共計 9624 個字符,預計需要花費 25 分鐘才能閱讀完成。
這篇文章給大家分享的是有關分布式事務 seata1.3.0 如何整合 nacos 的內容。丸趣 TV 小編覺得挺實用的,因此分享給大家做個參考,一起跟隨丸趣 TV 小編過來看看吧。
分布式事務 seata-demo 版本介紹
JDK:1.8
spring-cloud.version:Hoxton.SR8
alibaba.version:2.2.1.RELEASE
seata.version:1.3.0
nacos: 1.3.1
整合步驟
下載 nacos 我下載的 nacos-server-1.3.2.zip
seata 我下載的是 seata-server-1.3.0.zip
創建數據庫 server 數據庫腳本 同時每一個參與事務的數據庫需要添加一張表 下載地址
上傳 seata 配置到 nacos
下載 nacos-config.sh 文件, 放到解壓文件 conf 文件夾下
修改 conf 目錄下 file.conf 配置文件,主要是修改自定義事務組名稱,事務日志存儲模式為 db,并修改數據庫連接信息
service {
#vgroup- rgroup
vgroup_mapping.tx-service-group = default # 修改事務組名稱為:tx-service-group,和客戶端自定義的名稱對應
#only support single node
default.grouplist = 127.0.0.1:8091
#degrade current not support
enableDegrade = false
#disable
disable = false
#unit ms,s,m,h,d represents milliseconds, seconds, minutes, hours, days, default permanent
max.commit.retry.timeout = -1
max.rollback.retry.timeout = -1
## transaction log store, only used in seata-server
store {
## store mode: file、db、redis
mode = db
## database store property
db {## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.
datasource = druid
## mysql/oracle/postgresql/h3/oceanbase etc.
dbType = mysql
driverClassName = com.mysql.jdbc.Driver
url = jdbc:mysql://192.168.240.129:3306/seat_server
user = root
password = Root_123456
minConn = 5
maxConn = 30
globalTable = global_table
branchTable = branch_table
lockTable = lock_table
queryLimit = 100
maxWait = 5000
}
}
修改 conf 目錄下 registry.conf 配置,指明注冊中心為 nacos,及修改 nacos 連接信息。
registry {
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = nacos
nacos {
application = seata-server
serverAddr = 127.0.0.1:8848
group = default
namespace =
cluster = default
username = nacos
password = nacos
}
config {
# file、nacos 、apollo、zk、consul、etcd3 SEATA_GROUP
type = nacos
nacos {
serverAddr = 127.0.0.1:8848
namespace = default
group =
username = nacos
password = nacos
}
}
上傳配置到 nacos: 在 conf 目錄下打開 git bash here 執行 nacos-config.sh 輸入命令 sh nacos-config.sh -h 127.0.0.1
創建 client 服務
創建 seat_order 庫,用來存儲訂單信息
創建 seat_storage 庫,用來存儲庫存信息
創建 seat_account,用來存儲賬戶信息
三個庫添加日志回滾表
完整數據庫示意圖
5. 創建 seata-order-service(訂單服務),seata-storage-service(庫存服務),seata-account-service(賬戶服務)
配置內容大同小異以 order 服務的配置為例, 修改 bootstrap.yml 文件
server:
port: 8180
spring:
application:
name: seata-order-service
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848
username: nacos
password: nacos
config:
server-addr: 127.0.0.1:8848
username: nacos
password: nacos
mybatis:
mapperLocations: classpath:mapper/*.xml
修改 application.yml 文件
seata:
enabled: true
application-id: seata-order-service
tx-service-group: my_test_tx_group #tx-service-group 需要與 conf 目錄下 file.conf 文件下名稱一致
config:
type: nacos
nacos:
namespace:
serverAddr: 127.0.0.1:8848
group: SEATA_GROUP
username: nacos
password: nacos
registry:
type: nacos
nacos:
application: seata-server
server-addr: 127.0.0.1:8848
group: SEATA_GROUP
namespace:
username: nacos
password: nacos
spring:
datasource:
#driver-class-name: com.mysql.jdbc.Driver
username: root
password: Root_123456
url: jdbc:mysql://192.168.240.129:3306/seat_order?characterEncoding=utf-8 useSSL=false
添加主方法
@RestController
@RequestMapping(value = /order)
public class OrderController {
@Autowired
private OrderService orderService;
/**
* 創建訂單
*/
@GetMapping(/create)
@GlobalTransactional
public CommonResult create(Order order) { orderService.create(order);
return new CommonResult(訂單創建成功! , 200);
}
}
啟動 nacos,seata,seata-order-service,seata-storage-service,seata-account-service
2020-09-21 16:17:08.307 INFO 29768 --- [ main] i.s.s.a.GlobalTransactionScanner : Initializing Global Transaction Clients ...
2020-09-21 16:17:08.394 INFO 29768 --- [ main] i.s.core.rpc.netty.NettyClientBootstrap : NettyClientBootstrap has started
2020-09-21 16:17:08.394 INFO 29768 --- [ main] i.s.s.a.GlobalTransactionScanner : Transaction Manager Client is initialized. applicationId[seata-order-service] txServiceGroup[my_test_tx_group]
2020-09-21 16:17:08.403 INFO 29768 --- [ main] io.seata.rm.datasource.AsyncWorker : Async Commit Buffer Limit: 10000
2020-09-21 16:17:08.403 INFO 29768 --- [ main] i.s.rm.datasource.xa.ResourceManagerXA : ResourceManagerXA init ...
2020-09-21 16:17:08.408 INFO 29768 --- [ main] i.s.core.rpc.netty.NettyClientBootstrap : NettyClientBootstrap has started
2020-09-21 16:17:08.408 INFO 29768 --- [ main] i.s.s.a.GlobalTransactionScanner : Resource Manager is initialized. applicationId[seata-order-service] txServiceGroup[my_test_tx_group]
2020-09-21 16:17:08.408 INFO 29768 --- [ main] i.s.s.a.GlobalTransactionScanner : Global Transaction Clients are initialized.
3. 測試分布式事務
庫的初始狀態
訪問 http://localhost:8180/order/create?userId=1 productId=1 count=10 money=100
2020-09-21 16:27:22.497 INFO 29768 --- [nio-8180-exec-9] i.seata.tm.api.DefaultGlobalTransaction : Begin new global transaction [192.168.240.1:8091:51345170083352576]
2020-09-21 16:27:22.497 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- 下單開始
2020-09-21 16:27:22.508 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減庫存開始
2020-09-21 16:27:22.530 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減庫存結束
2020-09-21 16:27:22.530 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減余額開始
2020-09-21 16:27:22.543 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減余額結束
2020-09-21 16:27:22.543 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中修改訂單狀態開始
2020-09-21 16:27:22.550 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中修改訂單狀態結束
2020-09-21 16:27:22.550 INFO 29768 --- [nio-8180-exec-9] c.m.cloud.service.impl.OrderServiceImpl : ------- 下單結束
2020-09-21 16:27:22.552 INFO 29768 --- [nio-8180-exec-9] i.seata.tm.api.DefaultGlobalTransaction : [192.168.240.1:8091:51345170083352576] commit status: Committed
2020-09-21 16:27:22.560 INFO 29768 --- [h_RMROLE_1_6_16] i.s.c.r.p.c.RmBranchCommitProcessor : rm client handle branch commit process:xid=192.168.240.1:8091:51345170083352576,branchId=51345170112712704,branchType=AT,resourceId=jdbc:mysql://192.168.240.129:3306/seat_order,applicationData=null
2020-09-21 16:27:22.560 INFO 29768 --- [h_RMROLE_1_6_16] io.seata.rm.AbstractRMHandler : Branch committing: 192.168.240.1:8091:51345170083352576 51345170112712704 jdbc:mysql://192.168.240.129:3306/seat_order null
2020-09-21 16:27:22.560 INFO 29768 --- [h_RMROLE_1_6_16] io.seata.rm.AbstractRMHandler : Branch commit result: PhaseTwo_Committed
2020-09-21 16:27:22.622 INFO 29768 --- [h_RMROLE_1_7_16] i.s.c.r.p.c.RmBranchCommitProcessor : rm client handle branch commit process:xid=192.168.240.1:8091:51345170083352576,branchId=51345170297262080,branchType=AT,resourceId=jdbc:mysql://192.168.240.129:3306/seat_order,applicationData=null
2020-09-21 16:27:22.622 INFO 29768 --- [h_RMROLE_1_7_16] io.seata.rm.AbstractRMHandler : Branch committing: 192.168.240.1:8091:51345170083352576 51345170297262080 jdbc:mysql://192.168.240.129:3306/seat_order null
2020-09-21 16:27:22.622 INFO 29768 --- [h_RMROLE_1_7_16] io.seata.rm.AbstractRMHandler : Branch commit result: PhaseTwo_Committed
數據庫狀態
模擬異常
/**
* 扣減賬戶余額
*/
@Override
public void decrease(Long userId, BigDecimal money) {
LOGGER.info( ------- account-service 中扣減賬戶余額開始
// 模擬超時異常,全局事務回滾
try { Thread.sleep(30*1000);
} catch (InterruptedException e) { e.printStackTrace();
}
accountDao.decrease(userId,money);
LOGGER.info( ------- account-service 中扣減賬戶余額結束
}
會發現數據庫沒有變化,并且控制臺打印日志如下
2020-09-21 16:29:53.921 INFO 29768 --- [nio-8180-exec-3] i.seata.tm.api.DefaultGlobalTransaction : Begin new global transaction [192.168.240.1:8091:51345805197447168]
2020-09-21 16:29:53.921 INFO 29768 --- [nio-8180-exec-3] c.m.cloud.service.impl.OrderServiceImpl : ------- 下單開始
2020-09-21 16:29:53.931 INFO 29768 --- [nio-8180-exec-3] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減庫存開始
2020-09-21 16:29:53.957 INFO 29768 --- [nio-8180-exec-3] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減庫存結束
2020-09-21 16:29:53.957 INFO 29768 --- [nio-8180-exec-3] c.m.cloud.service.impl.OrderServiceImpl : ------- order-service 中扣減余額開始
2020-09-21 16:29:56.099 INFO 29768 --- [h_RMROLE_1_8_16] i.s.c.r.p.c.RmBranchRollbackProcessor : rm handle branch rollback process:xid=192.168.240.1:8091:51345805197447168,branchId=51345805231001600,branchType=AT,resourceId=jdbc:mysql://192.168.240.129:3306/seat_order,applicationData=null
2020-09-21 16:29:56.100 INFO 29768 --- [h_RMROLE_1_8_16] io.seata.rm.AbstractRMHandler : Branch Rollbacking: 192.168.240.1:8091:51345805197447168 51345805231001600 jdbc:mysql://192.168.240.129:3306/seat_order
2020-09-21 16:29:56.142 INFO 29768 --- [h_RMROLE_1_8_16] i.s.r.d.undo.AbstractUndoLogManager : xid 192.168.240.1:8091:51345805197447168 branch 51345805231001600, undo_log deleted with GlobalFinished
2020-09-21 16:29:56.143 INFO 29768 --- [h_RMROLE_1_8_16] io.seata.rm.AbstractRMHandler : Branch Rollbacked result: PhaseTwo_Rollbacked
2020-09-21 16:29:56.147 INFO 29768 --- [nio-8180-exec-3] i.seata.tm.api.DefaultGlobalTransaction : [192.168.240.1:8091:51345805197447168] rollback status: Rollbacked
2020-09-21 16:29:56.167 ERROR 29768 --- [nio-8180-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is feign.RetryableException: Read timed out executing GET http://seata-account-service/account/decrease?userId=1 money=100] with root cause
java.net.SocketTimeoutException: Read timed out
...
感謝各位的閱讀!關于“分布式事務 seata1.3.0 如何整合 nacos”這篇文章就分享到這里了,希望以上內容可以對大家有一定的幫助,讓大家可以學到更多知識,如果覺得文章不錯,可以把它分享出去讓更多的人看到吧!