JDBC：JDBC快速入门

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

/**
 * JDBC快速入门
 */
public class JDBCQuickStart {

    public static void main(String[] args) throws Exception {
        // 1.注册驱动（mysql8.0）
        // 可省略
//        Class.forName("com.mysql.cj.jdbc.Driver");
        // 2.获取连接
        String url = "jdbc:mysql://127.0.0.1:3306/db1?serverTimezone=UTC&useSSL=false";
        String name = "root";
        String pwd = "123456";
        Connection connection = DriverManager.getConnection(url, name, pwd);
        // 3.定义语句
        String sql = "update account set money = 400 where id = 1";
        // 4.获取执行sql对象
        Statement statement = connection.createStatement();
        // 5.执行sql
        int count = statement.executeUpdate(sql);
        System.out.println(count);

        // 6.释放资源
        statement.close();
        connection.close();

    }

}