Spring Boot中的多事务管理

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一、多数据源问题

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最后一个可以插入一条数据，原因是Transactoinal的事务只针对userMapper有效，因为之前的事务只给test1配置了，而test2并没有配置事务。

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二、Spring Boot中的多事务管理

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使用springboot+jta+atomikos 分布式事物管理解决方案

1、添加jta事务依赖

	org.springframework.boot
	spring-boot-starter-jta-atomikos

2、修改数据库连接配置数据

# Mysql 1
mysql.datasource.test1.url = jdbc:mysql://localhost:3306/test1?useUnicode=true&characterEncoding=utf-8
mysql.datasource.test1.username = root
mysql.datasource.test1.password = 123456

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/test2?useUnicode=true&characterEncoding=utf-8
mysql.datasource.test2.username =root
mysql.datasource.test2.password =123456
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

3、添加配置模型
模型放在com.gyf.dbconfig包，并添加getter、setter方法。

@ConfigurationProperties("mysql.datasource.test1")
public class DBConfig1 {
	private String url;
	private String username;
	private String password;
	private int minPoolSize;
	private int maxPoolSize;
	private int maxLifetime;
	private int borrowConnectionTimeout;
	private int loginTimeout;
	private int maintenanceInterval;
	private int maxIdleTime;
	private String testQuery;
}


@ConfigurationProperties("mysql.datasource.test2")
public class DBConfig2 {
	private String url;
	private String username;
	private String password;
	private int minPoolSize;
	private int maxPoolSize;
	private int maxLifetime;
	private int borrowConnectionTimeout;
	private int loginTimeout;
	private int maintenanceInterval;
	private int maxIdleTime;
	private String testQuery;
}

4、重定两个数据源配置

1数据源

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

	// 配置数据源
		@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);
		}
}

2数据源

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

	// 配置数据源
		@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);
		}
}

5、App