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();  
    }  
}

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