25 -SpringBoot學習（5）- 數據庫訪問(3)-多事務管理

1 springboot中的多事務管理

• 使用springboot+jta+atomikos 分佈式事物管理解決方案
• 添加依賴

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jta-atomikos</artifactId>
</dependency>

1.1 修改數據庫連接配置數據

# Mysql 1
mysql.datasource.test1.url = jdbc:mysql://localhost:3306/springboot_test?characterEncoding=utf8&useSSL=false
mysql.datasource.test1.username = root
mysql.datasource.test1.password = root

mysql.datasource.test1.minPoolSize = 3
mysql.datasource.test1.maxPoolSize = 25
mysql.datasource.test1.maxLifetime = 20000
mysql.datasource.test1.borrowConnectionTimeout = 30
mysql.datasource.test1.loginTimeout = 30
mysql.datasource.test1.maintenanceInterval = 60
mysql.datasource.test1.maxIdleTime = 60

mysql.datasource.test1.testQuery = select 1
# Mysql 2
mysql.datasource.test2.url =jdbc:mysql://localhost:3306/springboot_test2?characterEncoding=utf8&useSSL=false
mysql.datasource.test2.username =root
mysql.datasource.test2.password =root
mysql.datasource.test2.minPoolSize = 3
mysql.datasource.test2.maxPoolSize = 25
mysql.datasource.test2.maxLifetime = 20000
mysql.datasource.test2.borrowConnectionTimeout = 30
mysql.datasource.test2.loginTimeout = 30
mysql.datasource.test2.maintenanceInterval = 60
mysql.datasource.test2.maxIdleTime = 60
mysql.datasource.test2.testQuery = select 1

1.2 添加2個配置模型

1.3 重新設置兩個數據源配置

@Configuration//註解到springboot容器中
@MapperScan(basePackages="com.tzb.springboot.test1.mapper",sqlSessionFactoryRef="test1SqlSessionFactory")
public class DataSource01 {

    // 配置數據源
    @Primary
    @Bean(name = "test1DataSource")
    public DataSource testDataSource(DBConfig1 testConfig) throws SQLException {
        MysqlXADataSource mysqlXaDataSource = new MysqlXADataSource();
        mysqlXaDataSource.setUrl(testConfig.getUrl());
        mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);
        mysqlXaDataSource.setPassword(testConfig.getPassword());
        mysqlXaDataSource.setUser(testConfig.getUsername());
        mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);

        AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();
        xaDataSource.setXaDataSource(mysqlXaDataSource);
        xaDataSource.setUniqueResourceName("test1DataSource");

        xaDataSource.setMinPoolSize(testConfig.getMinPoolSize());
        xaDataSource.setMaxPoolSize(testConfig.getMaxPoolSize());
        xaDataSource.setMaxLifetime(testConfig.getMaxLifetime());
        xaDataSource.setBorrowConnectionTimeout(testConfig.getBorrowConnectionTimeout());
        xaDataSource.setLoginTimeout(testConfig.getLoginTimeout());
        xaDataSource.setMaintenanceInterval(testConfig.getMaintenanceInterval());
        xaDataSource.setMaxIdleTime(testConfig.getMaxIdleTime());
        xaDataSource.setTestQuery(testConfig.getTestQuery());
        return xaDataSource;
    }

    @Bean(name = "test1SqlSessionFactory")
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("test1DataSource") DataSource dataSource)
            throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        return bean.getObject();
    }

    @Bean(name = "test1SqlSessionTemplate")
    public SqlSessionTemplate testSqlSessionTemplate(
            @Qualifier("test1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}

@Configuration//註解到springboot容器中
@MapperScan(basePackages="com.tzb.springboot.test2.mapper",sqlSessionFactoryRef="test2SqlSessionFactory")
public class DataSource02 {

    // 配置數據源
    @Bean(name = "test2DataSource")
    public DataSource testDataSource(DBConfig2 testConfig) throws SQLException {
        MysqlXADataSource mysqlXaDataSource = new MysqlXADataSource();
        mysqlXaDataSource.setUrl(testConfig.getUrl());
        mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);
        mysqlXaDataSource.setPassword(testConfig.getPassword());
        mysqlXaDataSource.setUser(testConfig.getUsername());
        mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);

        AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();
        xaDataSource.setXaDataSource(mysqlXaDataSource);
        xaDataSource.setUniqueResourceName("test2DataSource");

        xaDataSource.setMinPoolSize(testConfig.getMinPoolSize());
        xaDataSource.setMaxPoolSize(testConfig.getMaxPoolSize());
        xaDataSource.setMaxLifetime(testConfig.getMaxLifetime());
        xaDataSource.setBorrowConnectionTimeout(testConfig.getBorrowConnectionTimeout());
        xaDataSource.setLoginTimeout(testConfig.getLoginTimeout());
        xaDataSource.setMaintenanceInterval(testConfig.getMaintenanceInterval());
        xaDataSource.setMaxIdleTime(testConfig.getMaxIdleTime());
        xaDataSource.setTestQuery(testConfig.getTestQuery());
        return xaDataSource;
    }

    @Bean(name = "test2SqlSessionFactory")
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("test2DataSource") DataSource dataSource)
            throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        return bean.getObject();
    }

    @Bean(name = "test2SqlSessionTemplate")
    public SqlSessionTemplate testSqlSessionTemplate(
            @Qualifier("test2SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}

1.4 測試

@EnableAutoConfiguration
@EnableConfigurationProperties(value = {DBConfig1.class, DBConfig2.class})
/*@ComponentScan(basePackages = {"com.tzb.springboot.datasource",
        "com.tzb.springboot.test1.service", "com.tzb.springboot.test2.service",
        "com.tzb.springboot.web.controller",
        "com.tzb.springboot.dbconfig"})*/
@ComponentScan(basePackages = "com.tzb.springboot")
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}