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29.1.2 使用Enterprise Services的场合
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C#高级编程（第3版）【全文连载】
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29.1.2 使用Enterprise Services的场合
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2006-10-13 14:41:00
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<h1 id="divCurrentNode" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165741.htm'><font color='red'>29.1.2 使用Enterprise Services的场合</font></a></h1>
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<div style='float:left;width:49%'>·<a href='100165738.htm'>28.5 小结</a></div><div style='float:right;width:49%'>·<a href='100165739.htm'>29.1 概述</a></div><div style='float:left;width:49%'>·<a href='100165740.htm'>29.1.1 Enterprise Services简史</a></div><div style='float:right;width:49%'>·<a href='100165742.htm'>29.1.3 环境</a></div><div style='float:left;width:49%'>·<a href='100165743.htm'>29.1.4 自动的事务处理</a></div><div style='float:right;width:49%'>·<a href='100165744.htm'>29.1.5 分布式事务处理</a></div></div>
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<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style='margin-top:8.15pt;margin-right:0cm;FTEL:8.15pt;margin-left:
0cm'><span lang=EN-US>29.1.2 </span><span style='font-family:黑体'>使用</span><span
lang=EN-US>Enterprise Services</span><span style='font-family:黑体'>的场合</span></h3>
<p class=MsoNormal><span style='font-family:宋体'>业务应用程序在逻辑上可以分为显示层、业务层和数据服务层。显示服务层</span><span
lang=EN-US>(presentation service layer)</span><span style='font-family:宋体'>负责用户交互，在该服务层上，用户可以与应用程序交互，输入和查看数据。在这个层上使用的技术是</span><span
lang=EN-US>Windows</span><span style='font-family:宋体'>窗体和</span><span
lang=EN-US>ASP.NET Web</span><span style='font-family:宋体'>窗体。业务服务层由业务规则和数据规则组成。数据服务层与持久存储器交互，在该层上可以通过组件来使用</span><span
lang=EN-US>ADO.NET</span><span style='font-family:宋体'>。</span><span lang=EN-US>Enterprise
Services</span><span style='font-family:宋体'>可以在业务服务层和数据服务层上使用。</span></p>
<p class=MsoNormal><span style='font-family:宋体'>图</span><span lang=EN-US>29-1</span><span
style='font-family:宋体'>显示了两个应用程序的情况。</span><span lang=EN-US>Enterprise Services</span><span
style='font-family:宋体'>可以直接在使用</span><span lang=EN-US>Windows</span><span
style='font-family:宋体'>窗体的胖客户机上使用，或在运行</span><span lang=EN-US>ASP.NET</span><span
style='font-family:宋体'>的</span><span lang=EN-US>Web</span><span
style='font-family:宋体'>应用程序上使用。</span></p>
<p align=center><span lang=EN-US><img width=420 height=207
src="29/image001.gif"></span></p>
<p align=center style='FTEL:8.15pt'><span style='font-family:宋体'>图</span><span
lang=EN-US> 29-1</span></p>
<p class=MsoNormal><span lang=EN-US>Enterprise Services</span><span
style='font-family:宋体'>也是一种可伸缩的技术。使用组件加载均衡技术，就可以在不同的系统上分布客户的负载。还可以在客户系统上使用</span><span
lang=EN-US>Enterprise Services</span><span style='font-family:宋体'>，因为该技术包含在</span><span
lang=EN-US>Windows XP</span><span style='font-family:宋体'>中。</span></p>
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<h1 id="divCurrentNode2" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165741.htm'><font color='red'>29.1.2 使用Enterprise Services的场合</font></a></h1>
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<div style='float:left;width:49%'>·<a href='100165738.htm'>28.5 小结</a></div><div style='float:right;width:49%'>·<a href='100165739.htm'>29.1 概述</a></div><div style='float:left;width:49%'>·<a href='100165740.htm'>29.1.1 Enterprise Services简史</a></div><div style='float:right;width:49%'>·<a href='100165742.htm'>29.1.3 环境</a></div><div style='float:left;width:49%'>·<a href='100165743.htm'>29.1.4 自动的事务处理</a></div><div style='float:right;width:49%'>·<a href='100165744.htm'>29.1.5 分布式事务处理</a></div></div>
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