JICQ是用JAVA語言編寫的一個基于客戶機/服務器(C/S)模式的局域短信實時通信工具系統，系統采用了Microsoft公司的SQL Server 2000作為后臺數據庫，系統通過JDBC訪問數據庫。系統分為服務器程序和客戶程序兩部分，服務器與客戶間采用“傳輸控制協議”（TCP），通過套接字（Socket）連接，客戶之間采用“用戶數據報協議”（UDP），通過數據報套接字（DatagramSocket）建立連接。系統具有用戶注冊、用戶登錄、添加好友、刪除好友、發送和接收消息等功能。
The JICQ is the bureau area which JAVA writes according to "Customer s Machine/Server"(C/S) mode message solid hour correspond by letter tool system, the system adopted the SQL Server2000 of Microsoft company as a backstage database, the system passes a JDBC interview database. The system is divided into the server procedure and customer s procedure two parts, server and customer adoption "Transmission Control Protocol"(TCP), connect a word (Socket) conjunction through a set, the adoption "User Datagram Protocol "(UDP) of the customer s, pass a data report a set to connect a word (DatagramSocket) establishment a conjunction. The system has customer registration, customer to register, increase good friend, delete good friend and send out and receive news etc. function.
