Spring 事务 搭建转账环境以及事务管理手动编写事务管理

1. 创建业务层Dao接口和实现

   package tx;
   
   public interface AccountDao {
   
       public void outMoney(String from,Double money);
       public void inMoney(String to,Double money);
   
   }
   

   package tx;
   
   public interface AccountService {
       public void  transfer(
               String from,String to,Double money
       );
   }
   

   package tx;
   
   import org.springframework.transaction.TransactionStatus;
   import org.springframework.transaction.support.TransactionCallbackWithoutResult;
   import org.springframework.transaction.support.TransactionTemplate;
   
   public class AccountServiceImplement implements AccountService{
       private AccountDao accountDao;
   
       public void setAccountDao(AccountDao accountDao) {
           this.accountDao = accountDao;
       }
   
       private TransactionTemplate transactionTemplate;
   
       public void setTransactionTemplate(TransactionTemplate transactionTemplate) {
           this.transactionTemplate = transactionTemplate;
       }
   
       @Override
       public void transfer( final String from,final String to,final Double money) {
   
           transactionTemplate.execute(new TransactionCallbackWithoutResult() {
               @Override
               protected void doInTransactionWithoutResult(TransactionStatus transactionStatus) {
   
                   accountDao.outMoney(from,money);
                   int d =1/0;
                   accountDao.inMoney(to,money);
               }
           });
   
   
   
       }
   }
   

   配置业务层：

   <bean id="accountService" class="tx.AccountServiceImplement">
           <property name="accountDao" ref="accountDao"/>
           <!--注入事务管理模板-->
   
           <property name="transactionTemplate" ref="transactionTemplate"/>
       </bean>
       <!--Dao-->
       <bean id="accountDao" class="tx.AccountDaoImplement">
           <property name="dataSource" ref="dataSource"/>
       </bean>
   
       <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
       <!--配置c3p0连接池-->
       <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
           <property name="driverClass" value="${driverClass}"/>
           <property name="jdbcUrl" value="${jdbcUrl}"/>
           <property name="user" value="${user}"/>
           <property name="password" value="${password}"/>
       </bean>
   
       <!--<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
           <constructor-arg>
               <ref bean="dataSource" />
           </constructor-arg>
       </bean>-->
       <!--配置平台事务管理=======-->
       <bean id="transactionMsnger" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
           <property name="dataSource" ref="dataSource"/>
       </bean>
   <!--配置事务管理的模板-->
       <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
           <constructor-arg>
               <ref bean="transactionMsnger"/>
           </constructor-arg>
       </bean>
   

   测试类：

   package tx;
   
   import org.junit.Test;
   import org.junit.runner.RunWith;
   import org.springframework.test.context.ContextConfiguration;
   import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
   
   import javax.annotation.Resource;
   
   @RunWith(SpringJUnit4ClassRunner.class)
   @ContextConfiguration("classpath:tx.xml")
   public class SpringTest1 {
       @Resource(name = "accountService")
       private AccountService accountService;
       @Test
       public void test1(){
           accountService.transfer("王4一","王3一",1000d);
       }
   }