ShardingSphere 5.3 整合 Seata 分布式事务 | Spring Cloud 61
整合Seata分布式事务的核心步骤如下:
- 配置Seata服务器。
- 在ShardingSphere配置中启用Seata集成。
- 配置Seata分布式事务规则。
- 使用注解或配置方式声明分布式事务。
以下是Spring Cloud项目中整合Seata分布式事务的示例配置:
spring:
cloud:
alibaba:
seata:
tx-service-group: my_tx_group
service:
grouplist:
default: localhost:8091
shardingsphere:
datasource:
names: ds0,ds1
ds0:
type: com.zaxxer.hikari.HikariDataSource
driver-class-name: com.mysql.cj.jdbc.Driver
jdbc-url: jdbc:mysql://localhost:3306/ds0?useSSL=false&useUnicode=true&characterEncoding=UTF-8
username: root
password:
ds1:
type: com.zaxxer.hikari.HikariDataSource
driver-class-name: com.mysql.cj.jdbc.Driver
jdbc-url: jdbc:mysql://localhost:3306/ds1?useSSL=false&useUnicode=true&characterEncoding=UTF-8
username: root
password:
sharding:
tables:
t_order:
actual-data-nodes: ds$->{0..1}.t_order_$->{0..1}
table-strategy:
inline:
sharding-column: order_id
algorithm-expression: t_order_$->{order_id % 2}
key-generator-column-name: order_id
props:
sql:
show: true
seata:
enabled: true
tx-service-group: my_tx_group
service:
grouplist:
default: localhost:8091
在Java代码中,使用@GlobalTransactional
注解来声明分布式事务:
import io.seata.spring.annotation.GlobalTransactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
public class BusinessService {
@Autowired
private OrderService orderService;
@GlobalTransactional
public void purchase(String userId, String commodityCode, int orderCount) {
orderService.decrease(userId, commodityCode, orderCount);
accountService.debit(userId, orderCount);
}
}
确保所有涉及到分布式事务的数据库操作都被Spring事务管理,并且数据源已正确配置。以上配置和代码示例提供了整合Seata分布式事务的基本框架,实际应用中还需要根据具体业务场景进行调整。
评论已关闭