transaction storage configuration, only for the server. The file, db, and redis configuration values are optional.
# 默认为file，一定要改为db，我们自己的服务启动会连接不到seata
store.mode=db
store.lock.mode=db
store.session.mode=db
#Used for password encryption#These configurations are required if the `store mode` is `db`. If `store.mode,store.lock.mode,store.session.mode` are not equal to `db`, you can remove the configuration block.
# 修改mysql的配置
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.cj.jdbc.Driver
# 指定seata的数据库，下面会提
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=banmajio
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.distributedLockTable=distributed_lock
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000#Transaction rule configuration, only for the server
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
server.distributedLockExpireTime=10000
server.xaerNotaRetryTimeout=60000
server.session.branchAsyncQueueSize=5000
server.session.enableBranchAsyncRemove=false
server.enableParallelRequestHandle=false#Metrics configuration, only for the server
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898

【注意】

1. 修改service.vgroupMapping.mygroup=default该值，其中mygroup可以自定义，后面我们自己的服务启动时，配置文件中需要指定该group。
2. 修改store.mode store.lock.mode store.session.mode这三个值为db，才能让seata连接到下面的数据库中。
3. 修改store.db配置项下的配置，连接到自己的数据库。
4. 该文件参数的具体作用参考官网：seata配置文件详解（官网）
5. 该配置源文件存放在seata目录下：seata/script/config-center/config.txt

三. MySQL配置

3.1 新建seata数据库

数据库的名称与上述3.2seata配置文件中的store.db.url保持一致。

3.2 新建seata配置表

在上述库中添加seata的配置表，sql文件存放在：seata/script/server/db/mysql.sql中

-- -------------------------------- The script used when storeMode is 'db' --------------------------------
-- the table to store GlobalSession data
CREATE TABLE IF NOT EXISTS `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_status_gmt_modified` (`status` , `gmt_modified`),KEY `idx_transaction_id` (`transaction_id`)
) ENGINE = InnoDBDEFAULT CHARSET = utf8mb4;-- the table to store BranchSession data
CREATE TABLE IF NOT EXISTS `branch_table`
(`branch_id`         BIGINT       NOT NULL,`xid`               VARCHAR(128) NOT NULL,`transaction_id`    BIGINT,`resource_group_id` VARCHAR(32),`resource_id`       VARCHAR(256),`branch_type`       VARCHAR(8),`status`            TINYINT,`client_id`         VARCHAR(64),`application_data`  VARCHAR(2000),`gmt_create`        DATETIME(6),`gmt_modified`      DATETIME(6),PRIMARY KEY (`branch_id`),KEY `idx_xid` (`xid`)
) ENGINE = InnoDBDEFAULT CHARSET = utf8mb4;-- the table to store lock data
CREATE TABLE IF NOT EXISTS `lock_table`
(`row_key`        VARCHAR(128) NOT NULL,`xid`            VARCHAR(128),`transaction_id` BIGINT,`branch_id`      BIGINT       NOT NULL,`resource_id`    VARCHAR(256),`table_name`     VARCHAR(32),`pk`             VARCHAR(36),`status`         TINYINT      NOT NULL DEFAULT '0' COMMENT '0:locked ,1:rollbacking',`gmt_create`     DATETIME,`gmt_modified`   DATETIME,PRIMARY KEY (`row_key`),KEY `idx_status` (`status`),KEY `idx_branch_id` (`branch_id`),KEY `idx_xid` (`xid`)
) ENGINE = InnoDBDEFAULT CHARSET = utf8mb4;CREATE TABLE IF NOT EXISTS `distributed_lock`
(`lock_key`       CHAR(20) NOT NULL,`lock_value`     VARCHAR(20) NOT NULL,`expire`         BIGINT,primary key (`lock_key`)
) ENGINE = InnoDBDEFAULT CHARSET = utf8mb4;INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('AsyncCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryRollbacking', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('TxTimeoutCheck', ' ', 0);

3.3 业务数据库添加undo_log表

-- 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;

4. seata-server启动

seata 的 /bin 目录下 ：/seata/bin 执行下面的脚本

sh seata-server.sh -p 8091 -h 127.0.0.1

参数解释：
-h： 将地址暴露给注册中心，其他服务可以访问seata服务器
-p：要侦听的端口

启动成功后，即可访问 http://127.0.0.1:7091/#/login 改地址进入seata的webui，用户名与密码默认为seata，可在上面的1.2章节中中提到的application.yml配置项：console.user中修改

并且查看nacos中的服务注册中心是否可以看到seata-server

至此，seater-server的配置与部署完成

五. SpringCloud整合Seata

5.1 pom.xml依赖引入

		com.alibaba.cloudspring-cloud-starter-alibaba-seataio.seataseata-spring-boot-starterio.seataseata-allio.seataseata-spring-boot-starter1.6.1

5.2 bootstrap.yml

配置文件中加入以下配置

seata:tx-service-group: mygroup # 事务分组名称，要和服务端对应service:vgroup-mapping:mygroup: default # key是事务分组名称 value要和服务端的机房名称保持一致

其中tx-service-group配置项要与 上述2.3章节中提到的service.vgroupMapping.mygroup=default中的group保持一致，
seata.service.vgroup-mapping.mygroup 中的mygroup同理。

5.3 启动服务

我们自己的服务要与seata-server服务在同一个namespace下
查看服务是否启动成功
查看nacos的对应的namespace中服务是否注册成功

5.4 使用

在外层接口上增加@GlobalTransactional注解

    @GetMapping("/remoteTest")@GlobalTransactionalpublic String remoteTest(){orderService.remoteTest();return "order success";}

只需要在最外层方法上添加注解即可，子事务方法上不需要添加@GlobalTransactional与@Transactional注解。