springcloud + mybatis + seate集成示例
<dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-alibaba-seata</artifactId> <version>2.1.1.RELEASE</version></dependency> 2.編寫(xiě)配置類(lèi)
@Configurationpublic class DataSourceConfig { @Bean @ConfigurationProperties(prefix = 'spring.datasource') public DataSource druidDataSource() {DruidDataSource druidDataSource = new DruidDataSource();return druidDataSource; } @Primary @Bean('dataSource') public DataSourceProxy dataSource(DataSource druidDataSource) {return new DataSourceProxy(druidDataSource); } @Bean public SqlSessionFactory sqlSessionFactory(DataSourceProxy dataSourceProxy) throws Exception {SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();factoryBean.setDataSource(dataSourceProxy);factoryBean.setMapperLocations(new PathMatchingResourcePatternResolver() .getResources('classpath*:/mapper/*.xml'));return factoryBean.getObject(); }} 3.修改啟動(dòng)類(lèi)
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class) 4.在需要開(kāi)啟分布式事物的方法上添加注解
@GlobalTransactional 二.服務(wù)端1.下載seata-server
[seata-server]{https://github.com/seata/seata/releases}
2.修改配置文件(本文以nacos為樣例,store記錄為mysql)修改conf下的registry.conf
registry { # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa type = 'nacos' nacos { serverAddr = 'localhost' namespace = 'piblic' cluster = 'default' }}config { # file、nacos 、apollo、zk、consul、etcd3 type = 'nacos' nacos { serverAddr = 'localhost' #namespace為空,否則后面會(huì)報(bào)找不到store.db.driver-class-name找不到 namespace = '' }}
修改registry下的type為nacos,配置nacos的serverAddr為你nacos服務(wù)的地址,不要帶http和端口號(hào)。它會(huì)默認(rèn)去連你的8858端口,如需修改端口,請(qǐng)修改nacos-config.sh文件中的端口拷貝registry.conf到每個(gè)使用seata服務(wù)的resources下修改conf下nacos-config.txt
store.mode=dbstore.db.datasource=dbcpstore.db.db-type=mysqlstore.db.driver-class-name=com.mysql.jdbc.Driverstore.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=truestore.db.user=mysqlstore.db.password=mysql
修改store.mode為db,修改對(duì)應(yīng)db配置文件為你自己的mysql。修改service.vgroup_mapping.my_test_tx_group=default屬性0.9.0.1版本后:my_test_tx_group修改為自己的服務(wù)名(spring.application.name)+'-seata-service-group'0.9.0.1版本前:my_test_tx_group修改為自己的服務(wù)名(spring.application.name)+'-fescar-service-group'可以spring-cloud-alibaba-seata項(xiàng)目下的GlobalTransactionAutoConfiguration累中看到
有多少個(gè)服務(wù)需要使用seata就要添加多少個(gè)ervice.vgroup_mapping執(zhí)行nacos-config.sh Nacos-Server-IP(?tex-Nacos-Server-IP( Nacos-Server-IP為你nacos服務(wù)的ip地址),在一步驟是把nacos-config.txt中的配置更新到nacos上,如果nacos-config.txt重新修改,就要重新執(zhí)行該命令。或者登陸到nacos的管理界面直接進(jìn)行修改。之后添加,刪除,修改服務(wù),在nacos配置上作對(duì)應(yīng)修改即可
3.創(chuàng)建表在上一步驟中store.db.url的database中執(zhí)行建表語(yǔ)句(conf下db_store.sql)在每一個(gè)業(yè)務(wù)庫(kù)中執(zhí)行建表語(yǔ)句(conf下db_undo_log.sql)
本文鏈接:https://gudepeng.github.io/note/2019/11/29/seate/demo樣例:https://github.com/gudepeng/demoproject/tree/master/seata-servicea
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