Spring cloud alibaba -Seata

<!--nacos服务注册发现--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!--添加openfeign--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency><!--添加seata--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-seata</artifactId></dependency>

DROPTABLEIFEXISTS`undo_log`;
CREATETABLE`undo_log`  (
`id`int(0) NOTNULLAUTO_INCREMENT,
`branch_id`bigint(0) NOTNULL,
`xid`varchar(100) CHARACTERSETutf8mb4COLLATEutf8mb4_0900_ai_ciNOTNULL,
`context`varchar(128) CHARACTERSETutf8mb4COLLATEutf8mb4_0900_ai_ciNOTNULL,
`rollback_info`longblobNOTNULL,
`log_status`int(0) NOTNULL,
`log_created`datetime(0) NULLDEFAULTNULL,
`log_modified`datetime(0) NULLDEFAULTNULL,
PRIMARYKEY (`id`) USINGBTREE,
UNIQUEINDEX`ux_undo_log`(`id`, `branch_id`) USINGBTREE) ENGINE=InnoDBCHARACTERSET=utf8mb4COLLATE=utf8mb4_0900_ai_ciROW_FORMAT=Dynamic;
配置application.ymlserver:
port: 30001spring:
application:
name: order-seatadatasource:
username: rootpassword: rooturl: jdbc:mysql://localhost:3306/test?characterEncoding=utf-8&serverTimezone=UTCdriverClassName: com.mysql.cj.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSourcejpa:
show-sql: truehibernate:
ddl-auto: updateproperties:
hibernate:
format_sql: trueenable_lazy_load_no_trans: trueopen-in-view: falsecloud:
alibaba:
seata:
tx-service-group: guangzhou#配置事务分组nacos:
discovery:
serverAddr: 127.0.0.1:8848username: nacospassword: nacosseata:
registry:
#配置seata的注册中心，告诉seataclient怎么去访问seataserver(TC)
type: nacosnacos:
serverAddr: 127.0.0.1:8848#SEATAServer所在acos服务地址application: seata-server#SEATAServer所在服务名seata-server如果没有修改可以不配username: nacospassword: nacosgroup: SEATA_GROUP#SEATAServer所在的组默认就是SEATA_GROUP如果没有修改可以不配config:
#配置seata的配置中心type: nacosnacos:
serverAddr: 127.0.0.1:8848username: nacospassword: nacosgroup: SEATA_GROUPserver:
port: 30002spring:
application:
name: stock-seatadatasource:
username: rootpassword: rooturl: jdbc:mysql://localhost:3306/test?characterEncoding=utf-8&serverTimezone=UTCdriverClassName: com.mysql.cj.jdbc.Drivertype: com.alibaba.druid.pool.DruidDataSourcejpa:
show-sql: truehibernate:
ddl-auto: updateproperties:
hibernate:
format_sql: trueenable_lazy_load_no_trans: trueopen-in-view: falsecloud:
nacos:
discovery:
serverAddr: 127.0.0.1:8848username: nacospassword: nacosalibaba:
seata:
tx-service-group: guangzhou#这里必须和config.txt里面的内容保持一致seata:
registry:
#配置seata的注册中心，告诉seataclient怎么去访问seataserver(TC)
type: nacosnacos:
serverAddr: 127.0.0.1:8848#SEATAServer所在nacos服务地址application: seata-server#SEATAServer所在服务名seata-server如果没有修改可以不配username: nacospassword: nacosgroup: SEATA_GROUP#SEATAServer所在的组默认就是SEATA_GROUP如果没有修改可以不配config:
#配置seata的配置中心type: nacosnacos:
serverAddr: 127.0.0.1:8848username: nacospassword: nacosgroup: SEATA_GROUP

/*** @ClassName OrderInfo* @Description* @Author Jackson* @Date 2023/5/4* @Version 1.0**/@Data@AllArgsConstructor@NoArgsConstructor@Entity@Table(name="order_info")
publicclassOrderInfoimplementsSerializable {
@Id@GeneratedValue(strategy=GenerationType.IDENTITY)
@ColumnprivateIntegerorderId;
@ColumnprivateStringgoodId;
@ColumnprivateLonggoodNum;
@ColumnprivateStringremark;
@ColumnprivateStringcustomerId;
}
CREATETABLE`stock_info` (
`stock_id`intNOTNULL,
`count_num`bigintDEFAULTNULL,
`good_id`varchar(12) CHARACTERSETutf8mb4COLLATEutf8mb4_0900_ai_ciDEFAULTNULL,
PRIMARYKEY (`stock_id`)
) ENGINE=MyISAMDEFAULTCHARSET=utf8mb4COLLATE=utf8mb4_0900_ai_ci;
模拟库存不足的情况下抛异常//OrderServiceImpl@GlobalTransactional@OverridepublicStringsaveOrder(OrderInfoorderInfo) {
orderInfoDao.save(orderInfo);
Stringresult=stockService.reduct(orderInfo.getGoodId(), orderInfo.getGoodNum());
if ("库存不足".equals(result)) {
thrownewBizException("库存不足");
     }
returnresult;
 }
//OrderController//模拟请求@GetMapping("save")
publicStringsaveOrder() {
ThreadLocalRandomthreadLocalRandom=ThreadLocalRandom.current();
longgoodNum=threadLocalRandom.nextLong(1,10);
OrderInfoorderInfo=newOrderInfo(0, "shoes001", goodNum, "alibaba", "9527");
try {
orderService.saveOrder(orderInfo);
    } catch (Exceptione) {
return"库存不足";
    }
return"success";
}