测试脚本如下：
1 create table test1 2 ( 3 id int primary key auto_increment, 4 name varchar(20) 5 );
测试代码：
1 package me.gacl.demo;
2
3 import java.sql.Connection;
4 import java.sql.PreparedStatement;
5 import java.sql.ResultSet;
6 import me.gacl.utils.JdbcUtils;
7
8 public class Test {
9 public static void main(String[] args) {
10 Connection conn = null;
11 PreparedStatement st = null;
12 ResultSet rs = null;
13 try{
14 conn = JdbcUtils.getConnection();
15 String sql = "insert into test1(name) values(?)";
16 st = conn.prepareStatement(sql);
17 st.setString(1, "aaa");
18 st.executeUpdate();
19 //获取数据库自动生成的主键
20 rs = st.getGeneratedKeys();
21 if(rs.next()){
22 System.out.println(rs.getInt(1));
23 }
24 }catch (Exception e) {
25 e.printStackTrace();
26 }finally{
27 JdbcUtils.release(conn, st, rs);
28 }
29 }
30 }