License: Apache License 2.0
根据类的功能不同，将相同功能的类放到同一个包中
窗体类————>com.jt.frame包
面板类————>com.jt.panel包
对数据库表操作类————>com.jt.dao包
实体类————>com.jt.po包
工具类(数据库工具类...)————>com.jt.util包
用户表user
排行表rank 主键id(自增)、分数、时间、用户id
创建登录界面的窗体类LoginFrame(com.jt.frame)
设置图标————>Image————>ImageIcon————>getImage()
创建用于获取图片的工具类ImageUtil(com.jt.util)
创建登录界面的面板类LoginPanel(com.jt.panel)
根据用户名及密码对user表查询jdbc
对user表的操作————>UserDao
对rank表的操作————>RankDao
blog地址 https://xubuhui.coding.me/
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