spring中jdbc的配置
本文中的JdbcTemplate的用法可以参看官方文档http://docs.spring.io/spring/docs/3.2.5.RELEASE/spring-framework-reference/htmlsingle/#jdbc-JdbcTemplate
我们使用spring时候,一般数据库连接交给spring去管理。首先配置datasource
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/spring" /> <property name="username" value="root" /> <property name="password" value="root" /> </bean>
配置好之后,你如果乐意,就可以直接把它注入到类中使用,例如:
spring提供了操作数据库的模板类,JdbcTemplate。如果使用它,代码就变得简单了,我们创建一个基础的数据库交互类,BaseDao,然后把JdbcTemplate的实例注入进去
这样其他类只要集成这个BaseDao就可以使用jdbctemplate的方法了。
xml配置
如果你想为jdbcTemple加入事物配置的话你可以这样加入:
<!-- the transactional advice (what 'happens'; see the <aop:advisor/> bean below) --> <tx:advice id="txAdvice" transaction-manager="txManager"> <!-- the transactional semantics... --> <tx:attributes> <!-- all methods starting with 'get' are read-only --> <tx:method name="get*" read-only="true"/> <!-- other methods use the default transaction settings (see below) --> <tx:method name="*"/> </tx:attributes> </tx:advice> <!-- ensure that the above transactional advice runs for any execution of an operation defined by the FooService interface --> <aop:config> <aop:pointcut id="fooServiceOperation" expression="execution(* x.y.service.FooService.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="fooServiceOperation"/> </aop:config> <!-- don't forget the DataSource --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@rj-t42:1521:elvis"/> <property name="username" value="scott"/> <property name="password" value="tiger"/> </bean> <!-- similarly, don't forget the PlatformTransactionManager --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean>