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  • Spring 事务管理-只记录xml部分

    1.手动配置事务的方式是

    applicationContext.xml

    <?xml version="1.0" encoding="UTF-8" ?>
    <beans   xmlns="http://www.springframework.org/schema/beans" 
             xmlns:context="http://www.springframework.org/schema/context"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:aop="http://www.springframework.org/schema/aop"
             xsi:schemaLocation="http://www.springframework.org/schema/beans 
                                  http://www.springframework.org/schema/beans/spring-beans.xsd
                                  http://www.springframework.org/schema/context
                                  http://www.springframework.org/schema/context/spring-context.xsd
                                  http://www.springframework.org/schema/aop
                                  http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
            
            
            <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
                <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
                <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/spring"></property>
                <property name="user" value="root"></property>
                <property name="password" value="123456"></property>
            
            </bean>
         
             <bean id="accountDao" class="com.test.spring.aop.tansation.example.dao.AccountDaoImpl">
                 <property name="dataSource" ref="dataSource"></property>
             </bean>
             
             <bean id="accountService" class="com.test.spring.aop.tansation.example.service.AccountServiceImpl">
                 <property name="accountDao" ref="accountDao"></property>
                 <property name="transactionTemplate" ref="transationTemplate"></property>
             </bean>
             
             <!-- 手动方式 -->
             <bean id="transationTemplate" class="org.springframework.transaction.support.TransactionTemplate">
                 <property name="transactionManager" ref="txManage"></property>
             </bean>
             
             <bean id="txManage" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                 <property name="dataSource" ref="dataSource"></property>
             </bean>
    </beans>

    dao层(接口类这里不写)

    package com.test.spring.aop.tansation.example.dao;
    
    import org.springframework.jdbc.core.support.JdbcDaoSupport;
    
    public class AccountDaoImpl extends JdbcDaoSupport implements AccountDao {
    
        public void in(String inner, int money) {
            this.getJdbcTemplate().update("update account set money = money -? where username = ?", money, inner);
    
        }
    
        public void out(String outter, int money) {
            this.getJdbcTemplate().update("update account set money = money +? where username = ?", money, outter);
        }
    
    }

    service层

    package com.test.spring.aop.tansation.example.service;
    
    import org.springframework.transaction.TransactionStatus;
    import org.springframework.transaction.support.TransactionCallbackWithoutResult;
    import org.springframework.transaction.support.TransactionTemplate;
    
    import com.test.spring.aop.tansation.example.dao.AccountDao;
    
    public class AccountServiceImpl implements AccountService {
    
        private AccountDao accountDao;
        private TransactionTemplate transactionTemplate;
        
        public void setAccountDao(AccountDao accountDao) {
            this.accountDao = accountDao;
        }
        public void setTransactionTemplate(TransactionTemplate transactionTemplate) {
            this.transactionTemplate = transactionTemplate;
        }
        
        
        public void tansfer(final String inner, final String outter, final int money) {
            
            //手动方式配置
            transactionTemplate.execute(new TransactionCallbackWithoutResult() {
                
                @Override
                protected void doInTransactionWithoutResult(TransactionStatus status) {
                    accountDao.out(outter, money);
              //遇到异常时,事务回滚
    int i = 1/0; accountDao.in(inner, money); } }); } }

    测试

    package com.test.spring.aop.tansation.example;
    
    import org.junit.Test;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    
    import com.test.spring.aop.tansation.example.service.AccountService;
    
    public class TestExample {
    
        @Test
        public void test() {
            ApplicationContext ctx = new ClassPathXmlApplicationContext("com/test/spring/aop/tansation/example/applicationContext.xml");
        
            AccountService as = ctx.getBean("accountService",AccountService.class);
            
            as.tansfer("jack", "peter", 200);
        }
    }

    2.半自动,使用代理的方式

    这里只需要修改一下service层和配置就可以了

    applicationContext.xml

    <?xml version="1.0" encoding="UTF-8" ?>
    <beans   xmlns="http://www.springframework.org/schema/beans" 
             xmlns:context="http://www.springframework.org/schema/context"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:aop="http://www.springframework.org/schema/aop"
             xsi:schemaLocation="http://www.springframework.org/schema/beans 
                                  http://www.springframework.org/schema/beans/spring-beans.xsd
                                  http://www.springframework.org/schema/context
                                  http://www.springframework.org/schema/context/spring-context.xsd
                                  http://www.springframework.org/schema/aop
                                  http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
            
            
            <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
                <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
                <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/spring"></property>
                <property name="user" value="root"></property>
                <property name="password" value="123456"></property>
            
            </bean>
         
             <bean id="accountDao" class="com.test.spring.aop.tansation.example.dao.AccountDaoImpl">
                 <property name="dataSource" ref="dataSource"></property>
             </bean>
             
             <bean id="accountService" class="com.test.spring.aop.tansation.example.service.AccountServiceImpl">
                 <property name="accountDao" ref="accountDao"></property>
                 <property name="transactionTemplate" ref="transationTemplateProxy"></property>
             </bean>
          
             
             <!-- 半自动方式 -->
             <!-- 事务代理工厂类
                     参数1:接口
                     参数2:实现类
                     参数3:事务管理器
                     参数4:事务属性(事务详情)
                         prop.key:确认那些方法使用事务
                         prop.value:事务详情 具体参数信息可以查阅TransactionDefinition类
                             格式:Propagation,Isolation,readOnly,-Exception,+Exception
                             Propagation:传播行为
                             Isolation:隔离级别
                             readOnly:连接是否只读
                             -Exception:当遇到异常时,回滚
                             +Exception:当遇到异常时,提交
                     例子1:默认传播行为和隔离级别
                         <prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT</prop>
                     例子2:只读,连接只读,不能进行update操作
                         <prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly</prop>
                     例子3:当遇到指定异常时,提交仍然提交事务,以为着之前执行的都将提交
                         <prop key="transfer">PROPAGATION_REQUIRED,ISOLATION_DEFAULT,+java.lang.ArithmeticException</prop>
              -->
             <bean id="transationTemplateProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
                 <property name="proxyInterfaces" value="com.test.spring.aop.tansation.example.service.AccountService"></property>
                 <property name="target" ref="accountService"></property>
                 <property name="transactionManager" ref="txManage"></property>
                 <property name="transactionAttributes">
                     <props>
                         <prop key="transfer"></prop>
                     </props>
                 </property>
             </bean>
             
             <bean id="txManage" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                 <property name="dataSource" ref="dataSource"></property>
             
             </bean>
    </beans>

    service层

    package com.test.spring.aop.tansation.example.service;
    
    import org.springframework.transaction.TransactionStatus;
    import org.springframework.transaction.support.TransactionCallbackWithoutResult;
    import org.springframework.transaction.support.TransactionTemplate;
    
    import com.test.spring.aop.tansation.example.dao.AccountDao;
    
    public class AccountServiceImpl implements AccountService {
    
        private AccountDao accountDao;
        private TransactionTemplate transactionTemplate;
        
        public void setAccountDao(AccountDao accountDao) {
            this.accountDao = accountDao;
        }
        public void setTransactionTemplate(TransactionTemplate transactionTemplate) {
            this.transactionTemplate = transactionTemplate;
        }
        
        
        public void tansfer(final String inner, final String outter, final int money) {
            
            accountDao.out(outter, money);
            int i = 1/0;
            accountDao.in(inner, money);
    
        }
    
    }

    3. 使用spring自动的方式

    根据上面的一大串配置,会是很头疼,现在就是用全自动,简化上面繁琐的配置,除了修改配置外,其余的都不需要修改

    <?xml version="1.0" encoding="UTF-8" ?>
    <beans   xmlns="http://www.springframework.org/schema/beans" 
             xmlns:context="http://www.springframework.org/schema/context"
             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/context
                                  http://www.springframework.org/schema/context/spring-context.xsd
                                  http://www.springframework.org/schema/aop
                                  http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
                                  http://www.springframework.org/schema/tx
                                  http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
            
            
            <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
                <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
                <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/spring"></property>
                <property name="user" value="root"></property>
                <property name="password" value="123456"></property>
            
            </bean>
         
             <bean id="accountDao" class="com.test.spring.aop.tansation.example.dao.AccountDaoImpl">
                 <property name="dataSource" ref="dataSource"></property>
             </bean>
             
             <bean id="accountService" class="com.test.spring.aop.tansation.example.service.AccountServiceImpl">
                 <property name="accountDao" ref="accountDao"></property>
                 <!-- <property name="transactionTemplate" ref="transationTemplate"></property> -->
                 <property name="transactionTemplate" ref="transationTemplateProxy"></property>
             </bean>
    
             <!-- 全自动
                 这里分为3块,具体的流程是,先有一个事务管理器,然后有一个事务管理通知,最后一个aop的切面配置,
                 对切面配置中的切入点进行事务管理,当遇到与事务管理通知配置中相符合的类名时,进行与之相符的配置行为,例如只读,或者异常提交等
              -->
             <!-- 1.事务管理器 -->
             <bean id="txManage" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                 <property name="dataSource" ref="dataSource"></property>
             </bean>
             <!-- 2.事务通知 
                 tx:method 就是指定那个方法,需要使用事务,而事务的详情就由里面的几个属性类决定
             -->
             <tx:advice id="txAdvice" transaction-manager="txManage">
                 <tx:attributes>
                     <tx:method name="transfer" propagation="REQUIRED" isolation="DEFAULT"/>
                 </tx:attributes>
             </tx:advice>
             <!-- 3.aop切面类 -->
             <aop:config>
                 <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.test.spring.aop.tansation.example.service.AccountServiceImpl.*(..))"/>
             </aop:config>
             
    </beans>
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  • 原文地址:https://www.cnblogs.com/oscar1987121/p/10960570.html
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