Spring Cloud Alibaba之集成seata1.4.2+nacos（docker部署）

一、前提版本说明： 1、springboot版本pom

 
        org.springframework.boot
        spring-boot-starter-parent
        2.2.4.RELEASE
        
    

2、nacos版本

        2.1、server版本：1.4.0 ps：我用的比较老 反正没有出现什么问题

        2.2、client项目引入：

<--项目从nacos动态读取配置需要引入--> 

            com.alibaba.cloud
           spring-cloud-starter-alibaba-nacos-config
           2.2.6.RELEASE
 
<--项目注册到nacos需要引入--> 
 
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
            2.2.6.RELEASE

3、seata版本

        3.1、seata 服务端版本：1.4.2

        3.2、client项目引入：

            com.alibaba.cloud
            spring-cloud-starter-alibaba-seata
            2.2.6.RELEASE

二、进入正文 安装nacos

进入服务器 使用 ：docker安装 seata

安装步骤：

1、使用docker 拉取 seata 镜像

docker pull seataio/seata-server:1.4.2 

2、启动镜像： 

docker run -d --name seata-server  -e SEATA_IP=39.xx.xx.xx  -e SEATA_PORT=8091 -p 8091:8091  seataio/seata-server:1.4.2

ps：

--name seata-server     注册到nacos的话，服务名称就是seata-server，个人理解相当于springboot 配置中的（spring.application.name=product）欢迎指正。

SEATA_IP=39.xx.xx.xx  服务器的外网ip

-e SEATA_PORT=8091 seata的服务端口

-p 8091:8091                  宿主机与容器的端口映射

3、查看运行容器

docker ps

红色框内 container id 后面拷贝会用到

ps：如果出现seata-server 代表启动成功

4、修改seata配置文件

4.1、拷贝容器内文件file.conf到容器外的/usr/local/seata径下  

docker cp 2177b74a2b84:/seata-server/resources/file.conf   /usr/local/seata/file.conf 

4.2、拷贝容器内文件registry.conf到容器外的/usr/local/seata径下

docker cp 2177b74a2b84:/seata-server/resources/registry.conf   /usr/local/seata/registry.conf

ps:将 seata的两个配置文件复制到宿主机文件里面-便于更改

4.3、进入 /usr/local/seata文件夹

cd /usr/local/seata

5、更改 registry.conf  重点！！！是1.4.2版本更新的新东西（下面有需要修改的内容以及，各个属性的说明。我真是贴心.....）

5.1、registry.conf文件全部内容：

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

  nacos {
    application = "seata-server"
    serverAddr = "xx.xx.xx.xx:8848"
    group = "test"
    namespace = "57b60655-ab37-48dd-9ab7-xx3c28aa8ab4"
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
  eureka {
    serviceUrl = "http://localhost:8761/eureka"
    application = "default"
    weight = "1"
  }
  redis {
    serverAddr = "localhost:6379"
    db = 0
    password = ""
    cluster = "default"
    timeout = 0
  }
  zk {
    cluster = "default"
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 6000
    connectTimeout = 2000
    username = ""
    password = ""
  }
  consul {
    cluster = "default"
    serverAddr = "127.0.0.1:8500"
    aclToken = ""
  }
  etcd3 {
    cluster = "default"
    serverAddr = "http://localhost:2379"
  }
  sofa {
    serverAddr = "127.0.0.1:9603"
    application = "default"
    region = "DEFAULT_ZONE"
    datacenter = "DefaultDataCenter"
    cluster = "default"
    group = "SEATA_GROUP"
    addressWaitTime = "3000"
  }
  file {
    name = "file.conf"
  }
}

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

  nacos {
    serverAddr = "xx.xx.xx.xx:8848"
    namespace = "57b60655-ab37-48dd-9ab7-xx3c28aa8ab4"
    group = "test"
    username = "nacos"
    password = "nacos"
    dataId = "seataServer.properties"
  }
  consul {
    serverAddr = "127.0.0.1:8500"
    aclToken = ""
  }
  apollo {
    appId = "seata-server"
    ## apolloConfigService will cover apollometa
    apollometa = "http://192.168.1.204:8801"
    apolloConfigService = "http://192.168.1.204:8080"
    namespace = "application"
    apolloAccesskeySecret = ""
    cluster = "seata"
  }
  zk {
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 6000
    connectTimeout = 2000
    username = ""
    password = ""
    nodePath = "/seata/seata.properties"
  }
  etcd3 {
    serverAddr = "http://localhost:2379"
  }
  file {
    name = "file.conf"
  }
}

registry.conf文件第一部分修改内容 registry.nacos属性说明：

registry.type =nacos       意思是将服务注册到nacos（registry.type指定nacos后就只设置registry.nacos中的属性就好了）

registry.nacos.application= "seata-server"          seata在nacos中的服务名称

registry.nacos.serverAddr= ""xx.xx.xx.xx:8848"   nacos的访问地址|端口

registry.nacos.group= "test"                                  下面有图

registry.nacos. namespace = "57b60655-ab37-48dd-9ab7-xxxc28aa8ab4"  下面有图

registry.nacos. cluster = "default"                          默认就好了 

registry.nacos.username = "nacos"                       nacos的登录账号

registry.nacos. password = "nacos"                       nacos的登录密码

---------------------------------------------------------------------------------------------------------------------

registry.conf文件第二部分修改内容 属性说明

config.type ="nacos"  seata的配置从nacos读取，config.type ="nacos"  那就只设置config.nacos中的属性就好了

其他 参考registry.nacos (步骤5.1) 中的nacos配置

group = "test"
namespace = "57b60655-ab37-48dd-9ab7-853c28aa8ab4"

dataId = "seataServer.properties"  这个很重要 代表从nacos中 

分组group = "test"   ； 命名空间namespace = "57b60655-ab37-48dd-9ab7-853c28aa8ab4"   seataServer.properties 配置中读取配置

6、更改 file.conf  (后面有更改内容，以及说明)

file.conf文件全部内容：

## transaction log store, only used in seata-server
store {
  ## store mode: file、db、redis
  mode = "db"
  ## rsa decryption public key
  publicKey = ""
  ## file store property
  file {
    ## store location dir
    dir = "sessionStore"
    # branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
    maxBranchSessionSize = 16384
    # globe session size , if exceeded throws exceptions
    maxGlobalSessionSize = 512
    # file buffer size , if exceeded allocate new buffer
    fileWriteBufferCacheSize = 16384
    # when recover batch read size
    sessionReloadReadSize = 100
    # async, sync
    flushDiskMode = async
  }

  ## 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://xx.xx.xx.xx:3306/seata?useSSL=true&serverTimezone=GMT"
    user = "seata"
    password = "seata"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }

  ## redis store property
  redis {
    ## redis mode: single、sentinel
    mode = "single"
    ## single mode property
    single {
      host = "127.0.0.1"
      port = "6379"
    }
    ## sentinel mode property
    sentinel {
      masterName = ""
      ## such as "10.28.235.65:26379,10.28.235.65:26380,10.28.235.65:26381"
      sentinelHosts = ""
    }
    password = ""
    database = "0"
    minConn = 1
    maxConn = 10
    maxTotal = 100
    queryLimit = 100
  }
}

根据个人理解 在registry.conf中的 registry.conf.type=nacos时 其实不用设置这个文件-仅仅个理解，没有去验证，也没有找到说明相关问题的文章。。。。。（得到了证实，只有registry.conf.type = file的时候才会读取这个文件）

---------------------------------------------------------------------------------------------------------

store.mode=db         意思是 seata在使用过程中开启事务时会产生临时数据以及回滚数据 使用数据库保存（ 设置了 store.mode=db之后 只设置store.db的属性就可以了）

store.db.datasource = "druid"        

store.db.dbType = "mysql"               

store.db. driverClassName = "com.mysql.cj.jdbc.Driver"    

store.db.url = "jdbc:mysql://xx.xx.xx.xx:3306/seata?useSSL=true&serverTimezone=GMT"

                                            xx.xx.xx.xx:3306/seata        替换成自己的数据库路径

store.db.user = "seata"                                                        数据库账号

store.db. password = "seata"                                              数据库密码

其他的根据需要更改.......

注意：

store.db. driverClassName = "com.mysql.cj.jdbc.Driver" 我使用的数据库是mysql8如果使用mysql5的话 改成的 store.db. driverClassName = "com.mysql.jdbc.Driver"

-----------------------------------------------------------

7、将修改好的文件复制回docker容器内 

docker cp file.conf   2177b74a2b84:/seata-server/resources/file.conf
docker cp registry.conf  2177b74a2b84:/seata-server/resources/registry.conf

8、上传seata配置文件到nacos上传配置

这一步的目的说明：

docker中运行的 seata-server 会从nacos中读取配置 ，如果想修改seata的配置就从nacos修改，为了方便

创建配置时要与registry.conf文件中的

----------重点-------------

registry.conf.group = "test"；

registry.conf.namespace =  ""57b60655-ab37-48dd-9ab7-xx3c28aa8ab4""；

dataId = "seataServer.properties"

值一定要 一 一对应起来

----------重点-------------

8.1、nacos和seata配置文件说明

8.2、seataServer.properties配置

8.3、 配置内容

client.tm.defaultGlobalTransactionTimeout=60000
client.tm.degradeCheck=false
client.tm.degradeCheckAllowTimes=10
client.tm.degradeCheckPeriod=2000
client.tm.interceptorOrder=-2147482648
store.mode=db
store.lock.mode=db
store.session.mode=file
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://xx.xx.xx.xx.com:3306/seata?useSSL=true&serverTimezone=GMT
store.db.user=seata
store.db.password=seata
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
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
server.distributedLockExpireTime=10000
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
log.exceptionRate=100
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898
tcc.fence.logTableName=tcc_fence_log
tcc.fence.cleanPeriod=1h
server.session.branchAsyncQueueSize=5000
server.session.enableBranchAsyncRemove=true
service.vgroupMapping.default_tx_group=default
service.vgroupMapping.uat_tx_group=default
service.vgroupMapping.test_tx_group=default
service.vgroupMapping.prod_tx_group=default

说明：

service.vgroupMapping.default_tx_group=default
service.vgroupMapping.uat_tx_group=default
service.vgroupMapping.test_tx_group=default
service.vgroupMapping.prod_tx_group=default

这几个配置分别对应不同的项目环境使用的事务组；配置内容很重要

事务组说明链接

9、重启 seata

docker restart 2177b74a2b84

10、创建表         10.1、将你在file.conf的中设置的数据库中创建3张表

CREATE TABLE `lock_table`  (
  `row_key` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `xid` varchar(96) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `transaction_id` mediumtext CHARACTER SET utf8 COLLATE utf8_general_ci NULL,
  `branch_id` mediumtext CHARACTER SET utf8 COLLATE utf8_general_ci NULL,
  `resource_id` varchar(256) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `table_name` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `pk` varchar(36) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `gmt_create` datetime(0) NULL DEFAULT NULL,
  `gmt_modified` datetime(0) NULL DEFAULT NULL,
  PRIMARY KEY (`row_key`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '存储锁表' ROW_FORMAT = Dynamic;

CREATE TABLE `global_table`  (
  `xid` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `transaction_id` bigint(20) NULL DEFAULT NULL,
  `status` tinyint(4) NOT NULL,
  `application_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `transaction_service_group` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `transaction_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `timeout` int(11) NULL DEFAULT NULL,
  `begin_time` bigint(20) NULL DEFAULT NULL,
  `application_data` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `gmt_create` datetime(0) NULL DEFAULT NULL,
  `gmt_modified` datetime(0) NULL DEFAULT NULL,
  PRIMARY KEY (`xid`) USING BTREE,
  INDEX `idx_gmt_modified_status`(`gmt_modified`, `status`) USING BTREE,
  INDEX `idx_transaction_id`(`transaction_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '分支事务表' ROW_FORMAT = Dynamic;
CREATE TABLE `branch_table`  (
  `branch_id` bigint(20) NOT NULL,
  `xid` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `transaction_id` bigint(20) NULL DEFAULT NULL,
  `resource_group_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `resource_id` varchar(256) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `lock_key` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `branch_type` varchar(8) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `status` tinyint(4) NULL DEFAULT NULL,
  `client_id` varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `application_data` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  `gmt_create` datetime(0) NULL DEFAULT NULL,
  `gmt_modified` datetime(0) NULL DEFAULT NULL,
  PRIMARY KEY (`branch_id`) USING BTREE,
  INDEX `idx_xid`(`xid`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '全局事务表' ROW_FORMAT = Dynamic;

        10.2在你项目里连接的数据库中创建一张表

CREATE TABLE `undo_log`  (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `branch_id` bigint(20) NOT NULL,
  `xid` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `context` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `rollback_info` longblob NOT NULL,
  `log_status` int(11) NOT NULL,
  `log_created` datetime(0) NOT NULL,
  `log_modified` datetime(0) NOT NULL,
  `ext` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE INDEX `ux_undo_log`(`xid`, `branch_id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

三、项目内配置文件： 1、yml配置

这是application-dev.yml 

seata.service.vgroupMapping.default_tx_group: default
seata.tx-service-group: default_tx_group 
必须是一个值

如果uat环境可以更改值--前提必须 seataServer.properties 文件内有这个值（8.3步骤后面红色说明！）
seata.service.vgroupMapping.uat_tx_group: default
seata.tx-service-group: uat_tx_group

#分布式事务 seata 配置
seata:
  service:
    vgroupMapping:
      default_tx_group: default  #default_tx_group分组名称必须要跟tx-service-group的值一样
  #指定事务分组 分组必须在 nacos seataServer.properties配置中有
  tx-service-group: default_tx_group
  config:
    type: nacos
    nacos:
      #nacos地址
      serverAddr: xx.xx.xx.xx:8848
      group: test
      namespace: 57b60655-ab37-48dd-9ab7-853c28aa8ab4
      userName: nacos
      password: nacos
      #读取配置文件的 dataId 重要！！！！
      dataId: "seataServer.properties"
  registry:
    type: nacos
    nacos:
      application: seata-server
      server-addr: xx.xx.xx.xx:8848
      group: test
      namespace: 57b60655-ab37-48dd-9ab7-853c28aa8ab4
      userName: nacos
      password: nacos

2、@GlobalTransactional 添加注解开启事务

@RestController
@RequestMapping("/locationTest")
public class LocationTest {

 
    @RequestMapping("/testEmail")
    @UnLogin
    @GlobalTransactional
    public int testEmail() {
        System.out.println(1);
        return 1;
    }

}

3、测试事务开启

 

4、docker内seata日志文件打印正常

查看日志命令:docker logs 2177b74a2b84(容器id-container Id) 

 5、数据库配置的全局事务id保存

作者说明：

当做笔记写的，如有不对的地方，欢迎批评指正

项目路径：alibaba-cloud-demo: 微服务demo