项目引入pom文件
<!-- SpringCloud Seata 组件-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-seata</artifactId>
<version>${alibaba.seata}</version>
<exclusions>
<exclusion>
<groupId>io.seata</groupId>
<artifactId>seata-all</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.seata</groupId>
<artifactId>seata-spring-boot-starter</artifactId>
<version>${seata}</version>
</dependency>yml配置文件
#====================================Seata Config===============================================
seata:
enabled: true
tx-service-group: my_test_tx_group # 1 事务群组（可以每个应用独立取名，也可以使用相同的名字）这个需要跟nacos的配置名字保持一致
registry:
type: nacos
nacos:
server-addr: ${nacos-addr} #nacos地址 localhost:8848
application: service-seata
namespace: seata #seata在nacos中配置的命名空间
group: SEATA_GROUP
cluster: default
username: nacos
password: nacos
config:
type: nacos
nacos:
server-addr: ${nacos-addr} #nacos地址 localhost:8848
namespace: seata #seata在nacos中配置的命名空间
group: SEATA_GROUP
username: nacos
password: nacos
Seata文件配置
修改file.conf
## transaction log store, only used in seata-server
store {
## store mode: file、db、redis
mode = "db" ##将file改为db
## 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.jdbc.Driver"
url = "jdbc:mysql://127.0.0.1:3306/db_seata" ##修改为自己的数据库连接
user = "root"
password = "123456"
minConn = 5
maxConn = 30
globalTable = "global_table"
branchTable = "branch_table"
lockTable = "lock_table"
queryLimit = 100
maxWait = 5000
}
## redis store property
redis {
host = "127.0.0.1"
port = "6379"
password = ""
database = "0"
minConn = 1
maxConn = 10
queryLimit = 100
}
}修改regitry.conf
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "nacos" ##我们使用的是nacos,因此将type修改为nacos
nacos {
application = "service-seata" #application填写注册的服务名
serverAddr = "127.0.0.1:8848" #填写nacos注册中心地址
group = "SEATA_GROUP" #group是服务注册的分组。可不填，注：是服务分组，不是配置分组
namespace = "seata" #填写服务注册时的命名空间，可不填，不填默认的时public命名空间
cluster = "default" #cluster不用改
username = "nacos"
password = "nacos"
}
file {
name = "file.conf"
}
}
config {
# file、nacos 、apollo、zk、consul、etcd3
type = "nacos"
nacos {
serverAddr = "127.0.0.1:8848"
namespace = "seata"
group = "SEATA_GROUP"
username = "nacos"
password = "nacos"
}
file {
name = "file.conf"
}
}将配置导入nacos
本来我们是需要把file.conf和registry.conf放入我们的项目中的，这里直接导入到nacos。需要什么配置直接从nacos中获取。不需要放在项目中了
修改conf.txt
在conf目录下
service.vgroupMapping.my_test_tx_group=default #需要跟配置文件的保持一致
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/db_seata?useUnicode=true #自己的数据库连接地址
store.db.user=root
store.db.password=123456
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创建命名空间
执行导入
打开git bash。
输入以下命令：
sh nacos-config.sh -h localhost -p 8848 -g SEATA_GROUP -t seata -u nacos -w nacos
注：命令解析：-h -p 指定nacos的端口地址；-g 指定配置的分组，注意，是配置的分组；-t 指定命名空间id； -u -w指定nacos的用户名和密码，同样，这里开启了nacos注册和配置认证的才需要指定。
导入成功之后如下图：
数据库配置
db_seata数据库中导入数据表
branch_table
global_table
lock_table
业务数据库中导入数据表
undo_log
启动Seata
配置成功
记得主接口增加注解 @GlobalTransactional
远程调用服务增加注解 @Transactional
