MartinDong

package tk.dhy.util;import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;import java.sql.Statement;public class JDBC { // 连接 private static Connection connec

package project02_Order_management.dao;import java.lang.reflect.Field;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;import java.sql.Connection;import java.sq