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.
[代码] JNDI方式
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<bean id="dataSource"
class="org.springframework.jndi.JndiObjectFactoryBean"> |
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<property name="jndiName"> |
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<value>java:comp/env/jcptDataSourceJNDI</value> |
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jcptDataSourceJNDI是tomcat或者其他应用服务器配置的JNDI. |
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修改tomcat目录conf/context.xml文件： |
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<Resource name="jcptDataSourceJNDI"
auth="Container"
type="javax.sql.DataSource" |
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maxActive="100"
maxIdle="30"
maxWait="10" username="tysp" |
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password="12345678"
driverClassName="oracle.jdbc.driver.OracleDriver" |
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url="jdbc:oracle:thin:@192.168.1.35:1521:orcl"/>
|
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Context context =
new InitialContext(); |
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DataSource ds = (DataSource)context.lookup("java:comp/env/jcptDataSourceJNDI"); |
[代码] 使用DBCP连接池获取
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要在Spring中使用DBCP连接池，需要引入commons-collections.jar、commons-dbcp.jar和commons-pool.jar。 |
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<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource"> |
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<property name="driverClassName"
value="oracle.jdbc.driver.OracleDriver"></property> |
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<property name="url"
value="jdbc:oracle:thin:@192.168.1.35:1521:orcl"></property> |
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<property name="username"
value="or_meal"></property> |
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<property name="password"
value="or_meal"></property> |
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<property name="maxActive"
value="100"></property> |
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<property name="maxIdle"
value="30"></property> |
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<property name="maxWait"
value="10"></property> |
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<property name="defaultAutoCommit"
value="false"></property> |
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<bean id="sessionFactory" |
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class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> |
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<property name="dataSource"> |
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<ref bean="dataSource"
/> |
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<property name="hibernateProperties"> |
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<prop key="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect |
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<prop key="show_sql">true</prop> |
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<prop key="format_sql">true</prop> |
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<property name="mappingResources"> |
[代码] 使用DriverManagerDataSource
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class="org.springframework.jdbc.datasource.DriverManagerDataSource"> |
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<property name="driverClassName"> |
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<value>oracle.jdbc.driver.OracleDriver |
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<value>jdbc:oracle:thin:@192.168.1.35:orcl |
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<property name="username"> |
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<value>or_meal</value> |
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<property name="password"> |
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<value>or_meal</value> |