基于JAVA的聊天系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn).doc

本科畢業(yè)論文基于JAVA的聊天系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)學(xué)院：機(jī)電工程學(xué)院專業(yè)：學(xué)號(hào)：姓名：指導(dǎo)教師：職稱：論文提交日期：二八年四月摘要隨著互聯(lián)網(wǎng)的快速發(fā)展，網(wǎng)絡(luò)聊天工具已經(jīng)作為一種重要的信息交流工具，受到越來越多的網(wǎng)民的青睞。目前，出現(xiàn)了很多非常不錯(cuò)的聊天工具，其中應(yīng)用比較廣泛的有Netmeeting、騰訊QQ、MSN-Messager等等。該系統(tǒng)開發(fā)主要包括一個(gè)網(wǎng)絡(luò)聊天服務(wù)器程序和一個(gè)網(wǎng)絡(luò)聊天客戶程序兩個(gè)方面。前者通過Socket套接字建立服務(wù)器，服務(wù)器能讀取、轉(zhuǎn)發(fā)客戶端發(fā)來信息，并能刷新用戶列表。后者通過與服務(wù)器建立連接，來進(jìn)行客戶端與客戶端的信息交流。其中用到了局域網(wǎng)通信機(jī)制的原理，通過直接繼承Thread類來建立多線程。開發(fā)中利用了計(jì)算機(jī)網(wǎng)絡(luò)編程的基本理論知識(shí),如TCP/IP協(xié)議、客戶端/服務(wù)器端模式（Client/Server模式）、網(wǎng)絡(luò)編程的設(shè)計(jì)方法等。在網(wǎng)絡(luò)編程中對(duì)信息的讀取、發(fā)送，是利用流來實(shí)現(xiàn)信息的交換，其中介紹了對(duì)實(shí)現(xiàn)一個(gè)系統(tǒng)的信息流的分析，包含了一些基本的軟件工程的方法。經(jīng)過分析這些情況，該局域網(wǎng)聊天工具采用Eclipse為基本開發(fā)環(huán)境和java語言進(jìn)行編寫，首先可在短時(shí)間內(nèi)建立系統(tǒng)應(yīng)用原型，然后，對(duì)初始原型系統(tǒng)進(jìn)行不斷修正和改進(jìn)，直到形成可行系統(tǒng)關(guān)鍵詞：局域網(wǎng)聊天socketjavaAbstractAlongwiththefastdevelopmentofInternet,thenetworkchatingtoolhasalreadybecomeonekindofimportantcommunicationtoolsandreceivedmoreandmorewebcamsfavor.Atpresent,manyextremelygoodchatingtoolshaveappeared.forexample,Netmeeting,QQ,MSN-Messagerandsoon.Thissystemdevelopmentmainlyincludestwoaspectsoftheserverprocedureofthenetworkchatandthecustomerprocedureofthenetworkchat.TheformerestablishestheserverthroughtheSocket,theservercanreadanddelivertheinformationwhichclientsidesends,andcanrenovatetheuserstabulation.Thelattermakeaconnectionwiththeserver,carriesoncommunicationbetweentheclientsideandtheclientside.WiththeLANcorrespondencemechanismprinciple,throughinherittingtheThreadkindtoestablishthemultithreadingdirectly.Inthedevelopment,itusestheelementarytheoryknowledgewhichthecomputernetworkprogrammes.forexample,TCP/IPagreement,Client/Serverpattern,networkprogrammingdesignmethodandsoon.Inthenetworkprogramming,itrealizesreadingandtransmissionoftheinformation,thatis,informatonflowsrealizetheinformationexchange,introduceinformationflowanalysisforrealizingasystem,inwhichcontainessomebasicsoftwareengineeringmethods.Afteranalyzesthesesituations,thisLANchatingtooltakesEclipseasthebasicdevelopmentenvironmentandcompilesinjavalanguage.first,itwillestablishthesystemapplicationprototypeinashorttime.then,fortheinitialprototypesystem,itneedsconstantlyrevisedandimproved,untilaviablesystem.Keywords:LANChatSocketJava目錄1.緒論011.1JAVA的網(wǎng)絡(luò)功能與編程011.1.1JAVA概述021.1.2JAVA的特點(diǎn)041.1.3JAVA語言在網(wǎng)絡(luò)上的應(yīng)用071.2JavaBeans技術(shù)081.3IP/TCP協(xié)議常識(shí)081.4Socket的簡介092.規(guī)劃設(shè)計(jì)112.1課題來源112.2需求分析113.系統(tǒng)分析與設(shè)計(jì)方案123.1聊天系統(tǒng)的總體設(shè)計(jì)要點(diǎn)123.2聊天系統(tǒng)的設(shè)計(jì)