ref itcast template password nds eth poi ntc
AccountService.java
- public interface AccountService {
- //转账方法
- void transfer(Integer from, Integer to, Double money);
- }
AccountServiceImpl.java
xml配置aop事务的AccountServiceImpl.java
- public class AccountServiceImpl implements AccountService {
- private AccountDao ad;
- @Override public void transfer(final Integer from, final Integer to, final Double money) {
- //减钱
- ad.decreaseMoney(from, money);
- int i = 1 / 0;
- //加钱
- ad.increaseMoney(to, money);
- }
- public void setAd(AccountDao ad) {
- this.ad = ad;
- }
- }
注解配置aop事务的AccountServiceImpl.java
- @Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=true)
- public class AccountServiceImpl implements AccountService {
- private AccountDao ad ;
- @Override
- @Transactional(isolation=Isolation.REPEATABLE_READ,propagation=Propagation.REQUIRED,readOnly=false)
- public void transfer(final Integer from,final Integer to,final Double money) {
- //减钱
- ad.decreaseMoney(from, money);
- int i = 1/0;
- //加钱
- ad.increaseMoney(to, money);
- }
- public void setAd(AccountDao ad) {
- this.ad = ad;
- }
- }
AccountDao.java
- public interface AccountDao {
- //加钱
- void increaseMoney(Integer id, Double money);
- //减钱
- void decreaseMoney(Integer id, Double money);
- }
AccountDaoImpl.java
- public class AccountDaoImpl extends JdbcDaoSupport implements AccountDao {
- @Override
- public void increaseMoney(Integer id, Double money) {
- //JdbcTemplate:spring整合jdbc操作数据库的类
- getJdbcTemplate().update("update t_account set money = money+? where id = ? ", money,id);
- }
- @Override
- public void decreaseMoney(Integer id, Double money) {
- getJdbcTemplate().update("update t_account set money = money-? where id = ? ", money,id);
- }
- }
- <?xml version="1.0" encoding="UTF-8" ?>
- <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans"
- xmlns:context="http://www.springframework.org/schema/context" 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-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd ">
- <!-- 指定spring读取db.properties配置 -->
- <context:property-placeholder location="classpath:db.properties" />
- <!-- 1.将连接池 -->
- <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
- <property name="jdbcUrl" value="${jdbc.jdbcUrl}">
- </property>
- <property name="driverClass" value="${jdbc.driverClass}">
- </property>
- <property name="user" value="${jdbc.user}">
- </property>
- <property name="password" value="${jdbc.password}">
- </property>
- </bean>
- <!-- 事务核心管理器,封装了所有事务操作. 依赖于连接池 -->
- <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
- <property name="dataSource" ref="dataSource">
- </property>
- </bean>
- <!-- 配置事务通知 -->
- <tx:advice id="txAdvice" transaction-manager="transactionManager">
- <tx:attributes>
- <!-- 以方法为单位,指定方法应用什么事务属性 isolation:隔离级别 propagation:传播行为 read-only:是否只读
- -->
- <tx:method name="save*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- <tx:method name="persist*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- <tx:method name="update*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- <tx:method name="modify*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- <tx:method name="delete*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- <tx:method name="remove*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- <tx:method name="get*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="true" />
- <tx:method name="find*" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="true" />
- <tx:method name="transfer" isolation="REPEATABLE_READ" propagation="REQUIRED"
- read-only="false" />
- </tx:attributes>
- </tx:advice>
- <!-- 配置织入 -->
- <aop:config>
- <!-- 配置切点表达式 -->
- <aop:pointcut expression="execution(* cn.itcast.service.*ServiceImpl.*(..))"
- id="txPc" />
- <!-- 配置切面 : 通知+切点 advice-ref:通知的名称 pointcut-ref:切点的名称 -->
- <aop:advisor advice-ref="txAdvice" pointcut-ref="txPc" />
- </aop:config>
- <!-- 2.Dao -->
- <bean name="accountDao" class="cn.itcast.dao.AccountDaoImpl">
- <property name="dataSource" ref="dataSource">
- </property>
- </bean>
- <!-- 3.Service -->
- <bean name="accountService" class="cn.itcast.service.AccountServiceImpl">
- <property name="ad" ref="accountDao">
- </property>
- </bean>
- </beans>
- <?xml version="1.0" encoding="UTF-8" ?>
- <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans"
- xmlns:context="http://www.springframework.org/schema/context" 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-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd ">
- <!-- 指定spring读取db.properties配置 -->
- <context:property-placeholder location="classpath:db.properties" />
- <!-- 1.将连接池 -->
- <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
- <property name="jdbcUrl" value="${jdbc.jdbcUrl}">
- </property>
- <property name="driverClass" value="${jdbc.driverClass}">
- </property>
- <property name="user" value="${jdbc.user}">
- </property>
- <property name="password" value="${jdbc.password}">
- </property>
- </bean>
- <!-- 事务核心管理器,封装了所有事务操作. 依赖于连接池 -->
- <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
- <property name="dataSource" ref="dataSource">
- </property>
- </bean>
- <!-- 开启使用注解管理aop事务 -->
- <tx:annotation-driven />
- <!-- 2.Dao -->
- <bean name="accountDao" class="cn.itcast.dao.AccountDaoImpl">
- <property name="dataSource" ref="dataSource">
- </property>
- </bean>
- <!-- 3.Service -->
- <bean name="accountService" class="cn.itcast.service.AccountServiceImpl">
- <property name="ad" ref="accountDao">
- </property>
- </bean>
- </beans>
- @RunWith(SpringJUnit4ClassRunner.class)
- @ContextConfiguration("classpath:applicationContext.xml")
- public class Demo {
- @Resource(name="accountService")
- private AccountService as;
- @Test
- public void fun1(){
- as.transfer(1, 2, 100d);
- }
- }
spring事务管理,xml配置aop事务和注解配置aop事务
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