【正文】 本科畢業(yè)論文（設(shè)計(jì)）原創(chuàng)性聲明 本人鄭重聲明：所呈交的論文是本人在導(dǎo)師的指導(dǎo)下獨(dú)立進(jìn)行研究所取得的研究成果。 作者簽名： 年 月 日 目 錄 摘要 .................................................................................................................................................... 1 關(guān)鍵詞 ................................................................................................................................................ 1 Abstract ............................................................................................................................................... 1 Key words ........................................................................................................................................... 1 1 緒論 ................................................................................................................................................ 2 選題背景及意義 ................................................................................................................... 2 聊天工具的發(fā)展 ................................................................................................................... 2 即時(shí)通訊軟件 ....................................................................................................................... 3 聊天工具 .............................................................................................................. 3 微信 ........................................................................................................................... 3 陌陌 ........................................................................................................................... 3 FaceBook .................................................................................................................... 3 2 實(shí)現(xiàn)聊天工具的開發(fā)環(huán)境及工具 .................................................................................................... 4 開發(fā)環(huán)境及語言概述 ............................................................................................................ 4 開發(fā)工具概述 ....................................................................................................................... 5 開發(fā)技術(shù) 概述 ....................................................................................................................... 5 Java Socket 技術(shù) .......................................................................................................... 5 TCP 和 UDP ............................................................................................................... 5 客戶端 /服務(wù)端（ Cilent/Server）結(jié)構(gòu) ........................................................................... 5 3 需求分析 ....................................................................................................................................... 6 功能需求 .............................................................................................................................. 6 性能需求 .............................................................................................................................. 7 4 系統(tǒng)設(shè)計(jì) ....................................................................................................................................... 8 系統(tǒng)總體功能概述 ................................................................................................................ 8 各功能模塊的概述 ................................................................................................................ 8 用戶注冊(cè) .................................................................................................................... 8 用戶登錄 .................................................................................................................... 9 公聊 ..........................................................................................................................10 私聊 ..........................................................................................................................10 發(fā)送留言和文件 ......................................................................................................... 11 字體屬性設(shè)置 ............................................................................................................ 11 5 系統(tǒng)實(shí)現(xiàn) ......................................................................................................................................12 注冊(cè)功能實(shí)現(xiàn) ......................................................................................................................12 登錄功能實(shí)現(xiàn) ......................................................................................................................12 公聊功能實(shí)現(xiàn) ......................................................................................................................12 私聊功能實(shí)現(xiàn) ......................................................................................................................13 字體屬性設(shè)置功能實(shí)現(xiàn) ........................................................................................................13 發(fā)送留言和文件 ..................................................................................................................13