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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&amp;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&amp;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&amp;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&amp;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&amp;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

 

Spring管理事务配置的五种方式