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Seata多數(shù)據(jù)源代理通過配置數(shù)據(jù)源路由規(guī)則,實(shí)現(xiàn)分布式事務(wù)的提交和回滾,確保數(shù)據(jù)的一致性。
Seata多數(shù)據(jù)源代理是指在分布式系統(tǒng)中,通過Seata實(shí)現(xiàn)多個(gè)數(shù)據(jù)源之間的事務(wù)管理,下面將詳細(xì)介紹Seata多數(shù)據(jù)源代理的步驟和配置方法。

1、引入Seata依賴
在項(xiàng)目的pom.xml文件中添加Seata的依賴:
io.seata seataall 最新版本號(hào)
2、配置數(shù)據(jù)源
在Spring配置文件中配置多個(gè)數(shù)據(jù)源,例如application.yml:
spring:
datasource:
primary:
url: jdbc:mysql://localhost:3306/db1?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
username: root
password: 123456
driverclassname: com.mysql.cj.jdbc.Driver
secondary:
url: jdbc:mysql://localhost:3306/db2?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
username: root
password: 123456
driverclassname: com.mysql.cj.jdbc.Driver
3、配置Seata事務(wù)管理器
在Spring配置文件中配置Seata事務(wù)管理器,例如application.yml:
spring:
cloud:
alibaba:
seata:
txservicegroup: my_test_tx_group
txservicegroup是事務(wù)組名,可以根據(jù)實(shí)際情況進(jìn)行修改。
4、創(chuàng)建Seata事務(wù)注解類
創(chuàng)建一個(gè)Seata事務(wù)注解類,用于標(biāo)記需要進(jìn)行事務(wù)管理的方法,
import io.seata.annotation.GlobalTransactional;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
public class MyService {
@GlobalTransactional // 開啟全局事務(wù),使用Seata進(jìn)行事務(wù)管理
@Transactional // 聲明當(dāng)前方法是本地事務(wù),使用Spring進(jìn)行事務(wù)管理
public void doSomething() {
// 業(yè)務(wù)邏輯代碼...
}
}
在需要使用Seata進(jìn)行事務(wù)管理的方法上添加@GlobalTransactional注解,同時(shí)也可以添加@Transactional注解來聲明本地事務(wù)。
5、配置Seata服務(wù)器端信息
在Seata的配置文件中配置服務(wù)器端信息,例如seataserver.conf:
seata服務(wù)器地址和端口號(hào),根據(jù)實(shí)際情況進(jìn)行修改 server.port=8091 數(shù)據(jù)庫連接信息,根據(jù)實(shí)際情況進(jìn)行修改 spring.datasource.druid.url=jdbc:mysql://localhost:3306/seata?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&zeroDateTimeCreationDatetimeModeInsensitiveEqualsFilterEnabledZeroDateTimeBehaviorAllowNonExistingValueAllowSubsecondPrecisionAllowLegacyDatetimeStringRepresentationUseAffectedRowsOptimizerDisableNamedParameterJdbcTemplateCacheStrictSqlSessionFactoryLeakExceptionHandlerDisableAutoCommitFalseMaxPoolSize100MinPoolSize8ConnectionTimeout3000QueryTimeout60000TestOnBorrowReturnConnectionOnCheckoutCloseConnectionAfterUsageStatementNotClosedByCompletionResultSetHoldabilityDefaultFetchSize0MaxFetchSizeIntegerTypeHandlerRegistrySupportsGetGeneratedKeysBatchUpdateSizeIntegerBatchSizeForSelectMultiplierSingleSelectLoadBalancerRoundRobinRandomWeightLocalTransactionScopeStatelessSupportsTransactionsNestedPropagationRequiredNewFixedThreadPoolSize100不啟用查詢緩存select * from tableName where id = 'xxx'; # 查詢語句,根據(jù)實(shí)際情況進(jìn)行修改
文章標(biāo)題:Seata多數(shù)據(jù)源如何代理?
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