我正在尝试在我的 Spring JdbcDaoSupport 类中创建一个“从插入中选择”，并且无法弄清楚如何从选择语句中获取数据并将其返回。
我的 EventJdbcTemplate（我的 DaoImpl）：
@Service
public class EventJdbcTemplate extends JdbcDaoSupport implements EventDao {
private static final Logger LOGGER = Logger.getLogger(EventJdbcTemplate.class);
private static final String SQL_INSERT_EVENT = "SELECT EVENT_ID FROM FINAL TABLE " +
"(INSERT INTO EBT10DBB.SB0401T0 (EVENT_NAME, HOST_NAME, USER_ID) " +
"VALUES(?, ?, \'EMP0321\'))";
@Autowired
public EventJdbcTemplate(DataSource pDataSource) {
super.setDataSource(pDataSource);
}
@Override
public Integer createEvent(EventBean pEventBean) { //(Integer id, String eventName)
if (LOGGER.isTraceEnabled()) {
LOGGER.trace("Entering create(Event event) of EventJDBCTemplate.");
}
// This SQL works, but is for an INSERT only.
/*this.getJdbcTemplate().query(SQL_INSERT_EVENT, new Object[]{
pEventBean.getEventName(),
pEventBean.getHostName()
});*/
final List eventList = this.getJdbcTemplate().query(SQL_INSERT_EVENT, new Object[]{
pEventBean.getEventName(),
pEventBean.getHostName()
}, new EventRowMapper()
);
Event event = null;
for (int i = 0; i < eventList.size(); i++) {
event = (Event)eventList.get(i);
}
if (LOGGER.isTraceEnabled()) {
LOGGER.trace("Exiting create(Event event) of EventJDBCTemplate.");
}
//return statement -- should return either the entire "pEventBean", or
//just the unique key, "EVENT_ID".
return event.getId();
}
EventRowMapper 类（不确定我是否需要这个来进行选择）：
public class EventRowMapper implements RowMapper<Event> {
@Override
public Event mapRow(ResultSet rs, int rowNum) throws SQLException {
final EventBuilder event = new EventImpl.EventBuilder();
event.setId(rs.getInt("EVENT_ID"));
event.setEventName("EVENT_NAME");
event.setHostName("HOST_NAME");
return event.build();
}
}
所以我的目标是返回一个整数值，它是从 INSERT SQL 创建的唯一键 (EVENT_ID)。