spring基于xml的事务控制

opm配置

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>cn.mepu</groupId>
    <artifactId>day06_spring_tx</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.7</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
    </dependencies>
</project>

dao配置

/**
 * @author shkstart
 * @create 2019-11-10 16:09
 */
public class AccountDaoImp extends JdbcDaoSupport implements IAccountDao {

    public Account findAccountById(Integer accountId) {
        List<Account> accounts = super.getJdbcTemplate().query("select * from account where id = ?",new BeanPropertyRowMapper<Account>(Account.class),accountId);
        return accounts.isEmpty()?null:accounts.get(0);
    }

    public Account findAccountByName(String accountName) {
        List<Account> accounts = super.getJdbcTemplate().query("select * from account where name = ?",new BeanPropertyRowMapper<Account>(Account.class),accountName);
        if(accounts.isEmpty()){
            return null;
        }
        if(accounts.size()>1){
            throw new RuntimeException("结果集不唯一");
        }
        return accounts.get(0);
    }

    public void updateAccount(Account account) {
        super.getJdbcTemplate().update("update account set name=?,money=? where id=?",account.getName(),account.getMoney(),account.getId());

    }

}

service配置

/**
 * @author shkstart
 * @create 2019-11-11 8:43
 */
public class AccountServiceImpl implements IAccountService {

    private IAccountDao accountDao;

    public void setAccountDao(IAccountDao accountDao) {
        this.accountDao = accountDao;
    }

    @Override
    public Account findAccountById(Integer accountId) {
        return accountDao.findAccountById(accountId);
    }

    public void transfer(String sourceName, String targetName, float money) {
        //2.1根据名称查询转出账户
        Account source = accountDao.findAccountByName(sourceName);
        //2.2根据名称查询转入账户
        Account target = accountDao.findAccountByName(targetName);
        //2.3转出账户减钱
        source.setMoney(source.getMoney()-money);
        //2.4转入账户加钱
        target.setMoney(target.getMoney()+money);
        //2.5更新转出账户
        accountDao.updateAccount(source);
//                int i=1/0;
        //2.6更新转入账户
        accountDao.updateAccount(target);
    }
}

bean文件配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">

<!--    配置业务层-->
    <bean id="accountService" class="cn.mepu.service.impl.AccountServiceImpl">
        <property name="accountDao" ref="accountDao"></property>

    </bean>

    <!-- 配置账户的持久层-->
    <bean id="accountDao" class="cn.mepu.dao.imp.AccountDaoImp">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 配置数据源-->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/javaee"></property>
        <property name="username" value="root"></property>
        <property name="password" value="root"></property>
    </bean>

<!--    spring中基于xml的声明事务控制
        1.配置事务管理器
        2.配饰事务的通知
            导入事务约束,tx名称空间约束和aop的
            使用tx.advice标签配置事务通知
                id：唯一标识
                transaction-manager：事务管理器引用
        3.配置aop中的通用点表达式
        4.建立事务通知和切入点表达式的对应关系
        5.配置事务的属性
            是在事务的通知tx:advice标签中
    -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--        注入DataSource-->
        <property name="dataSource" ref="dataSource"></property>
    </bean>

<!--    配置事务的通知-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
<!--        配置事务的属性
            name="transfer"
            isolation=指定事务的隔离界别默认是DEFAULT,表示数据库的默认级别
            propagation=事务的传播行为默认值是REQUIRED,表示一定会有事务，增删改的，查询可以使用SUPPORTS
            read-only=指定事务是否是只读默认false
            timeout=指定事务的超时时间默认值是-1表示永不超时秒为单位
            rollback-for=指定一个异常，当产生异常时事务回滚，产生其他异常时事务不回滚，没有默认值表示任何异常都回滚
            no-rollback-for=和rollback-for相反但是都回滚
            -->
        <tx:attributes>
            <tx:method name="*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
        </tx:attributes>
    </tx:advice>

<!--    配置aop-->
    <aop:config>
<!--        配置切入点表达式-->
        <aop:pointcut id="pt1" expression="execution( * cn.mepu.service.impl.*.*(..))"/>
<!--        建立事务通知和切入点表达式的对应关系-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"></aop:advisor>
    </aop:config>

</beans>

测试类

/**
 * @author shkstart
 * @create 2019-11-11 8:51
 */

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:bean.xml")
public class TestAccount {
    @Autowired
    private  IAccountService as;

    @Test
    public  void testTransfer(){
        as.transfer("aaa","bbb",100f);

    }

}