nacos2.1.0+seata1.5.2搭建分布式事务
1、nacos搭建部署省略，这个百度一大堆
2、seata 服务端搭建
2.1 解压文件夹，找到\conf\application.yml 配置，粘贴以下配置
server:
port: 7091
spring:
application:
name: seata-server
logging:
config: classpath:logback-spring.xml
file:
path: ./logs/seata
# extend:
# logstash-appender:
# destination: 127.0.0.1:4560
# kafka-appender:
# bootstrap-servers: 127.0.0.1:9092
# topic: logback_to_logstash
console:
user:
username: seata
password: seata
seata:
config:
# support: nacos 、 consul 、 apollo 、 zk 、 etcd3
type: nacos
nacos:
# nacos ip地址
server-addr: 127.0.0.1:8848
group: SEATA_GROUP
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a
username:
password:
##if use MSE Nacos with auth, mutex with username/password attribute
#access-key: ""
#secret-key: ""
# 读取nacos上的配置文件
data-id: seata-server.properties
registry:
# support: nacos 、 eureka 、 redis 、 zk 、 consul 、 etcd3 、 sofa
type: nacos
nacos:
application: seata-server
# nacos ip地址
server-addr: 127.0.0.1:8848
group: SEATA_GROUP
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a
cluster: default
username:
password:
##if use MSE Nacos with auth, mutex with username/password attribute
#access-key: ""
#secret-key: ""
security:
secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
tokenValidityInMilliseconds: 1800000
ignore:
urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login这个配置是设置nacos配置中心和注册中心，需要注意的是分组和命名空间，后面nacos配置中会用到
group: SEATA_GROUP #分组
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a #命名空间
2.2 建数据库和表，脚本在\script\server\db 里面
create database seata;
use seata;
-- -------------------------------- 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 = InnoDB
DEFAULT 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 = InnoDB
DEFAULT 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_and_branch_id` (`xid` , `branch_id`)
) ENGINE = InnoDB
DEFAULT 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 = InnoDB
DEFAULT 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);
show tables
3、nacos 上的配置
3.1新增命名空间，确定并记录命名空间ID ，我这边自动生成的是：
46d8963e-646d-4c28-b9aa-abd8ea1dae4a
3.2 新增seataServer.properties 配置
点击配置列表，选择seata 新增的命名空间，新增配置
配置内容如下：
store.mode=db
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.queryLimit=100
#store.lock.mode=db
#store.session.mode=db
#store.publicKey=
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.cj.jdbc.Driver
store.db.url=jdbc:mysql://192.168.1.86:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=qwe123
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
#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
#Metrics configuration, only for the server
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898
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根据需要，改下sql 连接信息即可
3.3 增加 seata-client-demo.yml 配置文件(ymal)备用，这个是客户端加载使用的
# seata配置
seata:
enabled: true
application-id: seata-cilent-deme
# Seata 事务组编号，此处需于 seata 相同
tx-service-group: default-tx-group
config:
type: nacos
nacos:
# nacos ip地址
server-addr: 127.0.0.1:8848
group: SEATA_GROUP
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a
data-id: seata-server.properties
registry:
type: nacos
nacos:
application: seata-server
# nacos ip地址
server-addr: 127.0.0.1:8848
group: SEATA_GROUP
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a
4、启动先启动nacos 再启动seata
5、seata 客户端整合搭建
5.1 pom.xml
parent_alibaba com.atguigu.springcloud 0.0.1-SNAPSHOT 4.0.0 spring-cloud-alibaba-seata-order-9001 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-actuator org.springframework.cloud spring-cloud-starter org.springframework.cloud spring-cloud-starter-loadbalancer org.springframework.cloud spring-cloud-starter-openfeign org.springframework.boot spring-boot-devtools runtime true org.springframework.boot spring-boot-configuration-processor true org.projectlombok lombok true org.springframework.boot spring-boot-starter-test test com.alibaba.cloud spring-cloud-starter-alibaba-nacos-discovery mysql mysql-connector-java ${mysql.version} runtime com.alibaba druid-spring-boot-starter org.mybatis.spring.boot mybatis-spring-boot-starter pom com.atguigu.springcloud comment 0.0.1-SNAPSHOT compile io.seata seata-spring-boot-starter 1.5.2 com.alibaba.cloud spring-cloud-starter-alibaba-seata io.seata seata-spring-boot-starter org.springframework.boot spring-boot-maven-plugin org.projectlombok lombok
5.2 application.yml
server:
port: 9001
# Spring
spring:
application:
# 应用名称
name: seata-order
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/mydb?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: qwe123
druid:
test-while-idle: false
# nacos 配置
cloud:
nacos:
# nacos 服务地址
server-addr: 127.0.0.1:8848
discovery:
# 注册组 要与 seata 相同
group: SEATA_GROUP
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a
config:
# 配置组 要与 seata 相同
group: SEATA_GROUP
namespace: 46d8963e-646d-4c28-b9aa-abd8ea1dae4a
config:
import:
- optional:nacos:seata-client-demo.yml
seata:
service:
vgroup-mapping:
default_tx_group: default
grouplist:
default: 127.0.0.1:8091
mybatis:
mapper-locations: classpath:mybatis/mapper/*.xml #sql映射文件位置
type-aliases-package: com.atguigu.springcloud.Beans # 开启类别名
configuration: # 相当于全局配置文件的配置项
map-underscore-to-camel-case: true # 开启驼峰命名
5.3 建数据库、建表
创建订单库、库存库、账号库，并创建相关表
分别为三个库 创建undo_log表
脚本在源码的\script\client\at\db
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;
5.4 编写具体的实现
@GlobalTransactional
public ComResult createOrder(TblOrder order){
System.out.println("order-->"+order);
//创建订单
orderService.create(order);
//减库存
TblStorage storage=new TblStorage(null,order.getCommodityCode(),order.getCount());
System.out.println("storage-->"+storage);
storageService.updateStorage(storage);
//支付
TblAccount account=new TblAccount(null,order.getUserId(),order.getMoney());
System.out.println("account-->"+account);
accountService.updateAccount(account);
return new ComResult使用很简单，在需要的方法上面加上@GlobalTransactional，即可
但是前期搭建有很多坑，搭建成功了，对配置还可能云里雾里