本系统采用JAVA作为前台软件开发工具，后台数据库选用Oracle 10数据库进行支持，实现了房产销售管理的自动化和信息化。工程下面建立五个包: (1)Biz包(业务逻辑包) (2)Dal包(数据处理包) (3)Model包(模型包) (4)Util包(助手包): (5)Web包(控制包): -The system uses JAVA as front software development tools, Oracle 10 database back-end data

Flex 处理Json格式数据的核心包，可用于回调函数中对后台返回数据进行json解析。-Flex core packet processing Json format data can be used for json parsing callback function to return data in the background.

用JAVA编写的web服务器，能实现基本的数据处理功能，供大家理解数据包的打包与发送的原理-The principle of web server written in JAVA, can achieve the basic data processing functions for us to understand the packing and sending of the packet

Data packet transfer source program, Multirate signal processing, It contains positional PID algorithm, integral separate PID.