Java Web-订餐系统分享项目 jsp+servlet+java+MySQL+带数据库语法

订餐系统架构

下载源码链接：https://pan.baidu.com/s/1vldCXtOONd3HfY5qBjiTJg
提取码：mf2s

代码实现

package com.orderonline.db;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
 * @author yangxiaoqiang
 * 
 * */
/**数据库连接类*/
public class DBUtil {

	private static final String CLASSNAME = "com.mysql.jdbc.Driver";
	private static final String URL = "jdbc:mysql://localhost:3306/food_db?characterEncoding=utf-8&serverTimezone=GMT";
	private static final String USERNAME = "root";
	priva