import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

import org.junit.Test;

public class Demo1 {
    private String url = "jdbc:mysql://localhost:3306/tableName";
    private String user = "root";
    private String password = "root";
    @Test
    public void test1(){
        Connection conn = null;
        Statement stmt = null;
        try{
            //1、注册驱动
            Class.forName("com.mysql.jdbc.Driver");
            
            //2、创建连接对象
            conn = DriverManager.getConnection(url, user, password);
            
            //3、创建Statement对象
            stmt = conn.createStatement();
            
            //4、准备sql语句
            String sql = "CREATE TRABLE student(id PRIMARY KEY AUTO_INCREMENT,name VARCHAR(20), gender(2))";
            
            //5、发送sql语句、执行sql语句
            int count = stmt.executeUpdate(sql);
            
            //5、输出
            System.out.println("影响了" + count + "行！");
        }catch(Exception e){
            e.printStackTrace();
            throw new RuntimeException(e);
        }finally{
            //7、关闭连接(顺序：后打开的先关闭)
            if(stmt != null){
                try {
                    stmt.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                    throw new RuntimeException(e);
                }
            }
            if(conn != null){
                try {
                    conn.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                    throw new RuntimeException(e);
                }
            }
            
        }
    }
}