【正文】 1 摘 要 Inter 的出現(xiàn)，不僅為人類提供了信息交流的新技術(shù)、新方法和新媒體，而且為人類提供了新的開放式的交流平臺，開創(chuàng)了新的生活方式。而互聯(lián)網(wǎng)的普及使得一種新的“即時通訊工具”成為了人們使用頻率最高、最為流行的通訊工具，它的發(fā)展也隨著信息技術(shù)的發(fā)展日益成熟和完善，它不僅提供了人際交往的新方式，加快了聯(lián)系的速度，降低的交往的成本，提高了交往的效率，而且使人際交往從個人所熟悉的強聯(lián)系人群，延伸到了原本遙遠、陌生的弱聯(lián)系人群。 作為一種便捷的網(wǎng)絡(luò)通訊技術(shù)，即時通訊軟件已經(jīng)越來越深入人心，應(yīng)用范圍從單純的網(wǎng)絡(luò)聊天工具變成工作生活所不 可或缺的信息交流平臺。正因為它的重要性，找出其存在的問題和其自身的局限性，顯得尤為迫切。根據(jù) 大量文獻總結(jié)和對實際情況調(diào)查，從兩方面進行了詳細的闡述：一方面目前的 IM 軟件基本上都集中在 MS Windows 平臺上，很少考慮智能手持設(shè)備終端用戶的需求；另一方面各個商業(yè)軟件使用各自的私有的 IM協(xié)議，使得各個 IM 之間不能互相通訊，這給 IM 應(yīng)用的普及帶來了不便。 因此如果能將網(wǎng)絡(luò)即時通訊軟件引入 Android 操作系統(tǒng)并能夠解決軟件的互通，對 Android 系統(tǒng)和即時通訊軟件普及有重要意義。通過分析和研究即時通訊模型，并對當(dāng)前幾種流行的即時通訊協(xié)議的對比，決定采用基于 XML 的 Http 協(xié)議，同時對服務(wù)器的通信方式、連接方式和服務(wù)模式做出了選擇。 （ 摘要還要寫自己在什么開發(fā)平臺上，用什么開發(fā)工具，開發(fā)語言，做了什么事情（軟件工程的分析，設(shè)計，實現(xiàn)）？，結(jié)果怎么樣？效果怎么樣？有什么特色？特點？ 關(guān)鍵詞：即時通訊、 Android、 XML 2 Abstract Today， instant message（ IM） have bee an essential tool for each person on the overes the traditional interpersonal space time constraint, expand the exchanging space and means between people. However, its rapid development has greatly changed understanding, the way of people’s exchanges and emotion, which lets some relationships in real time bee virtual and indirect, enables the practical skills of people to drop in, and also makes people’s mental problems emerge, such as loneliness and indifference, trust crisis and so on. All of this makes the relationships that seem to get closer and closer under the influence of the Inter bee more distant, lack of mutual understanding, and be on the alert between people. So the study for the Instant messaging to the impact of interpersonal relationships has important practical significance, and attracts increasing attention. As a kind of convenient socket munication technique, instant messaging software has deep into people’s heart, application range from single work chat tool to information munication platform. Due to importance, finding out exiting problems and localization seems especially imperious. According to a mount of literature summary and survey to practical situation, two facets are set forth as follows:First: at present, IM software centralizes under the MS Window platform on the whole, not taking int account the need of users who apply intelligence support facility。 Second: All kinds of business software make use of each private protocol, so as not to 3 munication among them, and this bring it inconvenience in the spread of application. So if work IM is imported Android and settle intermunication of them, not only this makes up for lack of inter applications on Android, but also boostes the spread of Android and IM software. Over analysis and inverstigation of IM model, constrast with a few of prevalent protocols, The author decides to apply Http based on XML, puts forward a good expansibility of work software frame, make choice of munication mode、 connect mode and serve mode. Keywords： Instant message、 Android、 XML 4 目 錄 摘 要 ............................................................................................................................. 1 Abstract ............................................................................................................................ 2 第一章 緒 論 ................................................................................................................. 5 即時通訊的概念 ............................................................................................... 5 即時通訊的國內(nèi)外發(fā)展狀況 ............................................................................ 6 課題研究內(nèi)容 ................................................................................................... 7 第二章 即時通訊系統(tǒng)分析與設(shè)計 ................................................................................. 8 需求分析 .......................................................................................................... 9 功能需求 ............................................................................................... 9 概要設(shè)計 ........................................................................................................ 11 系統(tǒng)框架設(shè)計 ...................................................................................... 11 功能設(shè)計 ............................................................................................. 13 數(shù)據(jù)庫設(shè)計 .................................................................................................... 17 第三章 系統(tǒng)客戶端、服務(wù)器開發(fā)平臺搭建 ................................................................ 19 系統(tǒng)客戶端開發(fā)平臺搭建 .............................................................................. 19 開發(fā) Android 程序軟件需求 ............................................................... 19 開發(fā) Android 程序硬件最低需求 ....................................................... 19 JDK 的安裝 .......................................................................................... 19 Android 開發(fā)環(huán)境的安裝 .................................................................... 21 安裝 Eclipse 插件 ADT ....................................................................... 23 系統(tǒng)服務(wù)器開發(fā)平臺搭建 .............................................................................. 24 第四章 系統(tǒng)客戶端設(shè)計與實現(xiàn) ................................................................................... 25 Android 系統(tǒng)簡介 .......................................................................................... 25 客戶端使用到的接口介紹 .............................................................................. 28 客戶端實現(xiàn) .................................................................................................... 31 用戶注冊模塊實現(xiàn) .............................................................................. 31 用戶登錄模塊實現(xiàn) .............................................................................. 33 刷新好友列表模塊 實現(xiàn) ......................................