配置hibernate数据源的5种方法

以你之姓@ 2022-05-24 14:20 194阅读 0赞

文章摘自：https://blog.csdn.net/zljjava/article/details/7535710

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，一个接口一个实现：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

1.  **package** com.dao;  
2.  **public** **interface** UserDao \{  
3.      **public** **void** getUser();    
4.  \}

实现：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

1.  **package** com.dao.impl;  
2.  **import** org.springframework.orm.hibernate3.support.HibernateDaoSupport;  
3.  **import** com.dao.UserDao;  
4.  **public** **class** UserDaoImpl **extends** HibernateDaoSupport **implements** UserDao \{  
5.      **public** **void** getUser()\{        
6.      \}     
7.  \}

第一种：每个Bean都有一个代理：

Xml代码   [![收藏代码][icon_star.png]][icon_star.png 1]

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.        
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.           
19.         **<****property** name="initialSize" value="10" **/>**  
20.           
21.         **<****property** name="maxActive" value="10" **/>**  
22.           
23.         **<****property** name="maxIdle" value="20" **/>**  
24.           
25.         **<****property** name="minIdle" value="10" **/>**  
26.         **<****property** name="defaultAutoCommit" value="true" **/>**  
27.     **</****bean****>**  
28.       
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.         
48.     **<****bean** id="transactionManager"  
49.         class="org.springframework.orm.hibernate3.HibernateTransactionManager"**>**  
50.         **<****property** name="sessionFactory" ref="sessionFactory" **/>**  
51.     **</****bean****>**      
52.       
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.             
59.         **<****property** name="transactionManager" ref="transactionManager" **/>**       
60.         **<****property** name="target" ref="userDaoAgency" **/>**    
61.         **<****property** name="proxyInterfaces" value="com.dao.UserDao" **/>**  
62.             
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：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

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.        
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.           
19.         <property name="initialSize" value="10" />  
20.           
21.         <property name="maxActive" value="10" />  
22.           
23.         <property name="maxIdle" value="20" />  
24.           
25.         <property name="minIdle" value="10" />  
26.         <property name="defaultAutoCommit" value="true" />  
27.     </bean>  
28.       
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.       
48.     <bean id="transactionManager"  
49.         **class**="org.springframework.orm.hibernate3.HibernateTransactionManager">  
50.         <property name="sessionFactory" ref="sessionFactory" />  
51.     </bean>  
52.        
53.     <bean id="base"  
54.         **class**="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"  
55.         lazy-init="true" **abstract**="true">  
56.           
57.         <property name="transactionManager" ref="transactionManager" />  
58.           
59.         <property name="transactionAttributes">  
60.             <props>  
61.                 <prop key="\*">PROPAGATION\_REQUIRED</prop>  
62.             </props>  
63.         </property>  
64.     </bean>  
65.       
66.     <bean id="userDao"  
67.         **class**="com.dao.impl.UserDaoImpl">  
68.         <property name="sessionFactory" ref="sessionFactory" />  
69.     </bean>  
70.       
71.     <bean id="userDaoAgency" parent="base">  
72.         <property name="target" ref="userDao" />  
73.     </bean>  
74. </beans>

第三种：拦截器：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

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.        
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.           
19.         <property name="initialSize" value="10" />  
20.           
21.         <property name="maxActive" value="10" />  
22.           
23.         <property name="maxIdle" value="20" />  
24.           
25.         <property name="minIdle" value="10" />  
26.         <property name="defaultAutoCommit" value="true" />  
27.     </bean>  
28.       
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.          
48.     <bean id="transactionManager"  
49.         **class**="org.springframework.orm.hibernate3.HibernateTransactionManager">  
50.         <property name="sessionFactory" ref="sessionFactory" />  
51.     </bean>     
52.         
53.     <bean id="transactionInterceptor"    
54.         **class**="org.springframework.transaction.interceptor.TransactionInterceptor">    
55.         <property name="transactionManager" ref="transactionManager" />    
56.             
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.       
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：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

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.       
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.           
23.         <property name="initialSize" value="10" />  
24.           
25.         <property name="maxActive" value="10" />  
26.           
27.         <property name="maxIdle" value="20" />  
28.           
29.         <property name="minIdle" value="10" />  
30.         <property name="defaultAutoCommit" value="true" />  
31.     </bean>  
32.       
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.         
54.     <bean id="transactionManager"  
55.         **class**="org.springframework.orm.hibernate3.HibernateTransactionManager">  
56.         <property name="sessionFactory" ref="sessionFactory" />  
57.     </bean>  
58.       
59.     <tx:advice id="txAdvice" transaction-manager="transactionManager">  
60.         <tx:attributes>  
61.             <tx:method name="\*" propagation="REQUIRED" />  
62.         </tx:attributes>  
63.     </tx:advice>  
64.       
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：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

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.       
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.           
23.         <property name="initialSize" value="10" />  
24.           
25.         <property name="maxActive" value="10" />  
26.           
27.         <property name="maxIdle" value="20" />  
28.           
29.         <property name="minIdle" value="10" />  
30.         <property name="defaultAutoCommit" value="true" />  
31.     </bean>  
32.       
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.       
53.     <context:component-scan base-**package**="com.dao" />  
54.       
55.     <tx:annotation-driven transaction-manager="transactionManager"/>  
56.         
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：

Java代码   [![收藏代码][icon_star.png]][icon_star.png 1]

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. \}

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