Class.forName("com.mysql.cj.jdbc.Driver");
DriverManager.getConnection("jdbc:mysql://localhost:3306/java?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC", "root", "passwd");
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8" import="java.sql.*"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>jdbc</title> </head> <body> <% Connection conn = null; PreparedStatement ps = null; ResultSet rs = null; int age = -1; String name = null; int id = -1; try{ Class.forName("com.mysql.cj.jdbc.Driver"); }catch (Exception e){ out.print("连接失败"); } try{ conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/java?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC", "root", "1"); out.print("连接成功"); ps = conn.prepareStatement("select * from name "); rs = ps.executeQuery(); while (rs.next()){ age = rs.getInt("age"); name = rs.getString("name"); out.print("<br>" + "age:" + age + " "+ "name:" + name); } }catch (SQLException e){ out.println(e.getMessage()); out.println(e.getSQLState()); out.println(e.getErrorCode()); } %> </body> </html>
原文：https://www.cnblogs.com/xzk666/p/10879713.html