스프링의 GeneratedKeyHolder를 쓸수 있나요?

package test.test.test;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.SQLException;

import java.sql.Statement;

import java.util.Locale;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.jdbc.core.PreparedStatementCreator;

import org.springframework.jdbc.core.support.JdbcDaoSupport;

import org.springframework.jdbc.support.GeneratedKeyHolder;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

/**

 * Handles requests for the application home page.

 */

@Controller

public class HomeController extends JdbcDaoSupport {

@Autowired

public void setDataSourceForAutoWire(DataSource ds){

super.setDataSource(ds);

}

/**

* Simply selects the home view to render by returning its name.

*/

@RequestMapping(value = "/", method = RequestMethod.GET)

public String home(Locale locale, Model model) {

GeneratedKeyHolder generatedKeyHolder = new GeneratedKeyHolder();

System.out.println("DB Source obejct check : " + getJdbcTemplate().getDataSource().toString()); 

try{

getJdbcTemplate().update("DROP TABLE test_tbl;");

}catch(Exception e){

//없을수도 있음

}

getJdbcTemplate().update(

"CREATE TABLE test_tbl( " +

"tt_idx INTEGER AUTO_INCREMENT PRIMARY KEY, " +

"tt_str character varying(15) NOT NULL, " +

"tt_dt datetime " +

")"

);

getJdbcTemplate().update(

new PreparedStatementCreator() {

public PreparedStatement createPreparedStatement(Connection con) throws SQLException {

PreparedStatement ps = con.prepareStatement("INSERT INTO test_tbl(" +

"tt_str, " +

"tt_dt" +

") VALUES(" +

"?, " +

"sysdate" +

")",

Statement.RETURN_GENERATED_KEYS

);

ps.setString(1, "test");

return ps;

}

},

generatedKeyHolder

);

System.out.println(generatedKeyHolder.getKey() == null ? "getKey is NULL" : "OK");

System.out.println(generatedKeyHolder.getKeyList().size() == 0 ? "getKeyList is empty" : "OK");

System.out.println(generatedKeyHolder.getKeys() == null ? "getKeys is NULL" : "OK");

return "home";

}

}