纯JDBC操作, 对某些项目来说, 也许更好, Spring JDBC Framework让你不用关心Connection, Statement, ResultSet.定义数据源spring事务编程的例子<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">spring事务编程的例子    <property name="jndiName">spring事务编程的例子        <value>java:/comp/env/jdbc/oracle</value>spring事务编程的例子    </property>spring事务编程的例子</bean>定义事务管理器<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">    <property name="dataSource" ref="dataSource" /></bean>定义daospring事务编程的例子<bean id="customerDAO" class="com.waterye.dao.impl.CustomerDAOImpl">spring事务编程的例子    <property name="dataSource" ref="dataSource" />spring事务编程的例子    <property name="transactionManager" ref="transactionManager" />spring事务编程的例子</bean>public class CustomerDaoImpl extends JdbcDaoSupport implements CustomerDAO {    private DataSource dataSource;     pirvate TransactionManager transactionManager;    public void setDataSource(DataSource dataSource) {        this.dataSource = dataSource;    }    public void setTransactionManager(DataSourceTransactionManager transactionManager) {        this.transactionManager = transactionManager;    }     public Map get(Integer id) throws Exception {        String querySql = "select * from customer where id = ?";        return getJdbcTemplate().queryForMap(querySql, new Object[] { id });     }    public void insert(final Map customer) throws Exception {        String seqSql = "select customer_seql.nextval from dual";         String insertSql = "insert into customer (id, code, name, status) values (?, ?, ?, ?)";                TransactionTemplate transactionTemplate = new TransactionTemplate(transactionManager);        transactionTemplate.execute(new TransactionCallbackWithoutResult() {             protected void doInTransactionWithoutResult(TransactionStatus status) {                 JdbcTemplate jdbcTemplate = getJdbcTemplate();                int id = jdbcTemplate.queryForInt(seqSql);                Object[] params = new Object[] { new Integer(id), customer.get("code"), customer.get("name"), map.get("status") };                jdbcTemplate.update(insertSql, params);            }        }    }    public void update(final Map customer) throws Exception {        //      }    public void delete(Integer id) throws Exception {        String deleteSql = "delete from customer where id = ?";        TransactionTemplate transactionTemplate = new TransactionTemplate(transactionManager);        transactionTemplate.execute(new TransactionCallbackWithoutResult() {             protected void doInTransactionWithoutResult(TransactionStatus status) {                 getJdbcTemplate().update(deleteSql, new Object[] { id });            }        }    }    public List findValidCustomers() throws Exception {        String querySql = "select * from customer where status = ‘valid‘ order by code";        return getJdbcTemplate().query(querySql, new OracleColumnMapRowMapper());     }}