package com.itheima.jdbc;//jdbc
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
public class JDBCDemo {
public static void main(String[] args) throws Exception {
//注册驱动
Class.forName("com.mysql.jdbc.Driver");
//获取链接
String url = "jdbc:mysql://127.0.0.1:3306/db2";
String username = "root";
String password = "123456";
Connection conn = DriverManager.getConnection(url,username,password);
//定义sql语句
String sql = "update jdbc set name = '张三' where id = 1 ";
//获取执行的对象 Statement
Statement stmt = conn.createStatement();
//执行sql
int count = stmt.executeUpdate(sql);
//处理结果
System.out.println(count);
//释放资源
stmt.close();
conn.close();
}
}