springMVC中jdbcTemplate接口类插入记录后得到自动增长的id

package user.jdbctemplate;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Iterator;
import java.util.List;

import javax.sql.DataSource;

import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementCreator;
import org.springframework.jdbc.support.GeneratedKeyHolder;
import org.springframework.jdbc.support.KeyHolder;

//操作用户的接口类
public class userTemplate {
 private JdbcTemplate jdbcTemplate;

 public void setDataSource(DataSource dataSource) {
  jdbcTemplate = new JdbcTemplate(dataSource);
 }

 public int getallCount(String sql) {
  System.out.println(sql);
  int count = 1;
  try {
   count = jdbcTemplate.queryForInt(sql);
  } catch (DataAccessException e) {
   System.out.println("getallCount里面的报错是:" + e);
   return count;
  }
  return count;
 }

 public String saveorupdate(String sql) {
  System.out.println(sql);
  try {
   jdbcTemplate.update(sql);

  } catch (DataAccessException e) {
   System.out.println(e);
   return "returnfail";
  }
  return "returnsuc";
 }

 /*
  * 1.KeyHolder keyHolder = new GeneratedKeyHolder();
  * 2.jdbcTemplate.update(new PreparedStatementCreator() { 3. public
  * PreparedStatement createPreparedStatement(Connection connection) throws
  * SQLException { 4. PreparedStatement ps = connection.prepareStatement( 5.
  * "INSERT INTO Test (id, NAME) VALUES (phoenix_sequence.nextval,?)", new
  * String[] { "ID" }); 6. ps.setString(1, "heipark"); 7. return ps; 8. }
  * 9.}, keyHolder); 10.Long generatedId = keyHolder.getKey().longValue();
  * 11.System.out.println(generatedId);
  */

 /*
  * final String sql =
  * "insert into TAG_INFO(SITE_ID,NAME,CONTENT) values(?,?,'"+content+"')";
  * KeyHolder keyHolder = new GeneratedKeyHolder(); getJdbcTemplate().update(
  * new PreparedStatementCreator() { public PreparedStatement
  * createPreparedStatement(Connection con) throws SQLException {
  * PreparedStatement ps = getJdbcTemplate().getDataSource()
  * .getConnection().prepareStatement(sql,new String[]{ "SITE_ID" ,"NAME"});
  * ps.setString(1, "站点号"); ps.setString(2, "我的名字"); return ps; } },
  * keyHolder); System.out.println("自动插入id============================" +
  * keyHolder.getKey().intValue()); return keyHolder.getKey().intValue();
  */

 public int saveProject(String sql) {
  final String innersql = sql;
  KeyHolder keyHolder = new GeneratedKeyHolder();

  System.out.println(innersql);

  /*
   * System.out.println("插入方案记录,获取当前projectid"); int
   * projectid=jdbcTemplate.update(sql);
   */
  try {
   jdbcTemplate.update(new PreparedStatementCreator() {
    public PreparedStatement createPreparedStatement(Connection con)
      throws SQLException {
     PreparedStatement ps = jdbcTemplate.getDataSource()
       .getConnection().prepareStatement(innersql);
     return ps;
    }
   }, keyHolder);
  } catch (DataAccessException e) {

   e.printStackTrace();
  }
  System.out.println("自动插入id============================"
    + keyHolder.getKey().intValue());
  return keyHolder.getKey().intValue();

 }

 public List findAll(String sql) {
  List rows;
  try {
   rows = jdbcTemplate.queryForList(sql);

  } catch (DataAccessException e) {
   return null;
  }

  Iterator it = rows.iterator();
  if (it.hasNext()) {

   return rows;
  }

  return null;
 }

 public Object findusermoney(String sql) {
  List rows;
  Object money = "0.00";
  try {
   rows = jdbcTemplate.queryForList(sql);
  } catch (DataAccessException e) {
   return null;
  }

  Iterator it = rows.iterator();
  if (it.hasNext()) {
   Object o = rows.get(0);
   System.out.println("用户的余额为:" + money);

   return money;
  }

  return null;
 }

 public String findexistuser(String sql) {
  List rows;
  String returnstr = "returnsuc";
  try {
   rows = jdbcTemplate.queryForList(sql);
  } catch (DataAccessException e) {
   return "fail";
  }

  Iterator it = rows.iterator();
  if (it.hasNext()) {

   return returnstr;
  }

  return "fail";

 }

 public String findexistusername(String sql) {

  List rows;
  String returnstr = "returnsuc";
  try {
   rows = jdbcTemplate.queryForList(sql);
  } catch (DataAccessException e) {
   return "fail";
  }

  Iterator it = rows.iterator();
  if (false == it.hasNext()) {

   return returnstr;
  }

  return "fail";
 }

 public List finduserMoneyByName(String sql) {
  List rows;
  try {
   rows = jdbcTemplate.queryForList(sql);
  } catch (DataAccessException e) {
   return null;
  }

  Iterator it = rows.iterator();
  if (it.hasNext()) {

   return rows;
  }

  return null;
 }

}