Spring框架中获得DataSource对象的方法

在Spring框架中有如下3种获得DataSource对象的方法:
1.从JNDI获得DataSource.
2.从第三方的连接池获得DataSource.
3.使用DriverManagerDataSource获得DataSource.

标签： Spring

代码片段(3)

[代码] JNDI方式

01	1、SpringJNDI数据源配置信息：

02	<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">

03	<property name="jndiName">

04	<value>java:comp/env/jcptDataSourceJNDI</value>

05	</property>

06

</bean>

07	jcptDataSourceJNDI是tomcat或者其他应用服务器配置的JNDI.

08

09	2、关于JNDI的配置(tomcat)：

10	修改tomcat目录conf/context.xml文件：

11	<Resource name="jcptDataSourceJNDI" auth="Container" type="javax.sql.DataSource"

12	maxActive="100" maxIdle="30" maxWait="10"   username="tysp"

13	password="12345678" driverClassName="oracle.jdbc.driver.OracleDriver"

14	url="jdbc:oracle:thin:@192.168.1.35:1521:orcl"/>

15

16	3、通过JNDI获取DataSource:

17	Context context = new InitialContext();

18	DataSource ds = (DataSource)context.lookup("java:comp/env/jcptDataSourceJNDI");

[代码] 使用DBCP连接池获取

01	要在Spring中使用DBCP连接池，需要引入commons-collections.jar、commons-dbcp.jar和commons-pool.jar。

02

03	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

04	<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"></property>

05	<property name="url" value="jdbc:oracle:thin:@192.168.1.35:1521:orcl"></property>

06	<property name="username" value="or_meal"></property>

07	<property name="password" value="or_meal"></property>

08	<property name="maxActive" value="100"></property>

09	<property name="maxIdle" value="30"></property>

10	<property name="maxWait" value="10"></property>

11	<property name="defaultAutoCommit" value="false"></property>

12

</bean>

13

14	<bean id="sessionFactory"

15	class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

16	<property name="dataSource">

17	<ref bean="dataSource" />

18	</property>

19

20	<property name="hibernateProperties">

21

<props>

22	<prop key="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect

23

</prop>

24	<prop key="show_sql">true</prop>

25	<prop key="format_sql">true</prop>

26

</props>

27	</property>

28	<property name="mappingResources">

29	<list></list>

30	</property>

31

</bean>

[代码] 使用DriverManagerDataSource

view source print ?

01	<bean id="dataSource"

02	class="org.springframework.jdbc.datasource.DriverManagerDataSource">

03	<property name="driverClassName">

04	<value>oracle.jdbc.driver.OracleDriver

05

</value>

06	</property>

07	<property name="url">

08	<value>jdbc:oracle:thin:@192.168.1.35:orcl

09

</value>

10	</property>

11	<property name="username">

12	<value>or_meal</value>

13	</property>

14	<property name="password">

15	<value>or_meal</value>

16	</property>

17

</bean>