Spring管理事务配置的五种方式
spring配置文件中关于事务配置总是由三个组成部分，DataSource、TransactionManager和代理机制这三部分，无论是那种配置方法，一般变化的只是代理机制这块！
首先我创建了两个类，一个接口类一个实现类：
package com.dao; public interface UserDao { public void getUser(); }
package com.dao.impl; import org.springframework.orm.hibernate3.support.HibernateDaoSupport; import com.dao.UserDao; public class UserDaoImpl extends HibernateDaoSupport implements UserDao { public void getUser(){ } }
第一种：每个Bean都有一个代理：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:aop="http://www.springframework.org/schema/aop" 5 xmlns:tx="http://www.springframework.org/schema/tx" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd 7 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd 8 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> 9 <!-- 数据源 --> 10 <bean id="dataSource" 11 class="org.apache.commons.dbcp.BasicDataSource" 12 destroy-method="close"> 13 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 14 <property name="url" 15 value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" /> 16 <property name="username" value="root" /> 17 <property name="password" value="root" /> 18 <!-- 连接池启动时的初始值 --> 19 <property name="initialSize" value="10" /> 20 <!-- 连接池的最大值 --> 21 <property name="maxActive" value="10" /> 22 <!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --> 23 <property name="maxIdle" value="20" /> 24 <!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --> 25 <property name="minIdle" value="10" /> 26 <property name="defaultAutoCommit" value="true" /> 27 </bean> 28 <!-- 会话工厂 --> 29 <bean id="sessionFactory" 30 class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 31 <property name="dataSource" ref="dataSource" /> 32 <property name="mappingLocations"> 33 <list> 34 <value>classpath:/com/nms/entity/**/*.hbm.xml</value> 35 </list> 36 </property> 37 <property name="hibernateProperties"> 38 <props> 39 <prop key="hibernate.dialect"> 40 org.hibernate.dialect.MySQL5Dialect 41 </prop> 42 <prop key="hibernate.show_sql">true</prop> 43 <prop key="hibernate.format_sql">true</prop> 44 </props> 45 </property> 46 </bean> 47 <!-- 定义事务管理器 --> 48 <bean id="transactionManager" 49 class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 50 <property name="sessionFactory" ref="sessionFactory" /> 51 </bean> 52 <!-- 配置服务层 --> 53 <bean id="userDaoAgency" class="com.dao.impl.UserDaoImpl"> 54 <property name="sessionFactory" ref="sessionFactory" /> 55 </bean> 56 <bean id="userDao" 57 class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> 58 <!-- 配置事务管理器 --> 59 <property name="transactionManager" ref="transactionManager" /> 60 <property name="target" ref="userDaoAgency" /> 61 <property name="proxyInterfaces" value="com.dao.UserDao" /> 62 <!-- 配置事务属性 --> 63 <property name="transactionAttributes"> 64 <props> 65 <prop key="*">PROPAGATION_REQUIRED</prop> 66 </props> 67 </property> 68 </bean> 69 </beans>
第二种：所有Bean共享一个代理：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <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-2.0.xsd 3 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd 4 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> 5 <!-- 数据源 --> 6 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> 7 <property name="driverClassName" value="com.mysql.jdbc.Driver"/> 8 <property name="url" value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8"/> 9 <property name="username" value="root"/> 10 <property name="password" value="root"/> 11 <!-- 连接池启动时的初始值 --> 12 <property name="initialSize" value="10"/> 13 <!-- 连接池的最大值 --> 14 <property name="maxActive" value="10"/> 15 <!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --> 16 <property name="maxIdle" value="20"/> 17 <!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --> 18 <property name="minIdle" value="10"/> 19 <property name="defaultAutoCommit" value="true"/> 20 </bean> 21 <!-- 会话工厂 --> 22 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 23 <property name="dataSource" ref="dataSource"/> 24 <property name="mappingLocations"> 25 <list> 26 <value>classpath:/com/nms/entity/**/*.hbm.xml</value> 27 </list> 28 </property> 29 <property name="hibernateProperties"> 30 <props> 31 <prop key="hibernate.dialect"> 32 org.hibernate.dialect.MySQL5Dialect 33 </prop> 34 <prop key="hibernate.show_sql">true</prop> 35 <prop key="hibernate.format_sql">true</prop> 36 </props> 37 </property> 38 </bean> 39 <!-- 定义事务管理器 --> 40 <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 41 <property name="sessionFactory" ref="sessionFactory"/> 42 </bean> 43 <!-- 定义事务 --> 44 <bean id="base" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" lazy-init="true" abstract="true"> 45 <!-- 配置事务管理器 --> 46 <property name="transactionManager" ref="transactionManager"/> 47 <!-- 配置事务属性 --> 48 <property name="transactionAttributes"> 49 <props> 50 <prop key="*">PROPAGATION_REQUIRED</prop> 51 </props> 52 </property> 53 </bean> 54 <!-- 配置服务层 --> 55 <bean id="userDao" class="com.dao.impl.UserDaoImpl"> 56 <property name="sessionFactory" ref="sessionFactory"/> 57 </bean> 58 <!-- 代理对象 --> 59 <bean id="userDaoAgency" parent="base"> 60 <property name="target" ref="userDao"/> 61 </bean> 62 </beans>
第三种：拦截器：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:aop="http://www.springframework.org/schema/aop" 5 xmlns:tx="http://www.springframework.org/schema/tx" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd 7 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd 8 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> 9 <!-- 数据源 --> 10 <bean id="dataSource" 11 class="org.apache.commons.dbcp.BasicDataSource" 12 destroy-method="close"> 13 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 14 <property name="url" 15 value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" /> 16 <property name="username" value="root" /> 17 <property name="password" value="root" /> 18 <!-- 连接池启动时的初始值 --> 19 <property name="initialSize" value="10" /> 20 <!-- 连接池的最大值 --> 21 <property name="maxActive" value="10" /> 22 <!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --> 23 <property name="maxIdle" value="20" /> 24 <!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --> 25 <property name="minIdle" value="10" /> 26 <property name="defaultAutoCommit" value="true" /> 27 </bean> 28 <!-- 会话工厂 --> 29 <bean id="sessionFactory" 30 class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 31 <property name="dataSource" ref="dataSource" /> 32 <property name="mappingLocations"> 33 <list> 34 <value>classpath:/com/nms/entity/**/*.hbm.xml</value> 35 </list> 36 </property> 37 <property name="hibernateProperties"> 38 <props> 39 <prop key="hibernate.dialect"> 40 org.hibernate.dialect.MySQL5Dialect 41 </prop> 42 <prop key="hibernate.show_sql">true</prop> 43 <prop key="hibernate.format_sql">true</prop> 44 </props> 45 </property> 46 </bean> 47 <!-- 定义事务管理器（声明式的事务） --> 48 <bean id="transactionManager" 49 class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 50 <property name="sessionFactory" ref="sessionFactory" /> 51 </bean> 52 <!-- 定义事务 --> 53 <bean id="transactionInterceptor" 54 class="org.springframework.transaction.interceptor.TransactionInterceptor"> 55 <property name="transactionManager" ref="transactionManager" /> 56 <!-- 配置事务属性 --> 57 <property name="transactionAttributes"> 58 <props> 59 <prop key="*">PROPAGATION_REQUIRED</prop> 60 </props> 61 </property> 62 </bean> 63 <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator"> 64 <property name="beanNames"> 65 <list> 66 <value>*DaoImpl</value> 67 </list> 68 </property> 69 <property name="interceptorNames"> 70 <list> 71 <value>transactionInterceptor</value> 72 </list> 73 </property> 74 </bean> 75 <!-- 配置服务层 --> 76 <bean id="userDaoAgency" class="com.dao.impl.UserDaoImpl"> 77 <property name="sessionFactory" ref="sessionFactory" /> 78 </bean> 79 </beans>
第四种：使用tx标签配置的拦截器：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:aop="http://www.springframework.org/schema/aop" 6 xmlns:tx="http://www.springframework.org/schema/tx" 7 xsi:schemaLocation="http://www.springframework.org/schema/beans 8 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 9 http://www.springframework.org/schema/context 10 http://www.springframework.org/schema/context/spring-context-2.5.xsd 11 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 12 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"> 13 <!-- 数据源 --> 14 <bean id="dataSource" 15 class="org.apache.commons.dbcp.BasicDataSource" 16 destroy-method="close"> 17 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 18 <property name="url" 19 value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" /> 20 <property name="username" value="root" /> 21 <property name="password" value="root" /> 22 <!-- 连接池启动时的初始值 --> 23 <property name="initialSize" value="10" /> 24 <!-- 连接池的最大值 --> 25 <property name="maxActive" value="10" /> 26 <!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --> 27 <property name="maxIdle" value="20" /> 28 <!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --> 29 <property name="minIdle" value="10" /> 30 <property name="defaultAutoCommit" value="true" /> 31 </bean> 32 <!-- 会话工厂 --> 33 <bean id="sessionFactory" 34 class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 35 <property name="dataSource" ref="dataSource" /> 36 <property name="mappingLocations"> 37 <list> 38 <value>classpath:/com/nms/entity/**/*.hbm.xml</value> 39 </list> 40 </property> 41 <property name="hibernateProperties"> 42 <props> 43 <prop key="hibernate.dialect"> 44 org.hibernate.dialect.MySQL5Dialect 45 </prop> 46 <prop key="hibernate.show_sql">true</prop> 47 <prop key="hibernate.format_sql">true</prop> 48 </props> 49 </property> 50 </bean> 51 <context:annotation-config /> 52 <context:component-scan base-package="com.dao" /> 53 <!-- 定义事务管理器 --> 54 <bean id="transactionManager" 55 class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 56 <property name="sessionFactory" ref="sessionFactory" /> 57 </bean> 58 <!-- 定义事务 --> 59 <tx:advice id="txAdvice" transaction-manager="transactionManager"> 60 <tx:attributes> 61 <tx:method name="*" propagation="REQUIRED" /> 62 </tx:attributes> 63 </tx:advice> 64 <!-- 定义切面 --> 65 <aop:config> 66 <aop:pointcut id="interceptorPointCuts" expression="execution(* com.dao.*.*(..))" /> 67 <aop:advisor advice-ref="txAdvice" pointcut-ref="interceptorPointCuts" /> 68 </aop:config> 69 </beans>
第五种：注解：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:aop="http://www.springframework.org/schema/aop" 6 xmlns:tx="http://www.springframework.org/schema/tx" 7 xsi:schemaLocation="http://www.springframework.org/schema/beans 8 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 9 http://www.springframework.org/schema/context 10 http://www.springframework.org/schema/context/spring-context-2.5.xsd 11 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd 12 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"> 13 <!-- 数据源 --> 14 <bean id="dataSource" 15 class="org.apache.commons.dbcp.BasicDataSource" 16 destroy-method="close"> 17 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 18 <property name="url" 19 value="jdbc:mysql://192.168.0.244:3306/test?useUnicode=true&characterEncoding=UTF-8" /> 20 <property name="username" value="root" /> 21 <property name="password" value="root" /> 22 <!-- 连接池启动时的初始值 --> 23 <property name="initialSize" value="10" /> 24 <!-- 连接池的最大值 --> 25 <property name="maxActive" value="10" /> 26 <!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --> 27 <property name="maxIdle" value="20" /> 28 <!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --> 29 <property name="minIdle" value="10" /> 30 <property name="defaultAutoCommit" value="true" /> 31 </bean> 32 <!-- 会话工厂 --> 33 <bean id="sessionFactory" 34 class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 35 <property name="dataSource" ref="dataSource" /> 36 <property name="mappingLocations"> 37 <list> 38 <value>classpath:/com/nms/entity/**/*.hbm.xml</value> 39 </list> 40 </property> 41 <property name="hibernateProperties"> 42 <props> 43 <prop key="hibernate.dialect"> 44 org.hibernate.dialect.MySQL5Dialect 45 </prop> 46 <prop key="hibernate.show_sql">true</prop> 47 <prop key="hibernate.format_sql">true</prop> 48 </props> 49 </property> 50 </bean> 51 <context:annotation-config /> 52 <!-- 使用注解的包路径 --> 53 <context:component-scan base-package="com.dao" /> 54 <!-- 支持 @Transactional 标记 --> 55 <tx:annotation-driven transaction-manager="transactionManager"/> 56 <!-- 定义事务管理器 --> 57 <bean id="transactionManager" 58 class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 59 <property name="sessionFactory" ref="sessionFactory" /> 60 </bean> 61 </beans>
如果使用了注解，那么实现类应该这样写：
1 package com.dao.impl; 2 import org.springframework.orm.hibernate3.support.HibernateDaoSupport; 3 import org.springframework.stereotype.Component; 4 import org.springframework.transaction.annotation.Transactional; 5 import com.dao.UserDao; 6 @Transactional 7 @Component("userDaoAgency") 8 public class UserDaoImpl extends HibernateDaoSupport implements UserDao { 9 /** 10 * 为方法增加事务处理特性 11 */ 12 @Transactional(readOnly=true) 13 public void getUser(){ 14 } 15 }
这样每个方法都能自己定义自己的事务处理！
转自：http://www.iteye.com/topic/1123347
