java编写创建数据库和表的程序

import java.sql.*; 
 
public class Test 
{ 
 public static void main(String[] args) throws Exception 
 { 
 Class.forName("com.mysql.jdbc.Driver"); 
 
 //一开始必须填一个已经存在的数据库 
 String url = "jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8"; 
 Connection conn = DriverManager.getConnection(url, "root", "123456"); 
 Statement stat = conn.createStatement(); 
 
 //创建数据库hello 
 stat.executeUpdate("create database hello"); 
 
 //打开创建的数据库 
 stat.close(); 
 conn.close(); 
 url = "jdbc:mysql://localhost:3306/hello?useUnicode=true&characterEncoding=utf-8"; 
 conn = DriverManager.getConnection(url, "root", "123456"); 
 stat = conn.createStatement(); 
 
 //创建表test 
 stat.executeUpdate("create table test(id int, name varchar(80))"); 
 
 //添加数据 
 stat.executeUpdate("insert into test values(1, '张三')"); 
 stat.executeUpdate("insert into test values(2, '李四')"); 
 
 //查询数据 
 ResultSet result = stat.executeQuery("select * from test"); 
 while (result.next()) 
 { 
 System.out.println(result.getInt("id") + " " + result.getString("name")); 
 } 
 
 //关闭数据库 
 result.close(); 
 stat.close(); 
 conn.close(); 
 } 
}