一、seata 官网：https://seata.io/zh-cn/blog/download.html 下载 seata0.9.0 为例 seata-server-0.9.0.zip 解压即可使用
二、修改两个配置
1、修改registry.conf 配置使用nacos为注册中心修改为如下
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
serverAddr = "42.194.158.212:8848"
namespace = "public"
cluster = "default"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "42.194.158.212:8848"
namespace = "public"
}
}
2、修改nacos-config.txt 如下红色的两行，一般名字取 服务名称
transport.type=TCP
transport.server=NIO
transport.heartbeat=true
transport.thread-factory.boss-thread-prefix=NettyBoss
transport.thread-factory.worker-thread-prefix=NettyServerNIOWorker
transport.thread-factory.server-executor-thread-prefix=NettyServerBizHandler
transport.thread-factory.share-boss-worker=false
transport.thread-factory.client-selector-thread-prefix=NettyClientSelector
transport.thread-factory.client-selector-thread-size=1
transport.thread-factory.client-worker-thread-prefix=NettyClientWorkerThread
transport.thread-factory.boss-thread-size=1
transport.thread-factory.worker-thread-size=8
transport.shutdown.wait=3
service.vgroup_mapping.order-service=default
service.vgroup_mapping.product-service=default
service.enableDegrade=false
service.disable=false
service.max.commit.retry.timeout=-1
service.max.rollback.retry.timeout=-1
client.async.commit.buffer.limit=10000
client.lock.retry.internal=10
client.lock.retry.times=30
client.lock.retry.policy.branch-rollback-on-conflict=true
client.table.meta.check.enable=true
client.report.retry.count=5
client.tm.commit.retry.count=1
client.tm.rollback.retry.count=1
store.mode=file
store.file.dir=file_store/data
store.file.max-branch-session-size=16384
store.file.max-global-session-size=512
store.file.file-write-buffer-cache-size=16384
store.file.flush-disk-mode=async
store.file.session.reload.read_size=100
store.db.datasource=dbcp
store.db.db-type=mysql
store.db.driver-class-name=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true
store.db.user=mysql
store.db.password=mysql
store.db.min-conn=1
store.db.max-conn=3
store.db.global.table=global_table
store.db.branch.table=branch_table
store.db.query-limit=100
store.db.lock-table=lock_table
recovery.committing-retry-period=1000
recovery.asyn-committing-retry-period=1000
recovery.rollbacking-retry-period=1000
recovery.timeout-retry-period=1000
transaction.undo.data.validation=true
transaction.undo.log.serialization=jackson
transaction.undo.log.save.days=7
transaction.undo.log.delete.period=86400000
transaction.undo.log.table=undo_log
transport.serialization=seata
transport.compressor=none
metrics.enabled=false
metrics.registry-type=compact
metrics.exporter-list=prometheus
metrics.exporter-prometheus-port=9898
support.spring.datasource.autoproxy=false
三、启动脚本命令加载到nacos中一些配置信息 ,红色为nacos服务器的IP地址
cd conf
nacos-config.sh 42.194.158.212
四、启动Seata服务器命令
cd bin
seata-server.bat -p 9000 -m file
五、在各个微服务所连的数据库中创建日志回滚表
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;
六、在各个微服务中添加seata依赖 这三个依赖都是需要的
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-seata</artifactId>
</dependency>
七、每个微服务都要添加数据源代理配置类
@Configuration
public class DataSourceProxyConfig {
@Bean
@ConfigurationProperties(prefix = "spring.datasource")
public DruidDataSource druidDataSource() {
return new DruidDataSource();
}
@Primary
@Bean
public DataSourceProxy dataSource(DruidDataSource druidDataSource){
return new DataSourceProxy(druidDataSource);
}
}
八、添加registry.conf 到 resources 每个微服务都需要加上(和seata服务器中的一样的)
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos"
nacos {
serverAddr = "42.194.158.212:8848"
namespace = "public"
cluster = "default"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "42.194.158.212:8848"
namespace = "public"
}
}
九、修改bootstrap.yml 每个微服务都需要配置 红色的名字 需要和 nacos-config.txt 配置里面的名字要对应上才可以
spring:
application:
name: shop-order
cloud:
nacos:
config:
server-addr: 42.194.158.212:8848 # 配置中心地址
namespace: public
group: SEATA_GROUP
alibaba:
seata:
tx-service-group: order-service
十、添全局加事务注解@GlobalTransactional，在发起事务的service方法上面加上这个注解即可
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