【正文】 本科畢業(yè)設計（論文） 即時通信軟件的開發(fā)與設計 攀枝花學院本科畢業(yè)設計（論文） 摘要 I 摘 要 隨著計算機互聯(lián)網(wǎng)技術(shù)的不斷發(fā)展，國家對互聯(lián)網(wǎng)的不斷重視，各種各樣的社交軟件層出不窮， 使用通信軟件交流成為了人們生活中必不可少的一部分。即時通訊工具作為未來跨越互聯(lián)網(wǎng)與移動互聯(lián)網(wǎng)的業(yè)務，其發(fā)展的潛力是十分巨大的，同時，其商業(yè)模式的發(fā)展將是未來要關(guān)注的焦點。免費與收費相結(jié)合的發(fā)展策略將是 IM 的主要發(fā)展模式。 本論文實現(xiàn)一個運行于 windows 平臺的基于局域網(wǎng)的即時聊天系統(tǒng)。該聊天軟件包括服務器端和客戶端兩個模 塊，客戶端向服務器端發(fā)送服務請求服務器端向客戶端提供相應的服務?？蛻舳酥饕獙崿F(xiàn)用戶登錄、注冊、聊天等功能。該軟件采用多線程技術(shù)、 tcp 通信技術(shù)、 udp 通信技術(shù)，并在傳輸數(shù)據(jù)時對消息實現(xiàn)序列化和數(shù)據(jù)的還原。 該軟件能實現(xiàn)企業(yè)員工內(nèi)部聊天交流，避免企業(yè)內(nèi)部員工使用類似 等軟件泄露內(nèi)部信息，但是該軟件只實現(xiàn)了登錄、注冊、聊天等基本功能，還有很多不足之處需要改進。 關(guān)鍵字 客戶端 ,服務器 ,c/s,即時通信 ,套接字 . 攀枝花學院本科畢業(yè)設計（論文） ABSTRACT II ABSTRACT With the continuous development of puter technology, the Inter, the state continues to pay attention to the Inter, a variety of social software after another, using munication software exchange has bee an indispensable part of people39。s lives. Instant messaging as the future across the Inter and mobile Inter business, its development potential is enormous, while the development of its business model will be the focus of the future to pay attention. Free and fee development strategy will be a bination of IM39。s main development model. In this paper, the realization of a run on LANbased instant messaging system windows platform. The chat software includes server and client of two modules, the client sends a service request to the server to the client to provide appropriate services to the server. Client main implement user login, registration, chat and other functions. The software uses multithreading technology, tcp munication technology, udp munications technology, and in the transmission of data to achieve reduction message serialization and data. The software enables employees chat internal munication and to avoid internal staff use similar software leaked inside information, but the software only to realize the login, registration, chat, and other basic functions, there are many deficiencies need to be improved. Keywords client, server, c / s, instant messaging, sockets 攀枝花學院本科畢業(yè)設計（論文） 目錄 目 錄 摘要 ......................................................................................................................................... I ABSTRACT ...............................................................................................................................II 1 前言 .................................................................................................................................. 1 課題背景及意義 .......................................................................................................... 1 國內(nèi)現(xiàn)狀及發(fā)展趨勢 ................................................................................................... 1 現(xiàn)行系統(tǒng)的不足 .......................................................................................................... 2 解決方案 .................................................................................................................... 2 2 系統(tǒng)開發(fā)關(guān)鍵技術(shù)及開發(fā)環(huán)境 ..................................................................................... 3 qt 及 qtcreator 開發(fā)環(huán)境 .......................................................................................... 3 qt 簡介 ............................................................................................................ 3 Qt Creator 簡介 .............................................................................................. 3 mysql 數(shù)據(jù)庫介紹 ...................................................................................................... 4 socket 套接字介紹 ..................................................................................................... 5 IP .............................................................................................................................. 5 TCP ............................................................................................................................ 6 udp 協(xié)議簡介 ............................................................................................................. 6 c/s 模式介紹 ............................................................................................................ 7 多線程技術(shù)介紹 .......................................................................................................... 8 .......................................................................................................................... 10 系統(tǒng)分析 .................................................................................................................. 10 功能需求分析 ................................................................................................ 10 性能需求分析 ................................................................................................ 11 數(shù)據(jù)需求分析 ................................................................................................ 11 系統(tǒng)設計 .................................................................................................................. 13 工作流程 ........................................................................................................ 13 服務器設計 .................................................................................................... 13 客戶端設計 .................................................................................................... 14 4 系統(tǒng)關(guān)鍵技術(shù)實現(xiàn) ......................................................................................................... 15 服務器實現(xiàn) ............................................................................................................... 15 客戶端實現(xiàn) ............................................................................................................... 18