适合配合学习使用的JAVA源代码 I/O，GUI，servlet,socket等-Suitable for use with the learning JAVA source code for I/O, GUI, servlet, socket, etc.

将socket封装,模拟简易web服务器,(Will be simulated socket encapsulation, simple web server,)

1.进行ini、properties、xml文件的读写操作 2.模拟ATM进行账号的登录校验、余额查询、详细账单 3.数据库采用mysql (三张数据表 customer account detail) 4.将系统分割为C/S系统，利用socket编程(1. Ini, properties, xml file read and write operations 2. Simulate ATM for account login verification, balance query, d