package chapter10; import java.sql.Connection; import java.sql.Statement; import java.sql.DriverManager; public class Example02 { public static void main(String[] args) { try { // 1. 加载驱动 Class.forName("com.mysql.cj.jdbc.Driver"); // 2. 准备连接参数 String url = "jdbc:mysql://localhost:3306/school?characterEncoding=utf-8&useSSL=false&serverTimezone=UTC"; String username = "root"; String password = "root"; // 使用try-with-resources自动关闭资源 try ( Connection connection = DriverManager.getConnection(url, username, password); Statement statement = connection.createStatement() ) { // 准备INSERT语句 String sql = "INSERT INTO student (name, age, gender, class, score) " + "VALUES ('小张', 19, 'M', '计算机1班', 88.5)"; // 执行INSERT语句 int rows = statement.executeUpdate(sql); // 输出受影响的行数 System.out.println("成功插入 " + rows + " 条数据"); } } catch (Exception e) { e.printStackTrace(); } } }