SpringCloud分布式事務(wù)Seata部署和集成過程
一、部署Seata的tc-server
1.下載
首先我們要下載seata-server包,地址在http://seata.io/zh-cn/blog/download.html

2.解壓
在非中文目錄解壓縮這個zip包,其目錄結(jié)構(gòu)如下:

3.修改配置
修改conf目錄下的registry.conf文件:

內(nèi)容如下:
# Copyright 1999-2019 Seata.io Group.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
server:
port: 7091
spring:
application:
name: seata-server
logging:
config: classpath:logback-spring.xml
file:
path: ${user.home}/logs/seata
extend:
logstash-appender:
destination: 127.0.0.1:4560
kafka-appender:
bootstrap-servers: 127.0.0.1:9092
topic: logback_to_logstash
console:
user:
username: seata
password: seata
seata:
config:
# support: nacos, consul, apollo, zk, etcd3
type: file
nacos:
server-addr: 124.222.106.122:8848
namespace: f4d6567e-1d68-476e-bcf5-9c08b34a605e
group: DEFAULT_GROUP
username: nacos
password: nacos
#context-path:
##if use MSE Nacos with auth, mutex with username/password attribute
#access-key:
#secret-key:
data-id: seataServer.properties
registry:
# support: nacos, eureka, redis, zk, consul, etcd3, sofa
type: file
nacos:
application: seata-server
server-addr: 124.222.106.122:8848
group: DEFAULT_GROUP
namespace: f4d6567e-1d68-476e-bcf5-9c08b34a605e
cluster: SH
username: nacos
password: nacos
#context-path:
##if use MSE Nacos with auth, mutex with username/password attribute
#access-key:
#secret-key:
store:
# support: file 、 db 、 redis
mode: file
# server:
# service-port: 8091 #If not configured, the default is '${server.port} + 1000'
security:
secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
tokenValidityInMilliseconds: 1800000
ignore:
urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login
4.在nacos添加配置
特別注意,為了讓tc服務(wù)的集群可以共享配置,我們選擇了nacos作為統(tǒng)一配置中心。因此服務(wù)端配置文件seataServer.properties文件需要在nacos中配好。
格式如下:

配置內(nèi)容如下:
# 數(shù)據(jù)存儲方式,db代表數(shù)據(jù)庫 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/seata?useUnicode=true&rewriteBatchedStatements=true 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 # 事務(wù)、日志等配置 server.recovery.committingRetryPeriod=1000 server.recovery.asynCommittingRetryPeriod=1000 server.recovery.rollbackingRetryPeriod=1000 server.recovery.timeoutRetryPeriod=1000 server.maxCommitRetryTimeout=-1 server.maxRollbackRetryTimeout=-1 server.rollbackRetryTimeoutUnlockEnable=false server.undo.logSaveDays=7 server.undo.logDeletePeriod=86400000 # 客戶端與服務(wù)端傳輸方式 transport.serialization=seata transport.compressor=none # 關(guān)閉metrics功能,提高性能 metrics.enabled=false metrics.registryType=compact metrics.exporterList=prometheus metrics.exporterPrometheusPort=9898
其中的數(shù)據(jù)庫地址、用戶名、密碼都需要修改成你自己的數(shù)據(jù)庫信息。
5.創(chuàng)建數(shù)據(jù)庫表
特別注意:tc服務(wù)在管理分布式事務(wù)時,需要記錄事務(wù)相關(guān)數(shù)據(jù)到數(shù)據(jù)庫中,你需要提前創(chuàng)建好這些表。
新建一個名為seata的數(shù)據(jù)庫,運(yùn)行sql文件,這些表主要記錄全局事務(wù)、分支事務(wù)、全局鎖信息:
SET NAMES utf8mb4; SET FOREIGN_KEY_CHECKS = 0; -- ---------------------------- -- 分支事務(wù)表 -- ---------------------------- DROP TABLE IF EXISTS `branch_table`; CREATE TABLE `branch_table` ( `branch_id` bigint(20) NOT NULL, `xid` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `transaction_id` bigint(20) NULL DEFAULT NULL, `resource_group_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `resource_id` varchar(256) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `branch_type` varchar(8) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `status` tinyint(4) NULL DEFAULT NULL, `client_id` varchar(64) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `application_data` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `gmt_create` datetime(6) NULL DEFAULT NULL, `gmt_modified` datetime(6) NULL DEFAULT NULL, PRIMARY KEY (`branch_id`) USING BTREE, INDEX `idx_xid`(`xid`) USING BTREE ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact; -- ---------------------------- -- 全局事務(wù)表 -- ---------------------------- DROP TABLE IF EXISTS `global_table`; CREATE TABLE `global_table` ( `xid` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL, `transaction_id` bigint(20) NULL DEFAULT NULL, `status` tinyint(4) NOT NULL, `application_id` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `transaction_service_group` varchar(32) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `transaction_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `timeout` int(11) NULL DEFAULT NULL, `begin_time` bigint(20) NULL DEFAULT NULL, `application_data` varchar(2000) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL, `gmt_create` datetime NULL DEFAULT NULL, `gmt_modified` datetime NULL DEFAULT NULL, PRIMARY KEY (`xid`) USING BTREE, INDEX `idx_gmt_modified_status`(`gmt_modified`, `status`) USING BTREE, INDEX `idx_transaction_id`(`transaction_id`) USING BTREE ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact; SET FOREIGN_KEY_CHECKS = 1;
6.啟動TC服務(wù)
進(jìn)入bin目錄,運(yùn)行其中的seata-server.bat即可:

啟動成功后,seata-server應(yīng)該已經(jīng)注冊到nacos注冊中心了。
打開瀏覽器,訪問nacos地址:http://localhost:8848,然后進(jìn)入服務(wù)列表頁面,可以看到seata-tc-server的信息:

二、微服務(wù)集成seata
1.引入依賴
首先,我們需要在微服務(wù)中引入seata依賴:
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-seata</artifactId>
<exclusions>
<!--版本較低,1.3.0,因此排除-->
<exclusion>
<artifactId>seata-spring-boot-starter</artifactId>
<groupId>io.seata</groupId>
</exclusion>
</exclusions>
</dependency>
<!--seata starter 采用1.4.2版本-->
<dependency>
<groupId>io.seata</groupId>
<artifactId>seata-spring-boot-starter</artifactId>
<version>${seata.version}</version>
</dependency>2.修改配置文件
需要修改application.yml文件,添加一些配置:
seata:
registry: # TC服務(wù)注冊中心的配置,微服務(wù)根據(jù)這些信息去注冊中心獲取tc服務(wù)地址
# 參考tc服務(wù)自己的registry.conf中的配置
type: nacos
nacos: # tc
server-addr: 127.0.0.1:8848
namespace: ""
group: DEFAULT_GROUP
application: seata-tc-server # tc服務(wù)在nacos中的服務(wù)名稱
cluster: SH
tx-service-group: seata-demo # 事務(wù)組,根據(jù)這個獲取tc服務(wù)的cluster名稱
service:
vgroup-mapping: # 事務(wù)組與TC服務(wù)cluster的映射關(guān)系
seata-demo: SH三、TC服務(wù)的高可用和異地容災(zāi)
1.模擬異地容災(zāi)的TC集群
計(jì)劃啟動兩臺seata的tc服務(wù)節(jié)點(diǎn):
| 節(jié)點(diǎn)名稱 | ip地址 | 端口號 | 集群名稱 |
|---|---|---|---|
| seata | 127.0.0.1 | 8091 | SH |
| seata2 | 127.0.0.1 | 8092 | HZ |
之前我們已經(jīng)啟動了一臺seata服務(wù),端口是8091,集群名為SH。
現(xiàn)在,將seata目錄復(fù)制一份,起名為seata2
修改seata2/conf/registry.conf內(nèi)容如下:
registry {
# tc服務(wù)的注冊中心類,這里選擇nacos,也可以是eureka、zookeeper等
type = "nacos"
nacos {
# seata tc 服務(wù)注冊到 nacos的服務(wù)名稱,可以自定義
application = "seata-tc-server"
serverAddr = "127.0.0.1:8848"
group = "DEFAULT_GROUP"
namespace = ""
cluster = "HZ"
username = "nacos"
password = "nacos"
}
}
config {
# 讀取tc服務(wù)端的配置文件的方式,這里是從nacos配置中心讀取,這樣如果tc是集群,可以共享配置
type = "nacos"
# 配置nacos地址等信息
nacos {
serverAddr = "127.0.0.1:8848"
namespace = ""
group = "SEATA_GROUP"
username = "nacos"
password = "nacos"
dataId = "seataServer.properties"
}
}進(jìn)入seata2/bin目錄,然后運(yùn)行命令:
seata-server.bat -p 8092
打開nacos控制臺,查看服務(wù)列表:

點(diǎn)進(jìn)詳情查看:

2.將事務(wù)組映射配置到nacos
接下來,我們需要將tx-service-group與cluster的映射關(guān)系都配置到nacos配置中心。
新建一個配置:

配置的內(nèi)容如下:
# 事務(wù)組映射關(guān)系 service.vgroupMapping.seata-demo=SH service.enableDegrade=false service.disableGlobalTransaction=false # 與TC服務(wù)的通信配置 transport.type=TCP transport.server=NIO transport.heartbeat=true transport.enableClientBatchSendRequest=false transport.threadFactory.bossThreadPrefix=NettyBoss transport.threadFactory.workerThreadPrefix=NettyServerNIOWorker transport.threadFactory.serverExecutorThreadPrefix=NettyServerBizHandler transport.threadFactory.shareBossWorker=false transport.threadFactory.clientSelectorThreadPrefix=NettyClientSelector transport.threadFactory.clientSelectorThreadSize=1 transport.threadFactory.clientWorkerThreadPrefix=NettyClientWorkerThread transport.threadFactory.bossThreadSize=1 transport.threadFactory.workerThreadSize=default transport.shutdown.wait=3 # RM配置 client.rm.asyncCommitBufferLimit=10000 client.rm.lock.retryInterval=10 client.rm.lock.retryTimes=30 client.rm.lock.retryPolicyBranchRollbackOnConflict=true client.rm.reportRetryCount=5 client.rm.tableMetaCheckEnable=false client.rm.tableMetaCheckerInterval=60000 client.rm.sqlParserType=druid client.rm.reportSuccessEnable=false client.rm.sagaBranchRegisterEnable=false # TM配置 client.tm.commitRetryCount=5 client.tm.rollbackRetryCount=5 client.tm.defaultGlobalTransactionTimeout=60000 client.tm.degradeCheck=false client.tm.degradeCheckAllowTimes=10 client.tm.degradeCheckPeriod=2000 # undo日志配置 client.undo.dataValidation=true client.undo.logSerialization=jackson client.undo.onlyCareUpdateColumns=true client.undo.logTable=undo_log client.undo.compress.enable=true client.undo.compress.type=zip client.undo.compress.threshold=64k client.log.exceptionRate=100
3.微服務(wù)讀取nacos配置
接下來,需要修改每一個微服務(wù)的application.yml文件,讓微服務(wù)讀取nacos中的client.properties文件:
seata:
config:
type: nacos
nacos:
server-addr: 127.0.0.1:8848
username: nacos
password: nacos
group: SEATA_GROUP
data-id: client.properties重啟微服務(wù),現(xiàn)在微服務(wù)到底是連接tc的SH集群,還是tc的HZ集群,都統(tǒng)一由nacos的client.properties來決定了。
到此這篇關(guān)于SpringCloud分布式事務(wù)Seata部署和集成過程的文章就介紹到這了,更多相關(guān)SpringCloud Seata部署和集成內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!
相關(guān)文章
詳解spring boot 以jar的方式啟動常用shell腳本
本篇文章主要介紹了詳解spring boot 以jar的方式啟動常用shell腳本,具有一定的參考價(jià)值,有興趣的可以了解一下2017-09-09
Java編程實(shí)現(xiàn)生成給定范圍內(nèi)不重復(fù)隨機(jī)數(shù)的方法小結(jié)
這篇文章主要介紹了Java編程實(shí)現(xiàn)生成給定范圍內(nèi)不重復(fù)隨機(jī)數(shù)的方法,結(jié)合實(shí)例形式總結(jié)分析了java基于數(shù)學(xué)運(yùn)算與判斷實(shí)現(xiàn)不重復(fù)隨機(jī)數(shù)的生成功能,需要的朋友可以參考下2017-07-07
java模擬TCP通信實(shí)現(xiàn)客戶端上傳文件到服務(wù)器端
這篇文章主要為大家詳細(xì)介紹了java模擬TCP通信實(shí)現(xiàn)客戶端上傳文件到服務(wù)器端,文中示例代碼介紹的非常詳細(xì),具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下2019-10-10
Struts2 ActionContext 中的數(shù)據(jù)詳解
這篇文章主要介紹了Struts2 ActionContext 中的數(shù)據(jù)詳解,需要的朋友可以參考下2016-07-07
IDEA整合SSM框架實(shí)現(xiàn)網(wǎng)頁上顯示數(shù)據(jù)
最近做了個小項(xiàng)目,該項(xiàng)目包在intellij idea中實(shí)現(xiàn)了ssm框架的整合以及實(shí)現(xiàn)訪問,具有一定的參考價(jià)值,感興趣的小伙伴們可以參考一下2021-05-05

