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<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62553c13b744eb386fdc3502/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">武汉理工大学</div><div class="t m0 x1 h2 y2 ff1 fs0 fc0 sc0 ls0 ws0">硕士学位论文</div><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0">基于XMPP的企业级即时通信系统的研究与实现</div><div class="t m0 x3 h2 y4 ff1 fs0 fc0 sc0 ls0 ws0">姓名:陈武</div><div class="t m0 x4 h2 y5 ff1 fs0 fc0 sc0 ls0 ws0">申请学位级别:硕士</div><div class="t m0 x5 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">专业:计算机应用技术</div><div class="t m0 x6 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">指导教师:熊盛武;杨世达</div><div class="t m0 x7 h2 y8 ff1 fs0 fc0 sc0 ls0 ws0">20090401</div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
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<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62553c13b744eb386fdc3502/bg2.jpg"><div class="t m1 x7 h3 y9 ff2 fs1 fc0 sc0 ls0 ws0"><span class="fc1 sc0">中文摘要</span></div><div class="t m2 x8 h4 ya ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">随着信息技术和I列络通信技术的发展,即时通信系统的应用也得到了飞速</span></div><div class="t m3 x9 h4 yb ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">的发展,比较典蜃!的有QQ、MSN,它们的出{现使得在以网络为载体的新世纪出</span></div><div class="t m4 xa h4 yc ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">现了一种全新的交流方式,它极大地提高了人们交流的效率同时降低了交流的</span></div><div class="t m5 xa h4 yd ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">成本,但是现舀:的符个即时通信系统采用了锌自不同的协议,使得不同系统用</span></div><div class="t m6 xa h4 ye ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">户之间无法交流,XMPP(Extensible</span></div><div class="t m7 xb h5 yf ff2 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Messaging</span></div><div class="t m8 xc h6 y10 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m9 xd h6 y11 ff2 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Presence</span></div><div class="t ma xe h4 yf ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Protoc01)协议的出现</span></div><div class="t mb xa h4 y12 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">解决了这~难题。</span></div><div class="t mc x8 h4 y13 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Jabber/XMPP是一个由开源组织制定的、桀j二XML语言的协议,其丌放特</span></div><div class="t md xa h4 y14 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">性使丌发者之f【|J</span></div><div class="t me xf h4 y14 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ur以叵卡l{竞争,促进了即时通信领域技术的进步与发展,同时</span></div><div class="t m3 xa h4 y15 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">改变了以往的即时通信系统之间无法互联的状7兑。由于Jabber/XMPP系统采用</span></div><div class="t mf x9 h4 y16 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">了分布式的结构和模块化的系统架构,因此很容易对系统的功能进行扩展。讵</span></div><div class="t m10 xa h7 y17 ff2 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">是基于以上优点,基于XMPP协议的即时通信系统成为企业信息化过程中必不</span></div><div class="t m11 xa h4 y18 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">可少的一部分。</span></div><div class="t m12 x8 h4 y19 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">论文包括以下主要内容:</span></div><div class="t m13 x10 h4 y1a ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">1.介绍了XMPP协议的相关知识,并列出该协议的详细流程。</span></div><div class="t m14 x8 h4 y1b ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">2.详细分析了该企、l匕级即时通信系统系统需求,根据系统的设计原则和功</span></div><div class="t m15 xa h4 y1c ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">能目标进行总体架构,给出了系统的总体设计和功能模块的划分。</span></div><div class="t mc x8 h4 y1d ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">3.根据系统的设计原则,结合开源的协议包smack,实现了该系统需求中</span></div><div class="t mb xa h4 y1e ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">要求实现的功能。</span></div><div class="t m16 x8 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">论文的重点之处在.j:通过开源协议的实现,构建出适合中国国情的食业级</span></div><div class="t m17 x9 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">即时通信系统架构,并将其运用于实践中。实践表明,该整合框架功能强大、</span></div><div class="t mf xa h4 y21 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">耦合度低,增强了系统的可维护性和可扩展性,达到了即时通信系统的设计目</span></div><div class="t m18 xa h4 y22 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">标。</span></div><div class="t m19 xa h4 y23 ff2 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">关键字:XMPP,smack,企业级,XML,即时通信系统</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62553c13b744eb386fdc3502/bg3.jpg"><div class="t m1a x11 h6 y24 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Abstract</span></div><div class="t m1b x10 h4 y25 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">With</span></div><div class="t m1c x12 h6 y25 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m1d x13 h5 y26 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">development</span></div><div class="t m9 x14 h6 y27 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m1e x15 h6 y27 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">information</span></div><div class="t m8 x16 h6 y27 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m1f x17 h6 y27 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">network</span></div><div class="t m20 x18 h6 y27 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">communication</span></div><div class="t m21 x19 h6 y28 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">technology,</span></div><div class="t m22 x9 h6 y29 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m23 x1a h6 y2a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m24 x1b h5 y2b ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m25 x1c h6 y2c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">have</span></div><div class="t m21 x3 h6 y2c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">also</span></div><div class="t m26 x1d h6 y29 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">developed</span></div><div class="t m27 x1e h6 y29 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">rapidly,such</span></div><div class="t m28 x1f h8 y2c ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">as</span></div><div class="t m7 x20 h4 y2d ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">QQ,MSN,the</span></div><div class="t m29 x9 h6 y2e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">emergence</span></div><div class="t m9 x21 h6 y2f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m22 x22 h6 y2f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m7 x23 h5 y30 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m2a x24 h6 y2f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m9 x25 h9 y31 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">created</span></div><div class="t m2b x26 h8 y31 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">a</span></div><div class="t m2c x27 h6 y31 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">new</span></div><div class="t m25 x28 h6 y2f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">exchange</span></div><div class="t m2d x29 h6 y32 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">method</span></div><div class="t m0 x2a h6 y32 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">in</span></div><div class="t m1c x2b h6 y32 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m28 x2c h6 y32 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">new</span></div><div class="t m2e x9 h6 y11 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">century</span></div><div class="t m2f x2d h6 y33 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">which</span></div><div class="t m28 x2e h6 y34 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m2b x2f h8 y34 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">on</span></div><div class="t m1c x30 h6 y34 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m22 x31 h6 y35 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">cartier</span></div><div class="t m9 x32 h6 y35 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m30 x33 h6 y35 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">network.The</span></div><div class="t m22 x34 h6 y35 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m23 x35 h6 y34 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m21 x36 h5 y34 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m31 x9 h5 y36 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">improved</span></div><div class="t m1c x37 h6 y37 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m32 x38 h4 y38 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">efficiency</span></div><div class="t m8 x39 h6 y39 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m1f x1c h6 y3a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">reduced</span></div><div class="t m1c x3a h6 y3a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m2a x3b h9 y3a ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">cost</span></div><div class="t m33 x3c h6 y37 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">greatly</span></div><div class="t m34 x3d h6 y3a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">when</span></div><div class="t m9 x3e h6 y37 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">people</span></div><div class="t m35 x3f h6 y3a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">communicate</span></div><div class="t m9 x40 h6 y3b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">with</span></div><div class="t m9 x9 h6 y3c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">each</span></div><div class="t m36 x41 h6 y3c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">other.but</span></div><div class="t m1c xf h6 y3d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m37 x2f h6 y3d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">various</span></div><div class="t m22 x42 h6 y3e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m38 x43 h6 y3c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m21 x44 h5 y3c ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m2d x45 h6 y3e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">were</span></div><div class="t m39 x1f h6 y3f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">based</span></div><div class="t m2b x46 h8 y3f ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">on</span></div><div class="t m3a x47 h6 y3f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">different</span></div><div class="t m27 x9 h6 y40 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">protocols,SO</span></div><div class="t m3b x48 h6 y41 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">that</span></div><div class="t m1c x49 h6 y41 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m3c x4a h8 y41 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">users</span></div><div class="t m39 x42 h6 y42 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">could</span></div><div class="t m2a x4b h9 y42 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">not</span></div><div class="t m3d x4c h6 y42 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">communicate</span></div><div class="t m9 x4d h6 y42 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">with</span><span class="_ _0"> </span><span class="fc1 sc0">each</span></div><div class="t m3e x4e h6 y43 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">other</span></div><div class="t m2d x4f h6 y41 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">by</span></div><div class="t m22 x50 h6 y43 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m3f x51 h6 y44 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m1c x21 h6 y45 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems,this</span></div><div class="t m40 x52 h6 y45 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">problem</span></div><div class="t m41 x3 h6 y46 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m42 x53 h6 y46 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">solved</span></div><div class="t m2d x54 h6 y47 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">by</span></div><div class="t m43 x44 h4 y48 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">XMPP(Extensible</span></div><div class="t m7 x55 h5 y48 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Messaging</span></div><div class="t m8 x56 h6 y49 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m1a x51 h6 y4a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Presence</span></div><div class="t m44 x57 h4 y4b ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Protoc01).</span></div><div class="t m45 x58 h4 y4c ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Jabber/XMPP</span></div><div class="t m2f x59 h6 y4d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">which</span></div><div class="t m28 x5a h6 y4d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m39 x5b h6 y4d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">based</span></div><div class="t m46 x5c h8 y4e ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">on</span></div><div class="t m47 x5d h4 y4e ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">XML</span></div><div class="t m28 x5e h6 y4e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m38 x5f h6 y4c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">developed</span></div><div class="t m2d x60 h6 y4d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">by</span></div><div class="t m28 x20 h8 y4f ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">an</span></div><div class="t m25 x61 h6 y4d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">open</span></div><div class="t m48 x62 h8 y4f ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">source</span></div><div class="t m49 x51 h6 y50 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">organization.The</span></div><div class="t m7 x49 h5 y51 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">emergence</span></div><div class="t m9 x63 h6 y52 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m4a x64 h5 y52 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Jabber/XMPP</span></div><div class="t m42 x65 h6 y52 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">leaded</span></div><div class="t m33 x66 h9 y53 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">to</span></div><div class="t m1c x67 h6 y52 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m4b x29 h6 y54 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">public</span></div><div class="t m4c x68 h6 y55 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">competition</span></div><div class="t m4d x51 h6 y56 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">between</span></div><div class="t m4e x69 h6 y57 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">developers</span></div><div class="t m8 x6a h6 y58 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m4f x6b h6 y57 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">promoted</span></div><div class="t m1c x6c h6 y58 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m50 x5c h6 y56 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">development</span></div><div class="t m0 x6d h6 y59 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">in</span></div><div class="t m1c x6e h6 y59 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t ma x45 h6 y59 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">field</span></div><div class="t m9 x6f h6 y5a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m22 x70 h6 y5a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m7 x4f h5 y58 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m51 x51 h6 y5b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">technology.It</span></div><div class="t m21 x2e h6 y5c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">also</span></div><div class="t m40 x2f h6 y5d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">changed</span></div><div class="t m1c x71 h6 y5c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m3a x72 h6 y5c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">situation</span></div><div class="t m3b x73 h6 y5e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">that</span></div><div class="t m52 x1e h4 y5e ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m7 x3e h5 y5f ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m21 x74 h5 y5c ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m1b x75 h9 y60 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">can’t</span></div><div class="t m53 x51 h5 y61 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">communicate</span></div><div class="t m22 x13 h5 y62 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">with</span></div><div class="t m9 x49 h6 y62 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">each</span></div><div class="t m54 x52 h6 y62 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">other.It</span></div><div class="t m28 x76 h6 y62 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m55 x77 h6 y63 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">easy</span></div><div class="t m33 x78 h9 y64 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">to</span></div><div class="t m9 x79 h6 y64 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">extend</span></div><div class="t m1c x5f h6 y64 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m56 x7a h6 y64 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">functions</span></div><div class="t m9 x7b h6 y65 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m57 x7c h5 y65 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Jabber/XMPP</span></div><div class="t m58 x7d h6 y66 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">svstems,because</span></div><div class="t m57 x7e h5 y67 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Jabber/XMPP</span></div><div class="t m2a x7f h6 y66 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m25 x3b h6 y68 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">were</span></div><div class="t m39 x54 h6 y68 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">based</span></div><div class="t m2b x80 h8 y68 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">on</span><span class="_ _1"> </span><span class="fc1 sc0">a</span></div><div class="t m59 x66 h6 y68 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">distributed</span></div><div class="t m21 x81 h6 y69 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">architecture</span></div><div class="t m5a x82 h4 y69 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m37 x51 h5 y6a ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">modular</span></div><div class="t m33 x2 h5 y6b ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system</span></div><div class="t m5b x83 h5 y6c ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">architecture.Because</span></div><div class="t m9 x84 h6 y6d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m5c x85 h6 y6d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">these</span></div><div class="t m5d x44 h6 y6c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">advantages,the</span></div><div class="t m22 x86 h6 y6e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m3f x87 h6 y6d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m2a x7d h6 y6f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system</span></div><div class="t m39 x88 h6 y70 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">based</span></div><div class="t m2b x38 h8 y70 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">on</span></div><div class="t m5e x89 h4 y70 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">XMPP</span></div><div class="t m5f x8a h6 y71 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">for</span></div><div class="t m21 x14 h6 y72 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">enterprise</span></div><div class="t m2d x32 h6 y71 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">became</span></div><div class="t m60 x8b h4 y73 ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">an</span></div><div class="t m3a x5e h6 y73 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">essential</span></div><div class="t m21 x7a h6 y70 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">part</span></div><div class="t m9 x8c h6 y74 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m1c x60 h6 y74 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m61 x20 h5 y71 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">enterprises.</span></div><div class="t m41 x8d h6 y75 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">The</span></div><div class="t m5b x2 h6 y75 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">thesis</span></div><div class="t m55 x8e h6 y75 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">includes</span></div><div class="t m1c x8f h6 y76 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m62 x1c h6 y77 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">following</span></div><div class="t m63 x43 h9 y76 ff3 fs7 fc0 sc0 ls0 ws0"><span class="fc1 sc0">content:</span></div><div class="t m55 x90 h6 y78 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">1.A</span></div><div class="t m25 x12 h5 y79 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">summary</span></div><div class="t m39 x91 h6 y7a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">about</span></div><div class="t m0 x92 h5 y7a ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m24 x42 h6 y7a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">relevant</span></div><div class="t m3f x5c h6 y78 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">knowledge</span></div><div class="t m9 x93 h6 y7b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m5e x94 h4 y7b ff3 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">XMPP</span></div><div class="t m8 x95 h6 y7b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m1c x35 h6 y7c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m64 x96 h6 y7c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">detail</span></div><div class="t m2e x97 h6 y7a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">process</span></div><div class="t m9 x98 h6 y7c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m37 x7d h5 y7d ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">XMPP.</span></div><div class="t m42 x90 h6 y7e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">2.The</span></div><div class="t m5b x99 h6 y7e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">thesis</span></div><div class="t m9 x9a h6 y7f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">analyzed</span></div><div class="t m1c x14 h6 y80 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m65 x9b h6 y7f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">requirements</span></div><div class="t m9 x9c h6 y81 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m1c x17 h6 y81 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m66 x9d h6 y7e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">enterprise—class</span></div><div class="t m22 x9e h6 y82 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m23 x97 h6 y80 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m2a x9f h6 y83 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system,gave</span></div><div class="t m1c xa0 h6 y84 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m33 x1b h6 y84 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">overall</span></div><div class="t m42 xa1 h6 y85 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">design</span></div><div class="t m2d x64 h6 y84 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m1c xa2 h6 y84 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m33 xa3 h5 y86 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system</span></div><div class="t m8 x27 h6 y87 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m1c xa4 h6 y87 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m67 xa5 h6 y87 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">delineation</span></div><div class="t m9 xa6 h6 y88 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m68 xa7 h6 y88 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">functional</span></div><div class="t m4d x9f h6 y89 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">modules</span></div><div class="t m0 x57 h6 y8a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">in</span></div><div class="t m69 xa8 h6 y8a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">accordance</span></div><div class="t m9 x6 h6 y8a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">with</span></div><div class="t m1c xa9 h6 y8a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m21 x5b h6 y8b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">principles</span></div><div class="t m9 xa3 h6 y8c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m2a x9c h6 y89 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system</span></div><div class="t m8 x6d h6 y8c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m24 x34 h6 y8d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">function</span></div><div class="t m6a x1f h6 y8a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">design.</span></div><div class="t m67 x90 h6 y8e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">3.Realized</span></div><div class="t m1c xaa h6 y8e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m56 xab h6 y8e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">functions</span></div><div class="t m3b xac h6 y8e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">that</span></div><div class="t m2d x64 h6 y8f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">were</span></div><div class="t m6b x84 h6 y8f ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">demanded</span></div><div class="t m2d xad h6 y90 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">by</span></div><div class="t m0 x5f h5 y8f ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m2a x7a h6 y90 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m2a xae h6 y8e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">through</span></div><div class="t m7 x87 h5 y8e ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">combining</span></div><div class="t m9 x9f h6 y91 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">with</span></div><div class="t m4b xaf h6 y92 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">open.source</span></div><div class="t m40 xb0 h6 y93 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">package</span></div><div class="t m9 xb1 h6 y94 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m55 x71 h6 y93 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">protocol</span></div><div class="t m0 x84 h6 y94 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">in</span></div><div class="t m69 xb2 h6 y95 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">accordance</span></div><div class="t m9 xa4 h6 y95 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">with</span></div><div class="t m1c xb3 h6 y96 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m21 xb4 h6 y91 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">principles</span></div><div class="t m9 xa7 h6 y96 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m33 x62 h5 y94 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system</span></div><div class="t m6a x9f h6 y97 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">design.</span></div><div class="t m41 x58 h6 y98 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">The</span></div><div class="t m5b x12 h6 y98 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">thesis</span></div><div class="t m2e x83 h6 y98 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">focused</span></div><div class="t m2b xb5 h8 y98 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">on</span></div><div class="t m55 xac h6 y99 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">building</span></div><div class="t m22 xb6 h6 y9a ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">enterprise-class</span></div><div class="t m22 xb7 h6 y9b ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">instant</span></div><div class="t m23 x29 h6 y98 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m2a xb8 h6 y98 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m33 x9f h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">architecture</span></div><div class="t m2f xb9 h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">which</span></div><div class="t m28 x6a h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m21 xba h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">suitable</span></div><div class="t m0 xbb h5 y9c ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">for</span></div><div class="t m6a x5c h6 y9d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">China’S</span></div><div class="t m24 xbc h6 y9d ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">national</span></div><div class="t m6c xbd h6 y9e ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">condition</span></div><div class="t m2d x70 h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">by</span></div><div class="t m6d xbe h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">realizing</span></div><div class="t m25 x2c h6 y9c ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">open</span></div><div class="t m2b xa3 h8 y9f ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">U</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62553c13b744eb386fdc3502/bg4.jpg"><div class="t m48 xa h8 y9 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">source</span></div><div class="t m6e xbf h6 ya0 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">protoc01.Practices</span></div><div class="t m2a xba h6 ya0 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">proved</span></div><div class="t m3b xc0 h6 y9 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">that</span></div><div class="t m1c xb h6 y9 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m7 xc1 h5 y9 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">framework</span></div><div class="t m9 x94 h6 y9 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m1c xc2 h6 y9 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m59 xc3 h6 ya0 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">integration</span></div><div class="t m28 x74 h6 y9 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">was</span></div><div class="t m1a xc4 h6 ya0 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">powerful</span></div><div class="t m8 xa h6 ya1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span><span class="_ _2"> </span><span class="fc1 sc0">low</span></div><div class="t m6f xc5 h6 ya2 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">coupling.The</span></div><div class="t m3f xb5 h6 ya1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">framework</span></div><div class="t m2d x53 h6 ya1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">of</span></div><div class="t m1c xc6 h6 ya1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m70 x17 h6 ya2 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">integration</span></div><div class="t m25 xb3 h6 ya1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">enhanced</span></div><div class="t m1c xc7 h6 ya1 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m71 x47 h6 ya2 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system’S</span></div><div class="t m72 xa h6 ya3 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">maintainability</span></div><div class="t m8 xa0 h6 ya4 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">and</span></div><div class="t m21 x1b h6 ya3 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">scalability,which</span></div><div class="t m9 x3a h6 ya4 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">achieved</span></div><div class="t m1c xc8 h6 ya4 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">the</span></div><div class="t m73 x65 h6 ya3 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">goals</span></div><div class="t m56 xc2 h6 ya4 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">ofinstant</span></div><div class="t m23 xc9 h6 ya3 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m3b x2b h6 ya3 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">system.</span></div><div class="t m1b xca h5 ya5 ff3 fs3 fc0 sc0 ls0 ws0"><span class="fc1 sc0">Keywords:XMPP,smack,enterprise—class,XML,instant</span></div><div class="t m23 x67 h6 ya5 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">messaging</span></div><div class="t m2a xcb h6 ya5 ff3 fs4 fc0 sc0 ls0 ws0"><span class="fc1 sc0">systems</span></div><div class="t m0 x3b h8 ya6 ff3 fs6 fc0 sc0 ls0 ws0"><span class="fc1 sc0">III</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>
<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62553c13b744eb386fdc3502/bg5.jpg"><div class="t m74 x42 ha ya7 ff4 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">独创性声明</span></div><div class="t m75 x10 h7 y25 ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">本人声明,所呈交的论文是本人在导师指导下进行的研究工作及取得的研</span></div><div class="t ma xcc h7 yc ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">究成果。尽我所知,除了文中特别加以标注和致谢的地方外,论文中不包含其</span></div><div class="t ma xcc h7 ya8 ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">他人已经发表或撰写过的研究成果,也不包含为获得武汉理工大学或其它教育</span></div><div class="t ma xcc h7 ya9 ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何</span></div><div class="t m76 xcc h7 yaa ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">贡献均己在论文中作了明确的说明并表示了谢意。</span></div><div class="t m77 xad hb yab ff4 fs9 fc0 sc0 ls0 ws0"><span class="fc1 sc0">躲衅日期芈</span></div><div class="t m78 x4a ha yac ff4 fs8 fc0 sc0 ls0 ws0"><span class="fc1 sc0">关于论文使用授权的说明</span></div><div class="t m79 xcd h7 y61 ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">本人完全了解武汉理工大学有关保留、使用学位论文的规定,即:学校有</span></div><div class="t m7a xcc h7 y1c ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">权保留并向国家有关部门或机构送交论文的复印件和电子版,允许论文被查阅</span></div><div class="t m7a xcc h7 yad ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">和借阅。本人授权武汉理工大学可以将本学位论文的全部内容编入有关数据库</span></div><div class="t m7a xcc h7 yae ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">进行检索,可以采用影印、缩印或其他复制手段保存或汇编本学位论文。同时</span></div><div class="t m10 xcc h7 yaf ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">授权经武汉理工大学认可的国家有关机构或论文数据库使用或收录本学位论</span></div><div class="t m7b xcc h7 yb0 ff4 fs5 fc0 sc0 ls0 ws0"><span class="fc1 sc0">文,并向社会公众提供信息服务。</span></div><div class="t m7c xce h4 yb1 ff4 fs2 fc0 sc0 ls0 ws0"><span class="fc1 sc0">(保密的论文在解密后遵守此规定)</span></div><div class="t m7d xbf hc yb2 ff4 fsa fc0 sc0 ls0 ws0"><span class="fc1 sc0">一虢雠翩虢数期毕</span></div></div><div class="pi" data-data='{"ctm":[1.851296,0.000000,0.000000,1.851296,0.000000,0.000000]}'></div></div>