java-database-1

Matching environment

Step 1: Download the package: Link: https://pan.baidu.com/s/1puGWFgZJde3KapUQiOgqsA Extraction code: 6v9d After copying this content, open the Baidu Netdisk mobile app, the operation is more convenient.
Step 2: Reference the package
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package mysql_1;

import java.sql.*;

public class mysql_01 {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
		try {
			Class.forName("com.mysql.cj.jdbc.Driver");//每个人的不是从我这里下载的jar包可能不同,可能为com.mysql.jdbc.Driver
			//这个是在mysql默认的是3306端口和有一个自己创建的名字为Java的数据库
			String URL = "jdbc:mysql://localhost:3306/java?serverTimezone=UTC&characterEncoding=utf-8"; // 连接MySQL数据库的路径
			String USERNAME = "root"; // 连接MySQL数据库的用户名
			String PASSWORD = "root"; // 连接MySQL数据库的密码
			Connection con = DriverManager.getConnection(URL, USERNAME, PASSWORD); // 初始化连接MySQL数据库的对象1
			System.out.print(con);
			con.close();
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			e.printStackTrace();
		}

	}

}

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The next blog is specifically about the use of databases

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Origin blog.csdn.net/huiguo_/article/details/108965041