SpringbBoot學習——4——SpringBoot事物管理

Springboot默認集成事物,只主要在方法上加上@Transactional即可
新增jta-atomikos依賴

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

新增配置文件信息

# Mysql 1
mysql.datasource.test1.url = jdbc:mysql://localhost:3306/test01?useUnicode=true&characterEncoding=utf-8
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 2
mysql.datasource.test2.url =jdbc:mysql://localhost:3306/test02?useUnicode=true&characterEncoding=utf-8
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

讀取配置文件信息

@Data
@ConfigurationProperties(prefix = "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;
}

@Data
@ConfigurationProperties(prefix = "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;
}

@Data註解是整合lombok後使用的餓，後續會詳細說 @Data註解含義就是生產屬性的get set方法
創建多數據源

@Configuration
// basePackages 最好分開配置 如果放在同一個文件夾可能會報錯
@MapperScan(basePackages = "com.springboot.test01", sqlSessionTemplateRef = "testSqlSessionTemplate")
public class MyBatisConfig1 {

	// 配置數據源

	@Bean(name = "testDataSource")
	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);

		// 將本地事務註冊到創 Atomikos全局事務
		AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();
		xaDataSource.setXaDataSource(mysqlXaDataSource);
		xaDataSource.setUniqueResourceName("testDataSource");

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

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

@Configuration
@MapperScan(basePackages = "com.springboot.test02", sqlSessionTemplateRef = "test2SqlSessionTemplate")
public class MyBatisConfig2 {

	// 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);
	}
}

service層：

@Service
@Slf4j
public class UserServiceTest01 {
	@Autowired
	private UserMapperTest01 userMapperTest01;

	@Transactional(transactionManager = "test1TransactionManager")
	public int insertUser(String name, Integer age) {
		int insertUserResult = userMapperTest01.insert(name, age);
		log.info("######insertUserResult:{}##########", insertUserResult);
		int i = 1 / age;
		// 怎麼樣驗證事務開啓成功!~
		return insertUserResult;
	}

}

@Service
@Slf4j
public class UserServiceTest02 {
	@Autowired
	private UserMapperTest01 userMapperTest02;

	@Transactional(transactionManager = "test2TransactionManager")
	public int insertUser(String name, Integer age) {
		int insertUserResult = userMapperTest01.insert(name, age);
		log.info("######insertUserResult:{}##########", insertUserResult);
		int i = 1 / age;
		// 怎麼樣驗證事務開啓成功!~
		return insertUserResult;
	}

}

mapper文件

public interface UserMapperTest02 {
	// 查詢語句
	@Select("SELECT * FROM USERS WHERE NAME = #{name}")
	User findByName(@Param("name") String name);

	// 添加
	@Insert("INSERT INTO USERS(NAME, AGE) VALUES(#{name}, #{age})")
	int insert(@Param("name") String name, @Param("age") Integer age);
}

public interface UserMapperTest01 {
	// 查詢語句
	@Select("SELECT * FROM USERS WHERE NAME = #{name}")
	User findByName(@Param("name") String name);

	// 添加
	@Insert("INSERT INTO USERS(NAME, AGE) VALUES(#{name}, #{age})")
	int insert(@Param("name") String name, @Param("age") Integer age);
}

@RestController
public class MybatisMultilDataSourceController {
	@Autowired
	private UserServiceTest01 userServiceTest01;
	@Autowired
	private UserServiceTest02 userServiceTest02;

	@RequestMapping("/insertUserTest01AndTest02")
	public int insertUserTest01AndTest02(String name, Integer age) {
		return userServiceTest02.insertUserTest01AndTest02(name, age);
	}
}

啓動類

// 開啓讀取配置文件
@EnableConfigurationProperties(value = { DBConfig1.class, DBConfig2.class })
@SpringBootApplication
public class MybatisApp03 {

	public static void main(String[] args) {
		SpringApplication.run(MybatisApp03.class, args);
	}

}