在applicationContext.xml中对spring事务经行引用首先引入以下几个包

• ojdbc.jar
• spring-jdbc.jar
• spring-tx.jar
• commons-dbcp.jar
• commons-pool.jar
• aopalliance.jar

然后在applicationContext.xml中经行以下的配置

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--配置数据库相关-事务-->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="url" value="jdbc:mysql://localhost:3306/test?characterEncoding=utf8"></property>
        <property name="username" value="root"></property>
        <property name="password" value="123"></property>

    </bean>
    <!-- 配置事务管理器“txManger"-->
    <bean id="txManger" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"></property>
        </bean>
    <!--增加对事务的支持-核心-->
    <tx:annotation-driven transaction-manager="txManger"></tx:annotation-driven>
</beans>

其中dataSource的属性比较重要其链接

下面这个为如何使用spring对数据库进行连接的简单模板(大致内容同Java jdbc相类似)

   public static void main(String[] args) {
        ApplicationContext context=new FileSystemXmlApplicationContext("H:\\spring-jdbc\\src\\applicationContext.xml");
        DataSource dataSource= (DataSource) context.getBean("dataSource");
        try {
            Connection connection=dataSource.getConnection();
            String spl="SELECT *from school_student";
            PreparedStatement preparedStatement = connection.prepareStatement(spl)；
            ResultSet resultSet=preparedStatement.executeQuery();
            while (resultSet.next()){
                System.out.println(resultSet.getObject(1));
            }


        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

java xml事务配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd  http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="oracle.jdbc.OracleDriver"></property>
        <property name="url" value="jdbc:oracle:thin:@localhost:1521:xe"></property>
        <property name="username" value="hr"></property>
        <property name="password" value="123"></property>
</bean>
        <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
                <property name="dataSource" ref="dataSource"></property>
        </bean>

        <!--开启组件扫描-->

        <!--配置事务管理器-->
        <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                <property name="dataSource" ref="dataSource"></property>
        </bean>
       <!-- 配置事务增强-->
        <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">
                <!--配置以什么开头所需要的操作 -->
                <tx:attributes>
                        <tx:method name="get*" read-only="true" />
                        <tx:method name="find*" read-only="true" />
                        <tx:method name="*" read-only="false" />
                </tx:attributes>
        </tx:advice>

       <!--配置事务的切面-->

        <aop:config>
                <aop:pointcut expression="execution(* Service.*.*(..))"
                              id="pt" />
                <aop:advisor advice-ref="txAdvice" pointcut-ref="pt" />
        </aop:config>

        <context:component-scan base-package="transcactionManagers,Service,dao"></context:component-scan>

</beans>

注解事务的话就

<tx:annotation-driven transaction-manager="dataSourceTransactionManager"></tx:annotation-driven>

后在所需要的类上添加@Transactional注解即可
@Transactional注解：
1）应用事务的注解
2）定义到方法上： 当前方法应用spring的声明式事务
3）定义到类上： 当前类的所有的方法都应用Spring声明式事务管理;
4）定义到父类上： 当执行父类的方法时候应用事务。